Welcome to the North American Subaru Impreza Owners Club Monday March 18, 2019
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Motorsports > Autocross

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-25-2013, 10:25 PM   #801
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by senna1a View Post
So I've decided to start an SM build with my GR STi, none running nationally that I've seen ... but it will be a multi-year process. I'll more than likely shoot to get it up and running for our local SM Street-tire class in 2014, then add as time/money permits for 2015. Since I've been a predominately stock class driver over the last +20 years, I'll more than likely pick some folks brains on some things... looking forward to the build over the winter.
Welcome to following in my shoes Ask Aaron Ritch where you should mount the alcohol injection controller if you want a laugh. Me, Kyle Adams, and another guy (can't remember his name, drove a supercharged TC) were there the season that SMS started, glad that another Subaru will be joining Ryan at Ackerman.

Quote:
Originally Posted by Aczwild View Post
I wish I was done with my engine build/swap and I'd come out to play with my swapped coupe. Next year you'll have another player in the southern sm subie game
Tad? I know I've seen a few swaps around, but none that were really serious yet. How far along is your swap?
* Registered users of the site do not see these ads.
subydude is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-27-2013, 11:33 AM   #802
senna1a
Scooby Newbie
 
Member#: 231943
Join Date: Dec 2009
Chapter/Region: MWSOC
Location: Columbus, OH
Vehicle:
2011 Sti
& '03 Bugeye

Default

Quote:
Originally Posted by subydude View Post
Welcome to following in my shoes Ask Aaron Ritch where you should mount the alcohol injection controller if you want a laugh. Me, Kyle Adams, and another guy (can't remember his name, drove a supercharged TC) were there the season that SMS started, glad that another Subaru will be joining Ryan at Ackerman.
Aaron's already given me a few laughs of when SMS all began.

Looking forward to seeing you and your GC out some nationally this coming year!
senna1a is offline   Reply With Quote
Old 10-31-2013, 11:35 AM   #803
Seahawk
Scooby Specialist
 
Member#: 71665
Join Date: Oct 2004
Chapter/Region: South East
Location: Wilmington, NC
Vehicle:
1994 Impreza
White

Default

Hey guys, I'm popping my auto-x cherry in about a month and really looking forward to it. I just got my car on the road after a lot of work over the past year and have always wanted to get into auto-x.

I emailed my SCCA chapter president yesterday with my mod list and he said to run in SM, and said "I don't see anything else on your list that would bump you up to anything higher than that".

I've read through this whole thread and learned a few things. Just wanted to introduce myself and get more familiar with this class.

Here's my mod list:

1994 Subaru Impreza Base Sedan

General/Misc
Converted from FWD to AWD, including 2002 WRX Fuel Tank and Lines
Converted from Cable to Hydraulic Clutch
Merged 1994 Impreza/2002 WRX Electrical Harnesses
AC completely removed, including compressor, lines, evaporator, canister, etc.
All unnecessary wiring and components removed, including rear speakers, cruise control, ABS, etc.
All sound deadening removed
Retained 1994 Airbag System
Big Crank ETX-14 Battery

Engine
2003 WRX EJ205
MRT Performance Catless Up Pipe, wrapped with DEI Titanium Exhaust Wrap
Unknown 4 Catted Down Pipe
Exhaust Manifolds wrapped with DEI Titanium Exhaust Wrap
TurboXS UTEC, tuned at 16.5psi
TurboXS Manual Boost Controller
2005 STi Exhaust Midpipe and Axleback
WRX Fluidyne Radiator/WRX Fans
2005 STi 90 Amp Alternator
Subaru AC delete alternator bracket

Transmission
2003 WRX 5 speed manual transmission
2003 WRX Clutch Master Cylinder, lines, brackets, and slave cylinder
Exedy OE replacement clutch
2002 WRX Rear Differential
2002 WRX Shifter Assembly and Cables

Suspension/Steering/Drivetrain
2003 WRX Struts/Shocks
Eibach Pro Kit for 2002-2003 WRX Sedan
2002 WRX Front and Rear Sway Bars
2002 WRX Front and Rear Cross Members
2002 WRX Steering Rack
Hybrid 1994 Impreza/2003 WRX Steering Shaft Coupler
1995 Legacy Rear Top Hats
eBay H Brace and Front Strut Bar

