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Old 04-14-2008, 08:52 PM   #45
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Member Sales Rating: (19)
Member#: 91925
Join Date: Jul 2005
Chapter/Region: TXIC
Location: Flower Mound, TX
2015 WRX STi

Default TGV deletes/Phenolic Spacer results

I figured I would post up my tuning results before and after their product.

Background on the car

06 STI w/ FP Green 2.4",DW 850's, EL Perrin header, Intake, intercooler, Cobb TBE, SMC alchy kit 100% alcohol on 91oct.

Car had a custom tune from another shop, but the owner felt there was some power left on the table so he brought it down to get re-tuned and to get the TGV deletes and phenolic spacers installed.

First off, the products were well machined and included everything we need to do the install - nicely packaged as well.

We started by taking a baseline from his current tune.

We then unmarried the accessport and started from scratch w/ open source tools. Tuned the car for about an hour and averaged ~350hp.. here is one of the last pulls but we were getting some heat soak by this point.

Next, we headed back to the garage and tore the car down to the heads and reassembled everything with our new shiny TGV deletes and spacers.
After a small break we began tuning again, about an hour, and a few more psi later we managed to do this:

I played around with it for about another hour while a nice cold front blew though and dropped the temps outside into the low 40's.

We then made this pull

All of these pulls are road dyno pulls, utilizing the same smoothing factor and no correction used.

The next day we made consecutive passes to ensure the safety and consistency of the tune. Even after significant heat and multiple passes, our number was dead on averaging ~365 in about 70 degree temps.

I have TGV deletes on my car as well, but I had not had a chance to perform somewhat of a controlled test. The largest benefit I could feel was consistency even under extreme heat, much higher torque, and smoothness. The turbo was kind of choppy at high boost prior to the TGV deletes. Obviously allot of the total gain was made from additional boost, but there is no denying that the TGV deletes helped the car utilize the boost to its full potential.

Anyhow, hope ya'll enjoyed the review.

Thanks, Keith @ awdtuning.
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Last edited by TheShad0w; 04-14-2008 at 09:20 PM.
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