ray1979

Here is a video of my corvette on the dyno. I am going to put a full exhaust on it and wanted some before and after numbers

84 corvette dyno 3rd pull:

aliceempire

iTrader: (14)

What mods have you done to it already? I like the matching red intake btw.

ray1979

I have trick flow heads powermax 2040 cam and first tpi intake

aliceempire

iTrader: (14)

Must be a stingy dyno. The dyno my car was on is reportedly hard to give up numbers but I'm running iron L98 heads and unported tpi and pulled similar curves. I would figure yours would've been way ahead of mine. Or do you think your exhaust is that big of a restriction?

ray1979

I do think the exhaust is holding back 50hp but I think my cam is my biggest restriction.

aliceempire

iTrader: (14)

Granted, I don't know what your heads are capable of but looking at the cam specs I'd agree with you that it's probably too small to take advantage of those heads. It'll be interesting to see the after with new exhaust.

ray1979

Yes. I am toying with the idea of swapping the cam. I will install the exhaust then dyno to see what that brings then I think I will replace the cam this winter

Gritz-n-Gravy

did you change the intake to tpi 84 vettes had tbs my first car was a 84 vette
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my current car

ray1979

Yes I changed the crossfire to tpi

ray1979

update number after long tubes and corsa cat back

289.60hp and 378.21 TQ

VincentZ28

iTrader: (2)

Now the heads are holding you back. You should be making well over 300whp at least at 5200

ray1979

I think its the small cam. I have aftermarket heads

aliceempire

iTrader: (14)

Vast improvment from the exhaust. No doubt that held you down.

But he's peaking at 4500-ish now. Sounds like the call of the LTR's. You'd know way sooner than me but I think the runner length is keeping him down. Hard to say with a FIRST though, I thought they had a higher rpm range.

VincentZ28

iTrader: (2)

They do. He can peak out at 6000. What's the specs on the cam and what heads?

ray1979

The heads are Trick Flow 23 Degree 64cc and the cam is a powermax 2040 formally compucam I think with my mods that cam is to small and holding me back about 40 hp as well as a few hundred RPM

VincentZ28

iTrader: (2)

The first base flows 300cfm. The runners are 1.80 open. Those are way bigger than Edelbrock runners at 1.65.