CAM Gear settings for GT35
Originally Posted by Ted B
The +1/-1 setting for the 272s will give a more choppy idle than 0/0, but you should not have any stalling problems, especially if it is competently tuned.
For that combination, I would try 0/-1. If you have a very good means of tuning, you could try +1/-1 as well. By making changes to the intake cam position in this direction, you will realize a choppier idle, but increased peak torque and quicker spool. You should not lose any peak hp, and from what I've seen, you may actually gain a bit.
Originally Posted by Ted B
For that combination, I would try 0/-1. If you have a very good means of tuning, you could try +1/-1 as well. By making changes to the intake cam position in this direction, you will realize a choppier idle, but increased peak torque and quicker spool. You should not lose any peak hp, and from what I've seen, you may actually gain a bit.
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I have them set at -4,-2 power is nice, 380whp on a mustang dyno on 91 oct. I am looking at full boost by around 4800 so wanted to see if I can get better spool with sacrifice up top. More suggestions?
Originally Posted by LuxuryBroker
I have them set at -4,-2 power is nice, 380whp on a mustang dyno on 91 oct. I am looking at full boost by around 4800 so wanted to see if I can get better spool with sacrifice up top. More suggestions?
Originally Posted by LuxuryBroker
I have them set at -4,-2 power is nice, 380whp on a mustang dyno on 91 oct. I am looking at full boost by around 4800 so wanted to see if I can get better spool with sacrifice up top. More suggestions?
Regardless, I definitely wouldn't recommend that setting you're using if you want decent spool characteristics.
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The first being the intake the second the exhaust. What is the setting used for "decent spool"? I am not to savey on this as why I am asking for suggestions...
Originally Posted by FlyNavy
Woo Hoo I have my answer. I'll locktite those badboys to +1-1 and go from there. How do you see it affecting idle? I LIKE a nasty idle as long as it never stalls. Right now my car is set to idle high and rich to keep it smooth-I hate WATCHING the fuel spit out the exhaust when sitting still. I'd rather it be lean and low. You think I can have a non-stalling aggressive sounding idle and not run so rich? I'll be using a certified EMS tuner.
What EMS are you using? If you add some timing at idle it smooths out the choppy idle alot and gives you back a bunch of vacumn. Just be sure to taper the additional timing off back to zero by 1750 rpm or so.
That is what I did on my car and it's much smoother.
Originally Posted by LuxuryBroker
The first being the intake the second the exhaust. What is the setting used for "decent spool"? ...
Which turbo??
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using the piper ultimate ralley cams 265's with 11.5 lift on both in. and ex. , as far as the turbo it is as garret gt35, not sure on the specs, but can find out. all of the components are from the peak boost kit.
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yes I have crower springs and retainers. I really liked these cams on my stock turbo set up, not sure how they will do under this set up ... time will tell.