High octane fuel and the truth

[sam5l]

well im currently studying at mta as a motor apprentice and there is a fellow classmate that works for a performance mob he said that they have had up to 40kw gains on car running e85(110 octane) i asked what difference it would make running 98ron he said significant and he cant lye because he does alot of dyno tuning street cars,race cars,rally cars, drift cars thats my 2 cents but i will say if your going from 91-98 theres is a ****in difference the computer edit's spark not combustion if the **** burns better you get more boom = more power,more efficientcy,more response,better idle and less pinging

 

[TI3VOM]

40kw gain from just using a higher octane rated fuel like e85(110) is in my opinion bull$hite I'm not saying it's not possible but you would need something like a 800+rwhp v8 to get that kind of gain.

 

[sam5l]

nah im talkin rally spec rex think big turbs,high fuel flow,big intercooler,big induction extensive tuning not your average 1-2hour tuning hours maybe 3-4-5 to get it perfect

 

[stevoss]

40kw gain from just using a higher octane rated fuel like e85(110) is in my opinion bull$hite I'm not saying it's not possible but you would need something like a 800+rwhp v8 to get that kind of gain.

then you would be wrong, i even found the link for you

Guilt-toy Now Running On E85 ! - Skylines Australia

 

[chevy_big_block_bro]

then you would be wrong, i even found the link for you

Guilt-toy Now Running On E85 ! - Skylines Australia

I think you'll find its with a tune. There was a article in SC mag about tuning for E85. The benefit alone isn't that great but there's extra power to be had if tuned properly compared to a car tuned to run 98RON.
Maybe word things better next time

 

[satos]

A few years ago normal unleaded was a good fuel now it is crap.
On the odd occasion I fill up with normal unleaded the car runs like crap.

 

[stevoss]

I think you'll find its with a tune. There was a article in SC mag about tuning for E85. The benefit alone isn't that great but there's extra power to be had if tuned properly compared to a car tuned to run 98RON.
Maybe word things better next time

of course with a tune, a standard car will be running way too lean on e85.

 

[soop]

How long have people been using alcohol based fuels in racing. And some people here STILL can't grasp its benifits???
Stunning to say the least....

 

[TrikkBen]

Always ran my car on premium, was a bit light on cash but needed to get home, put in half a tank of regular and suddenly the car is pinging of it's head...

 

[soop]

Can't see why it would ping, merly because you used 91ron.
The ignition tables would be tuned so that it wouldn't be advanced far enough to cause pre-detonation. This is, provided it's a factory tune.

Only reason the car would Benifit from a higher octane is because the ECU is able to advance the timing. Even then i don't think the Ecotec ECU has the ability to detect pre-detonation.