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Thread: 440 hp

  1. #1
    c5blue
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    Default 440 hp

    how money hp " the long tube headers " add to my c5

    am i close to 440 hp in engine with this stuff ?? as http://breathlessperformance.com says ?????


    votex ram air intake
    high flow power duct
    1030 cfm throttle body
    z06 intake manifold
    off road x pipe
    long tube headers ( ceramic coated )
    slp load mouth exhust
    160 thrmo.
    hpp.

  2. #2
    Member Don&Kelly's Avatar
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    I put on the Belanger long tube headers & got about 25 to 30 hp .. very high quality headers - I've seen 40 hp advertised, but I have never run in to anyone that I believed that ever got more that 30 hp ...

    Hope this helps


    Don & Kelly Davis
    2000 Red Coupe & 2008 Crystal Red Metallic Tint Convertible
    Lone Star Corvette Club

  3. #3
    BayouVette
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    I'd say more close to 375 hp that is on the engine. You would be about 320-330 rwhp. Thats what counts

  4. #4
    hawaii-5-lo
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    i would GUESS that your right around 400 t0 410(at crank)you started with 350hp so all the mods you listed v-ram,headers,etc,has to be more than 25 increase,so i will say 400 even,plus the torque curve is probably flatter also.i would also see if you can get the car scanned,you might need a little tuning.i have found out the hard way,leave the MASS AIR FLOW sensor stock.i ported the crap out of mine and im very lean at WOT,im lossing power because of this.i finally found a set of stock MAS ends that will be here next week.i was o.k. with just the screen removed,but after porting and removing the air foil,im lean.later,Todd.

  5. #5
    Member C5NGAGE's Avatar
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    Default 440 HP needs PCM programming

    It would look to me that you may be in need of the SVO 30 psi injectors and a good PCM tune to achieve the HP you are searching for. Most everyone that reaches 425+ HP had to do Heads and Cam to get there

  6. #6
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    I would recommend supercharging. Its not cheap but it is advertised on most sites I see to put you at the 450 mark. Give it a whirl if you got the cash!

  7. #7
    BayouVette
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    he's just asking if his HP on the motor would 440 with his current mods. I think some are getting HP on the motor confuse with RWHP which is the important number. With heads/cam or a supercharger he would be way more that 440 to the motor. I dont think currently you would be near 400. You probaly get half the horses that most products claim to give you. Heads/cams on an auto will give you around 400rwhp

  8. #8
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    You put a blower on and you'll see very close to 500 rwhp. My car did 517rwhp and I could have put in more timing and got more.
    2003 Black ZO6,MTI 427,Vortech T Trim, Blackwing,Fidanza Aluminum Flywheel, Clutchmasters Clutch,Borla Stingers, Kinesis K58 and K59 Wheels. 611.5RWHP, 560RWTQ.

  9. #9
    hawaii-5-lo
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    Originally posted by jak112460
    You put a blower on and you'll see very close to 500 rwhp. My car did 517rwhp and I could have put in more timing and got more.
    heck ya,
    thats awesome.i must do this.i still think with the mods he listed hes very close to 400(crank).but to get to 450,no doubt about heads and cam.get it on a dyno and see?aloha.
    Todd.

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