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Final Drive and Power gains

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Old Jul 2, 2006 | 03:07 PM
  #41  
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bmac03z
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From: georgia
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Originally Posted by fern14
well seeing that I have a 5at with the 3.9 gears, I will tell you that your numbers look good but not quite reality...makes sense on paper but thoery is nothing like reality....my car pulls hard from 90 to 140 and i cut off after that so i dont know what the top speed would be....and my friend with his rev up with same mods as me with about 10 hp more was 1 car behind me....so here is some testimonial from reality based evidence ...something to think about besides fancy numbers....but atleast you are going about it logically...thats what counts instead of baseless claims which spread like a virus on these forums....helldorado and sentry know their ****...i have been watching their posts...good info
So did you replace the entire diff or just the gears? I read somewhere on here that 350evo sells the entire pumpkin with the 3.9 in it but I didn't see it on their site. Did you just buy a used pumpkin off a wrecked 6MT?
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Old Nov 1, 2006 | 04:53 PM
  #42  
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I currently have a 5at and am going to get the 6mt pumpkin swap..but the guy who has a pumpkin available has a base model, which means no LSD. Am I crazy for considering the swap still? (i plan on adding a 100hp shot of nitrous later)

Last edited by ZLadie2000; Nov 1, 2006 at 05:49 PM.
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Old Nov 1, 2006 | 06:59 PM
  #43  
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not crazy if you change out the diff
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Old Nov 1, 2006 | 07:13 PM
  #44  
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^^ you mean even if its open?
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Old Nov 1, 2006 | 09:26 PM
  #45  
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nah i was meaning if you changed out the LSD - sorry wasn't thinking when I was typing

Any newfound accelleration you get with the 3.5 FD, you'll lose about the same in your cornering ability with an open diff

but then again the stock LSD isn't really the greatest thing anyway, but better than open IMO
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Old Nov 2, 2006 | 05:47 AM
  #46  
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Contact Jim at Turbo Toys in Tampa, FL. His phone # is 813-695-6664. You can get the full 3.5 pumpkin with VLSD from him. I recommend you do a full swap instead of having to worry about obtaining the gears and pumpkin separately.

I just recently swapped my 3.3 FD for the 3.5. It was an entire pumpkin swap so it was straight forward. My cruise control still works. I have not taken it to the track yet since the swap so I'm not sure about getting out of the corners quicker. The RPMs stay higher after shifting on manual mode and my 4th/5th gears definitely pull harder than before.

There are a few forum members here who have done the swap also and by far, we all think this is a very worthwhile mod for 5AT owners.
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Old Nov 2, 2006 | 11:24 AM
  #47  
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Thanks guys!
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