Brakes
2003 WRX Front and Rear Calipers, Lines, Rotors, and Parking Brake Cables
1995 Subaru Legacy Wagon 4-port non-ABS 1 Brake Master Cylinder
1995 Subaru Legacy Wagon non-ABS Brake Proportioning Valve
Hill-Holder Removed
ATE Super Blue Brake Fluid

Body Exterior
JDM V1/V2 Lightweight Aluminum Hood
2003 WRX Intercooler Splitter w/ Custom IC Spray Nozzles
1997 Subaru Impreza L Front Bumper
2005 Subaru 2.5i Enkei Wheels

Body Interior
2002 WRX Pedals and Brackets
2003 WRX Gauge Cluster
2005 STi Front and Rear Seats
GReddy Gauges: Oil Temperature, Oil Pressure, EGT under radio
Omori Boost Gauge in column surround pod
Dual Stereo Headunit with Bluetooth and iPod integration
Custom Windshield Washer and Intercooler Spray Reservoirs in Trunk
Programmable shift lights and buzzer
Flocked dash

Let me know if anything sticks out as illegal in SM. Also any advice or comments are welcome!

Ben
Seahawk is offline   Reply With Quote
Old 10-31-2013, 11:42 AM   #804
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

The sound deadening removal might be illegal in SM if it was there on the lowest spec chassis that year. And you also might be under the minimum weight for the class. Based on everything else in the build though, I dont think anyone will really car because its going to handle like poop with stock sway bars and eibach springs with unknown tires anyways.
Leafy is offline   Reply With Quote
Old 10-31-2013, 11:45 AM   #805
Seahawk
Scooby Specialist
 
Member#: 71665
Join Date: Oct 2004
Chapter/Region: South East
Location: Wilmington, NC
Vehicle:
1994 Impreza
White

Default

Thanks for your feedback

Planning to get the car weighed soon

Just looking to have some fun with it
Seahawk is offline   Reply With Quote
Old 10-31-2013, 12:41 PM   #806
k-dogg
Scooby Newbie
 
Member#: 115961
Join Date: May 2006
Location: Lake Tahoe, NV
Vehicle:
2005 Wide STi Wagon
WR BLUE

Default

Isn't the "H" brace not legal? There also may be something with the cross member where the original is supposed to be used. Some modify theirs with a BFH technique.
k-dogg is offline   Reply With Quote
Old 10-31-2013, 12:58 PM   #807
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Cross member is legal now, but the H brace is not. I bought one, then sold it later when I read the rules. The sound deadening removal is also illegal.

All that being said, no one will care until you start beating people.

What's your first event? I'm planning on being at ZMax this weekend with CCR in Charlotte, then at several others around SC/NC for the rest of the year.
subydude is offline   Reply With Quote
Old 10-31-2013, 12:58 PM   #808
Aczwild
Scooby Specialist
 
Member#: 71721
Join Date: Oct 2004
Chapter/Region: NESIC
Location: Charlotte, NC
Vehicle:
'98 RS (Racecar)
'13 Sierra, '16 BMW 328i

Default

Quote:
Originally Posted by subydude View Post
Tad? I know I've seen a few swaps around, but none that were really serious yet. How far along is your swap?
Nope, name's Jon. Its an in process purpose build, so by the end it'll be pretty serious. Ran it N/A for a while in the NER region and could take out the "weaker" SM STI's and EVO's but it always killed me having the Panda at the events and seeing what real competition was, so thats the goal of the build is to make it into a national contender. I know I have the driving skills I just need the power now.

"Stage 1" of the engine build is mild, WRX 2.0 longblock that's been mildly built with a JDM V9 twinscroll setup. "Stage 2" will be getting the 22T block I have machined and then building that up with the WRX heads and probably a beefier twinscroll setup. This next year will be about getting the car and electronics working correctly for the bump in power and sorting out the suspension for the characteristics with the power gain and weight transfer.

