winter tune supercharger
- Thread starter stanggt00
- Start date
jstreet0204
Active Member
With a safe tune you won't need one. If your tune is on the edge, you need to accomodate for winter gas.
wannabe2000GT
New Member
hehe i am working on getting another car keeping murphys law in mine i am sure since i put a supercharger on this thing that if i drive doing the winter months i am sure to total her hehe
thxs on the reply i was kind of thinking that after i write the post
hell i am off work today calling every shop i can find in the maryland area to get a dyno done no luck so far
thxs on the reply i was kind of thinking that after i write the post
hell i am off work today calling every shop i can find in the maryland area to get a dyno done no luck so far
Don 95Vert
Founding Member
Depends on who tuned it and HOW they tuned it. There are a lot of tuners out there still, that use the old school way of tuning by using fuel 'adders' and locking the timing in. When you do that, you are adding a static amount of fuel and different atmospheric conditions WILL affect the tune. Lots of tuners still use this method, because that's what they learned initially and because you get a lot more repeat business that way.
Tuned properly (properly in my opinion) is doing all the fuel changes in the base fuel table and calibrating the MAF transfer function to that and not locking timing, but letting load determine spark - this method will NOT require seasonal tunes because the tune is based on MAF data and the MAF measures the air mass (weight) and will calculate load. The air mass will vary if it's hot, cold, low or high BP, but the MAF will always measure this correctly. The only scenario I can see where you may want it checked at least is if it was tuned correctly, but either the fuel system or MAF were right on the edge as far as max capacity goes and it was tuned in the summer. Then in the winter, you'll make more power and go past the max capacity of either or both. Make sense?
Don
Tuned properly (properly in my opinion) is doing all the fuel changes in the base fuel table and calibrating the MAF transfer function to that and not locking timing, but letting load determine spark - this method will NOT require seasonal tunes because the tune is based on MAF data and the MAF measures the air mass (weight) and will calculate load. The air mass will vary if it's hot, cold, low or high BP, but the MAF will always measure this correctly. The only scenario I can see where you may want it checked at least is if it was tuned correctly, but either the fuel system or MAF were right on the edge as far as max capacity goes and it was tuned in the summer. Then in the winter, you'll make more power and go past the max capacity of either or both. Make sense?
Don
AmBo
Active Member
You bought the mongoose kit right? Ask Tim to send you a winter tune for your car. I get mine in tomo (woohoo!) so I'll be staring at the blower for a week. I can't wait to get it in the car! 
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