Welcome to the North American Subaru Impreza Owners Club Monday June 27, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > NASIOC Project Cars

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 04-13-2011, 07:32 PM   #326
Scooby Newbie
 
Member#: 227025
Join Date: Oct 2009
Location: Marietta, GA
Vehicle:
2011 STI/GT-R/GT3
White

Default

Quote:
Originally Posted by betterthansx View Post
Not sure if I missed something...but when does the built block and big boost come?
Approximately 3-4 more weeks. It's nice they we are still keeping the car running on the road, while quite a bit is happening in the background.


We will be at RA this weekend testing the 2011 STi with the new JRZ RS1's which finally arrived.
http://forums.nasioc.com/forums/show....php?t=2166024
* Registered users of the site do not see these ads.

Last edited by [email protected]; 04-13-2011 at 07:43 PM.
Sharif@Forged is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 04-13-2011, 07:52 PM   #327
betterthansx
Scooby Specialist
 
Member#: 259103
Join Date: Sep 2010
Chapter/Region: E. Canada
Location: Central Ontario
Vehicle:
07' Mazdaspeed3
Cosmic Blue

Default

Quote:
Originally Posted by [email protected] View Post
Approximately 3-4 more weeks. It's nice they we are still keeping the car running on the road, while quite a bit is happening in the background.


We will be at RA this weekend testing the 2011 STi with the new JRZ RS1's which finally arrived.
http://forums.nasioc.com/forums/show....php?t=2166024
What are you expecting to do once the motor is in? What PSI and power outputs you looking for? Also when is the AMS intake going on?
betterthansx is offline   Reply With Quote
Old 04-14-2011, 10:42 AM   #328
Scooby Newbie
 
Member#: 276863
Join Date: Mar 2011
Default

Hey guys and girls, just a little teaser update on whats next for the Forged Performance STi!








What your looking at is a Manley stoker kit, including crank, rods, pistons, valves and springs with ACL bearings.

Next up, the first and only set available right now...




That's right, we have the first and only set available of JRZ RS1 which are a new design.

And thats how its done.
Zach@Forged is offline   Reply With Quote
Old 04-14-2011, 10:53 AM   #329
GDAryder
Scooby Specialist
 
Member#: 184753
Join Date: Jul 2008
Chapter/Region: Tri-State
Location: Poconos. PA
Vehicle:
2005 WRX
PSM

Default

Winning
GDAryder is offline   Reply With Quote
Old 04-14-2011, 11:10 AM   #330
betterthansx
Scooby Specialist
 
Member#: 259103
Join Date: Sep 2010
Chapter/Region: E. Canada
Location: Central Ontario
Vehicle:
07' Mazdaspeed3
Cosmic Blue

Default

Quote:
Originally Posted by GDAryder View Post
Winning
Im not Bi-Polar...Im Bi-Winning

Duh...Winning

must be all that tiger blood....lol
betterthansx is offline   Reply With Quote
Old 04-18-2011, 07:44 PM   #331
Scooby Newbie
 
Member#: 227025
Join Date: Oct 2009
Location: Marietta, GA
Vehicle:
2011 STI/GT-R/GT3
White

Default

As sometimes the case when doing R&D and testing with manufacturers you have a few snags. After carefully installing the shocks and measuring suspension droop travel, and installed height it's clear we have to shorten the shock but a significant amount in order to have proper amounts of suspension travel under road and race conditions. Otherwise we risk bottoming out the shock which is a bad thing.

It's this type of attention to detail that's part of the reason companies like JRZ like to work with Forged. We tested a bit more at Road Atlanta but still on brand X.
Sharif@Forged is offline   Reply With Quote
Old 04-19-2011, 02:31 AM   #332
mke723
Scooby Newbie
 
Member#: 219094
Join Date: Aug 2009
Chapter/Region: MWSOC
Vehicle:
07 95L-RS Rally
custom OBS paint

Default

i just read start to finish, nice build, could use more details/ install photos. but we understand you have 50 other projects and customer cars.
mke723 is offline   Reply With Quote
Old 04-21-2011, 07:02 PM   #333
Sk8er
Scooby Newbie
 
Member#: 129045
Join Date: Oct 2006
Chapter/Region: TXIC
Vehicle:
2004 Subaru WRX Sti
Blue

Default

Quote:
Originally Posted by [email protected] View Post
Well, this weekend's test went very well. Unfortunately do to the extreme levels of traffic at Road Atlanta with up to 50 cars on track at once, it was impossible to gather any solid lap times or meaningful analytical data this time around. But it did allow me to shake down the car, and data logging numerous engine parameters and see how our current mix of parts are working together.

