LSA dyno run for review & comments - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bayarea408 · 01-17-2018, 08:51 PM

What injectors did you use?

A ZL1 should post up closer to 500 wheel. I have seen STOCK ZL1's go 480-515 on various dyno's. Dynojet and dyna pack

I suspect dyno calibration off on the mustang dyno if hes saying he clocks stock ZL1's at 440.

Dyno is just a calibration tool. Maybe try to spin her somewhere else see what numbers you get. How does the tune feel? does the car break up? how does it idle?

gtstorey · 01-18-2018, 09:28 AM

Quote:

Originally Posted by bayarea408

What injectors did you use?

A ZL1 should post up closer to 500 wheel. I have seen STOCK ZL1's go 480-515 on various dyno's. Dynojet and dyna pack

I suspect dyno calibration off on the mustang dyno if hes saying he clocks stock ZL1's at 440.

Dyno is just a calibration tool. Maybe try to spin her somewhere else see what numbers you get. How does the tune feel? does the car break up? how does it idle?

I used the ones that came with the ADM kit, which should be the ZL1 injectors. The car seems to run good, except once when it cold and I really didn't give it anytime to warm up and then it stumbled a little bit. Idles good although maybe a little on the slow side.

I probably will eventually make a run somewhere else just to see. I'm starting to think maybe it is just a combination of little things that make the reading low. Not running it out as far as he might could, Mustang dyno, L99/auto could add up.

If the actual peak was more like 460 at 6400 (which seems possible based on other's dyno runs I found) and the dyno reading is off by 10% from a dynojet (again seems to be an amount often thrown out) that puts me at 506 rwhp. If my drivetrain losses are on the high side of 18% (and I had brand new fluid in transmission and differential) that's 597 at the engine which is a 50% increase that I was expecting.

Olddudesrule · 01-18-2018, 11:01 PM

With the 2.75 upper, I'm making 8 - 8.5 lbs of boost.

briancamaross · 01-19-2018, 07:39 AM

Try a different dyno or go run at the track. Where I live I have done back to back dyno on my l99 before cam , on a dynocom dyno it did 428/433 on a mustang dyno it did 416/428. I watched a 13 stock zl1 with tune cai do 460/450 on the dynocom

01-18-2018, 11:01 PM	#17
Olddudesrule Resident nomad Drives: 2014 Summit White 1SS/1LE Join Date: Nov 2015 Location: Gilbert, AZ Posts: 1,765	With the 2.75 upper, I'm making 8 - 8.5 lbs of boost. __________________ Sold: 2007 Z06 2002 Viper GTS/ACR 2003 Z06 1965 FFR Cobra 2012 Nissan 370Z ADM LSA Stage II, Roto-Fab CAI, Kooks LTH/HFC's, Phastek CC, ported TB, Mishimoto radiator and oil cooler, BC Racing ER Series CO's, JPSS 32mm Black Magic rear bar, JPSS front inserts, R1 Concepts Premier slotted rotors/Goodrich SS lines, Schroth ASM harness, MGW flatstick, Brey-Krause HB, Tuned by NicD, at Cordes Performance Racing.

01-19-2018, 07:39 AM	#18
briancamaross Drives: 2011 ss 2ss auto camaro Join Date: Mar 2015 Location: mary esther florida Posts: 385 View My Garage	Try a different dyno or go run at the track. Where I live I have done back to back dyno on my l99 before cam , on a dynocom dyno it did 428/433 on a mustang dyno it did 416/428. I watched a 13 stock zl1 with tune cai do 460/450 on the dynocom __________________ 2011 2ss white Camaro mods are texas speed stage 4 cam 235/239 Texas speed 2inch headers no cats magna flow bullet mufflers gpi rod mod ,circle d 4000-4200 5c stall. 3.91 gears vararm cai power wedge.

01-17-2018, 08:51 PM	#15
bayarea408 Drives: T Join Date: Mar 2015 Location: CA Posts: 803	What injectors did you use? A ZL1 should post up closer to 500 wheel. I have seen STOCK ZL1's go 480-515 on various dyno's. Dynojet and dyna pack I suspect dyno calibration off on the mustang dyno if hes saying he clocks stock ZL1's at 440. Dyno is just a calibration tool. Maybe try to spin her somewhere else see what numbers you get. How does the tune feel? does the car break up? how does it idle?