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Boosted LT1's need some suggestions

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Old Nov 9, 2006 | 08:30 PM
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Default Boosted LT1's need some suggestions

First off i have a 93 lt1 with the OFI single kit im looking into some transmission help. I have a stock 700r4 and dont really know what i need to be able to handle around 500-600 hp that i plan on having later on. I will eventually run about 12lbs of boost once i finish the forged motor. Ive looked at this site for stuff so far http://www.700r4l60e.com/store/customer/home.php?cat=19 im not gonna lie it looks cheap and gets the job done but im just trying to see what other lt1 users have for a built trans(i want to stay auto as well i know im going to need to do alot of work. So let me here what you think i should do or what you have done with your lt1's. thanks for any input

P.s Id like to stay with 700r4 since that why i save some money not having to buy a new trans as well along with the build.
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Old Nov 9, 2006 | 08:44 PM
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anything more then 550hp at the wheels and its going to break now and then.
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Old Nov 9, 2006 | 09:26 PM
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So your the one that Joel was making the OFI LT1 kit....I want to see some of your pics of that setup on the LT1
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Old Nov 9, 2006 | 10:27 PM
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yeah thats me i cant wait to get it back but i need start thinking about a trans any suggestions it or is that one on the website good enough to handle what im going to be doin?
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Old Nov 9, 2006 | 11:24 PM
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What size turbo are you putting on the OFI kit, which did you choose A/A or A/W ? I think if your gonna do the tranny on the cheap it probably won't last long with 550 to 600 rwhp without a substantial build-up. JMO
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Old Nov 10, 2006 | 12:00 AM
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off hand i think its a t67 and A/A it says it will handle that much i just dont have the funds for 2000 tranny because i know i will also need a new rearend and incase anything else goes as well. what other tranny options do i have or suggestions?
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Old Nov 10, 2006 | 03:26 AM
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Give Rodney at RPM Transmissions a call to see what he would suggest for you. Bob
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Old Nov 10, 2006 | 03:32 AM
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The 700R can take a beating.

Dont think that its going to fail immediatly, but it will eventualy.

www.performabuilt.com

Tony.
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Old Nov 10, 2006 | 10:04 AM
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You can buy a TH350 and have it race-built for less money than a simple overhaul on a 700R4. I broke 2 4L60E's at 500 rwhp before installing a $750 TH350. The TH350 has seen anywhere from 500 to 750 rwhp and I've been running it for 2 years, beating on it weekly, and it's been flawless.

Mike
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Old Nov 10, 2006 | 05:34 PM
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The Th350 bolt on wright???
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Old Nov 10, 2006 | 11:24 PM
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Originally Posted by Ari G
The Th350 bolt on wright???
I'm not sure what you're asking, but I'll try and answer. The Th350 has the same bolt pattern where it meets the block. Also, a TH350 converter will bolt to the LT1 flexplate. On the other end, if you use a long-tail TH350, then the stock driveshaft will work. I used a BMR trans crossmember and a B&M torque arm mount.
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