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Old 02-03-2014, 04:34 PM   #1
yamahaSHO
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Member#: 73932
Join Date: Nov 2004
Chapter/Region: MWSOC
Location: Nebraska
Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

Default 2005 STi - 20G + E85

Event: Road Dyno
Location: Somewhere in western Iowa on a flat road.
Ambient Temp: 90F+
Elevation: 950+ ASL
Weather: Summer - hot
Track and Conditions: N/A
Tires: Dunlop Direzza Star Spec 235/45/17

Car: 2005 STi
Tuner: jaz TUNING (Me)
Dyno Info: Virtual Dyno
Transmission: Factory 6spd
Gear: 4th (me as the passenger)
Peak HP at RPM: 429 HP @ 5720 RPM
Peak Torque at RPM: 430 TQ @ 4481 RPM (Stock 34k mile clutch slipping on pull)
Baseline hp/tq for a stock on same dyno: Do not know.
Target Boost: 23 PSI
Target AFR: 11.5 gas-referenced
Fuel: E85
Engine/Power Modifications:
KStech 73mm CAI, Perrin inlet, 20G/TD05/8cm, ETS TMIC, Invidia ELH, Grimmspeed UP w/ TiAL 38mm EWG, Cobb cat-less TBE, T1 top feed w/ID1000's (50 PSI base pressure), Walbro 400 E85 (hardwired), Aermotive AFPR, Crawford AOS, hybrid boost control (Grimmspeed EBCS/MBC) and Cobb APv2.

Suspension Modifications: KWv1's, replaced all bushings, Whiteline bumpsteer/roll center correction, Cobb sway bars w/ adjustable rear mount, Oswald Triangle Brace, eBay H-brace, Oswald F/R bumper beams, and MSI trailing arms (1" correction).

Other Modifications: Debadged, front lip,...



Spool vs my buddies VF39 (3rd gear for both w/ all mods between the two the same other than the turbo)



It started pushing coolant last year, so I just started the rebuild with a brand new OEM short block with Manley A/B graded pistons.

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Last edited by yamahaSHO; 09-22-2014 at 11:13 PM.
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Old 02-03-2014, 05:02 PM   #2
bluemax189
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20g

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full boost the same as a vf39?? crazy!!!! any logs of the pull since you did the tuning yourself? Great numbers and great power!
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Old 02-03-2014, 06:24 PM   #3
rexworx
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very nice! who make the turbo? Have you run it IWG? Or you have run it iwg did you experience boost creep?
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Old 02-03-2014, 08:13 PM   #4
yamahaSHO
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2005 STi - E85 20G'd
2004 S2000 - E85

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Quote:
Originally Posted by bluemax189 View Post
full boost the same as a vf39?? crazy!!!! any logs of the pull since you did the tuning yourself? Great numbers and great power!
One of my goals with this car was to keep the fun spool it had when I was stage 2. I thought I would have good spool, but didn't think it would be on par with a VF39.

I have lots of logs. I did graph out the pull above where the clutch was slipping. I planned on flattening the timing out (more peak tq timing), but once the clutch started slipping, I just stopped there.



The VF39 car my comparison came from is here: http://forums.nasioc.com/forums/show....php?t=2552252

Part of me wants more power when I get the new motor in... But then the other part of me doesn't want to work on it anymore.


Quote:
Originally Posted by rexworx View Post
very nice! who make the turbo? Have you run it IWG? Or you have run it iwg did you experience boost creep?
It is a Blouch turbo. I also had the hot side coated with SwainTech and will eventually put a turbo blanket on it as well to help with TMIC heat soak. I never ran this with an IWG. While I had the hot side off, I just had the flapper welded.





The rest of the engine compartment.

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Old 02-03-2014, 09:35 PM   #5
ballzdeep
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I dig
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Old 02-03-2014, 11:43 PM   #6
Blacksheep6
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07 STi
WRB

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Solid no frills build! Have fun!
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Old 02-04-2014, 12:32 AM   #7
yamahaSHO
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Join Date: Nov 2004
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2005 STi - E85 20G'd
2004 S2000 - E85

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Quote:
Originally Posted by Blacksheep6 View Post
Solid no frills build! Have fun!
Haha, it's definitely nothing that stands out. The Cobb TBE and ELH make it extremely quiet... Up until the wastegate opens up.

And just to compare to my S2000 (I/H/E, test pipe, E85 w/ STi injectors, and AEM EMS v2).


