Can I Hit 400whp on Pump gas ?

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11-05-2002, 05:40 PM

C-Murdock

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Can I Hit 400whp on Pump gas ?

After looking at all these dynos, Im getting really excited, but my goal is to get at least 400whp On 94 Octane. How many pounds of boost will I need to run to get it with all my mods, and on pump gas, im thinking 15psi ? Here are my mods :
H22A4
Port/Polished Head
Crower Turbo Cams
Crower Valvesprings
Crower Retainers
Arias 10:1 Pistons
Crower Rods
Balance and Polished Crank
Golden Eagle Sleeves
Turbonetics T3/T04E Ball Bearing Stage III Turbine, 60 Trim, .82 a/r, .60 a/r
Revhard Log Manifold
Tial 40mm
AEM Pulleys
2.5" Revhard downpipe
3" Custom Downpipe back, no cat, Apexi 3" Turbo N1 Muffler
AEM EMS
Apexi AVC-R
Spearco 24.6.5x3.5 Intercooler...

What do you guys think ?

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11-06-2002, 02:19 PM

C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

ttt

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11-06-2002, 02:22 PM

mos

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

You might need some methanol/water injection to help reach that goal.

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11-06-2002, 02:34 PM

RyanAutry

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

I honestly think you can with 94 Octane.

You have the right setup.

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11-06-2002, 02:43 PM

Boost2NA

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Re: Can I Hit 400whp on Pump gas ? (RyanAutry)

i think its within reason....Sound like u have all the goodies u need

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11-06-2002, 02:47 PM

DIRep972

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

id go w/ 9:1 compression since u r concerned w/ making power on pump gas.

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11-06-2002, 03:43 PM

C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (DIRep972)

Quote:

id go w/ 9:1 compression since u r concerned w/ making power on pump gas.

well i can run 15psi on 94 octane with 10:1 pistons, so which would you prefer, 15psi on 10:1 or 9:1...the higher compression will make more hp...

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11-06-2002, 03:49 PM

SIXTYdashONE

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

i think u can do it..keyword THINK

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11-06-2002, 04:22 PM

DIRep972

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

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id go w/ 9:1 compression since u r concerned w/ making power on pump gas.

well i can run 15psi on 94 octane with 10:1 pistons, so which would you prefer, 15psi on 10:1 or 9:1...the higher compression will make more hp...

I would prefer 18psi on 9:1 w/ 94 octane.

[Modified by DIRep972, 1:22 AM 11/7/2002]

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11-06-2002, 04:26 PM

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C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (DIRep972)

Quote:

I would prefer 18psi on 9:1 w/ 94 octane.

[Modified by DIRep972, 1:22 AM 11/7/2002]

true, but cant i lower my compression with a headgasket ?

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11-06-2002, 04:52 PM

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DIRep972

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

I found this graph online awhile ago and I cant remember the original link so I just had it hosted so I could show it to u. the #'s in the middle represent the effective compression ratio. On most motors 18:1 effective compression is the most that can be run on pump gas(93 octane). some a little more some a little less depending on head design and other factors.

Im not telling u to go and get a headgasket to lower ur compression just cause u can run more boost, ultimatly its ur decision. but in an octane limited enviorment I would choose the low compression over the high cause in the end u can make more power w/ more boost at equal octane.

Consider both ways of doing things and then decide what u want. higher compression will yeild u more low end grunt w/ quicker spool and create more efficient power at less boost. lower compression will allow u to run more boost and timing and make more total power at given octane level.

maybe u should just run 10:1 and be happy w/ whatever #'s u make on pump and then run race gas when u need more boost.

[Modified by DIRep972, 1:54 AM 11/7/2002]

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11-06-2002, 05:13 PM

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C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (DIRep972)

well, which headgasket can i get to lower my compression, cometic ? if so can you tell me the specs and what my overall compression will be...?

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11-06-2002, 05:15 PM

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sutrusu

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

i read in honda tuning that the h22 crank is already balanced from the factory

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11-06-2002, 05:30 PM

#14

C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

wait, can i run a cometic headgasket with a golden eagle sleeved block or do i have to use stock headgasket ?

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11-06-2002, 05:35 PM

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DIRep972

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

Quote:

well, which headgasket can i get to lower my compression, cometic ? if so can you tell me the specs and what my overall compression will be...?

it depends which headgasket u go with. inline pro, cometic, blitz etc all make thicker headgaskets but im not sure which ones are for the H22 and how many points they lower it.

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11-06-2002, 05:38 PM

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DIRep972

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

Quote:

wait, can i run a cometic headgasket with a golden eagle sleeved block or do i have to use stock headgasket ?

i dont see why u couldnt run a cometic headgasket w/ GE sleeves but maybe someone can clarify. so u dont think u will ever have access to race gas?

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11-06-2002, 05:40 PM

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C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

yes i know i will have access to race gas, but i run my car on the street all the time (i know i shouldnt) and dont like to change my settings. I read somewhere about not being able to use a cometic gasket with a golden eagle sleeved block. I think 400 will be accessable on 15psi though with 10:1 pistons...

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11-06-2002, 05:41 PM

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jinxproof99

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

Quote:

Can I Hit 400whp on Pump gas ? ............What do you guys think ?

yes, but its not a matter of can you, just....how long will it last?? that is a question that i don't think anyone here can answer. i haven't seen anyone running 400+ on 93 octane only daily. theres a few trying it out, but a few months doesn't count......only time will tell.

with the right fuel/engine management/tuner you might have a shot.

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11-06-2002, 05:46 PM

#19

C-Murdock

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Re: Can I Hit 400whp on Pump gas ? (C-Redrum)

well jinx since your car was daily driven, how much boost did you run daily and whp ?

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11-06-2002, 06:29 PM

#20

blufke

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Re: Can I Hit 400whp on Pump gas ? (mos)

Quote:

You might need some methanol/water injection to help reach that goal.

thats what i would do. put together your own kit or spend a few hundred on an aquamist kit and run the equivalent of 100 plus octane using denatured alcohol and water.