my dept changed fuel octane 93 to 89

[rico013]

Hey guys. i just need some input on how should i program my patrol vehicle if my department switched the fuel on us. we were running 93 octane, now we got 89 or possibly 87. we wont know until the fuel truck gets here. i just purchased the u7135 last week. i haven't done nothing yet. i do have a k/n cai. my vehicle is a 2007 charger r/t .if there is a tune for 89 or 87 let me know or a download program for it. thanks for the input

rico013
b.p.d

[mikel]

Go into the modify tune menu and remove 4 degrees from the WOT timing table and reinstall the tune.

[rico013]

Thanks mike. im heading into the shop tomorrow, if anything does come up i'll drop you a call or email. once again thanks

rico 013
b.p.d

[rico013]

hey mike i got everything download and its running like a champ. i remove 3 degrees as u said over the phone. no pinging at all. this might be a stupid question but what is wot mbt spark. do i have to do anything to that.

thanks again

rico013
b.p.d

[Mike_Levy]

You need to reduce the MBT the same amount, or the changes won't take effect.

[toddm]

Hey guys. My department is also experiencing cutbacks and has started using a lower octane fuel. I drive a 2007 stock Charger (Police package) with a Predator installed. After speaking with Tech Support, I adjusted the WOT Spark down 5 degrees across the board to cut down on spark knock.

My question is this, I have been told by a mechanic that a CAI could make a significant difference to the performance of my car. Will you advise on this please? Is the difference significant enough to warrant the cost of the CAI?

I know that I need a higher octane fuel, but until that time comes around...again, I'm stuck. Also, would you recommend any other changes to the program to increase my performance?

Thanks for the help!

[mikel]

Id do some logging to see if it has KR at WOT, if not, add another degree or two of timing, and as for a CAI, its a tough debate.

They tend to make 8-10 extra hp at the wheels, but whether thats worth the cost is up to you...

[duster360]

My question is this, I have been told by a mechanic that a CAI could make a significant difference to the performance of my car. Will you advise on this please? Is the difference significant enough to warrant the cost of the CAI?

Your "mechanic" is misinformed.

imo CAI do little to nothing and do not justify thier high costs in any way. My opinion is based on Facts and not marketing hype

Here's a great case study showing negligible effects of several CAI over the stock box+ K&N drop-in filter("winner"?).
http://www.lxforums.com/board/showthread.php?t=14140
Spend your $200-$400 else where.

[rico013]

Hey mikel

question for you. I made a log ref: kr wot. i am about to almost 7 deg wot. should i add more fuel. i am running -3 degree on the wot timing table. can i email you the data log and probably you can tell me what to do.. i just need a email to send it to. also i forgot we are running 87 octane
thanks once again for the help. rico

[Mike_Levy]

Don't add fuel. Adding garbage fuel will just make the knock worse.

[rico013]

tell me about it. i just cant believe our dept went with 87 with these vehicles.. thanks mike

[Mike_Levy]

Be happy you have a nice Charger to drive. My boss just gave me a Pearl White Sentra for patrol. Its like driving Barbies econobox.

[rico013]

lmfao "barbies econobox" nice... i know the feeling my first dept in ny was like that. where do you patrol at?

[Mike_Levy]

I'm out on Long Island, in Manhasset.

Not a cop, private security.