Aczwild is offline   Reply With Quote
Old 10-31-2013, 01:06 PM   #809
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

If you're staying stock location, contact steam speed and tell them you want a garret BB center housing with a td06 STS trubine wheel in a 10cm stock location housing with a billet 20g compressor wheel and 3" antisurge cover. If you're not staying stock location you're stupid if you dont put an EFR in it.

That car looks familiar...
Leafy is offline   Reply With Quote
Old 10-31-2013, 01:06 PM   #810
k-dogg
Scooby Newbie
 
Member#: 115961
Join Date: May 2006
Location: Lake Tahoe, NV
Vehicle:
2005 Wide STi Wagon
WR BLUE

Default

Quote:
Originally Posted by subydude View Post
Cross member is legal now, but the H brace is not. I bought one, then sold it later when I read the rules. The sound deadening removal is also illegal.
Oh nice. When did the cross member change? I have a friend doing a swap, this will make him happy.
k-dogg is offline   Reply With Quote
Old 10-31-2013, 01:09 PM   #811
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by k-dogg View Post
Oh nice. When did the cross member change? I have a friend doing a swap, this will make him happy.
For the beginning of this (2013) season (or was it 2012?). You can run any subframe as long as it; A weighs as much as stock, and B has the stock suspension geometry (anti-lift kits are still illegal) and C is required for alternative engine fitment. But you can also use the update back date allowance to just switch to different stock subframes.
Leafy is offline   Reply With Quote
Old 10-31-2013, 01:12 PM   #812
Seahawk
Scooby Specialist
 
Member#: 71665
Join Date: Oct 2004
Chapter/Region: South East
Location: Wilmington, NC
Vehicle:
1994 Impreza
White

Default

Quote:
Originally Posted by subydude View Post
All that being said, no one will care until you start beating people.

What's your first event? I'm planning on being at ZMax this weekend with CCR in Charlotte, then at several others around SC/NC for the rest of the year.
Seems to be the common response. At this point because I'm so new to it I'm really just trying to get my feet wet and get familiar with my car. As of now I'm the only one signed up in the SM class. I've spectated a few events and it's a pretty laid back crowd, seems most folks are just out to have a good time.

My first events are here in Wilmington, both at the Cape Fear Community College North Campus. On 11/31 it is the Turns for Tots charity event and on 12/1 it's a non-points event.
Seahawk is offline   Reply With Quote
Old 10-31-2013, 01:22 PM   #813
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by Aczwild View Post
Nope, name's Jon. Its an in process purpose build, so by the end it'll be pretty serious. Ran it N/A for a while in the NER region and could take out the "weaker" SM STI's and EVO's but it always killed me having the Panda at the events and seeing what real competition was, so thats the goal of the build is to make it into a national contender. I know I have the driving skills I just need the power now.

"Stage 1" of the engine build is mild, WRX 2.0 longblock that's been mildly built with a JDM V9 twinscroll setup. "Stage 2" will be getting the 22T block I have machined and then building that up with the WRX heads and probably a beefier twinscroll setup. This next year will be about getting the car and electronics working correctly for the bump in power and sorting out the suspension for the characteristics with the power gain and weight transfer.
Should be fun to have another swapped car out there I run SCR, CCR, Buccaneer, and ATL events so I'm sure I'll see you out once yours is ready. Mine's the white one with all the cone scuffs that sends corner workers flying

I wouldn't worry too much about setting up the suspension to deal with power/weight transfer on these cars. I'd suggest copying one of the STU or ASP setups and calling it a day since they're generally heavier and the lighter weight of the GC's means your natural frequencies end up being what I consider to be "good".

I'd focus instead of getting the drivetrain to put down the power you do have in the most efficient way possible. And finding another car to drive in the down time for extra seat time. There's an event at ZMax on Saturday that should be quite fun!
subydude is offline   Reply With Quote
Old 10-31-2013, 01:29 PM   #814
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by Leafy View Post
If you're staying stock location, contact steam speed and tell them you want a garret BB center housing with a td06 STS trubine wheel in a 10cm stock location housing with a billet 20g compressor wheel and 3" antisurge cover. If you're not staying stock location you're stupid if you dont put an EFR in it.

