Choppy_Idle

Tq seems a little low, i have the same w/o heads or cam...

Which gas u are runnin, maybe step up on E85 and made a new tune?

Greetz
Ron

Darth_V8r

iTrader: (4)

On the surface, that seems true, but getting 500rwhp out of a 5.7 NA is really not easy. It always seems like there are more out there than there, because it's the internet. But especially going through a stalled auto, it's just plain hard to do. Now, if you're talking 500 bhp, you might be pretty close factoring in

If your goal is to get into tens, there might be opportunity to work the car instead of the motor and get there through efficiency and effectiveness of the car rather than brute force of the engine.

Craig Chamboullides

HCI2000SS

iTrader: (2)

E85 is only going to be worth it if your car likes more timing. Some n/a setups make their max power on 93 and therefore really don't benefit much from E85

Craig Chamboullides

Darth_V8r

iTrader: (4)

In that case I'd say wait until you do the stall and see if you're still wanting more. After that, cheapest power is nitrous. If you are in the NA is all the yay camp, then start saving for a bigger motor.

big hammer

E85 is more about the oxygenates than the timing.

Craig Chamboullides

So most of what I’ve read and seen e85 with N/a didn’t really add much of any unless it was high compression or boost. Are you getting different results?

HCI2000SS

iTrader: (2)

Say you're limited to 26 degrees timing on 93 (because it knocks with any more timing) but your car makes max power on 30 degrees. Well then in a scenario like this E85 could add another 20-25 hp with that extra timing. But if that same car can achieve 30 degrees on pump gas then the gain in very small. One benefit of E85 is that less timing is pulled due to heat and whatnot. So basically some n/a applications will benefit a fair amount and some very little

big hammer

E85 adds power in NA engines because you can burn more fuel per cycle, giving a net power gain. It’s a slower burning fuel and requires more timing. If you build your motor specifically for e85 you can get a fair bit more power yet because you can crank the compression way up.

Results vary from 10 rwhp up to 25-30 rwhp in modern DI engines

blk00ss

iTrader: (66)

How about e85 and some 235’s? He be cookin then. Amirite?

big hammer

Cheese and rice that’ll push an LS way into the 5’s!

qweedqwag

Yep get a better stall, Yanks, Circle D, something along those lines, I'm runnig 3600 on my DD and its fun and has decent street manners. The bad thing is you'll get used to it and want more. Call Brute speed and drop a SC in that bitch.

Bob@BruteSpeed

iTrader: (16)

Thanks, and I agree!! Bob

sillysspeed

iTrader: (21)

There is still a lot of optimizing to be done with your setup. If you want dyno numbers or if you want quicker et’s. I’ve been 9.80’s in my car which is a forged ls1 with flattop pistons, tea 243’s and a medium Cam. It takes a lot of dedication and fine tuning to get one there. Or you can go more ci if you want to stay On motor or just go power adder which is what I’m doing.

Side note e85 is your friend. My car runs,smells and goes quicker with e85 and same timing. I’m only a little over 11 to 1 compression. Some dome pistons and more compression will love e85.

sxc Z28

The converter will help quite a bit. Suspension parts, such as coil-overs, can improve both street driving and performance at the track. If you just keep adding power and don't make the car work you'll always see mediocre results. I think you can go bottom 11s with the power you have and still have something you enjoy to drive.

HCI2000SS

iTrader: (2)

OP, if you'd like to consider E85 you might also take a look at methanol injection. With a meth kit you wouldn't have to upgrade your injectors or fuel pump

AnotherWs6

iTrader: (17)

Not quite how it works. You NEED to burn more per cycle. E85 contains less energy, pound for pound, than gasonline. So in order to get the same power you have to burn more fuel. The fuel physically cools the combustion chamber and wards off detonation. Very beneficial in high power FI cars. They get to feed tons of cool (cool compared to your car's engine anyway) fuel into their combustion chambers.

In an NA car you can typically add more timing without detonation. That does not guarantee more power though, it often will give a slight bump. It all depends on what the car really wants.

Ever wonder how top fuel dragsters can make 10,000hp with no intercooler and a giant blower? Nitro methane, which has even greater cooling properties than e85 or alcohol.........

Nitro-methane also has a high latent heat of vaporization, meaning that it will absorb substantial engine heat as it vaporizes, providing an invaluable cooling mechanism.

.....if you were feeding a high pressure garden hose of air temp fuel into each of your cylinders the boost would be skys the limit.

Direct Injection cars use the same cooling principle. The gas is injected into the cylinder at high pressure, vaporizes and cools the combustion chamber much more than port injection. This allows the OE's to run higher compression and more timing for more power.

Anyhoo, skip E85. HP is going to come very expensively now NA. 15 yeard ago 450 to the wheels was pretty sick. And so the legendary LS1 earned its place in history. Cam and heads and huge power. Now they are yesterday's hero. Loved by much fewer, but much more.

Throw a procharger on the thing and change from worrying about getting more power to worrying about how to keep your car from exploding.

big hammer

Yes, you need to burn more E85. And it had less energy per unit. But it has so much o2 in it you can burn more units per cycle resulting in a net power gain over pump gas. It works the same way as oxygenated race fuel

jhshnh