SSmokin99

iTrader: (7)

I'll start off by saying I'm very disappointed and I know #'s don't mean sh*t, but this is extremely low. I made 400/390!!!! The tuner thinks the GMMG is choking up the set up. Prior to this with bolt ons I made 340/350. Thoughts?

Ed Curtis SS cam
Ed Curtis ported LS6 heads
lid
LS6 manifold
FTRA
UD pulley
QTP LT's
TSP ORY
GMMG
LS7 clutch
42lb injectors

itsslow98

iTrader: (18)

LS1 intake manifold?

scotty2000ss

iTrader: (2)

What gears and trans?

SSmokin99

iTrader: (7)

LS6 manifold and 6-speed manual. Stock gears

scotty2000ss

iTrader: (2)

Did you tell Ed what the results were?

SSmokin99

iTrader: (7)

No, but what would he do about it? For what it's worth I also installed new NGK TR6 plugs with new MSD wires.

scotty2000ss

iTrader: (2)

He can point you in the right direction. IMO, the GMMG isn't the issue. Maybe the numbers are accurate... Ed will be the go to guy

SSmokin99

iTrader: (7)

I can tell you now, with that H/C combo there is NO way those #'s are accurate. That cam alone should put you at 400rwhp with stock heads.

HCI2000SS

iTrader: (2)

This sounds a lot like my car on the dyno, but my traps at the track tell me that I'm actually making that extra 40-50 hp that the dyno didn't show. What does the tune look like?

DannoWS6

iTrader: (5)

What kind of dyno?
How far did you spin it to?

Any more specs on H/C? Those heads milled at all, stock gasket?
If you can post a graph it will tell us a lot more. What did you gap the TR6's at?

I agree the numbers seem a little low, but don't want to speculate without more info. I also agree that with LT's, ory, gmmg, you should not have any exhaust restrictions yet.

HCI2000SS

iTrader: (2)

Yeah that exhaust should definitely not be a restriction much. Unless something is inherently wrong with the install or components of the head/cam setup, I'm thinking it might be more tune related. Mine was all out of wack (and by a very reputable shop to boot) and since the retune the car is very noticeably faster. I'll have new dyno numbers very soon to confirm, and it will be on the same dyno as well

redtan

iTrader: (5)

Are the previous bolt-on numbers from the same dyno and on a similar type of day weather wise?

60rwhp doesn't seem to be *that* bad of a gain from a medium cam and ported heads especially if you still have the stock MAF in there. I'd look more at the gains on the dyno or trap speed rather than the final number on a piece of paper.

Kingc8r

iTrader: (21)

I'd expect more than that AJ especially with ported heads done by Ed. Something is definitely amiss.

What size Longtubes?
All time up stuff done?
Injectors new and clean?
Stock Maf?


I'd expect 450-470 with that H/C and a Fast added in a M6

My boy Adam has the SSHT with stock 243s and a Stock Fast 102 with a M6 and he put down like 429hp.

SSmokin99

iTrader: (7)

I'll post the graph in a couple hours.
Dyno jet and it was spun to about 6500rpm. Not sure if the heads are milled, but yes I used OEM gaskets and the plugs I'm not sure what they're gapped at since the installer is the one who installed them.
Well, the tuner wanted to MAF tune my car, but since the previous tune was done in open loop he said he had no choice, but to do it that way since I didn't have any working 02's.
No, the previous #'s are from another shop/dyno.
Ryan, that's the same thing I'm thinking. Something is definitely not adding up here. LT's are 1 3/4, injectors are brand new, & yes MAF is stock.

vetteboy2k

iTrader: (5)

Something's off. Let's get it sorted out.

redtan

iTrader: (5)

Then the comparison is pretty pointless and I would not hold it against the new numbers as who knows how much of a hearbreaker the new one is over the last one.

Idk if I'd expect 470rwhp out of your setup, especially with smaller diameter primaries and a 78mm stock MAF. Bigger cam, FAST manifold, free flowing intake and bigger headers maybe.

Before you drive yourself nuts, check to make sure the tune is spot on and take it to a track to see what it traps. Till then, you're just pissing in the wind with guesses and random unachievable power expectations.

HCI2000SS

iTrader: (2)

I thought the before and after was on the same dyno as well. In this case I agree with others on taking it to the track first. This will tell the true tale

SoFla01SSLookinstok

The hp & tq are pretty close. What are the specs of that cam?

How does the car feel? Post that graph.

scotty2000ss

iTrader: (2)

I would think with the cam alone he'd be at 400rwp. But with heads???

SSmokin99

iTrader: (7)

Graph