That car looks familiar...
I still like the Blouch 1.5xtr for the stock location, but I'm still eyeing that EFR7163. If it's all it's cracked up to be I might finally spring for the rotated setup using that turbo. Unless the E85 tune is "enough"


Quote:
Originally Posted by Leafy View Post
For the beginning of this (2013) season (or was it 2012?). You can run any subframe as long as it; A weighs as much as stock, and B has the stock suspension geometry (anti-lift kits are still illegal) and C is required for alternative engine fitment. But you can also use the update back date allowance to just switch to different stock subframes.
Proposed in 2012, now in the rule book for 2013 IIRC. The GC and GD are on different lines so you can't UP/BD in SM like that. I used the BFH method until this year when I put in a legacy turbo subframe from the early 90's.

Quote:
Originally Posted by Seahawk View Post
Seems to be the common response. At this point because I'm so new to it I'm really just trying to get my feet wet and get familiar with my car. As of now I'm the only one signed up in the SM class. I've spectated a few events and it's a pretty laid back crowd, seems most folks are just out to have a good time.

My first events are here in Wilmington, both at the Cape Fear Community College North Campus. On 11/31 it is the Turns for Tots charity event and on 12/1 it's a non-points event.
Yep, no one's going to care for quite a while. In the end, you can always get some cheap sound deadening from Amazon and fix the removal. Sell the H brace or cut it up so that it's a simple cross brace and then you're golden.
subydude is offline   Reply With Quote
Old 10-31-2013, 01:36 PM   #815
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by subydude View Post
I still like the Blouch 1.5xtr for the stock location, but I'm still eyeing that EFR7163. If it's all it's cracked up to be I might finally spring for the rotated setup using that turbo. Unless the E85 tune is "enough"
But he's running a stock location TS setup. Thats why I suggested it. I think blouch turbos are more hype then results/dollar. The turbo I suggested would more or less be the same as a 20gXTR but with a lower inertia, better spooling, and higher flowing turbine wheel. You could also substitute any of the garrett GTX compressor wheels in that turbo if you felt the need to make more power.
Leafy is offline   Reply With Quote
Old 11-02-2013, 09:38 AM   #816
Butt Dyno
Street's closed, pizza boy
 
Member#: 17301
Join Date: Apr 2002
Chapter/Region: MAIC
Location: NoVA
Vehicle:
2016 FoST ST3
2006 Evo #17 STU

Default

Quote:
Originally Posted by Aczwild View Post
Nope, name's Jon. Its an in process purpose build, so by the end it'll be pretty serious. Ran it N/A for a while in the NER region and could take out the "weaker" SM STI's and EVO's but it always killed me having the Panda at the events and seeing what real competition was, so thats the goal of the build is to make it into a national contender. I know I have the driving skills I just need the power now.

"Stage 1" of the engine build is mild, WRX 2.0 longblock that's been mildly built with a JDM V9 twinscroll setup. "Stage 2" will be getting the 22T block I have machined and then building that up with the WRX heads and probably a beefier twinscroll setup. This next year will be about getting the car and electronics working correctly for the bump in power and sorting out the suspension for the characteristics with the power gain and weight transfer.

Whoa, unicorn!

Please keep your wheels gold as the build progresses
Butt Dyno is offline   Reply With Quote
Old 11-02-2013, 12:57 PM   #817
senna1a
Scooby Newbie
 
Member#: 231943
Join Date: Dec 2009
Chapter/Region: MWSOC
Location: Columbus, OH
Vehicle:
2011 Sti
& '03 Bugeye

Default

Quote:
Originally Posted by subydude View Post
I still like the Blouch 1.5xtr for the stock location, but I'm still eyeing that EFR7163. If it's all it's cracked up to be I might finally spring for the rotated setup using that turbo. Unless the E85 tune is "enough"
Found this thread that has some turbo data compiled together. Post 3 has turbo's sorted in flow order (high to low):
http://forums.nasioc.com/forums/show....php?t=2559017

More to it than just airflow, but helps compare as I consider my build longterm.

Edit: The 7163 isn't in the compiled data, but from what I read on this turbo, I think it should be on my shortlist as Leafy & subydude noted.

