Results: QTP HVMC vs. Pacesetters
04-21-2007 | 04:54 PM
#1
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Results: QTP HVMC vs. Pacesetters Both 1 3/4", both on the same dyno and after no other changes. Only difference is it was 16º hotter for the latest run.
The lower end of the graph I was not quite full throttle when I started the run. Air fuel was the same, but the WB came out of the exhuast so I dont have it on here, it was ~12.9 across the board, but need to do a little work around 4400 rpm. No smoothing to take false torque peak out.
Right at 469/431
Gains (based on final old numbers, this graph just shows the low end increase):
8 hp
6 ft-lbs
26 ft-lbs at 3200
No to bad for a dyno that everyone bitches about being low
Also, FWIW, I dynoed with the Holley powershot, new paper air filter, and no filter, and saw ZERO changes, which is what I expected.
The lower end of the graph I was not quite full throttle when I started the run. Air fuel was the same, but the WB came out of the exhuast so I dont have it on here, it was ~12.9 across the board, but need to do a little work around 4400 rpm. No smoothing to take false torque peak out.
Right at 469/431
Gains (based on final old numbers, this graph just shows the low end increase):
8 hp
6 ft-lbs
26 ft-lbs at 3200
No to bad for a dyno that everyone bitches about being low
Also, FWIW, I dynoed with the Holley powershot, new paper air filter, and no filter, and saw ZERO changes, which is what I expected.
Last edited by WS6FirebirdTA00; 04-21-2007 at 11:34 PM.
04-21-2007 | 05:29 PM
#2
Very impressive gains in the mid-range Mike. Kinda explains why the Corvettes with HVMCs are so strong in the 3000-3500 range. You gotta torquey setup for sure!!
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
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2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
04-21-2007 | 06:24 PM
#6
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Thanks guys.
Yes it was SAE correction. The air temp was 16º hotter and the motor was hot (did not cool off between runs). Would have helped but I dont let the car cool off that much on the street or track so I didnt want to do it on the dyno. Also had my tires at about mid 20's psi as well (25-27 or so).
I am going to get to the track as soon as MT releases the 295/45/17's, or else I run out of gear lol
Yes it was SAE correction. The air temp was 16º hotter and the motor was hot (did not cool off between runs). Would have helped but I dont let the car cool off that much on the street or track so I didnt want to do it on the dyno. Also had my tires at about mid 20's psi as well (25-27 or so).
I am going to get to the track as soon as MT releases the 295/45/17's, or else I run out of gear lol
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04-21-2007 | 10:14 PM
#9
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
ypipe, I have the QTP one on there, and before I had a TSP one I modified because the way is merged was not good at all. After I got done with it, it was pretty good.
04-21-2007 | 11:05 PM
#12
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
Here you go, this was a dyno right after the 9" install (when I was checking for losses). About a 4 hp loss and 5 ft lbs loss through GMMG.
BTW, thanks Pat for posting that graph like that for me
BTW, thanks Pat for posting that graph like that for me
04-21-2007 | 11:26 PM
#13
Originally Posted by WS6FirebirdTA00
ypipe, I have the QTP one on there, and before I had a TSP one I modified because the way is merged was not good at all. After I got done with it, it was pretty good.
