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Old 12-19-2007, 04:24 PM   #1
PERRINJeff
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Default PERRIN Tunes 08 STI with AccessPORT!!!

Here is a little teaser for you guys and gals.
This is just the start of things to come, lots more things to discover with 08 STI and the ECU. Not to mention the tuning software.



This is a bone stock STI, no mods at all! Later today, we should have it stage 1 all done and ready for some road testing. We will keep this thread updated with more stage 1 results as the day goes by.
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Old 12-19-2007, 04:27 PM   #2
widespread panic
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Awesome! What is boost & afr's before tune & after the tune? Thanks!!!
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Old 12-19-2007, 04:30 PM   #3
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More info to follow soon. Things are safe, which is very important! When its all done, we will divulge the full (maybe not everything) results, and how we got there. What i can say is the ECU is tuned crappy! We created a map, with a few smoothing changes, and some other tricks, and we gained about 5HP, but every run was the same. Not the 15WHP swings.

More to come!
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Old 12-19-2007, 04:33 PM   #4
widespread panic
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I bet the stock tune looks scary.....looks scary now but in a good way!
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Old 12-19-2007, 04:34 PM   #5
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nice jeff,you think that abs pump will get in the way of a rotated set up..

dave/mspt
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Old 12-19-2007, 04:35 PM   #6
PERRINJeff
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The red line on the graph is the stock tune, but the other 10 runs were all over the place. That best represented the stock mapping.
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Old 12-19-2007, 04:37 PM   #7
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Quote:
Originally Posted by M.S.P.T View Post
nice jeff,you think that abs pump will get in the way of a rotated set up..

dave/mspt


It will be run just like this. But the turbo kit is a little ways away.
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Old 12-19-2007, 04:44 PM   #8
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Wow, looks nice guys, thank you!
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Old 12-19-2007, 05:15 PM   #9
`04AlpineWhite
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Those are some impressive gains for just tuning. Is the turbo a VF43?
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Old 12-19-2007, 05:18 PM   #10
Parker @ COBB
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I'm very curious to see what you guys end up with. Keep up the good work!!!

Regards, Parker
cobbtuning.com
blogs.cobbtuning.com

Last edited by Parker @ COBB; 12-19-2007 at 05:55 PM.
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Old 12-19-2007, 05:18 PM   #11
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WOW Jeff! I am home on paternity leave, you go out buy a new car, get the AP, and a fresh tune! I need to get back to the office!

Looking great!

Adam
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Old 12-19-2007, 05:25 PM   #12
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wow impressive gains for not a single mod on the car!!! cant wait to see what this thing will do with the 35r kit on it, or just stage 2 for that matter.

Jeff, are you going to be reversing the IM like some other guys have done on the new wrx's with your sti? just curious how much that mod really makes a difference on spool characteristics/ power etc.
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Old 12-19-2007, 05:35 PM   #13
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when will we be able to buy the stage 1 map?
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Old 12-19-2007, 05:40 PM   #14
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Quote:
Originally Posted by spoolindc2 View Post
wow impressive gains for not a single mod on the car!!! cant wait to see what this thing will do with the 35r kit on it, or just stage 2 for that matter.

Jeff, are you going to be reversing the IM like some other guys have done on the new wrx's with your sti? just curious how much that mod really makes a difference on spool characteristics/ power etc.
Stage 2 should be done tonight or tomorrow!

The intake manifold will stay right where it is. While that is a cool thing to do, it not something we can really sell. What i mean is, we are going to do things to the cars that anyone can do. Just like the 08 WRX we did. To me, on a new car, it is important to show off what can be done with keeping things reasonable.

Opposite of this theory is the H6 Project, it worked, great, and it was very cool, but not very feasible for everyone to do. Its more fun to build something that is attainable. What i have planned for the STI (besides the bolt on stuff, will be something anyone can do.

Fun things to come!
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Old 12-19-2007, 05:42 PM   #15
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I am very confused. I think the software has an error in the math.

266.5 - 225.2 = 41.3 increase in whp, but it says 34.6.

The torque is right though.

Very nice none the less.
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Old 12-19-2007, 05:43 PM   #16
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Quote:
Originally Posted by oh8STi View Post
when will we be able to buy the stage 1 map?
Next week i think?? Or 08 AP's should be here just after Christmas.
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Old 12-19-2007, 06:06 PM   #17
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Jeff, how is this ECU compared to the 2007 STi's. How many timing tables?? I know you donít want to disclose too much info, I am wondering is tuning the 08's is going to be challenging????

Thanks
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Old 12-19-2007, 06:32 PM   #18
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Looks smoother. that's nice for people.
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Old 12-19-2007, 07:11 PM   #19
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Did you mess with the AVCS intake/exhaust on this tune?
Can't wait to hear the details!
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Old 12-19-2007, 07:27 PM   #20
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Quote:
Originally Posted by DoctorNick View Post
Did you mess with the AVCS intake/exhaust on this tune?
Can't wait to hear the details!
+1
Cant wait to see what the 08 is capable of.
Congratulations on the new found power.
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Old 12-19-2007, 07:27 PM   #21
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Quote:
Originally Posted by RedHotLama View Post
I am very confused. I think the software has an error in the math.

266.5 - 225.2 = 41.3 increase in whp, but it says 34.6.

The torque is right though.

Very nice none the less.
the graph looks to be flywheel hp
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Old 12-19-2007, 07:28 PM   #22
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Quote:
Originally Posted by PERRINJeff View Post


It will be run just like this. But the turbo kit is a little ways away.

ahhh the coolant tank---put me down for that kit but my turbo will be a little different
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Old 12-19-2007, 08:39 PM   #23
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Quote:
Originally Posted by BBBsti LTD View Post
Jeff, how is this ECU compared to the 2007 STi's. How many timing tables?? I know you donít want to disclose too much info, I am wondering is tuning the 08's is going to be challenging????
It is similar in the sense it's not like the 2004-2006 STi ECUs. The 2007 STi has thrown a few tuners for a loop when you assume they will function exactly like a 2004-2006 STi ECU. If you do that, you'll get frustrated pretty quickly.

That being said, the 2008 STi ECU isn't the same as the 2007. For one, having SI-Drive means it's based on a lot of new and different torque demand specific logic for boost control and other functions. I won't go so far as to say it's radically different (IMO), but it is based on a new OS revision that's several versions newer than what was used on the 2007 STi. In some cases the number of tables stayed the same, others reduced and others increased. The key though is the logic behind how the tables are utilized and when...

Will it be hard? At first there will be a learning curve but I don't think most tuners will have much difficulty. PERRIN is obviously making pretty great progress already, which is very encouraging! Great work, Jeff!

Cheers,
Trey @ COBB
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Old 12-19-2007, 09:11 PM   #24
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Anyone else notice that it looks like they restored the 7K redline? Very nice.
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Old 12-19-2007, 10:32 PM   #25
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so much the same as a protuned 07 then ?
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