Last edited by senna1a; 11-02-2013 at 06:20 PM.
senna1a is offline   Reply With Quote
Old 11-02-2013, 09:07 PM   #818
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by senna1a View Post
Found this thread that has some turbo data compiled together. Post 3 has turbo's sorted in flow order (high to low):
http://forums.nasioc.com/forums/show....php?t=2559017

More to it than just airflow, but helps compare as I consider my build longterm.

Edit: The 7163 isn't in the compiled data, but from what I read on this turbo, I think it should be on my shortlist as Leafy & subydude noted.
Did an event today (poorly) and I think I had .5 seconds of lag for the whole course combined. Fast, flowing sections where the car would just take off. Used the center diff controller to control the now 114 run hoosiers pretty well. Power seems healthy but I know the lag is there below 4k rpm. I'll do more events with the car and see what I think. Maybe call full race afterwards and chat with them about some EFR possibilities. The 62/67 turbo's appeal to me for the quick spool, but the 71 just seems to make so much more power.

Speaking of power, a local evidently did a dyno pull on the same dyno my car was tuned on, then went to another local dyno (dynojet I think) and found a 13% difference. Means I now have a 384whp car

On a somewhat nervous note, I found out today that Motul 300 gear oil allows you to shift from 2nd to 1st at 62 mph and spin the motor to about 9k. I let the clutch out, then pushed it right back in, then finished the course (about 40 seconds left) with no issues at full song. Parked the car, checked the oil, listened to it, let it cool off, warmed it back up, and everything seems fine. Basically had a minor heart attack Back when I bought the rods and valvetrain bits I really didn't care about ratings for RPM, but I'm sure glad I got all the stuff that says "10,000 rpm" on it now. Still, we'll see how it does at the next event to be sure.
subydude is offline   Reply With Quote
Old 11-02-2013, 09:15 PM   #819
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Smooth move. With the turbos. How much power do you really need? The 6758 is going to be close to 450awhp on e85 probably more around 430. A rwd car with a decent engine and setup should be able to hit 480rwhp with it on e85. The "new" compressor map shows that should be possible. We already have a miata with a log manifold making 450 with one, my car is a new tranny and a tank full of alcohol away from that as well.

On the full race aspect. I wouldnt pay more than $700 for their up pipe and down pipe with some hoses. I'm not sure how that have managed to make it so damn expensive. For that kind of money you could buy a tubular manifold and downpipe for any other car. I would just make the setup yourself, the hardest part will be finding the correct bolt on oil pipe for the turbo and adapting the other fluids connections. The downpipe and up pipe will be a piece of cake. And THIS IS STREET MOD, if your parts arent custom you arent trying hard enough.
Leafy is offline   Reply With Quote
Old 11-02-2013, 09:38 PM   #820
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by Leafy View Post
Smooth move. With the turbos. How much power do you really need? The 6758 is going to be close to 450awhp on e85 probably more around 430. A rwd car with a decent engine and setup should be able to hit 480rwhp with it on e85. The "new" compressor map shows that should be possible. We already have a miata with a log manifold making 450 with one, my car is a new tranny and a tank full of alcohol away from that as well.

On the full race aspect. I wouldnt pay more than $700 for their up pipe and down pipe with some hoses. I'm not sure how that have managed to make it so damn expensive. For that kind of money you could buy a tubular manifold and downpipe for any other car. I would just make the setup yourself, the hardest part will be finding the correct bolt on oil pipe for the turbo and adapting the other fluids connections. The downpipe and up pipe will be a piece of cake. And THIS IS STREET MOD, if your parts arent custom you arent trying hard enough.
To be honest, I think 350 or so is the minimum entry whp for SM. I know Simyani is low 300's, but the car is narrow and very well setup. For the wider boost buggies (and everyone else basically) I think high 300's to low 400's is the sweet spot for spool vs power. On mine with completely bald hoosiers I can flat foot a few elements, and then I'm at redline. More power is better....but I think 450 whp would be plenty.

