Thread: Guesstimate on power, transmission safety?

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  1. #1 Guesstimate on power, transmission safety? 
    SE Level Member USonuMabeaCh's Avatar
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    So I'm just curious, with the mods listed in my sig, what kind of ballpark should I be looking at for power? I will be getting it dyno tuned in a few weeks or so, but my curiosity is getting the better of me, I was guessing somewhere near 300 at the wheels?

    Do yall think higher, lower?

    And secondly, do you think it's generally safe level for the trans? Or should I start saving up for input shafts?
    02 40th GTP 2dr SSEI IC ZZP system with 3.2" Wizaird CAI Transgo SK SD headers aeroforce w/WB 1.9s over kill tune | 70 Skylark 455 bored to 462 Stg 1 iron heads ported 270 in 205 ex spx intake 870 street avenger 2" headers 3" xpipe flowmaster 40's full msd ign custom cam 540 hp 560 lbft TH400 2800 stall hotchkis susp DTS 12 bolt 3.42 rear
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  2. #2 Re: Guesstimate on power, transmission safety? 
    Turbo is the way to go. BillBoost37's Avatar
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    You could look up similar mods that have been posted with dyno tunes. Off the cuff I am seeing a 3.2 IC'd with 1.9's and headers for hard mods then the tune to loosen stuff up. At the crank, you could be seeing around 300 hp possibly. Take off about 25% for transmission/axles and that's about what would be to the wheels.

    Transmission really depends on your driving style. There are people who can have a trans be reliable on that power and there's some that can't keep a trans together on stock power. The key to remember is this is not a good transmission when modding or even driving a stock power level like you stole it. Me.. I had S1X cam, Gen V, N*, headers and could stretch a 7/8 chain in under 5K miles. Most of the time much less. As I added power the transmission became more and more of an issue.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  4. #3 Re: Guesstimate on power, transmission safety? 
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    I'm guesstimating whp is around 240-250 and torque being slightly higher since these motors with the blower love making torque down low. before my stock trans (was tuned though) chain stretched and snapped (was only cruising when it happened and not while racing) I prolly had 150-200 track passes on street tires (no drags or radials) with no long burnouts at all. prolly only spun long enough to clean the tires whenever I go to the track and skipped the waterbox. ran plenty 2.0-2.10 sixties.

    edit this was with varying pullies from 3.2" to 3.4" running 25-28* of timing with alky injection
    old setup-Z7 Turbo Kit w/T66, A2A I/C, stock cam & valvetrain/LS1 MAF/Ported 99TB/PowrTuner/AFC/Devils Own/LS1M Scanner/PRJ FP/42# Injs=12.3@118mph street tires -
    (Sold)BACK TO M90 Vs cam w/3.5" pulley/meth/25* timing+bolt-ons
    01 Z28 A4 HP-self-tuned, LTs, FTRA, 3600stall 12.3@112mph
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  6. #4 Re: Guesstimate on power, transmission safety? 
    SE Level Member USonuMabeaCh's Avatar
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    I tell you what, 2nd gear is kinda scary now.
    02 40th GTP 2dr SSEI IC ZZP system with 3.2" Wizaird CAI Transgo SK SD headers aeroforce w/WB 1.9s over kill tune | 70 Skylark 455 bored to 462 Stg 1 iron heads ported 270 in 205 ex spx intake 870 street avenger 2" headers 3" xpipe flowmaster 40's full msd ign custom cam 540 hp 560 lbft TH400 2800 stall hotchkis susp DTS 12 bolt 3.42 rear
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  7. #5 Re: Guesstimate on power, transmission safety? 
    Killa Bee Scottydoggs's Avatar
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    Quote Originally Posted by USonuMabeaCh View Post
    I tell you what, 2nd gear is kinda scary now.
    kinda nice when 2 nd gear has a reason for life. add boost, second gear now works lol

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  8. #6 Re: Guesstimate on power, transmission safety? 
    GXP Level Member GTPpower's Avatar
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    Depends how your shifts are set. I've seen 14 second cars break input shafts because they had the shifts too hard.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  9. #7 Re: Guesstimate on power, transmission safety? 
    GT Level Member brettstoner's Avatar
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    For 300 hp to the wheels I am running E85, higher compression from top swap, VS cam, 3.0 pulley, and all the complimentary add-ons. My trans didn't last even when I was N/A. LOL. I am guessing 260 to the wheels.
    04 GP GT- top swap, VS cam, 2.8 pulley, E85, headers, 60 injectors, TEP 3:29 trans, Racelogic Traction Control, ZZP dyno tuned.
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  10. #8 Re: Guesstimate on power, transmission safety? 
    SE Level Member USonuMabeaCh's Avatar
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    Well the funniest part, is that I forgot that I was leaving traction control on, 1st gear is about worthless atm
    02 40th GTP 2dr SSEI IC ZZP system with 3.2" Wizaird CAI Transgo SK SD headers aeroforce w/WB 1.9s over kill tune | 70 Skylark 455 bored to 462 Stg 1 iron heads ported 270 in 205 ex spx intake 870 street avenger 2" headers 3" xpipe flowmaster 40's full msd ign custom cam 540 hp 560 lbft TH400 2800 stall hotchkis susp DTS 12 bolt 3.42 rear
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  11. #9 Re: Guesstimate on power, transmission safety? 
    SE Level Member derpyimp's Avatar
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    My '05 Impala needed a new trans at 130k miles even though it's NA and spent its whole life at well over 4000 feet altitude, so it was probably putting less than 140 hp to the wheels anyway. Just goes to show that our transmissions can crap out at any time really. If I were you, I'd just save for a built trans for when your current one inevitably dies.
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