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Registered
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40 Posts
Discussion Starter #1
Hi guys,

I am curious to know are those the right numbers that my engine should get after upgrading some parts

Garrett GT4294R>PTE 7675 GT42
HKS272>GSC S2
Stock intake manifold>Sleeper Design intake manifold
100 shot n2o

and the other specs are
BLOCK
CP Pistons .20 over, 9.0 comp
Carillo H-Beam Rods w/Carr bolts
Clevite Bearings
Titan Billet Mains
ARP Main Studs

HEAD
L19 Head Studs
GSC S2
Shimless Buckets
Ferrea Springs and Retainers
Ferrea 1mm oversized valves
Titan adjustable cam gears

ECU
ProEFI 128 FlexFuel

OS Giken Triple Plate Clutch


before upgrading

Made 890 RWHP at 30psi

after upgrading



at 38 pound of boost


should I accept those numbers for my setup or there is a mistake because i've seen cars break the 1100 easily with this turbo on boost. And I want you guys know that I am not good with engines but i feel there is something wrong if not please correct me.

Thanks
Hamad
 

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Heeb Tuner
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762 Posts
HP seems kinda low considering the tq..
 

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Premium Member
Joined
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7,065 Posts
Hi guys,

I am curious to know are those the right numbers that my engine should get after upgrading some parts

Garrett GT4294R>PTE 7675 GT42
HKS272>GSC S2
Stock intake manifold>Sleeper Design intake manifold
100 shot n2o


and the other specs are
BLOCK
CP Pistons .20 over, 9.0 comp
Carillo H-Beam Rods w/Carr bolts
Clevite Bearings
Titan Billet Mains
ARP Main Studs

HEAD
L19 Head Studs
GSC S2
Shimless Buckets
Ferrea Springs and Retainers
Ferrea 1mm oversized valves
Titan adjustable cam gears

ECU
ProEFI 128 FlexFuel

OS Giken Triple Plate Clutch


before upgrading

Made 890 RWHP at 30psi

after upgrading



at 38 pound of boost


should I accept those numbers for my setup or there is a mistake because i've seen cars break the 1100 easily with this turbo on boost. And I want you guys know that I am not good with engines but i feel there is something wrong if not please correct me.

Thanks
Hamad
Do you have any even boost numbers to compare against?

Does this dyno pull include the 100hp shot on top of the 38psi?
 

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Registered
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40 Posts
Discussion Starter #4 (Edited)
Do you have any even boost numbers to compare against?


No Actually. I bought the car with 890rwhp at 30 psi on boost as the previous owner told me and showed me and now made 995rwhp at 38psi with n2o for spool like the tuner said.

Does this dyno pull include the 100hp shot on top of the 38psi?


he said in the pull we used the 100hp shot for spool only not for power
 

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An out of line 2J
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1,273 Posts
I didn't see what fuel it was but assuming e85 based on ProEFI flex fuel. It seems relatively low for a 76 at that boost level. For comparison, I'm making 950 on my 4294 and I've seen several plots of similar 4294 making ~900 consistently. The 4294 is basically a 70mm. For the 7675, there does appear to be plots with that turbo easily making ~1000-1100. Believe BW S400 is also 76mm if your looking for additional comparisons.
 
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