Last edited by yamahaSHO; 02-04-2014 at 10:11 AM.
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Old 02-04-2014, 03:20 PM   #8
mattyboost
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great numbers
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Old 02-04-2014, 06:12 PM   #9
PromDate
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I love that you kept the top mount!!
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Old 02-05-2014, 12:49 PM   #10
yamahaSHO
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2004 S2000 - E85

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Quote:
Originally Posted by PromDate View Post
I love that you kept the top mount!!
That's one of the things I didn't want to let go of with trying to keep the quick power delivery. No records being broken here, just something less boring than stock power.
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Old 02-09-2014, 09:52 PM   #11
PromDate
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Quote:
Originally Posted by yamahaSHO View Post
That's one of the things I didn't want to let go of with trying to keep the quick power delivery. No records being broken here, just something less boring than stock power.
Agreed, I want to put 400 to the wheels with the top mount, I might get the cryocooler thing that sprays thee intercooler to keep it colder!
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Old 02-20-2014, 04:12 PM   #12
yamahaSHO
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Join Date: Nov 2004
Chapter/Region: MWSOC
Location: Nebraska
Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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Quote:
Originally Posted by PromDate View Post
Agreed, I want to put 400 to the wheels with the top mount, I might get the cryocooler thing that sprays thee intercooler to keep it colder!
I have considered the idea of wiring up my TMIC sprayer to a boost switch. I figure that would be one way to put it to use as I don't use it any other time. I think the only time I ever used it was when I was in the staging lanes at the drag strip... Which I've only made two trips to back when I bought the car and it was Cobb stage 2.
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Old 07-30-2014, 12:44 PM   #13
yamahaSHO
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Join Date: Nov 2004
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2005 STi - E85 20G'd
2004 S2000 - E85

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I just got my new motor installed and running with just over 300 miles on it now. I look forward to seeing what I can do with it once I've got enough miles on it. I ended up with a new short block and swapped out the pistons for the Manley graded pistons. They're fairly quiet for the most part with just a faint piston slap at operating temperature. It's been rather cool here and I haven't been getting on it and with E85, they may not be expanding quite as much as they're meant to.

Nothing too special on this rebuild. Basically it is a stock rebuild with forged pistons and head studs... and a few other minor things.











Cleaned things up a little:



And in running status and a wash.

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Old 07-30-2014, 01:07 PM   #14
rexworx
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Nice, This is with a standard compressor wheel? It doesnt have a billet wheel correct?
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Old 07-30-2014, 01:08 PM   #15
yamahaSHO
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Join Date: Nov 2004
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Location: Nebraska
Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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Standard wheel and journal bearing.
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Old 07-31-2014, 01:57 PM   #16
PhillyPhan90
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Crystal Gray Metallic

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Really like how clean this car is. The engine bay is incredible, and that motor shine! How much did the motor build cost you? I've got a few options I'm considering, and just doing forged pistons/rods is one route.
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Old 07-31-2014, 02:48 PM   #17
yamahaSHO
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Join Date: Nov 2004
Chapter/Region: MWSOC
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Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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Thanks. With all the little upgrades and replacement parts (since it was apart) and a clutch, and factoring I sold my short block for $1k, I want to say I have about $2,500 in the build. I don't like that I have a 704 block now, but it's a chance I took for convenience.
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Old 07-31-2014, 05:25 PM   #18
PhillyPhan90
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That's not a bad ending total at all. Though the 704 is kind of risky. I just researched them, and AWDtuning has some great deals on built shortblocks. Their stage 2 is the one I'm considering rather than getting my current block redone; I like the thought of going with new case halves and heat treated crank. How is E85 treating you? Any negatives you've experienced?
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Old 08-01-2014, 02:24 AM   #19
yamahaSHO
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Join Date: Nov 2004
Chapter/Region: MWSOC
Location: Nebraska
Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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No complaints about E85. If I go on a long trip, I may have to fill up a reserve can of fuel in case I can't find an E85 station. I would also bring my laptop/AP as well. My S2000 is using a set of WRX/STi injectors on E85. Not much gain being NA, but it keeps the motor cool on track.

Oh, it smells good too.
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Old 08-03-2014, 12:08 AM   #20
robbieshonda
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Interlagos Blue 551/441

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Nice setup! looks like alot of fun!
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Old 08-06-2014, 11:38 AM   #21
yamahaSHO
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Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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Thanks. Now I just need to muffle or reroute my EWG and I'll be set. Currently, that's about the only thing I do not like about the car. It's tame/quiet under normal driving, but once it starts building boots, it's obnoxious.
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Old 09-22-2014, 12:25 PM   #22
yamahaSHO
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Location: Nebraska
Vehicle:
2005 STi - E85 20G'd
2004 S2000 - E85

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I got an itch this past Friday and decided to take the car to the drag strip after a full day on the road course with my S2000... I guess I needed some torque in my life.

I'm reminded why I don't drag race... I suck at it. Even as the car sat, I should have gotten it into the 7's in the 1/8th mile, but meh. I was and still am on my break-in tune, which consisted of me turning the boost down to 18 PSI (from 23) and using the AP to remove 3 degrees of timing, globally. I also found on my most recent map, I hadn't changed the throttle to keep it from closing as I neared redline. Coming from the DBC and soft clutch S2000, I had a difficult time banging gears and coming back onto the throttle in the STi, which resulted in no boost coming into the next gear.

With about 1,200 miles on the new motor as of yesterday, I changed over from Rotella T to Motul 300v (5w40). I've got several track and AutoX events lined up with my S2000, so I am hoping to be able to get some time to go through the car (boost leak test and such), and turn up the power and take it back.

