Tuning help?
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Senior User
Joined: Jan 2003
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From: Balfour
Tuning help?
I noticed my 390 4v performs alot better when its in the minus 10-20 degree range outside....
I was wondering how I could go about tuning the carb etc. to produce this kinda performance when its 35 degrees outside??
Or is this impossible without the cold denser air?
I was wondering how I could go about tuning the carb etc. to produce this kinda performance when its 35 degrees outside??
Or is this impossible without the cold denser air?
Lead Driver
Joined: Apr 2001
Posts: 6,175
Likes: 21
From: Texas
Simple Physics: cold air is more dense.
At those temps, it is probably quite noticeable. I never see temps that low, and I can still feel the difference in my car.
The only way to get a similar boost at average temperatures is forced induction or use of higher octane fuels.
Not to say that your carb is completely optimized. But, if it were, you'd still see a boost by funneling in cool air.
They do make some fuel cooler setups now, that are relatively simple. But, I don't imagine thay make near as much difference as having the cooler or more compressed air.
At those temps, it is probably quite noticeable. I never see temps that low, and I can still feel the difference in my car.
The only way to get a similar boost at average temperatures is forced induction or use of higher octane fuels.
Not to say that your carb is completely optimized. But, if it were, you'd still see a boost by funneling in cool air.
They do make some fuel cooler setups now, that are relatively simple. But, I don't imagine thay make near as much difference as having the cooler or more compressed air.
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