I am happy to report that we are making terrific progress. Even without the JRZ's installed our current setup on our 2011 STi has an outrageous amount of turn response, neutrality, and most importantly....gobs and gobs of mechanical grip. Even intentionally trying to get the chassis out of shape with violent throttle and steering applications didn't fade our STi. And of course, close to 500whp on the stock block is enough to put a grin on anyone's face.

Late last year, I tested our car in bone stock trim, and it was a slush box that lacked any type of precision. It was almost laughable the levels of body roll and understeer and slow steering response. Now all that has changed in a big way. I can point the nose of the car at will, to any point on the track I desire with full throttle coming on before the apexes giving a moment for the full furry of this big turbo to be unleashed. Despite it's large size, the turbo was very responsive and after adjusting to the power delivery I was able to work with the powerband effectively. The Whiteline bushings and correction kit resulted in razor sharp, almost telepathic steering response. It's hard to describe just how good everything in the car feels right now. Taking rubber and soft bushings out of the car should be any serious enthusiasts first mod. While we are waiting on our JRZ's we installed a set of Brand X coilovers so we could at least properly corner-balance and make ride height adjustments to the car. Having driven some of the best motorsport shocks in the business, it was obvious that Brand X had it's limitations. Certainly a good shock for the street, and occasional track use, but not quite up to our levels for professional level motorsports use. The damping was not sufficient on several areas of the track, requiring a lot of steering input and anticipatory corrections to keep the chassis under control. The ride quality on the street is pretty harsh and bumpy too...another indication of less than ideal damping. But then again, not bad for a roughly $1000 set of coilovers, and far better than OEM.

As mentioned, we ran our Stop Tech BBK with the included street pads to see how they would fair under full race use. Surprisingly, they held up better than I expected but definitely a dedicated track pad is needed to consistently haul the car down. Carbotech XP12's will be next. Nothing inspires more confidence on a race track than really awesome brakes.

We ran the car the whole weekend on E85 fuel, and experienced not even one minor hiccup. I datalogged every session and experience zero knock and very clean data. With this much power, our cooling system needs a bit more work but that was to be expected. There is much more left in the car, and we're looking forward to testing again and gathering some more hard data on April 16- 17th at Road Atlanta.

Lastly, I wanted to thank many of you for coming down and hanging out and watching us. I saw many Subaru owners/fans/onlookers parked up the hills watching our little four door 4 banger, blowing by everything in it's path. We had a lot of fun, the car sounded and performed like magic and I am sure we surprised quite a few Porsche and Vette owners in the process. Thanks, and see you all soon. GAScoob was the lucky guy that got the only passenger ridealong on our STi. I wasn't sure if he was smiling from fear, or excitement or a little bit of both. But needless to say, he got the ride of his life and we enjoyed having him along for the ride. Making adjustments for traffic, I am estimating our pace at about 1:37. our GT3 currently laps at 1:33. I am going to try and extrapolate what I can, from our data analysis tools and at least pull away some interesting facts which I will share between the two cars.

We have more photos and video in production right now, but here is a quick on-car video that I put together myself. VIDEO: YouTube - Forged Performance Subaru STi Road Atlanta Shakedown Testing

Well Sharif you should had your techs park the car in Grid early. So you could at least have 2 solid laps of full pace. That is what I did that weekend, but sadly 2 laps in and I would catch up to traffic
Sk8er is offline   Reply With Quote
Old 04-22-2011, 12:46 AM   #334
Scooby Newbie
 
Member#: 276863
Join Date: Mar 2011
Default

Hey Guys,

Here's another little teaser to keep your mouths watering

The AMS Prototype STi Intake Manifold








We've seen power gains of 20whp and considerably more torque. Stay tuned for dyno charts and videos tomorrow!

