Hey guys, I'm currently running about 1 bar of boost on my Greddy T88 on 93 pump gas, but i'd like to run more boost (the turbo would be much happier closer to its efficency range). I really only have a couple option, meth/alcohol injection or higher octane fuel. I guess i could also do a combination of both.

Anyway, i found a local supplier for VP racing fuels and was curious about the streetblaze line. What do you think of the Streetblaze with an R+M/2 octane of 103? What do you think a safe level of boost would be on this fuel?

 

How much boost are you wanting to run? It has a motor octane of 117.

VP C16 is the shiz.

 

Cheaper way of getting higher octane http://www.elektro.com/~audi/toluene/

 

If you want to experiment, try the E85 gas. It's only $1.99 a gallon and is 113 octane.

Mustang guys are using and putting out well over 1,000whp.

http://www.turbomustangs.com/smf/ind...?topic=47094.0

 

Cons:
It takes more of this fuel to create the same energy as regular gasoline. Therefore your car will use more fuel and you will see a decrease of approximately 10-15% in fuel economy. To make big horsepower you will need more fuel pump and more injector. Many people state that the fuel is corrosive and it could have adverse effects on aluminum fuel rails, injector o-rings and fuel lines. But so far in 9 months of testing we have seen no such side effects.

Even at $2 dollars a gallon your going to be using about twice the amount of fuel when you swithch to alcohol. Guys have been using alcohol & methanol for quite sometime now. It may be cheaper but the downside is you will be spending more because you are going to have to burn up more. That's like my buddy when he switched over from running C16 fuel to alcohol he went from running 4 1600cc injectors to running 8 1600cc injectors. Benifits are you can run higher boost levels safer and with no intercooler, but you will be using a shitload more fuel. So the $2 a gallon for alcohol quickly works out to $4 or even more a gal equivalent for fuel. Kind of misleading if you don't know what your working with. Toluene or xylene can be found almost anywhere Home Depot, Lowes or any paint store will have it. Beats paying $50 for 5gals of race fuel. Just my 2 cents.

 

Around 20 on the street (if it will hold traction) and 25 or so at the track (if the 103 will support it). I would love to get a C16 tune with high boost, but i want to stay away from leaded gas.

 

We're talking about high boost/high Hp rotaries right? Since when did we start worrying about gas mileage?

FYI: My friend tried the toluene and his motor popped with an afr of 10.8.

I personally wouldn't touch it unless it's proven like C16 or Alcohol. I don't know anyone using toluene on a high hp rotary, do you?

 

E85 could be used and you wont be burning up twice as much as with straight alcohol. It also wont give you the corrosiveness of methonal either. That said even $4gal is better than $8-12

-S-

 

I don't really feel safe using something like toluene on my car, i would feel much better using a fuel that has a higher octane to start with.

 

I run C16 on my race car but from what I gathered from the originator of this thread that his car is for street use. If you own a rotary your not worried about fuel economy trust me on this one I drove a 13B with a large bridgeport for a daily driver for almost a year that **** gets expensive quick. Like the orginator of this thread stated he is currently running pump gas and was looking into uping the boost. Water injection or some sort of other fuel will be the only choice just depends on what you want and how deep your pockets are. So your telling me you drive your car around the streets on C16?

 

So you run pump gas on the streets and your looking for a higher octane fuel for the track? Or do you want to run higher octane fuel on the streets also? Your best bet would be water injection for best of both worlds. But strictly for the track can't beat C16.

 

I like to run a higher octane all the time, streets and strip. I don't put that many miles on my car at all, I only drive it on average 3-4 days per month, more in the summer, less in the winter.

I want to stay away from leaded gas. Maybe water/meth injection is the way to go, but i'd like to hear from anyone that is running that streetblaze gas, as I don't want to be the one to find its limits.

 

Yes, I drive mine around with C16 in it. It's too much trouble to drain the gas etc. etc. etc.

 

DAMNNNN!!! You must have some deep pockets bro. Hey like the saying goes if you got it, flaunt it. How many street miles do you average on your car? Say like in a weeks worth of driving.

 

Deep pockets? HELL NO!!!

I drove it about 1,000 miles last year

 

we have 110 octane here at the pump at school for 3.75 a gallon woo wooooo

 

I found two places here in the washington metropolitan area that have E85. Anyone here have tried this fuel? would anyone recommend it for daily driven at 19lbs boost and water injection?

thanks
glean

 

I wouldn't recommend using it quite yet. The fuel is still in a "dirty state". I would wait for the tanks to cycle through for bit. You know, the tanks aren't completely dry when they dump in E85. They could be pooring it on top of 87 octane.

 

I just called them here in Arlington Va and they had this fuel for a little over a year now. Do you think that the tanks have been cylced enough? The price is currently at $2.72 per gallon. Thats not to bad for 113 octane. Or is 113?

 

that would be extremely cheap for 113 octane...

 

E85 is 100-105 octane according to all the web sites run by the companies selling it.

If you want to push it on unleaded get some VP Motorsport 109

MOTORSPORT 109
Produces more power than any other unleaded fuel. Recommended for higher boost applications with CRs up to 11:1 or naturally aspirated engines up to 13:1.

• Color: Clear
• Motor Octane: 101
• R+M/2: 105
• Research Octane: 109
• Oxygenated: Yes
• Specific Gravity: .722 at 60° F

Prepare to spend a good $6-$7 a gallon on it though. C16 isn't much more.

 

I did some more checking, the performance shop that did the test on it with the 1000whp mustang netted 106-107 motor octane.

It's a buck less than 87 octane and according to their test it uses 15% more fuel, so it seems a rotary could run 20-22 psi safely on gas that's cheaper than 87 octane.

Can't wait to see someone test this on a rotary.

 

I live in Tucson...same place as alot of the guys in that thread. E85 is like $0.10 cheaper than 87 octane.

 

It's 1.49 here

 

I'd love to give the E85 a shot, i think there are a few pumps in Indy that have it now. I just need someone to tune it for me. 20 psi on a T88 with cheap fuel would be nice.