800 whp: VTT GC's

Oct 24, 2016
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Scottsdale, AZ
After all the manifold testing we started thinking about turning things up. Left the car on the dyno today, and did a few more runs for fun. With some input from [email protected], we tweaked Justin's tune; upped the boost a little bit, added one degree of timing up to 6K. Voila 804WHP/741WTQ DI only. We knew the turbos had it in them. Great to see it fulfilled!

Car Details:
2008 E90 6MT
Open Deck, Forged Rods / Piston
Ported head / Stock valve train
EOS V1 manifold
VTT GC Turbos
VTT Inlets / Charge pipe
VTT DCI
VTT Double Barrel Shotgun DI ONLY (PI is not even installed on the car)
Custom LPFP Consisting of VTT Bucketless in-tank feed pump, Triple Walbro LPFP with Radium Surge Tank
BMS Downpipes
AD-e Intercooler
Custom PCV System
AEM AQ-1 Data logging system
Tuning by V8Bait with some tweaks by Ken @ Wedgeperformance
100% E85

Logs here:
AEM to show true boost: http://www.datazap.me/u/vargasturbotech/vtt-gc-804whp?log=1&data=4-5
MHD for fuel etc: http://www.datazap.me/u/vargasturbotech/vtt-gc-804whp?log=0&data=3-24&zoom=33-82
804.jpg


804g.jpg
 
Last edited:
Oct 24, 2016
1,152
1,190
0
44
Scottsdale, AZ
Do you guys think DI and the ported head played a big part of being able to hit 800whp?

Well we hit 777 DI only without the ported head; so it was worth a little anyway just based on that. DI in general does help. Not sure how these numbers would compare to a standard hpfp and a bunch of PI if we kept the boost and timing the same; I'd GUESS that you'd have to run it a little richer but who knows until you actually test. DI is a beautiful thing when operating within design parameters.
 

Reaper0995

Specialist
Jan 10, 2017
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These are great numbers! Do you know what cfm your heads were able to flow after porting? Stock intake manifold?
 
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