Otherwise, Turbo it and I'm sure all the stuff you've done will be worth while.

I am changing the headers and doing the transmission upgrade so we will see. I have email uprev to have them take a look at it as well. The cycling just doesn't make sense.

I'll just put this out there...the tuners here aren't very VQ savy.

I say get a safe tune and gently drive her till your stateside. This place is a headache when it comes to mods and tuning

That's a very interesting looking dyno graph, I'm sure with some more tuning this thing is going to put down some great n/a numbers.


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Yes I agree I am going to find out why it's doing that and see what the problem is and fix it. First step is I am going to hook the pcv system back up cause the arc oil catch can has you plug the breather ports on the valve covers and the intake manifold so that's the first step.

What does a stock 370 put down on that dyno?

I seriously doubt that it has anything to do with the pcv system. That dyno chart looks like the computer's confused as hell. I'd like to see what Uprev has to say about it. Don't get discouraged yet. You've done something nobody else has, of course it'll take some time to get the tune dialed in.

Someone fly Seb from Specialty Z over there to handle this and he'll be good.

I have emailed uprev and sent the pic of the chart and I will wait to see what they say. I am not discouraged yet I just want to figure out why so if anyone else sees this problem they know what to do to fix it

You should also ask the tuner what other Zs put down on their dyno to have a better perspective regarding your numbers.

The only NA Z that had more hp here in hawaii was 306hp.

Did you get your tune straightened out?

Not yet. The tune that I am going to try next is the one I received from uprev instead of the one that the tuner made here in hawaii. I am still working on it.

this wait is killin me

Me too. I'll bet it puts up much better numbers with a good tune. Whatever that was on the dyno sheet was terrible. I'm sure Uprev will get it sorted out.

Uprev has advise me to go to a dyno jet instead of the dynapack so I am going to try it on that. I am waiting for a couple of parts to come in as well.