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This is a discussion on Question within the Nitrous forums, part of the LSx Technical Help Section category; I obviously have an 06 GTO with a LS-2 and M6, But I have the Zex wet kit 75-125hp kit, ...

  1. #1
    Member 05gtoautoX's Avatar
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    2006 Pontiac G.T.O.

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    I obviously have an 06 GTO with a LS-2 and M6, But I have the Zex wet kit 75-125hp kit, now I have NGK TR6 plugs and a custom tune as well as pacesetter coated LTs 3 in.off road mid pipes, cat delete and full exhaust with LMII mufflers. Tonight I put it on the dyno-jet and was dissapointed with 426.7RWHP and 479RWTQ with all the above mods and the 125hp jets. Why are my numbers so low, do you think it's the tune or do you think ZEX is full of shit on their nitrous hp claims? I'm thinking it's the tune because I put down 354RWHP and 362RWTQ N/A and that seems low to me for an LS2 with some mods, I dunno what do you guys think? I seriously was expecting around 450RWHP and 500+RWTQ.
    Last edited by 05gtoautoX; 10-22-2008 at 01:10 AM.

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    Quote Originally Posted by 05gtoautoX View Post
    I obviously have an 06 GTO with a LS-2 and M6, But I have the Zex wet kit 75-125hp kit, now I have NGK TR6 plugs and a custom tune as well as pacesetter coated LTs 3 in.off road mid pipes, cat delete and full exhaust with LMII mufflers. Tonight I put it on the dyno-jet and was dissapointed with 426.7RWHP and 479RWTQ with all the above mods and the 125hp jets. Why are my numbers so low, do you think it's the tune or do you think ZEX is full of shit on their nitrous hp claims? I'm thinking it's the tune because I put down 354RWHP and 362RWTQ N/A and that seems low to me for an LS2 with some mods, I dunno what do you guys think? I seriously was expecting around 450RWHP and 500+RWTQ.
    We usually see right around 370rwhp with headers on the LS2's. That doesn't mean every single car that gets long tubes will put down the same. Did you do a baseline run prior to adding the headers?

    What was the bottle pressure at when you sprayed it? Was it a full bottle? What was your timing at? All of these can play a vital role in hp. Feel free to shoot me over a pm if you have any questions. Thanks.

    Nick

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    Member 05gtoautoX's Avatar
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    bottle pressure was about 850ish( a little low) had a little less than half a bottle. My timing is set at a static 20 degrees. I never made a baseline dyno pull before I started modding though. You think if I tried it again with a little more timing and a full bottle with about a 1000 psi. in the bottle it'd make a stronger pull?

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    Sent you a PM. Thanks.

    Nick

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