Switching from 91 to 93 octane Timing!

[boostftw05]

Not sure if its just my computer but the search does not work for me. but when I bought the cobra it was tuned for 91 octane I have 93 here how much can I bump up the timing? it was set at 14* for the 91. Whats a good level to run at? not looking for the "safe" answer cause the car only gets run 1/4 mile at a time and not pushed hard for long periods.

Thanks,
Anthony C.

 

[98 Saleen Cobra]

How much boost are you running for 14* of timing?? Usually 15psi on 91 is safe and with 15psi about 17-19* of timing is safe with 15psi on a motor with 8:5.1 compression. For 93 what I've seen 17-18psi is safe with about 17* of timing.. I hope this helps. Again this is just all from my tuner but different tuners tune differently lol.

 

[boostftw05]

Haha thanks man its running 14 to 15lbs Ill up it to 17 to 18* also do you know if there is away to get a knock light on our cars? I was HUGE into tuning Evos people use to pay me to set there car up on the stock ECU. Ive got a wideband on order but needed to find out if I can see when the car detonates to know when to back on on the timing and on boost fuel table.

 

[boostftw05]

Double post this site is on crack right now!

 

[98 Saleen Cobra]

Haha thanks man its running 14 to 15lbs Ill up it to 17 to 18* also do you know if there is away to get a knock light on our cars? I was HUGE into tuning Evos people use to pay me to set there car up on the stock ECU. Ive got a wideband on order but needed to find out if I can see when the car detonates to know when to back on on the timing and on boost fuel table.

Yea you can definatley run more timing. I would also consider getting a retune to make sure your A/F ratio is good when you do up the timing. As for knock sensors, if you have an 04 Cobra which I'm assuming you do they didn't come with knock sensors. I dont' know why they didn't. As for getting them I'm not to sure if you can install them. I know on my block I have knock sensors.. Typically the max timing I've seen people go to on these cars is like 23 and that's a shit ton in my book.

Double post this site is on crack right now!

yes this site is effing up hard core right now. It's rather annoying lol. :beer:

 

[boostftw05]

Yea you can definatley run more timing. I would also consider getting a retune to make sure your A/F ratio is good when you do up the timing. As for knock sensors, if you have an 04 Cobra which I'm assuming you do they didn't come with knock sensors. I dont' know why they didn't. As for getting them I'm not to sure if you can install them. I know on my block I have knock sensors.. Typically the max timing I've seen people go to on these cars is like 23 and that's a shit ton in my book.



yes this site is effing up hard core right now. It's rather annoying lol. :beer:

Yeah man its crazy right now! Ill get it taken to a local for another good dyno tune but ill just bump the timing up for now. Thanks again bud!

 

[98 Saleen Cobra]

No problem :beer: