Stock Block HKS 7460GTII 91oct 23-24psi
#1
Stock Block HKS 7460GTII 91oct 23-24psi
This customers Evo IX from Canada put down some decent power on a very limited octane rating of 91oct.
full mod list:
Stock block /w 110K
HKS 7460GT2 turbo
ets manifold
maperformance test pipe
custom 3" catback with res and muffler
tomei downpipe
ets intake
3.5 inch ets intercooler
ets intercooler piping
3port
Precision 1200cc
walbro 255
Tephra v7 MAF /w ecuboost
Graph below:
full mod list:
Stock block /w 110K
HKS 7460GT2 turbo
ets manifold
maperformance test pipe
custom 3" catback with res and muffler
tomei downpipe
ets intake
3.5 inch ets intercooler
ets intercooler piping
3port
Precision 1200cc
walbro 255
Tephra v7 MAF /w ecuboost
Graph below:
#3
EvoM Community Team Leader
Im at 20psi at 3500 and 26 by 3800 and capping off at 27.5@ 4000 3rd gear street pull. E85 though 300ft above sea level.
Last edited by Biggiesacks; Aug 11, 2017 at 06:53 PM.
#6
Evolved Member
iTrader: (5)
Mine did 29psi by 3300-3350.
I did not test & try what will it push on top, but conservative tune held 26psi to redline.
This on E85.
On 91 it pulled 26psi by 3300rpm, and was tuned to taper to 22-23psi on top.
Fftec in Hayward, running the most conservative Mustang Dyno along with GST Motorsports, pushed one to 440whp, and many to 425whp.
Stock E9 does 215whp on this dyno, for comparison.
This dyno reads spot on 15% lower then DJ.
Tom had good reason to keep this car conservative, surely.
Cooke be fuel or other issues.
I did not test & try what will it push on top, but conservative tune held 26psi to redline.
This on E85.
On 91 it pulled 26psi by 3300rpm, and was tuned to taper to 22-23psi on top.
Fftec in Hayward, running the most conservative Mustang Dyno along with GST Motorsports, pushed one to 440whp, and many to 425whp.
Stock E9 does 215whp on this dyno, for comparison.
This dyno reads spot on 15% lower then DJ.
Tom had good reason to keep this car conservative, surely.
Cooke be fuel or other issues.
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#9
BB doesn't make a turbo spool faster then stock either. All BB does is make your on/off (transient response) improve.
Also pulls done in 3rd. There is no 7460 GTII on 91oct hitting 26psi by 3300RPM in 3rd gear in 70-80F temps either.
Only place I could see 91oct with a 7460GTII doing that kind of boost downlow would be Alaska.
(EDIT: I may be wrong and this car in particular I shared has the defective WG flapper issue)
Last edited by tscompusa; Aug 12, 2017 at 02:03 PM.
#13
EvoM Community Team Leader
#15
EvoM Community Team Leader
There was a combination of issues with the first gen that added together to cause the wastegate flapper to fail. They changed the metallurgy of the flapper on the revised "Kai" version. I have one of the original versions that came with the cams. So far i have not had any issues with the flapper, but I don't track it, and I check/adjust the actuator preload on occasion. Its been like 70k miles and like 6 or 7 years of Daily since I installed it.