High hp but low torque on stock turbo set ups? Why?
#21
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More boost will increase your torque numbers, additionally if you don't have enough ignition timing your torque may suffer since the engine will not be making optimal power. Smoother boost will also raise both torque and HP numbers.
22psi on stock solenoid with pill removed vs 25psi on AEM solenoid
22psi on stock solenoid with pill removed vs 25psi on AEM solenoid
Last edited by Mr. Evo IX; May 22, 2008 at 08:19 AM. Reason: checked logs, low psi was 22.0 and high psi was 25.3
#22
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I am in the same boat. 350whp and 309lbft on a dyno dynamics. I only run 21psi peak though. I always wondered why everyone else got so much more TQ. I always thought it was the low boost and Helix cams (awsome cams BTW) being set at -4/-1. My car is very sensitive to timing at peak TQ. I think I only have 2deg or so.
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Resurrecting this thread for some opinions:
I have a JDM 7 on a stock 9.8T running 21 psi
Mods are:
Apex'i MAF adapter + Filter
GS 3 port
Forge WGA
DC Sports DP with cat delete
Blitz Nür Spec Touring Catback exhaust
VD measured
293hp @ 6297rpm
264 lb ft @5516rpm
Doesn't that tq figure seem a bit low considering the stock wtq figure?
I have a JDM 7 on a stock 9.8T running 21 psi
Mods are:
Apex'i MAF adapter + Filter
GS 3 port
Forge WGA
DC Sports DP with cat delete
Blitz Nür Spec Touring Catback exhaust
VD measured
293hp @ 6297rpm
264 lb ft @5516rpm
Doesn't that tq figure seem a bit low considering the stock wtq figure?
#24
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I was told by a shop that their crazy TQ numbers are specfically related to the way they port their head, hence why they charged a bloated amount for their head.
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However for comparisons sake, before I installed dp and catback (my cat was gutted though) I registered 244 lb/ft tq @ 4766rpm 267hp @ 6547rpm
From all ive heard and read without seeing an actual plot, around 240-245 lb ft is stock at the wheels for 8's.
With the decat dp and blitz catback installed, after a tune I registered 264 lb/ft tq @ 5516 rpm and 293hp @ 6297rpm
A really nice impressive gain although it should be noted that ambient temps were probably a decent 5 deg C cooler for the post exhaust install run.
Now, looking at many other dyno plots on here, I see that most builds similar to mine have peak tq and peak hp figures that are closer together, mine have a gap of almost 30 pts
I'm just trying to figure out if this indicates a restriction at low rpms or something...
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