Nate1647545505 Posted June 3, 2008 Report Share Posted June 3, 2008 yes. and no. So my car will run great if I use diesel..it has one the lowest ratings in the RON and MON tests...something like 10 RON 15 MON. There is alot more to fuel chemistry the octane rating that determines volumetric consuption. Quote Link to comment Share on other sites More sharing options...
Guest EM1 2ENVY Posted June 3, 2008 Report Share Posted June 3, 2008 common sence would say i was not talking about running diesel in a gasoline engine Quote Link to comment Share on other sites More sharing options...
Guest tbutera2112 Posted June 3, 2008 Report Share Posted June 3, 2008 he said lowest possible without detonation, obviously diesel wouldnt burn right...but if you can run 87 without detonation, then it will burn better than 93 for that particular vehicle Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 3, 2008 Report Share Posted June 3, 2008 word on the street is to expect 5% increase in HP so for me it should take it from 460 to the motor to 483 HP. but i'd rather find out for my self what i can get out of it. The power increase comes from (re)centering the combustion event. Adding 4-5 degrees nets nearly the same peak pressure point. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 3, 2008 Report Share Posted June 3, 2008 Steven, Tyler: That was a generalization, not a literal example. You cannot generalize volumetric consumption with octane rating alone. Quote Link to comment Share on other sites More sharing options...
Guest schnitzelwagen Posted June 3, 2008 Report Share Posted June 3, 2008 huge huge debate between na rotary over octane. not exactly sure where i stand on the topic. im running nitrous so i'v been using 92 or better if i can find it Quote Link to comment Share on other sites More sharing options...
Guest tbutera2112 Posted June 4, 2008 Report Share Posted June 4, 2008 i dont know much about octane rating...i just know that theres no point running higher octane than your car needs...my car ran better on 87 than it did on 93, so i bumped my timing up 8 degrees and now it cant run on 87 lol Quote Link to comment Share on other sites More sharing options...
Rob1647545496 Posted June 4, 2008 Report Share Posted June 4, 2008 nice did you base line before the E85? an your running 120% duty cycle? swap some big boys in there asap. lol, do you know what the stock injectors are good to? last time i dynoed was on 94 and i got 390 RWHP Quote Link to comment Share on other sites More sharing options...
Main3s Posted June 4, 2008 Author Report Share Posted June 4, 2008 Correct me if I'm wrong, because I just know a little about E85. But when I was looking into that for my GTP it seemed like a wash. Because E85 isn't a efficent as regular or premium it takes more to burn to run, hence the bigger injectors. So while it's cheeper per gallon you use almost twice as much. No doubt that it helps in the power dept. but for $$$ savings, I'm not sure. Quote Link to comment Share on other sites More sharing options...
Dave1647545494 Posted June 4, 2008 Report Share Posted June 4, 2008 thats correct e85 has less energy that gasoline so you have to run a richer mixture to make everything right it works out as a wash money wise unless they drop the price waaaaaaaaaay down Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 4, 2008 Report Share Posted June 4, 2008 Correct me if I'm wrong, because I just know a little about E85. But when I was looking into that for my GTP it seemed like a wash. Because E85 isn't a efficent as regular or premium it takes more to burn to run, hence the bigger injectors. So while it's cheeper per gallon you use almost twice as much. No doubt that it helps in the power dept. but for $$$ savings, I'm not sure. You're correct. For any alcohol based fuel to be econiomically feasible it will simply have to be cheap. The net gain in thermal & chemicle efficiency is offest by lower energy density. Quote Link to comment Share on other sites More sharing options...
Rob1647545496 Posted June 4, 2008 Report Share Posted June 4, 2008 You're correct. For any alcohol based fuel to be econiomically feasible it will simply have to be cheap. The net gain in thermal & chemicle efficiency is offest by lower energy density. yep, it's all about $ per mile not MPG Quote Link to comment Share on other sites More sharing options...
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