Ok, so I'm finally considering running alcohol...but my question would be is it really worth it for me? By you people that know dyno curves...what kind of change would I be looking at over race gas (although this wasn't straight race gas)? This dyno is my '04 and was done on a 93/104 mix with my stock (plus 10.5) turbo and bolt-ons at 24.8psi, would changing to 93+alky change much? I figure I could probably go to around 28 psi. I'm also looking into swapping my GSC 264's for a pair of GSC 272's.

Yes I've been a member here for a couple years and have looked at MANY dyno charts with and without alky, so don't tell me to search. I'm thinking I would pick up a little more torque, would the WHP go up enough to make it worth my money? The car is my daily driver that visits the 1/4 mile every 4-6 weeks. It's always nice to hear what other people have to say before making a purchase, so any additional info/suggestions will help with my decision. Please don't post anything like "get alky" or "don't get alky" without a reasoning behind it. THANKS!

WHP: 372.23
WTQ: 362.37

 

What kind of dyno is that on? Dynojet?

 

This above was on a dynojet. I also have this one below of my car on a Mustang dyno before adding the header, o2 housing, hotside, lower intercooler piping and n'tercooler sprayer...so both this dynojet and this mustang are reading about the same.

 

Well your numbers are pretty good for that fuel mix on both.

However, with alcohol you should make 10-20whp more everywhere. As you probably know alcohol acts as both an aftercooler and a supplemental fuel (raising pump 93 into the 106 octane range).

If you have easy access to 104 and dont mind mixing fuel when you go to the track id keep things as they are. To me alcohol injection is too risky with the current lack of viable safeguards. I like water injection for consistency/safety purposes in track racing but id worry about relying on the alcohol pump to supplement my fuel mixture.

 

That's a pretty flat curve that you have now... I'm assuming it's flashed? You could probably get away with running more boost on race gas. On a 97 octane mix I pulled 28psi with some taper to redline with no issues. Car picked up almost 50hp/tq as compared to pump gas/lower boost.

I know you'll pick up some tq with alky but I couldn't really say how much with your chart above already being on a race gas mix. I've been thinking a lot lately about adding alky and more aggressive cams myself but I hate the fact that it's another thing that can fail.

Edit: Yes I agree.. if you can get 104 easily I would stick with it... although alky will yield even more powa

 

Alky will add a HUG torque spike, think 50 more now and for longer, and about 30 more WHP but the limiting factor is the turbo. It will also allow you to run the **** outa a larger turbo shoudl you upgrade. I am going alky, it makes everything better.

 

The top chart is also with the N'tercooler spraying nitrous on the stock intercooler to assist with the cooling. My new race intercooler will hopefully by arriving withing the next couple days and I'll be putting the spraying on that as well. Against what a lot of people say, the intercooler actually does help...my chart went up 25WHP and 5WTQ when spraying. I have easy access to the 104 when I go to the track, but it's like $6-8/gallon.

 

Yes, flashed by TurboTrix.

I already have ARP headstuds and an AEM wideband o2...that helps with 2 of the main concerns with alky...but there's always the part of something happening and it not spraying...BOOM!

 

Thanks for all the comments so far

 

I'm also pretty sure the 272's will help out my torque up top...and maybe a little more HP as well.

 

Wow all most like spraying nitrous stright into to the intake (+25whp) , do you ever wonder why it went up 25whp , I bet its not b/c on the cooler temps .
One thing for sure alcy would help out with is the price of gas .

 

I wasn't going to say anything about that

 

Don't pull that crap that I only gained HP because it was all sucked into the intake. I will admit the a/f leaned out a little bit (sucked in a small amount), but not enough for a 25 dryshot. I love people like you that say things don't work without actually having them.

 

"I will admit the a/f leaned out a little bit" ----well there you go

"rAcers" got 60hp+/- from a just 20 shot going in to the airfliter

If you really think its the only the cooling effect =hp try some Co2

BTW that is some good #'s , alcy prob would give the ability to run more psi and that would =more TQ down low but not much more hp up top .

 

Good points, didn't mean to snap at you...thought you were just coming in here to be sarcastic. When on the street I don't think any is getting injested...by watching the A/F...it doesn't change depending on the sprayer. I may be wrong though! Either way, I guess it works