Got my HPE Heads/Cam setup done - Dyno results
04-30-2005, 09:56 PM
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Got my HPE Heads/Cam setup done - Dyno results Well, I got HPE to install their S-cam along with their Stage 3 5.3L heads, and they finished it up today. Mods before were jet-hot longtube headers w/ ORY, lid, filter, cutout, a vig3200 and predator tuning. the car made 309 hp (unlocked) and 331 (locked) before the work from HPE. It ran a best of 12.30 @ 109.3 on nitto DR's.
After the heads/cam, ASP pulley, ported TB and tune, it made 421 rwhp with the converter locked. I can't remember the peak torque (and it's not on the dynosheet for some reason), but I think it was around 383. The torque curve was damn near flat across the entire RPM range. I need to see if i can get a copy of the sheet with HP and torque. I thought i may need a bigger stall with this setup, but I think this it is going to work out good with the vig3200.
Anyway, the car scares me right now (haha). Pulls like crazy over what it did before...need to get better brakes now. I didn't get a chance to really open it up yet. It lopes like crazy at a stop...sounds awesome through the cutout, but i need to replace the stock catback for it to sound really good through the muffler.
Thumbs up for HPE, I was happy with the results on the dyno. Need to spend some more time with it to see how fun it really is to drive. Hopefully I can get a dyno graph posted next week.
After the heads/cam, ASP pulley, ported TB and tune, it made 421 rwhp with the converter locked. I can't remember the peak torque (and it's not on the dynosheet for some reason), but I think it was around 383. The torque curve was damn near flat across the entire RPM range. I need to see if i can get a copy of the sheet with HP and torque. I thought i may need a bigger stall with this setup, but I think this it is going to work out good with the vig3200.
Anyway, the car scares me right now (haha). Pulls like crazy over what it did before...need to get better brakes now. I didn't get a chance to really open it up yet. It lopes like crazy at a stop...sounds awesome through the cutout, but i need to replace the stock catback for it to sound really good through the muffler.
Thumbs up for HPE, I was happy with the results on the dyno. Need to spend some more time with it to see how fun it really is to drive. Hopefully I can get a dyno graph posted next week.
04-30-2005, 10:15 PM
#2
Kickass numbers! You should fly.
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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.
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
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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.
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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
04-30-2005, 11:09 PM
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i can't remember the numbers, but they were really good flowing heads. intake was ~330, can't remember exhaust. I keep thinking of all these questions i asked but forgot to write down. after i drive the car a couple days and think about it a little more i have several questions i want to ask about the car and the tune. If anyone has questions keep asking, and I'll get all the information to post up here if I don't know the answer.
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05-01-2005, 08:28 PM
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don't know about P to V. HPE did the install, and I didn't ask. The heads are not milled as far as I know. They are HPE's stage 3 CNC machined 5.3 liter head.
I'm going to try and get a sound clip of it, but i don't think my digicam will really do it justice.
I'm going to try and get a sound clip of it, but i don't think my digicam will really do it justice.
05-02-2005, 11:53 AM
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Originally Posted by RawWS6
don't know about P to V. HPE did the install, and I didn't ask. The heads are not milled as far as I know. They are HPE's stage 3 CNC machined 5.3 liter head.
I'm going to try and get a sound clip of it, but i don't think my digicam will really do it justice.
I'm going to try and get a sound clip of it, but i don't think my digicam will really do it justice.
Chuck