- Zach
Zach@Forged is offline   Reply With Quote
Old 04-22-2011, 02:18 AM   #335
XanRules
Scooby Guru
 
Member#: 157348
Join Date: Aug 2007
Chapter/Region: NWIC
Location: Benghazi
Vehicle:
1996 JNCO Jorts
Stonewashed Denim

Default

huh, the AMS manifold exists after all.
XanRules is offline   Reply With Quote
Old 04-22-2011, 11:53 AM   #336
AMS
Former Vendor
 
Member#: 27854
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: West Chicago, IL
Vehicle:
STI, WRX, GTR, EVO,
BMW, Porsche, + More!

Default

Quote:
Originally Posted by [email protected] View Post
Hey Guys,

Here's another little teaser to keep your mouths watering

The AMS Prototype STi Intake Manifold



We've seen power gains of 20whp and considerably more torque. Stay tuned for dyno charts and videos tomorrow!

- Zach
Awesome! Can't wait!

-Ty
AMS is offline   Reply With Quote
Old 04-22-2011, 12:34 PM   #337
Scooby Newbie
 
Member#: 276863
Join Date: Mar 2011
Default

Ok, the moment you've all been waiting for. Before reviewing the dynos I would like to review my testing methodology so that everyone is on the same page with respect to the gains achieved.

At Forged Performance, we take delta testing very seriously. I personally handle all aspects of the process to ensure a true and accurate comparison. Results can easily, yet often, become unintentionally skewed in either direction. But our objective is to give you all a true no-BS assessment of any part that we test.

That said, here is our testing methodology.

1) E85 Fuel and Stock Engine (Baseline was 196whp on our dyno)
2) Boost pressure reduced to 23psi to insure a very stable AF ratio while not overwhelming our single fuel pump.
3) Same day test 6 hours apart and vehicle was not unstrapped or moved from the dyno. We had to do quite a bit of modification to make this prototype fit, but of course production versions will be bolt on like all AMS products.
4) Ambient temp was within 3 degrees F variation in our shop, through the dyno testing process.
5) Ramp rate (load on the rollers) was reduced to 140 in order to reduce the effects of heat soak, which can mislead the results.
4) Dyno Fan running for all runs.
5) 2 second "dwell" or hold time before releasing the dyno. For reference, the dwell time can alter the boost ramp up as it pre-heats the turbo.
6) The lowest and highest dyno numbers are rejected for both plenums as well as any unusually high or low numbers.
7) AF and boost was equalized within .2 psi and .2 AF ratio points for a true apples to apples comparison of the gains. Boost curve is posted for reference so there is no dispute on boost levels run.

That said, the results were outstanding at such low boost pressure. We achieved a peak of 20whp and 28lb/ft trq. More impressively, there was virtually no loss of power or trq anywhere on the curve, and many areas showed gains of 30whp and 40lb/ft! So in addition to a notable peak power improvement, we saw a tremendous improvement in area under the curve throughout the power band.

So far, we are very pleased with the AMS Protoype STi plenum. We feel the gains will be even more impressive as we raise the boost further after our FP S2 stroker race engine goes in. We will be working with AMS closely on some additional changes and modifications to make this plenum the best out there.

And the best part......we have a video coming soon!









Zach@Forged is offline   Reply With Quote
Old 04-22-2011, 12:49 PM   #338
scooby24
Scooby Specialist
 
Member#: 56414
Join Date: Mar 2004
Chapter/Region: MWSOC
Location: Olathe, KS
Vehicle:
2004 Forester XT 5MT
PSM

Default

Wow, I can't believe the stock block is holding up to that kind of power.
scooby24 is offline   Reply With Quote
Old 04-22-2011, 01:03 PM   #339
DRayKS2011STi
Scooby Newbie
 
Member#: 265651
Join Date: Dec 2010
Chapter/Region: NESIC
Location: CT
Vehicle:
2013 Focus ST
Tuxedo Black

Default

What about the transmission? Any work required there with such significant upgrades in power? Clutch? Flywheel? This has been an incredibly enjoyable build to follow, thanks for all the hard work
DRayKS2011STi is offline   Reply With Quote
Old 04-22-2011, 01:11 PM   #340
AMS
Former Vendor
 
Member#: 27854
Join Date: Oct 2002
Chapter/Region: MWSOC
Location: West Chicago, IL
Vehicle:
STI, WRX, GTR, EVO,
BMW, Porsche, + More!

