SUPERTURBOCIVIC

Hmm I think I am really gonna need to take a close look at all this I have been taking these classes for this stuff and man there is so much to it geeezzzeeee

locash

Per the VP rep..

"No, gravity has nothing to do with detonation resistance. It's just the weight of the fuel in relation to water.

Jason Rueckert
Director of Motorsports Development
VP Racing Fuels Inc. "

locash

It appears that C23 is working for Tony due to the air to water setup.. The rest of us should probably stick to C16 if using ID2000's

"What I have seen is that C23 will work fine. You just have to keep your air inlet temps colder. I'd say under 100 degrees to be safe. C16 has a better tolerance to high inlet temps.

Jason Rueckert
Director of Motorsports Development
VP Racing Fuels Inc.
"

01DC4

iTrader: (3)

so running the id1000's and vp import is fine for future reference? i know tony brought it up a few pages back and i really never saw a clear answer.

locash

Yes, the ID1000's are fine with VP Import fuel..

Bugermass

Not to bring this convo back from the dead, but I've been doing some research and wondering what you guys thoughts on whats the best fuel for a boosted app where theres no intercooler?? 15-20PSI 300HP range, probably gonna see 150+ IATs.

I've been told by one guy in the "know" that C16 will handle this just fine.. How would Q16 compare to C16 when considering an application with super high IATs and 13:1 compression? The other alternative that I am considering is E85 since it has good latent heat of evaporation..

Bore x stroke: 76.0 x 55.0mm approx 14,000RPMs..

Turbogixxer

E85 would be your best bet. I have done superchargers without a intercooler, (not the same as you, but close) and it works great. Petrol just does not have the same effect as ethanol. After talking to a few good v8 guys, they agreed on the same thing.

Best would be to play with it and see what works for you.

Bugermass

Cool, I'm about 98% set on doing E85, I just wanted to get some extra input from a technical perspective on the fuels in this senario incase there was some tidbit of fuel info I missed somewhere lol.

0KStuned

Well if Q16 stoich is 13.4 like Tony said then .91 lambda is 12.1 not 13.3.

So now I'm curious, would you tune your car for .91 lambda on c16 (13.37 AFR)?

narfdanarf

There are a lot of bikes running those numbers on pump gas...

Enzo-Racing

.91 lambda is always .91 lambda regardless of fuel type.

I'm going to assume that he's reading that from his ecu that is displaying in lambda.

Now if millers car had an air fuel meter on it (set for gasoline stoich) and it's tuned for .91 lambda then the meter would display 13.37.

I'm going to guess that his engine is highly efficient and most engines that are require less amounts of fuel. I'm sure he's got quite a bit of compression as that usually does it.
So I would say his car would run best with leaner mixtures with C16 as well.

Your confusing yourself with different stoich values of fuel types. This is why most people (except USA) use lambda to tune instead of a/f. Most a/f meters read in lambda and then convert that to the a/f of gasoline or other fuel type if selectable. So don't try to learn the stoich values of every fuel type or mixture, etc. Just learn what lambda your engine wants to run at and tune for that a/f in the gasoline scale.

Enzo-Racing

I would definitely do it with E85 or E98

tepid1

Very solid info right there! A lot of people don't know or think of it like that.

Bugermass

Not at 13.0:1 compression on stock pistons and rods and not in the texas mile (endurance).. I'll have alot more heat buildup than a typical drag or street bike..

narfdanarf

Yeah you're right, it's like 12.5:1 and you don't think they do pulls longer than a mile on the street?

Bugermass

I rather not take a chance on pump gas considerning if the motor grenades I'll be skiing on a film of oil at 200+ MPH.. Just not a situation I'd like to be in on a bike.. I think I'll stick to somthing with a little better octane and better cooling properties. I just have this feeling at 16-20 PSI my IATs are gonna be pretty high with the size turbo I'm running and no intercooler. Thanks for the input though..