Lexus ISF / IS-F / LFA / LF-A  Forum banner

1 - 15 of 15 Posts

·
Registered
Joined
·
54 Posts
Discussion Starter #1
has anybody tried running 100 octane yet? i was curious to see if there was a big difference in power or not.

another idea was E-85 if anybody has tried it or not. an example of how good E-85 is a GTR with full exhaust and 2 fuel pumps with tune has almost 650WHP and ran a 10sec 1/4mi. that is insane and there's actually a video clip of it somewhere on nagtroc.org (gtr forums)
 

·
Registered
Joined
·
69 Posts
I've run 100, gets you nothing on a stock motor. E-85 will eat up fuel system parts in the car since it was not designed to run E-85.
 

·
Registered
Joined
·
194 Posts
E-85 will eat up fuel system parts in the car since it was not designed to run E-85.
your miss information is horrible. please tell me you don't believe that.
 

·
Registered
Joined
·
222 Posts
Tried 100 octane didn't really feel any difference and my times were about the same.
 

·
Registered
Joined
·
54 Posts
Discussion Starter #6
Andy-
how do you think the E-85 would be on a stock setup or with basic bolt ons?
 

·
Registered
Joined
·
70 Posts
The only way your going to benefit with this is to start messing with the tuning. Running a higher octane gas or E85 allows them to turn up the boost (which we don't have) and advance the timing (which I don't even know if this is possible with the car). Either way, a stock IS-f or one with bolt-ons will not benefit from the addition of either of these without tuning to extract the extra power your using it for.
 

·
Registered
Joined
·
54 Posts
Discussion Starter #8
thats the biggest thing i dislike about the ISF not being able to have a stand alone or ECU tuning!!
 

·
Registered
Joined
·
194 Posts
well i can tell you andy has a good handle on things with this, and also there are some options that Janoy is looking into also.
 

·
Premium Member
Joined
·
243 Posts
Well we can't say better fuel won't help a bit. It will reduce the chance of knock so you don't have to worry about the stock computer pulling timing. We have some idea's, just takes time! Headers First!
 

·
Registered
Joined
·
69 Posts
your miss information is horrible. please tell me you don't believe that.
http://en.wikipedia.org/wiki/E85_in_standard_engines

The use of E85 in standard gasoline engines requires engine and fuel system adaptation, as the use of ethanol blends in conventional gasoline vehicles is restricted to low mixtures or for specially designed flexible-fuel vehicles, because ethanol requires a different air/fuel ratio than conventional gasoline and can be corrosive, degrading some of the materials in the engine and fuel system in older vehicles.
 

·
Registered
Joined
·
194 Posts
http://en.wikipedia.org/wiki/E85_in_standard_engines

The use of E85 in standard gasoline engines requires engine and fuel system adaptation, as the use of ethanol blends in conventional gasoline vehicles is restricted to low mixtures or for specially designed flexible-fuel vehicles, because ethanol requires a different air/fuel ratio than conventional gasoline and can be corrosive, degrading some of the materials in the engine and fuel system in older vehicles.

let me site some some things for you....


oh and your source is wiki? lets get cold hard facts. truth is you could put e85 in your tank and the car will run completely fine. since you want to quote wiki ill let you continue your search for quality information.
 

·
Registered
Joined
·
191 Posts
has anybody tried running 100 octane yet? i was curious to see if there was a big difference in power or not.
I've tried both 93 and 100 at the drag strip with little to no differences noticed. The only reason I even tried the 100 was because I was dangerously low on fuel with no regular gas station within 10 miles of being open. And as a matter of fact I think the car actually ran a smidge slower with the 100.
 
1 - 15 of 15 Posts
Top