Dyno'd with the D1

***Ed Blown Vert*** · 06-01-2007, 02:51 PM

Best I could get was 548 rwhp 563 rwtq on 10#. I didn't gain anymore boost. But under the curve I gained quite a bit.

Blue line is the P1. Red line is the D1

Blew the plenum twice on the dyno

***Ed Blown Vert*** · 06-01-2007, 06:12 PM

I did have them weld the whole plenum and add two center supports. It held on the next two runs, but the hoses didn't

**DanWS6** · 06-02-2007, 12:45 PM

Damn.. that's the second car I've seen that happen to. Crazy.

**4tun8** · 06-02-2007, 11:47 PM

Red line is like a whole point leaner too though....something to take into consideration at that power level. A whole point could be 40hp, or it could be none, but there is a change in the fuel there.

**Packy** · 06-03-2007, 07:18 AM

Damn man I made 561 hp/544tq with a 346ci and a P1SC @ 9 psi... Something is up there. I think you are getting some belt slip or something. What are your IAT's and timing at WOT looking like?

***Ed Blown Vert*** · 06-03-2007, 07:31 AM

Originally Posted by 4tun8

Red line is like a whole point leaner too though....something to take into consideration at that power level. A whole point could be 40hp, or it could be none, but there is a change in the fuel there.

I don't trust the dyno's WB. I tuned with my wideband and theirs were a point off. My AFR was 11-11.5

We also dyno's my friends vette who also had a wideband. And his showed 1 point off too.

Originally Posted by Packy

Damn man I made 561 hp/544tq with a 346ci and a P1SC @ 9 psi... Something is up there. I think you are getting some belt slip or something. What are your IAT's and timing at WOT looking like?

Your telling me. If the powerband kept climbing, I could have hit 600. IAT's at the end of the run were 120*. timing is 18*.

Do you have a dyno sheet you can post? I want to compare the power under the curve.

**Packy** · 06-03-2007, 09:09 AM

Here is my last dyno sheet.

***Ed Blown Vert*** · 06-08-2007, 08:30 PM

No rpms, hard to compare.

Removed the 3.0 and installed the 3.2 pulley. Couldn't get the 3.4 installed, belt was too short.

Must still be slipping. When I get on it, I hit 10# right away, then very slowly I will hit 11# and thats spinning it to 6500.

Also IAT's go from 85* to 135* and this was on a very cool night.

Will pick up another belt and try the 3.4