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Old 07-05-2007, 11:49 PM   #1
Dyno Flash
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Default 04 STI - Perrin Gt35 Kit - Ap2 Pro Tune

Although the perrin kit does not utilize the most up to date GT35R based back housing it is very well made and I have found that the Perrin equiped cars run very smooth and drive almost stock like. Its a well enginered kit and the driveabiolity is great.

This car had the Perrin gt35 turbo kit - fmic and pipes and down pipe

The customer used a UR cold air intake kit to get the cool air

This dyno sheet represents max flow on the maf from the UR intake and just over 20 psi of boost. This is a safe and conservative pump gas set up.

If the customer wants a race map or to add alchy a larget "Big MAF" would be needed to give the ecu more headroom on the air flow sensor.

All together it was a very enjoyable and well running machine.

AP2 - continues to get better and better with each revision


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Old 07-06-2007, 12:37 AM   #2
Skully
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Looks like good numbers AL.. Keep up the good work.

-Thomas
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Old 07-06-2007, 01:11 AM   #3
All4bSpinnin
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kind of laggy... does it drop out of boost when he shifts?
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Old 07-06-2007, 01:34 AM   #4
WolfInSheepsCLothing
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i'm surprised he didn't want a race gas map, missing a great opportunity...
you posted this on the 4th why does the date on the graph say the 6th?
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Old 07-06-2007, 01:34 AM   #5
CatfaceType-R
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^^^ehh..for that amount of power...from 4000 rpm to redline, that isn't to bad at all. Especially on pump
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Old 07-06-2007, 02:41 AM   #6
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strange yesterday was the 5th?
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Old 07-06-2007, 03:30 AM   #7
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he couldnt do a race gas map until he gets a bigger MAF. the UR maf is not a "big MAF."
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Old 07-06-2007, 12:07 PM   #8
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Quote:
Originally Posted by PSM-04-STi View Post
strange yesterday was the 5th?
Strange eh ?


yes - he would need a big maf and a alchy kit to go for 500 whp on pump gas !

I love Gt35's on STI's

Al
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Old 07-06-2007, 01:01 PM   #9
03clipsegts
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Great numbers I wish I would have gotten the 35r instead of the 30r.
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Old 07-06-2007, 01:26 PM   #10
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Al, do you not use the same Protuner software for both Accessports v.1 and v.2? Or did Cobb come out with different software for ap v2?
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Old 07-06-2007, 04:10 PM   #11
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Quote:
Originally Posted by Redline927 View Post
Al, do you not use the same Protuner software for both Accessports v.1 and v.2? Or did Cobb come out with different software for ap v2?
At this time the tuning application is the same - however they keep adding more features recently

e.g.

Ability to tune to much higher boost levels with a external map sensor

Launch control

Etc.

Cobb is a first rate companies and they are continually opn top of the game with updates and world class tech support
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Old 07-06-2007, 04:11 PM   #12
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Quote:
Originally Posted by 03clipsegts View Post
Great numbers I wish I would have gotten the 35r instead of the 30r.
Seriously - IMHO the Gt30 is a waste product in this application

This actual car had the Gt30 when I first was tuning it 3 weeks ago and the results sucked so bad I suggested the customer simply plug in a GT35 which is what he did

The gt30 spools up only marginally faster but has at least 50 whp less min

Al
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Old 07-06-2007, 06:39 PM   #13
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Huh? GT30R Perrin kits make 400 to 410whp on the dyno dynamics dyno all the time. They also do that with a much wider power band. On C16 I have had them up to 480whp. I think for pump gas the 30R gets the nod. On Race gas the 35R is king. Nice tune Al.

http://forums.nasioc.com/forums/show...ht=Clark+GT30R

CLark

Last edited by AZScoobie; 07-06-2007 at 06:47 PM.
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Old 07-06-2007, 08:07 PM   #14
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Quote:
Originally Posted by AZScoobie View Post
Huh? GT30R Perrin kits make 400 to 410whp on the dyno dynamics dyno all the time. They also do that with a much wider power band. On C16 I have had them up to 480whp. I think for pump gas the 30R gets the nod. On Race gas the 35R is king. Nice tune Al.

http://forums.nasioc.com/forums/show...ht=Clark+GT30R

CLark
I disagree - I would not waste my time with a Gt30 - the Gt35 is my turbo of choice on a 2.5 L

It is silly to compare individual cars with various mods - the only way to reach a meaningful comparision is on the same car - same dyno - same boost - samt tuning style etc