Anyway... I brought my GoPro, but didn't think my times were worth setting it up. However, a buddy I ended up running against had a camera in his C5 Z06 and his friends also took video from the stands. It was a fairly warm and very humid night. This run is one of my worst times of the night, with my best being an 8.0 @ 88mph.

This was a pretty fun run. The car in the left lane was a purpose built and tub'd drag car.


https://www.youtube.com/watch?v=KOvhdgt7YBo

https://www.youtube.com/watch?v=vsPVZaJRfwk

Last edited by yamahaSHO; 09-22-2014 at 12:45 PM.
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Old 09-22-2014, 12:46 PM   #23
WRXt4cy
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02 v8 Spec C E85

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Not bad for being down on power on a humid night.

Do you ever use flat foot shifting? I like it a lot for drag racing because no matter how quick I try to shift (with lifting) I fall father out of boost than if I even shift slow with FFS since it keeps the throttle open.

Also, 1200 miles?! Turn it up.
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Old 09-22-2014, 01:42 PM   #24
yamahaSHO
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2004 S2000 - E85

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I would have been happy had I broken into the 7's, but I went there with the expectation of, "I have no idea what it will run". Just as soon as I got there and parked the car to remove my loose crap, I had a guy ask to run me in his R32. Apparently my car looks a little too stock and is extremely quiet when the EWG is closed (which is getting rerouted - can't stand the noise). I ran him twice for fun and we ended up chatting a good bit through the night. Even Tech didn't bother looking at my car too much... Just assumed it was stock and didn't ask to see my helmet.

I've never used FFS... I was hoping CJ's skills would rub off on me, but apparently that is not the case. I may give it a try sometime. My buddy Chris has been telling me to do it for years. Where are you setting your FFS in relation to the RPM you drop down going into the next gear?

A lot of those miles have been me just going out and finding the few curvy roads around the boarder in Iowa. I've just been happy to have it to drive... It's still pretty comfortable and smooth/quiet (aside from the car not coming with sound deadening). I might turn it up after the weekend and maybe make another trip to the drag strip before winter ruins things. I'm going to run it up to where it was before I started pushing coolant. It's a fun street car and should make for some good fall drives through the twisties.
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Old 09-22-2014, 02:14 PM   #25
WRXt4cy
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02 v8 Spec C E85

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Quote:
Originally Posted by yamahaSHO View Post
I would have been happy had I broken into the 7's, but I went there with the expectation of, "I have no idea what it will run". Just as soon as I got there and parked the car to remove my loose crap, I had a guy ask to run me in his R32. Apparently my car looks a little too stock and is extremely quiet when the EWG is closed (which is getting rerouted - can't stand the noise). I ran him twice for fun and we ended up chatting a good bit through the night. Even Tech didn't bother looking at my car too much... Just assumed it was stock and didn't ask to see my helmet.

I've never used FFS... I was hoping CJ's skills would rub off on me, but apparently that is not the case. I may give it a try sometime. My buddy Chris has been telling me to do it for years. Where are you setting your FFS in relation to the RPM you drop down going into the next gear?

A lot of those miles have been me just going out and finding the few curvy roads around the boarder in Iowa. I've just been happy to have it to drive... It's still pretty comfortable and smooth/quiet (aside from the car not coming with sound deadening). I might turn it up after the weekend and maybe make another trip to the drag strip before winter ruins things. I'm going to run it up to where it was before I started pushing coolant. It's a fun street car and should make for some good fall drives through the twisties.
Yeah... I'm getting "used" to EWG on my car, its ridiculously loud. Its nice when you feel like making a point to another car, be it a 17 year old in dad's mustang GT or a someone talking on their cell phone and driving under the speed limit in the left lane, but when you want to get on it without scaring the hell out of people or drawing even more attention than usual, its not very good.

I don't think CJ barely even lifts lol. One of my buddies just no-lift shifts his 05 WRX. It gets the job done but its not helped keep parts of his transmission together in the past.

For a car revving near 7000-7200, 5700 rpms seem to work well. Its just simply setting this point as a new rev limiter when the throttle > 70 and the clutch is down. If you complete the shift fast, the rpms might not even drop below this point before the clutch is out and fuel is back on. If you take your time shifting (or miss a gear), and your rpms fall below 5700, fuel comes back on and cuts off/on at 5700 until the clutch is back out. I think you just want it to be somewhere right below where rpms will fall to on a shift. For a higher rev limit, a bit higher FFS threshold might be good.

If you do enable it, make sure you adjust the three boost control disable tables that kick in with the temporary fuel cut. They are thresholds that one (or maybe more) of the parameters must come down below before the ecu will resume normal boost control with your target WGDC. If you don't raise these, the ecu will disable boost control by commanding zero duty. I set the load and rpm thresholds above any normal values I'd see and set the min boost value a couple 2 - 3 psi below my expected boost at redline.

Other than that, set it up and turn it on and try a few shifts from 3rd to 4th to get the feel for it. Its an easy gear to hit and rpms aren't climbing as fast. Keep on eye on FLKC and DAM though - sometimes the ecu will pick up knock and adjust these but I normally don't see it too much on E85.

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