552whp @7psi - Lexus ISF / IS-F / LFA / LF-A Forum
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post #1 of 21 Old 10-20-2009, 01:52 AM Thread Starter
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552whp @7psi

The IS F went back on the dyno today and things went very well! We turned the boost up to 7psi with the new injectors and with a few other changes we were able to conservatively make 552whp. We made a total of 40 runs in 4th gear because 6th just takes to long to pull to red line. As you can see in the charts we were able to get the air fuel ratio pretty stable and the stock ecu did not change very much throughout the day. It was a challenge at first to get the ecu to let us do what we wanted but we found the right combo and are extremely confident in the tune! We are planning on checking the tune after the (200 mile) barrier to see if it has changed at all. Here are the dyno charts, I will post a video in the next few days!



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post #2 of 21 Old 10-20-2009, 02:07 AM
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mmmmmm tasty

Respect a man's car, the man respects you.
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post #3 of 21 Old 10-20-2009, 03:19 AM
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WOW that is so awesome... Congrats!

Nice AF!
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post #4 of 21 Old 10-20-2009, 03:53 AM
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Is that from the single turbo setup?
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post #5 of 21 Old 10-20-2009, 04:39 AM Thread Starter
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Originally Posted by ISF500 View Post
Is that from the single turbo setup?
No that was a twin turbo setup. We are expecting the same if not better results with our single turbo setup. The single turbo should make the same power but spool much faster!
post #6 of 21 Old 10-20-2009, 07:52 AM
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Originally Posted by [email protected] View Post
No that was a twin turbo setup. We are expecting the same if not better results with our single turbo setup. The single turbo should make the same power but spool much faster!


Congrats on the numbers!

This setup is the Artisan right?

Did you say your single kit will mount in the engine bay?
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post #7 of 21 Old 10-20-2009, 08:13 AM Thread Starter
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Congrats on the numbers!

This setup is the Artisan right?

Did you say your single kit will mount in the engine bay?
You are correct. Our kit will be mounted in the engine bay, which should result in faster spool and a better performing kit over all. Our plan is to try not to use methonal, but if we have too then it also will be mounted at the front of the car. The air fuel ratio in this graph overall is very good! The amazing part is that we actually had good control of the ecu. I am still in the process of figureing out a way that we can use the direct injection signals to give us even MORE control of the fuel! For the power we are at now I can say that this is most likely the best tune on a forced induction IS F yet.
post #8 of 21 Old 10-20-2009, 12:41 PM
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did you use the stock injectors?
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post #9 of 21 Old 10-20-2009, 01:15 PM
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Congrats Andy, now you can take it to the strip.

2008 Ultrasonic Blue IS-F
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post #10 of 21 Old 10-20-2009, 02:11 PM
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and if you do go meth please get with aquamist (industry leader) and get the best setup possible rich can do amazing things.


oh and nice numbers.

2008 IS-F
Joe-Z intake, Tom's air filter, 20% all the way around, interior LED kit, F-Sport shifter, rear roof spoiler, 5axis rims, and ISSForged black ceramic track exhuast!
2007 STi (fully built 500hp): Sold
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