Default

Quote:
Originally Posted by [email protected] View Post
[font="Franklin Gothic Medium"]Ok, the moment you've all been waiting for. Before reviewing the dynos I would like to review my testing methodology so that everyone is on the same page with respect to the gains achieved.

At Forged Performance, we take delta testing very seriously. I personally handle all aspects of the process to ensure a true and accurate comparison. Results can easily, yet often, become unintentionally skewed in either direction. But our objective is to give you all a true no-BS assessment of any part that we test.

That said, here is our testing methodology.

1) E85 Fuel and Stock Engine (Baseline was 196whp on our dyno)
2) Boost pressure reduced to 23psi to insure a very stable AF ratio while not overwhelming our single fuel pump.
3) Same day test 6 hours apart and vehicle was not unstrapped or moved from the dyno. We had to do quite a bit of modification to make this prototype fit, but of course production versions will be bolt on like all AMS products.
4) Ambient temp was within 3 degrees F variation in our shop, through the dyno testing process.
5) Ramp rate (load on the rollers) was reduced to 140 in order to reduce the effects of heat soak, which can mislead the results.
4) Dyno Fan running for all runs.
5) 2 second "dwell" or hold time before releasing the dyno. For reference, the dwell time can alter the boost ramp up as it pre-heats the turbo.
6) The lowest and highest dyno numbers are rejected for both plenums as well as any unusually high or low numbers.
7) AF and boost was equalized within .2 psi and .2 AF ratio points for a true apples to apples comparison of the gains. Boost curve is posted for reference so there is no dispute on boost levels run.

That said, the results were outstanding at such low boost pressure. We achieved a peak of 20whp and 28lb/ft trq. More impressively, there was virtually no loss of power or trq anywhere on the curve, and many areas showed gains of 30whp and 40lb/ft! So in addition to a notable peak power improvement, we saw a tremendous improvement in area under the curve throughout the power band.

So far, we are very pleased with the AMS Protoype STi plenum. We feel the gains will be even more impressive as we raise the boost further after our FP S2 stroker race engine goes in. We will be working with AMS closely on some additional changes and modifications to make this plenum the best out there.

And the best part......we have a video coming soon!

Great test guys, thanks for being so thorough!
AMS is offline   Reply With Quote
Old 04-22-2011, 01:21 PM   #341
Kontankerous
Scooby Newbie
 
Member#: 257551
Join Date: Sep 2010
Chapter/Region: South East
Location: LaGrange, GA
Vehicle:
2011 WRX
Satin White Pearl

Default

Good lord this is HOT!
Kontankerous is offline   Reply With Quote
Old 04-22-2011, 01:26 PM   #342
Scooby Newbie
 
Member#: 227025
Join Date: Oct 2009
Location: Marietta, GA
Vehicle:
2011 STI/GT-R/GT3
White

Default

Quote:
Originally Posted by DRayKS2011STi View Post
What about the transmission? Any work required there with such significant upgrades in power? Clutch? Flywheel? This has been an incredibly enjoyable build to follow, thanks for all the hard work
The transmission internally is all stock, and we don't plan to do much in the way of upgrading it. The stock 6 speed is pretty stout from the factory. The clutch is an OS Giken Twin Plate. It's a dream to drive, and can hold 700hp and probably more. We'll be testing the limits of it soon enough.
Sharif@Forged is offline   Reply With Quote
Old 04-22-2011, 08:18 PM   #343
EOD814
Scooby Newbie
 
Member#: 251027
Join Date: Jul 2010
Chapter/Region: MAIC
Location: Newark, Delaware
Vehicle:
2010 WRX (DECEASED)
2011 OBP STi Sedan

Default

Okay I've had enough I'm packing up the STi and moving to Georgia.
EOD814 is offline   Reply With Quote
Old 04-22-2011, 08:35 PM   #344
betterthansx
Scooby Specialist
 
Member#: 259103
Join Date: Sep 2010
Chapter/Region: E. Canada
Location: Central Ontario
Vehicle:
07' Mazdaspeed3
Cosmic Blue

Default

Quote:
Originally Posted by [email protected]

