Max WOT timing for 91 octane?

[DitchTehFish]

What do you guys think?

 

[foofinator]

Well for 93, 23-24 seems to be the most people are running, and that's aggressive. So maybe 20?

 

[knowfreed0m]

18

 

[maddrabitt]

Ive got 21.5 in the tune Shawn gave me. No problems for the last year and a half. 91 octane.

 

[DitchTehFish]

Ive got 21.5 in the tune Shawn gave me. No problems for the last year and a half. 91 octane.

How ironic, Shawn is going to tune my car on Monday.

 

[maddrabitt]

Nice, dont let Daves smack talking make you nervous. Shawns always cool with me, even when I bother him with stupid questions.

 

[sambandit]

Kinda depends on your elevation but I run 22-23 degrees.

 

[DitchTehFish]

Kinda depends on your elevation but I run 22-23 degrees.

It will be dyno tuned ~150 feet above sea level. I live ~800-900 feet above sea level.

 

[DitchTehFish]

Ive got 21.5 in the tune Shawn gave me. No problems for the last year and a half. 91 octane.

I'm going to tell Shawn to set MAX timing at 20*. I want my A/F ratio to be 11.8 from about 3K to redline. :thumbsup:

 

[2814v]

I am running 18 under 4000 and 20 4000 to wot, a little conservative but zero pinging.

 

[bender460]

Kinda depends on your elevation but I run 22-23 degrees.

Could you explain please.

 

[maddrabitt]

damn man, too bad your appt is at 10 on monday. If it were a little later Id cruise up to watch

 

[sambandit]

Could you explain please.

I say elevation plays a factor because of uncorrected numbers. When I was making 508 hp corrected here, it was only 405 uncorrected, so I could take more liberties with the timing because I was actually making alot less actual HP. Is that confusing or does it make sense?? lol

 

[bender460]

Kinda confused. I have read that the octane rating of fuel increases as elevation increases?? I can only get 91 here in MT but I'm near or above 5500' DA at the track. So you think I can run 23*-24* timing?

 

[DitchTehFish]

damn man, too bad your appt is at 10 on monday. If it were a little later Id cruise up to watch

I actually wish it was right when suprior opens(8:30), but I know Shawn loves his sleep. :lol: I'm hoping it won't be blazing hot at 10 AM.

 

[maddrabitt]

I hear you on that one. When Shawn tuned my car last year it was blazing hot in the middle of the day. Contrary to what some will tell you, he was actually there waiting for me when I pulled up.

 

[DitchTehFish]

I hear you on that one. When Shawn tuned my car last year it was blazing hot in the middle of the day. Contrary to what some will tell you, he was actually there waiting for me when I pulled up.

What were you mods and numbers when he tuned your car?

 

[maddrabitt]

2.8, catback, x pipe, pos densecharger. came out about 450rwhp/460rwtq in the blazin hot. said i would pick up a little more when I got rid of the densecharger. not the strongest, but plenty good enough. Never had a chance to go back once I swapped CAI and on a cooler day.

 

[DitchTehFish]

2.8, catback, x pipe, pos densecharger. came out about 450rwhp/460rwtq in the blazin hot. said i would pick up a little more when I got rid of the densecharger. not the strongest, but plenty good enough. Never had a chance to go back once I swapped CAI and on a cooler day.

Yep, heat has a big affect on numbers. Also, the densecharger is a POS. ;-) Anyhow, what did he set your A/F ratio at? I'm thinking 11.8 to redline. :shrug:

 

[maddrabitt]

it was in the mid 11's. Dont remember exactly, but it was 11.x