AFRLS1

iTrader: (14)

I'm just curious as to what some of the power levels LS1's are at maxed out on pump gas..Any info would help..Thanks

EPP

iTrader: (22)

I know we've made 800 rwhp on 93 octane without detonation problems. Bob

Got Me SOM

iTrader: (2)

I make 526 currently but my little blower is maxxed and my tune sucks. i know she has more in her with a bigger blower on 93.

Pro Stock John

iTrader: (34)

I bet you'll find that a lot of the big number cars are maxing out at around 15psi.

AFRLS1

iTrader: (14)

so 15psi is about it.. anybody running more?

bboyferal

iTrader: (9)

I'll let you know soon.

AFRLS1

iTrader: (14)

you running a single or twin setup?

bboyferal

iTrader: (9)

Single.

Julio

Too broad a question. Dont address displacement, compression, turbo's'/blower, IC and size, exact octane.. big diff between Ca pump 91 and Sunoco 94 or what some call 100 unleaded since they get it from a pump.

Then the other issue with or without supplemental injection.. example Parish went over 1000 RWHP on pump gas(93) 26 PSI and methanol injection.

Huge diff between a twin turbo 427 at 8:1 compression and a centrifugal 346 at 10.5:1.

And then the biggie.. how long has it run at those numbers When you play with low octane fuel.. you can get into trouble..

AFRLS1

iTrader: (14)

all good points, i'm just shooting for a max boost for pump 93 gas with my twin setup

TT402LS1

iTrader: (5)

Nitrorocket is running 18psi twin set up on 93. 850rwhp. May he will chime in and givemore details.

Julio

Just watch your knock readings and keep squeezing. It will tell you when your done.

You can get more boost if you drop timing.. but careful on EGT issues.

And if you do pickup a little knock.. add some good gas to the tank and see if the problem goes away.. if it does.. you just found your limit.

HTH

Fullthrottledan1

370ci, 9.33: compression, GT40-88, 15psi yealds 656rwhp in my little truck on 93 octane

nitrorocket

iTrader: (12)

I make somewhere over 800 rwhp on 93 octane, 18.5 psi and 18 degrees of timing. 8:1 compression, 3850 lb car. I am going to the track this week and will have some fast street car numbers I am sure. I am not as concerned with power as getting it to the ground, which has been quite a task. The Turbosmart EBC has really helped here!!

Boost should not be a concern, power and traction should. For instance, with a better top end on my setup, I would make more power at less boost, but like all of us, I have to work with what I have.

-Stock aluminum block
-Stock crank
-Stock heads(ported)
-Stock intake(ls6)
-Stock throttle body
-Stock PCM
-Stock MLS head gaskets

-GT35 BB twin turbos
-96 lb injectors
-Forged pistons, billet rods
-ARP studs through out
-Spearco intercooler
-Professionally tuned by Me and Myself and I


I like to keep it on the cheap!

bboyferal

iTrader: (9)

Cheap FTW!!!

Got Me SOM

iTrader: (2)

nitrorocket isnt that in a Chevelle?

I used to own a real 1970 Chevelle SS396. i miss that car.

Slowhawk

iTrader: (12)

We've done 800hp/790tq safely with a Turbo.

Superchargers are different.We've done 840hp/650tq on pump BUT when it was run hard at the track the heads lifted bad.So safely would be 700-750hp.

Now,if you use Meth it's a different story.

AFRLS1

iTrader: (14)

very nice number guys, we are narrowing it down here though.. 15-18 psi on pump gas 700-800 rwhp

oufan2929

751rwhp here, but should see well over 800 here real soon. 91 octane, no meth, 14 degrees timing. mods in sig

Packy

iTrader: (11)

540ish hp with 514 ft lbs for me with 7 psi and 93 oct.