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HD Upgrade

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GP04gt1

Post subject: HD Upgrade

Posted: Sun Jun 22, 2008 1:46 am

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What is needed for a 280-320WHP GP to not blow up? 15/16 chain? etc?

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05 Bleen - GTP wheels, Pirelli tires, tinted tails and reverse light bar, HID's, more to come.....
2004 WJ - Mods in progress...

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Mater

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Posted: Sun Jun 22, 2008 3:31 pm

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what is currently done to the tranny?

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

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GP04gt1

Post subject:

Posted: Sat Aug 09, 2008 8:37 pm

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Whatever GM did from the factory

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05 Bleen - GTP wheels, Pirelli tires, tinted tails and reverse light bar, HID's, more to come.....
2004 WJ - Mods in progress...

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Kyle_99_gtp

Post subject: Re: HD Upgrade

Posted: Sun Aug 10, 2008 3:20 pm

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GP04gt1 wrote:

What is needed for a 280-320WHP GP to not blow up?

about $2,500 .

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GP04gt1

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Posted: Sun Aug 10, 2008 5:48 pm

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NO no no!

I just need parts, I have a race transmission shop at my disposal

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05 Bleen - GTP wheels, Pirelli tires, tinted tails and reverse light bar, HID's, more to come.....
2004 WJ - Mods in progress...

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Mater

Post subject:

Posted: Sun Aug 10, 2008 6:22 pm

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Well here is what I have
4340 input shaft
Hardened pump shaft
3.29 single chain (well thought it was installed but someone forgot to I pissed)
Hardened 4th gear clutch shaft
Raybesto green cluchess and bands
4T60-E input & 3rd gear reaction drum
Input and 3rd gear improved ratcheting sprag gear
Gun drilled output shaft
Trans-Go shift kit
New solenoids

Now you can get a HD conversion but it is really unnecessary the stock GT diff is not that weak and the GTP diff is only marginally better also the GTP diff and half shaft weigh more

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

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StreetShaker

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Posted: Sun Aug 10, 2008 6:28 pm

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From what I've read else where, people use Bonni SSEi tranny parts

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