So im moving to AZ in Feb and my buddy said the premium gas is only 91 octane. When i was tuned i was tuned running 93 octane. Will i need to be retuned so that i dont knock? or should i be safe just running the 91?

 

You will be safe. But if you want to make the most power from 91 octane, you should probably tune for 91. That's my .02 cents.

 

yeah thats probably right. ill have to see if i can get ahold of 06black and try to get retuned.

 

Retune the car for 91. You'll see the power than running lower octane that your car doesn't want

 

Depends on how aggressive the 93 tune is. Do you happen to know what AFR and Timing you are running?

 

There is a possibility of knock due to the octane raiting being lower... yes its not much..

if the tune is aggressive, then you should think about having it retuned. This would be because the car is at its limits with the octane of fuel its using, and lowering the octane will only mean a possibility of knock..

if the car has a moderate tune, you should be okay.

 

i know that he did not want to tune me really aggressive because i did not have a wideband and he couldnt really tell how close it was or something. but im not totally sure on how close it is!

 

FAIL, has one stock.....LOL

 

YES get it retuned. If your tuner doesn't know how to use the factory wideband... then he shouldn't be tuning

 

umm.. his tuner is 06black....

 

what elevation are you moving to

 

LOL, big time!!!!

 

i thought someone said that they had a narrow band stock? or was that just the LSJ

 

lnf has wide band. Lsj has narrow.

 

Ha aha yep . You would be amazed how many people don't believe that thou.


Exactly ...... there are some scary "TUNERS" out there . There should be a test for some of these people ...... before they tune on any other car.... but their own.

 

ihave an 08. it diddnt come with the rpd

honestly i do not know! lol! i just know its the Phoenix area.

 

ahhh thanks for the clarification. sorry if i came off as a *******. i like learning about different cars. i wasn't aware that the lnf has a stock wideband. interesting!

 

Well I didn't read his sig... if in fact bryan tuned your car... get with him but it's prolly safe to say you would be okay.

He's one of the better tuners from the site! Handsdown

 

ive been trying to get ahold of him. hes not easy to get a hold of, ill hafta keep trying.

 

I'll try for you too!

 

personally i wouldnt get it retuned unless u modified the engine or added parts to it. the whole reason for the differance between 91 and 93 is the location of the gas station. if you live at a low elevation or near the coast your are likly to see 93. higher elevation ur gonna see 91. if you where tuned for 93 at a low elevation with more dense air then when you go to a higher elevation with thinner air then your car compensates for it automaticlly. i think thats y they put a maf senser in these damn things. i could be wrong tho. i wouldnt know y els they have them :P

 

You dont need to RPD to have a Wideband in the car. Its still there. If he tuned with HPT he could log it with HPT, no excuse..

 

Well who knows then? im sure he knew what he was doing. maybe i missunderstood what he said?

haha! sweet! yeah cuz i dont have his phone number and he couldnt receive messages on here the other day, so i emailed him but no luck yet.

 

I guess if worse comes to worse i could just stock up on the bottles of octane booster and throw one in everytime i fill up?

 

Good for raising your octane level .1-.2. If you can find the Powermist gallon's of booster out by you, those have worked decent with a whole gallon mixed with a fillup of 91.