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pump gas limits?

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Old Dec 26, 2006 | 11:51 PM
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Default pump gas limits?

im still trying to learn about boosted setups, and if i were to buy a turbo kit or a blower, what would the limit be on regular unleaded 93, it would see 95% street and maybe the track once a month for ***** and giggles. whats your setup been and what power did you make, what tranny ect. thanks
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Old Dec 27, 2006 | 02:27 AM
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Pump gas will make more than your stock bottom end can handle.
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Old Dec 27, 2006 | 01:24 PM
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how much do you want to spend and how fast do you want to go ??

I ran a quite lazy 10.5 @ 145 on pump gas only, although I normally squirt some meth when racing for safety. I just tried one run without it out of curiosity. That was with a 1.97 60ft, 3600lbs T56 car.
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Old Dec 27, 2006 | 01:27 PM
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Also depends on how many cubes youll be dealing with.
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Old Dec 27, 2006 | 01:33 PM
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i dont have any plans yet, dont plan on getting anything fo a few years, just trying to learn, for example what can pump do on a 346, 370, 408 fully forged with a turbo or a supercharger. once again, im not in the position to make goals for myself, but to learn.

i know im a dreamer and all i have now is a little old stock internal nitrous car, but can a pump gas 408; maybe a 346 i dont know the limits of each on pump...making 800rw, 700rw, ect. basically my ideal car is on who can trap 140mph, run 93 octane and drive to the store to get milk
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Old Dec 27, 2006 | 01:52 PM
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Originally Posted by Hennytime
basically my ideal car is on who can trap 140mph, run 93 octane and drive to the store to get milk
Well I dont often go shopping in it, but I do drive it the 800+ mile round trip to go racing. So stopping for milk isnt difficult...lol
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Old Dec 27, 2006 | 05:38 PM
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Originally Posted by Hennytime
basically my ideal car is on who can trap 140mph, run 93 octane and drive to the store to get milk
I agree with ya on that one, but it's gotta have A.C. too. I'm trying but I think I'm gonna have to spray a little meth too.
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Old Dec 27, 2006 | 06:54 PM
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Originally Posted by 2001WS6Vert
I agree with ya on that one, but it's gotta have A.C. too. I'm trying but I think I'm gonna have to spray a little meth too.
theres kits out there that can keep the a/c, i like the epp d1sc kit they have, and the ofi turbo kit. either way its a street car. ive been trying to learn about both setups and just lurk in this area. the reason i like the 408 and direct port with a stand alone system with high octane gas in there. most of the time it'll be to and from meets and cruises and a few races here and there. when it comes down to it, its going to be a full weight pump gas car.

thing is i jsut want to see people's setups that run 93 octane all the time, weather it be stock block 10 bolt rear or fully built and forged everything. just want to see what people are making on 93 octane and what setup they are running
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Old Dec 27, 2006 | 08:56 PM
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Are you talking about pump gas only? Or are you talking about pump gas with meth etc.. ?
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Old Dec 27, 2006 | 11:42 PM
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Pump gas only (93 octane) with a 346 you can make about 800 rwhp without leaning on it to hard.
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Old Dec 27, 2006 | 11:50 PM
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Im guessing more cubes would be your frend when going for max power with pump gas? No?
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Old Dec 28, 2006 | 05:42 AM
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More cubes would definately make it easier to generate big power on pump gas, more safely.
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Old Dec 28, 2006 | 09:34 AM
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Steve what was your timing when you went 145 just on pump?
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Old Dec 28, 2006 | 09:59 AM
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Originally Posted by Hennytime
theres kits out there that can keep the a/c, i like the epp d1sc kit they have, and the ofi turbo kit. either way its a street car. ive been trying to learn about both setups and just lurk in this area. the reason i like the 408 and direct port with a stand alone system with high octane gas in there. most of the time it'll be to and from meets and cruises and a few races here and there. when it comes down to it, its going to be a full weight pump gas car.

thing is i jsut want to see people's setups that run 93 octane all the time, weather it be stock block 10 bolt rear or fully built and forged everything. just want to see what people are making on 93 octane and what setup they are running

on 346 cubes I'm thinking 600 rwhp is attainable on pump with safety based on what members here have posted.

383-650

402-700-750

427-750-800

with the new lsx blocks coming out like the dart and gmpp who knows you're talking close to 500 cubes so maybe 900, that's crazy.
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Old Dec 28, 2006 | 10:19 AM
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Originally Posted by Pro Stock John
Steve what was your timing when you went 145 just on pump?
circa 27 deg at 3000rpm dropping to 22deg from about 4500rpm then 20deg after 5000rpm

So basically when racing it would have been a flat 20deg, AFR's low 11's

IAT's measured in the inlet before the TB were 90degF at start of run, ending with 120degF

Straight SUL unleaded fuel, 97RON, which is equivalent to US 92/93 PON fuel on 8.7:1 CR

Ambient tem that day would probably have been around 60-70degF
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Old Dec 28, 2006 | 10:36 AM
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Originally Posted by BIG BAD BLACKSS
Im guessing more cubes would be your frend when going for max power with pump gas? No?
absolutely.

that's how the pump gas drag cars go so fast.

an engine is just a big air pump. more air and out=more power.
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Old Dec 28, 2006 | 05:03 PM
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Bigger bore sizes can be more prone to detonation. Just a thought on the bigger displacement...

Lower compression can trump the bore size issue though.
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Old Dec 28, 2006 | 05:36 PM
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why is that?
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Old Dec 28, 2006 | 08:53 PM
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Thanks Stevie, good to know. I'm 8:1 and am running around 21 degrees of timing so I'll have to make some pump gas passes at some point.
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Old Dec 28, 2006 | 09:00 PM
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Originally Posted by Pro Stock John
Thanks Stevie, good to know. I'm 8:1 and am running around 21 degrees of timing so I'll have to make some pump gas passes at some point.

Hey PSJ, what EMS are you running again?
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