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Old Jan 17, 2002 | 07:58 AM
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Power Questions

Big Green 99 f-250 Supercab 4x4, 4.30 limited slip, 5.4 AT:

I am considering a Generation 2 cold air induction and a Gibson exhaust. Anyone have any personal experience with how much or how little these two products add to the power and performance. Your advice would be greatly appreciated.
Tuna
 
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Old Jan 17, 2002 | 06:11 PM
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Although I don't have personal experience with them, both mods should help performance. Speaking of performance, did you put 4.30 gears in your truck or is that a typo?
 
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Old Jan 17, 2002 | 06:20 PM
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The Gen II didn't help much nor did the exhaust. BUT it looks good!
 
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Old Jan 18, 2002 | 07:06 AM
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Power Questions

Big Green 99 f-250 4x4

Yes it was a typo, 4.10 gears if I'm not mistaken, Thanks for the advice, I won't spend the money there if noticable changes can't be had. What about removing the fan from the motor and installing an electric one? How much horse am I losing with the stock one still on?
Thanks, Tuna
 
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Old Jan 18, 2002 | 08:04 AM
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[updated:LAST EDITED ON 18-Jan-02 AT 09:12 AM (EST)]I hear, close to 40HP overall. Take a look in the V10 forum under a topic called "Ever heard or used one of these?" There is a web address to a company that markets a fan clutch. Read the replies and visit the site and judge for yourself.
 
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Old Jan 18, 2002 | 12:00 PM
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Old Jan 19, 2002 | 01:46 AM
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>Yes it was a typo, 4.10 gears if I'm not mistaken

Too bad. I bet a 5.4 w/4.30 gears would scream! :-)

Are you building a hot-rod or do you use the truck for "work" mostly? If it's a "work" truck, you might want to reconsider the fan replacement. Moving a heavy load at a slow speed can build temps fast. Electric fans may not provide the necessary airflow to keep everything cool.
 
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Old Jan 19, 2002 | 06:40 PM
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Expect 10-20 HP from the intake and exhaust mods. The problem with the 99's is that they are only 235 hp not the 260 version.
 
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