Can I get some more power from the fuel?

JSFIRE79 · 12-17-2003, 03:22 PM

Im running a stock 93 block with hyperpathetic pistons , Gt-40 heads, GT-40 Intake (Fully ported) 65mm TB, Pro-M 77mm, w/Granitelli meter, Nitrous Cam, 125 Shot of juice, 255 lph intake pump, Kirban adjustable regulator, and 24lbs injectors. Right now the regulators@ 38Psi w/ vac. off My question is there more power/tenths to be made from the regulator? If so whats safe with the juice...........also im running free flow exuast basically longtubes with no pipe or mufflers? I think it's helping but could I be losing valuable back pressure?

bigwhitecobra · 12-17-2003, 06:11 PM

If I am following you, you are running 125 shot, and your fuel pressure is at the stock setting of 38psi.
The only reall way to find the right setting is to get a few dyno sessions going and get your A/F ratio at different levels and see what performs best. I would bump it to about 40. you <b>really</b> don't want to lean out any. Are you running a wet or dry system? If you are running a dry system, you are letting the MAF do all the calculations, right?

In other words you're spraying through the MAF. I hope this helps some. What kit are you running? Anyway, talk to you later.

JSFIRE79 · 12-17-2003, 07:15 PM

I'm running the dry ZEX kit..temporarly....till I get the new motor then will move up.anyways it's the 125 dry kit from zex......But are you saying that it does'nt matter what setting I put and that the computer (which is stock) will put it's preset amount anyways?

12-17-2003, 03:22 PM	#1
JSFIRE79 Registered Member Join Date: Sep 2000 Location: Northridge, Ca. USA Posts: 27	Can I get some more power from the fuel? Im running a stock 93 block with hyperpathetic pistons , Gt-40 heads, GT-40 Intake (Fully ported) 65mm TB, Pro-M 77mm, w/Granitelli meter, Nitrous Cam, 125 Shot of juice, 255 lph intake pump, Kirban adjustable regulator, and 24lbs injectors. Right now the regulators@ 38Psi w/ vac. off My question is there more power/tenths to be made from the regulator? If so whats safe with the juice...........also im running free flow exuast basically longtubes with no pipe or mufflers? I think it's helping but could I be losing valuable back pressure? __________________ 93GT Stock 302, 170,000 miles....GT-40Y Heads, Ported and Extrude Honed GT-40 intake, Pro-M w/Granitelli Meter , 65mm Throttle Body , Custom Crane Cam, Rockers, lifters, pushrods, Mikes Transmissions Built AOD, 3000 stall, Aluminum Driveshaft , 3.73 gears, Motorsports shorty headers, Stock axles, ZEX 125HP kit. w/Bottle warmer. 60ft. - 1.60 1/4- 11.38 MPH- 119 WWW.StarkRacing.net

12-17-2003, 06:11 PM	#2
bigwhitecobra Huh? Whatcha said? Join Date: Oct 2000 Location: Fayetteville, NC Posts: 1,073	If I am following you, you are running 125 shot, and your fuel pressure is at the stock setting of 38psi. The only reall way to find the right setting is to get a few dyno sessions going and get your A/F ratio at different levels and see what performs best. I would bump it to about 40. you <b>really</b> don't want to lean out any. Are you running a wet or dry system? If you are running a dry system, you are letting the MAF do all the calculations, right? In other words you're spraying through the MAF. I hope this helps some. What kit are you running? Anyway, talk to you later. __________________ 2003 GT White---STOLEN May you burn in hell whoever took it. Dumbazz didn't even get the good engine that was in the garage.

12-17-2003, 07:15 PM	#3
JSFIRE79 Registered Member Join Date: Sep 2000 Location: Northridge, Ca. USA Posts: 27	I'm running the dry ZEX kit..temporarly....till I get the new motor then will move up.anyways it's the 125 dry kit from zex......But are you saying that it does'nt matter what setting I put and that the computer (which is stock) will put it's preset amount anyways? __________________ 93GT Stock 302, 170,000 miles....GT-40Y Heads, Ported and Extrude Honed GT-40 intake, Pro-M w/Granitelli Meter , 65mm Throttle Body , Custom Crane Cam, Rockers, lifters, pushrods, Mikes Transmissions Built AOD, 3000 stall, Aluminum Driveshaft , 3.73 gears, Motorsports shorty headers, Stock axles, ZEX 125HP kit. w/Bottle warmer. 60ft. - 1.60 1/4- 11.38 MPH- 119 WWW.StarkRacing.net

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