Hey guys. I am just curious as whats the most lbs. of boost an 03/04 cobra can run in so-cal with our 91 octane?
Thanks,
Thanks,
There are many factors. Also depends which power adder you're using however, generally its 18psi for 93 oct so in your case I would say 16ish.Hey guys. I am just curious as whats the most lbs. of boost an 03/04 cobra can run in so-cal with our 91 octane?
Thanks,
Thanks alot bro. This is good info. I was wondering about the adder also, im really glad you mentioned it. So basicly if i were using lets say ported eaton as opposed to kb the boost levels would be different? Is this correct?There are many factors. Also depends which power adder you're using however, generally its 18psi for 93 oct so in your case I would say 16ish.
Well, the bigger blower will provide more cfm than say over an eaton. Really you will need to get it tuned for 91 as every car is different. That way you and your tuner can see how far you can go with your A/F along with timing. :beer:Thanks alot bro. This is good info. I was wondering about the adder also, im really glad you mentioned it. So basicly if i were using lets say ported eaton as opposed to kb the boost levels would be different? Is this correct?
Gotcha. Thanks alot.Well, the bigger blower will provide more cfm than say over an eaton. Really you will need to get it tuned for 91 as every car is different. That way you and your tuner can see how far you can go with your A/F along with timing. :beer:
Ok, yeh bro thanks alot. I deffinately dont wanna screw up the engine. And 15 sounds closer to what i was thinking because when i had my 300zxTT the most safely on 91 was 14. I just asked because i wasnt sure if it varied by car.Most id do on 91 is 15lbs MAX! Especially on a ported or twinscrew set up... I learned the hard way and now i need a new motor.. Thing lots of tuners around here think 17lbs is ok on 91 which it is not cuz our 91 sucks... If u plan on running more boost do a 91/100 octane or staight 100 octane if you dont want to go through a motor..GL!
Well I'll throw this out. IT'S ALL IN THE TUNE!!!!! It's great that people want to blame thier motor blowing on 91 octane. Fact is there are quite a few people running 18lbs on 91 with no problems. I even know a guy out here that runs 21lbs on straight 91 octane. I believe his SN is NITROSCOBRA. Talk to him, I personally wouldn't run more than 18 but he has a ton of miles on his setup running 21lbs on 91 octane with a 3.4 whipple. There's no doubt that the motor is on the edge now, but he runs 91 just fine right now.
Just my .02
Well i had the best in So cal tuning mine... I bet running on 21+lbs on cali 91 that that car wont last too long.. All im saying is if you dont wanna go through a new motor (cuz we all know they are not cheap) then its always better to be safe than sorry..
I agree that it's better to be safe than sorry. I'm just throwing it out there that running over 16lbs is absolutely possible. BTW, I believe NITROSCOBRA has been running this setup for over 10k miles.
wow we need 93 octane her in cali
I have the best tuner in Northern CA (IMO), and he recommended I limit boost levels to those I mentioned earlier. Again, I have read lots of posts regarding people running a lot of boost on 91, but I wouldn't do it. The risk of a $10K repair bill warrants some restraint, at least for me.
Was he using meth (I mean for his engine and not himself)?