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will it support 500 HP?

This is a discussion on will it support 500 HP? within the External Engine forums, part of the LSx Technical Help Section category; will this setup support 500HP? ive got a 2002 Trans Am WS6, im planning on getting pacesetter coated LT's with ...

  1. #1
    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    will it support 500 HP?

    will this setup support 500HP?

    ive got a 2002 Trans Am WS6, im planning on getting pacesetter coated LT's with a 3 inch TSP high flow catted Y, and a magnaflow catback. ive asked this on another thread before but didnt get much of a response- someone said i think so, and the other said just get true duals- i dont want the dumps, and the bassani will require me to make my own pipes from the headers

    so what do you think? pacesetter coated LT's with a 3 inch TSP high flow catted Y, and a magnaflow catback

  2. #2
    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    by the way- i wont be making 500 HP for a long time. i will eventually though. i was just wondering if i would be in need of a whole new exhaust system by that time.

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    Member M6HUGGERSS's Avatar
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    millenium yellow
    2002 corvette Z06

    you should be fine.

    so when do the real HP mods start?
    315rwhp 98 SILVER Z28 (3500lbs)- SOLD
    400rwhp 99 HUGGER SS (3375lbs)- SOLD
    340rwhp 02 YELLOW Z06 (3040lbs)

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    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    simple, when i get the cash $$$$ !!!! haha id do them now if i could.

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    Member M6HUGGERSS's Avatar
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    millenium yellow
    2002 corvette Z06

    so which route will you be taking ...?

    FI, N20, more cubes, H/C, TT, ???

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    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    in the future ill be getting Cartek 2x heads and cam, stall convertor at about 3200, 3.73 gears, and a few other items to complement the setup. i should be just north of 500HP. im following the same route my uncle took with his 98 C5. hes got 535HP, so im hopeful.

    im not too into forced induction or nitrous

  7. #7
    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    anyone else have any knowledge of this please??????

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    Grand Imperial Wizard Sarge's Avatar
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    Fair question. If I understand what your asking here...."Will my bottom end handle 500HP?".....No. Yes. Maybe. Sorta. LOL.....seriously...
    You ever look at the OEM rod bolts on a LSx? 3/8"....that be small and they are not built for it. So that is gonna be the first to go and take your engine with it. To get to 500HP (450RWHP +/-) you gonna get some serious intake/TB/Tune/Heads/Valves/Springs/Cam to get there.....then those lil pecker GM Rod Bolts gonna go on you....so build the damn engine front to back and top to bottom and go have some fun. I have seen so many H/C guys blow those stock bottom ends.....just not worth it....you can budget and have fun with a nice little cam/heads setup....but not at the HP your talking about.....put down 380-400RWHP and have a blast....over that and your talking trannie/rear end/clutch/bottom end issues.....IMHO of course...
    This is my signature. It is mine. Nobody else has one like it.

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    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    well, i know i have to do some sort of build up, but im mostly talking exhaust. is 3 inches enough to flow 500HP worth of air through, without it being too much of a restriction? maybe 3.5 inches (i havent seen any though)

    i will definetely build the motor up though, i dont want any issues later. my goal is to build a car capable of being a DD that will blow the doors off most cars. it wont be a DD, but it will be able to be one

  10. #10
    ban-one
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    yeah your 3 inch exhaust will handle the hp

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    Member tav8ws6's Avatar
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    Sunset Orange Metallic-M6
    2002 Pontiac Trans Am WS6

    alright! thanks everyone

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    red
    1999 Camaro SS

    I would think that the diameter of the primary tubes would be the most important factor here, like 1-3/4" minimum for 500Hp (and that is 500 Hp at the flywheel).
    '99 Camaro SS; 6-spd, LS2 402 stroker short block, PP stage 3 heads, GMS MAF, 244/248 cam, FLP headers, Borla catback, 4.10 gears, LS6 intake, 39#/hr injectors, Pro 5.0 shifter, subframe connectors, Comp Cams 1.85 rr,
    Best ET: 12.23sec (2.000sec 60'), trap spd:117.5mph, with the LS1 engine.

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    Member Huskerz1's Avatar
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    Quote Originally Posted by Sarge View Post
    Fair question. If I understand what your asking here...."Will my bottom end handle 500HP?".....No. Yes. Maybe. Sorta. LOL.....seriously...
    You ever look at the OEM rod bolts on a LSx? 3/8"....that be small and they are not built for it. So that is gonna be the first to go and take your engine with it. To get to 500HP (450RWHP +/-) you gonna get some serious intake/TB/Tune/Heads/Valves/Springs/Cam to get there.....then those lil pecker GM Rod Bolts gonna go on you....so build the damn engine front to back and top to bottom and go have some fun. I have seen so many H/C guys blow those stock bottom ends.....just not worth it....you can budget and have fun with a nice little cam/heads setup....but not at the HP your talking about.....put down 380-400RWHP and have a blast....over that and your talking trannie/rear end/clutch/bottom end issues.....IMHO of course...

    Sound advice Sarge. I hope to be a shade over 400rwhp and have some fun. Wanna get a short block on the engine stand just in case tho.

  14. #14
    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by Doc99SS View Post
    I would think that the diameter of the primary tubes would be the most important factor here, like 1-3/4" minimum for 500Hp (and that is 500 Hp at the flywheel).
    Thinking that most any LS1 header is that size.

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    Junior Member MNR-0's Avatar
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    BLACK
    2004 Monaro

    I would think not. Single 3" catback will not flow 500rwhp, not even 3.5". Dual 3" catback 1 7/8 headers and 3.5" CATS will though.

  16. #16
    ban-one
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    headers and 3 inch single cat back will flow 500 rwhp. with other mods of course

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    Junior Member MNR-0's Avatar
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    BLACK
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    Quote Originally Posted by ban-one View Post
    headers and 3 inch single cat back will flow 500 rwhp. with other mods of course
    Hmmm. Just checked my pipe flow theory. Vizard says 2.2xFWHP in CFM. So thats 1200CFM. A single 3 3/4 pipe will JUST flow that. A dual 3" will flow 1483CFM, dual 2 1/2 1005CFM.

    In theory anway, a single 3" pipe won't flow 500FWHP. He needs dual 3".

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    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
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    Click for full size


    Closed it made 520 RWHP.
    Open it made 531 RWHP.
    402 LSx

    3" non-mandrel bent duals with Magnaflow muffler past the axle.

  19. #19
    ban-one
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    headers and a single will make 500 slp sells that kit that makes 400 im asuming whp and thats without head and cam

  20. #20
    Slow'er'Ass Mr. Luos's Avatar
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    Ignore anything SLP sells.
    Also ignore their power claims. They are badly bloated AND at the flywheel.

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