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Jon P. Kofod (95f355c)
Member
Username: 95f355c

Post Number: 675
Registered: 8-2001
Posted on Thursday, May 29, 2003 - 9:44 pm:   

Jim,

I have had the same problem with my 95 Challenge car which has a similar Tubi exhaust and header system (GT3 Race System). While the headers from Tubi are far superior to the stock ones on a 355 (no cracking problems) they produce much more heat. You need to wrap the alternator harness in some sort of heat protective wrap and also put a supplemental ground strap on the alternator.

In addition you might want to consider having a naca duct cut into your underbody panel to provide additional cooling. I know it's a street car and you might be reluctant to cut a hole in the underbody panel but it will save you a lot of headache.

Lastly, don't ever buy the refurbished or rebuilt alternators that FNA sells for $400. They plain suck! I have bought one last year and the damn thing failed after three track days. The pulleys are a weak spot on them. Buy a new one.

Regards,

Jon P. Kofod
1995 F355 Challenge #23
Website: http://neverlift.homestead.com/flatout.html
jim navarro (Jplotus)
New member
Username: Jplotus

Post Number: 3
Registered: 5-2003
Posted on Thursday, May 29, 2003 - 8:35 pm:   

I recently purchaed a 98 355 f1 with tubi headers and exhaust . The prior owner told me that the car frys alternators due to the heat caused by the headers. I counted 3 alternators in his service records in 17000 mils. Does anyone have any suggestions on how to keep from frying these alternators. Thanks

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