Thread: 4t65e tranny take

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  1. #1 4t65e tranny take 
    SE Level Member CoolblueGTP2000's Avatar
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    How much hp can 4t65e tranny take
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  2. #2 Re: 4t65e tranny take 
    Moderator dsmuts's Avatar
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    Depends on the trans. Some break on stock power levels some take 500 hp
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
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  3. #3 Re: 4t65e tranny take 
    I live here. 02NavyBlue's Avatar
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    Well I assume he means stock. No upgraded parts like input shaft or larger chain. As long as everything in the trans is good, no problems like a bad pcs, worn clutch packs with high mileage etc. stock should easily hold 300 HP at the crank, right? But after that you may need upgrades.

    I'm not positive on this though. Could be 350
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
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  4. #4 Re: 4t65e tranny take 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    It will hold whatever power you give it untill it fails.

    SMGPFC Member #1
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  5. #5 Re: 4t65e tranny take 
    Turbo is the way to go. BillBoost37's Avatar
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    As you've noticed from the variations in comments these transmissions aren't the most durable or reliable when you start putting power down. Some of that has to do with how you abuse it and if you remove the factory safeties that are in place to try and keep the trans from having issues.

    I had no problems killing a trans in short time (less than 10K miles) with just a few mods. Others can mod pretty heavily and their driving style affords them more time before grenading.
    I drink..so consider that when reading my posts.

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