Al
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Old 07-07-2007, 03:23 AM   #15
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^That's true, but when you've tuned probably thousands of subarus liek clark has using both GT30R's and GT35R's on the 2.5L you dont need a dyno to compare them. I'm sure he knows, as you do, that a 30R will make within 20hp of a gt35r on pump gas usually but have a much nicer powerband, IMO that would make it superior using pump gas. Race gas obviously the extra lag you have with the 35r is worth the 80+hp you will get..
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Old 07-07-2007, 10:12 AM   #16
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Quote:
Originally Posted by Dyno Flash View Post
It is silly to compare individual cars with various mods - the only way to reach a meaningful comparision is on the same car - same dyno - same boost - samt tuning style etc

Al
I agree with the sentiment here. But I will also mention to both of you that there is no way to compare the drivers/owners of the cars. Both turbos offer certain pros and cons compared to each other, no matter how slight or how dramatic, that some people want or simply can't live with. To each their own in this case as having choices is a win/win situation for us Subie owners.

offset
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Old 07-07-2007, 03:09 PM   #17
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Well put.
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Old 07-07-2007, 03:41 PM   #18
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Quote:
Originally Posted by offset View Post
I agree with the sentiment here. But I will also mention to both of you that there is no way to compare the drivers/owners of the cars. Both turbos offer certain pros and cons compared to each other, no matter how slight or how dramatic, that some people want or simply can't live with. To each their own in this case as having choices is a win/win situation for us Subie owners.

offset

My point is that for those customers inclined to get a GT30 - a FP green will spool up faster and make almost just abou the same power (espscially with a ewg)

On a 2.5 L the Gt35 makes a lot more sense to me - expecially if you intend to run meth injection or a secondary race map

Al
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Old 07-07-2007, 07:20 PM   #19
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Quote:
Originally Posted by Dyno Flash View Post
My point is that for those customers inclined to get a GT30 - a FP green will spool up faster and make almost just abou the same power (espscially with a ewg)

On a 2.5 L the Gt35 makes a lot more sense to me - expecially if you intend to run meth injection or a secondary race map

Al
any disadvantages to running a ewg on the green on newer STI's?
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Old 07-07-2007, 09:51 PM   #20
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Quote:
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any disadvantages to running a ewg on the green on newer STI's?
Cost. That's it IMO.

offset
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Old 07-08-2007, 03:06 AM   #21
STi_Guy04
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Quote:
Originally Posted by Dyno Flash View Post
My point is that for those customers inclined to get a GT30 - a FP green will spool up faster and make almost just abou the same power (espscially with a ewg)

On a 2.5 L the Gt35 makes a lot more sense to me - expecially if you intend to run meth injection or a secondary race map

Al
Yeah I must say the 35r is Nice, I just got dyno tuned today and made 480whp on C16 27psi On a Mustang Dyno. My only problem is that it falls out of boost on the Road.. Oh and take in mind that IN Arizona Today it was 116 Degrees Outside today

And my buddy with his 30R who made 465whp with 110 and 50/50 meth water injection pulls me all over the freeway, because with my 35R, I fall out of boost Between Gears. So i am thinking about a Twin scroll 35R or a LArge 30R
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Old 07-08-2007, 06:07 AM   #22
STimo
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^Id go get that 35R retuned cuz the freeway above ~95mph is where you should really start pulling wth that 35R.. Id keep the 35R if i were you unless you plan on running pump gas all the time, which in your case and tune now i doubt..
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Old 07-08-2007, 06:49 AM   #23
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Quote:
Originally Posted by STimo View Post
^Id go get that 35R retuned cuz the freeway above ~95mph is where you should really start pulling wth that 35R.. Id keep the 35R if i were you unless you plan on running pump gas all the time, which in your case and tune now i doubt..
but there is somthing to be said for 9.0 compression and a 30r on meth and 110. believe me very fast spool and great top end will get you places. i will post plots a vids tomorrow. It might just change a few minds on nasioc. I will never go bigger and love the quick respnse of the 30R
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Old 07-09-2007, 03:28 AM   #24
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I believe cars running such large turbos like 35r and such, would really benefit from higher compression and Serious head-work, with the right selection of parts i think both turbos could be equally as fun on the street, its just how much money do you wana spend?

I`ll probably be looking into pulling the motor and going to a new compression ratio, hey Stu, see if you can get a overlay of our race-gas tunes, I think my plots are still on the Pc at the shop though
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Old 07-09-2007, 07:01 AM   #25
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35R on a built engine (cosworth heads) this is on 93 octane...


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