Hey Z1. ETA on those headers?

Supahonky

Yes, 298 was on a 90+ day also. I remember reading on these forums somewhere that you get the most out of your first mod. Then after the first then add 5hp for each other. Guess that would be about right. Think that's what it said. Maybe give or take a few words. ;-)

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DEpointfive0

Looking back at it.
The LiteSpeed exhaust is light... And that's it, it ISN'T a power maker... No one really has proof and reports of that.

Also 98+ degrees in humid NC is probably what killed your dyno the most.


Again, all dynos read different, and you're looking for the CHANGE in HP, and on the same day preferably.
Also, changing that many parts at once really limits the way you can quantify which part gives you HP.



Lastly, this hype over these damn headers started with Mike, he got 342WHP with these headers and a Z1 intake manifold mod, which I do not believe Z1 has disclosed. What it really is, is shaving down the walls of the manifold to make them bigger. Also, god knows what tricky shít Z1 has done with their dyno or whatnot, (I don't mean to discredit them, just sayin'), but take it with a grain of salt... Also rear wheel weights will effect WHP numbers. So keep that in mind.

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brucelidat

I didn't know about their manifold. But yes, we need on z1 numbers which is why you and i are both waiting for some more reviews and dynos.

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Baer383

Z1 dyno reads as close to real world as you can get,my cars have been on that dyno several times and I have been right there when John is doing it there is no FUNNY business going on.

I'm not discrediting you I'm just saying you should'nt be saying!!!

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2013 ZL1

754 rwhp 747 rwtq