Formula350

iTrader: (3)

I was under the impression that fuel additives don't do jack, unless Street Blaze is like 4gals of 101oc. Don't know if you have it around you, but add in some E85 to your setup. They have a website though and you can put in your zip code and then it'll show where local stations that sell it are. Also depending on what octane you start with, I'd only run like a 35-45% E85 to 65-55% Gas ratio. On my car (stock, see sig) if I run over 40:60 it starts to run crappy, but that 115oc E85 helps, and it's dirt cheap compared to 110oc gas ($4.50/gal here for that, $2.35~gal for E85). Alternatively, you could have your ECM tuned specifically for E85 and then run that, but according to an E85 guru here you'd want to upgrade your fuel system to run that type of fuel since it's alcohol and not very lubricative.

And anyone please correct any info, I'm just going off what some reputable people here have told me.

ABA383

iTrader: (1)

I run a Joe Overton spec'd custom from Erson...226/234 .568" lift...Shift points are 6500 and 6400 and I cross at 64-6500 with 4.10s and a 28" M/T radial...

--Alan

speed_demon24

iTrader: (6)

E85 isn't 115 octane, it's 104 IIRC. And adding it on a stock longblock won't add 1 hp, it'll just kill your gas millage.

Formula350

iTrader: (3)

My apologies, I forgot. It's 105 actually. But still, it shouldn't kill gas mileage, it should help since it'll prevent detonation and help further burn the fuel. Unless I'm not understanding higher octane correctly.

http://www.e85fuel.com/

speed_demon24

iTrader: (6)

It takes more ethonal vs gasoline to produce the same amount of energy so you will get worse gas millage. And there is no reason you should be getting detonation on 93 octane with a stock motor. Running higher octane will hurt performance in applications where it is not needed.

Formula350

iTrader: (3)

Well I know my car doesn't need more octane, yet I can tell a clear difference between standard petrol and running a mix with E85. Similarly, I can tell when running 110 petrol. However, for whatever reason, I do get pre-ig under WOT in the upper RPM range (not all the time oddly).

However I'm not hijacking this thread any further. If you want to help or further the discussion Speed, I'd love to hear your opinions/ideas and PM me them, Thanks.

96capricemgr

iTrader: (1)

Means you have tuning issies. E85 will lean it out and sounds like too much timing.
24lbs SVOs are bigger than 24lbs at our fuel pressure.
A lot of race fuels have oxygenants too which again would help lean out an overly rich AFR.

Look into it E85 has a lower BTU content, meaning contains less energy, which means you burn more to do the same amount of work. Very simple, basic science.

IH8FORD, I might consider a Autolite 103, that is a lot of compression and while the flow chart is NOT good like guys are saying the car is obviously moving air and making power, so the flow chart means jack.

IH8FORD

iTrader: (6)

Street blaze is a type of VP race fuel not a fuel additive . It is unleaded and oxygenated. Which is fine for me because the car is a little fat because It has a nitrous tune. So this should put me about right now that I am only NA.I willnot be running a mix I will be running it straight just to make sure.

I may try the autolite's If I dont have any luck with the TR6's.As for the heads they are stock valve size I know I said they weren't but I was mistaken. The machine shop was suppose to up the valve size but didn't. I measured the valves and came up with 1.94 /1.50 maybe that clears some things up.

IH8FORD

iTrader: (6)

I am looking at getting another cam from Bret Bauer now. I dont know how long it will take to get it . I am pretty sure it will make more power than my comp 306 is.