The transmission internally is all stock, and we don't plan to do much in the way of upgrading it. The stock 6 speed is pretty stout from the factory. The clutch is an OS Giken Twin Plate. It's a dream to drive, and can hold 700hp and probably more. We'll be testing the limits of it soon enough.
I am curious...how much would this cost for me if I wanted to do this? PM me if you don't want to put it on here. I am really curious lol I want the AMS kit sooooo bad.
betterthansx is offline   Reply With Quote
Old 04-24-2011, 12:05 AM   #345
Scooby Newbie
 
Member#: 227025
Join Date: Oct 2009
Location: Marietta, GA
Vehicle:
2011 STI/GT-R/GT3
White

Default

Quote:
Originally Posted by EOD814 View Post
Okay I've had enough I'm packing up the STi and moving to Georgia.
There is plenty of room for you here.

Quote:
Originally Posted by betterthansx View Post
I am curious...how much would this cost for me if I wanted to do this? PM me if you don't want to put it on here. I am really curious lol I want the AMS kit sooooo bad.
Just the turbo kit, or the whole build?

The 750R and 900x kits are both $3890. The 950r kit on our STi is a bit more at $4450. Worth every penny.

PM me if you'd like more specific pricing or have questions about supporting mods and packages.
Sharif@Forged is offline   Reply With Quote
Old 04-24-2011, 12:29 AM   #346
Scooby Newbie
 
Member#: 227025
Join Date: Oct 2009
Location: Marietta, GA
Vehicle:
2011 STI/GT-R/GT3
White

Default

Sharif@Forged is offline   Reply With Quote
Old 04-24-2011, 01:28 AM   #347
Rapier46
Scooby Newbie
 
Member#: 277987
Join Date: Mar 2011
Chapter/Region: W. Canada
Location: Calgary
Default

looks and sounds great. looks like a really fun car.
Rapier46 is offline   Reply With Quote
Old 04-24-2011, 07:06 AM   #348
jockeygolfs
Scooby Specialist
 
Member#: 260868
Join Date: Oct 2010
Chapter/Region: South East
Location: Lake Worth, Florida
Vehicle:
2011 STI
White

Default

Quote:
Originally Posted by Forged Performance
Ok, We are back from our vacation and back to work. We are getting very close. Here are a couple of pictures of how she is sitting and the fuel mods we are running now from Deatschwerks. We are very excited to see how well the 1300cc injectors work with their new Deatschwerks 300lph fuel pump.

More updates to come shortly!

Best regards,

Tray
What was the fitment like for the fuel pump? Did you guys have to mod the pump housing and fuel pump in order to get it to fit like people have done to the walbro?
jockeygolfs is offline   Reply With Quote
Old 04-24-2011, 11:20 AM   #349
scotheocelot
Scooby Newbie
 
Member#: 254768
Join Date: Aug 2010
Chapter/Region: TXIC
Vehicle:
2011 STi Sedan
SWP

Default

Quote:
Originally Posted by jockeygolfs View Post
What was the fitment like for the fuel pump? Did you guys have to mod the pump housing and fuel pump in order to get it to fit like people have done to the walbro?
Yes the current DW pump will still need a little modification in order to fit because the STI, GTR and a few others are utilizing smaller "stubby" pumps. Someday I hope there will be a direct replacement to our current pumps
scotheocelot is offline   Reply With Quote
Old 04-24-2011, 07:54 PM   #350
mtbski123
Scooby Newbie
 
Member#: 280876
Join Date: Apr 2011
Chapter/Region: NESIC
Location: Windham NY
Vehicle:
2008 Impreza Outback
Obsidian Black

Default

Thats a good looking car.
mtbski123 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 it fit: 2011 STi Sedan exhaust on 2010 WRX Sedan btr22 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 41 02-07-2016 10:44 AM
new with a question about 2011 STI sedan vs. previous STI sedans tommygsubie Newbies & FAQs 37 11-02-2010 12:16 PM
2011 STi Sedan at NY Auto Show Interior Flair Texas Impreza Club Forum -- TXIC 54 04-05-2010 07:31 PM
2011 STi sedan remotehuman New England Impreza Club Forum -- NESIC 55 04-04-2010 10:48 PM

All times are GMT -4. The time now is 02:26 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.