I tend to buy used, otherwise I tend to make. I've priced out the cost for the tubing though and to use what I want (sch 5 321SS) it's not a huge leap in price to something pre-made. We'll see. There's still plenty of steps to take on my current setup before ditching it. E85 tune, ditch the factory cast exhaust mani, better TMIC, test for boost leaks.....not rev it to 9k

You need to tell the Hymans about not trying hard enough as well
subydude is offline   Reply With Quote
Old 11-02-2013, 09:47 PM   #821
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

I think 321 is not required, 304 will be more than sufficient, especially for the down pipe, and especially with e85 egts. Maybe drop the money on 321 for the up pipe so you dont have to run any bracing on it (because **** those braces mine never made it back on #YOLOSWAG).
Leafy is offline   Reply With Quote
Old 11-02-2013, 10:07 PM   #822
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by Leafy View Post
I think 321 is not required, 304 will be more than sufficient, especially for the down pipe, and especially with e85 egts. Maybe drop the money on 321 for the up pipe so you dont have to run any bracing on it (because **** those braces mine never made it back on #YOLOSWAG).
I think it's needed for the manifold/UP. Downpipe? Yeah, no caring there, I'd get the v-band bit I need and just graft it on to my existing pipe. I know the E85 EGT's are inside 304's rough 1,600 degree limit by a few hundred degree's for continuous use, but I like safety buffers for stuff like anti-lag when things get really toasty in the manifold.

Sch 10 304 is what full race's manifolds are made of IIRC. They solve the brittle problem but putting more material there at the expense of weight (not that it matters THAT much).
subydude is offline   Reply With Quote
Old 11-02-2013, 10:11 PM   #823
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

At the up pipe I would be surprised if you even see 1400*F on 93. I wouldnt want to see over 1600*F at the head on these cars unless you're running a live grenade.

Your current downpipe wont work with the belmouth cutoff. And replaced. You're going to have to redo almost all of it. It would be cheaper to just buy $150 worth of 3.5" 16ga 304 and the $35 treadstone v-band then sell your current down pipe to break even or profit.
Leafy is offline   Reply With Quote
Old 11-02-2013, 10:20 PM   #824
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
What's A Head Gasket?

Default

Quote:
Originally Posted by Leafy View Post
At the up pipe I would be surprised if you even see 1400*F on 93. I wouldnt want to see over 1600*F at the head on these cars unless you're running a live grenade.

Your current downpipe wont work with the belmouth cutoff. And replaced. You're going to have to redo almost all of it. It would be cheaper to just buy $150 worth of 3.5" 16ga 304 and the $35 treadstone v-band then sell your current down pipe to break even or profit.
Since my EGT probe is tapped into the header and not the UP I wouldn't know, but with 1&3 dumping almost directly into the UP, I'd wager a guess it's still within 100* of the ports. The car's running richer right now, but I've seen 1,600 + during a pull. Timing plays a big role in the temps there and I'm not running a lot of advance currently. Using the LC spikes temps to "high" as well, so if you ever see the car at a pro solo tree I won't be one of the guys that just sits there using LC for 5 seconds.

I went and looked at the full race site....Damn, I didn't realize they were charging $1,500 for two pipes and some ss lines/fittings. Looked at the pipe briefly and saw what you were talking about in terms of bends.

All hypothetical anyway since I'm lazy and still have a blouch under the hood
subydude is offline   Reply With Quote
Old 11-03-2013, 02:19 AM   #825
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Yeah on most cars 1600*F is my abort temp for EGTs. Advance your timing you *****. Unless someone really wants the car tuned to the razors edge then I'll find 1700* acceptable for very short intervals.
Leafy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Will my trans swap put me automatically in Street Mod? RebelINS Autocross 6 07-22-2013 05:24 PM
I'm still legal for Street Mod right?(list inside) Davenow Motorsports 4 05-24-2003 03:21 AM
street mod tire question Jaxx Motorsports 2 02-20-2003 07:59 PM
Autocross class... Street Mod? Motohead1 South East Region Forum 11 06-26-2001 10:11 AM
Street Mod news Eric Technical Forum Archive 5 05-31-2000 02:33 PM

All times are GMT -4. The time now is 03:18 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.