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04-13-2020, 08:57 AM
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#15 |
 
Drives: 2019 Chevrolet Camaro Join Date: Sep 2019
Location: Amherst, Ohio
Posts: 45
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Oldman - not really sure of the pulley size, but it must be the old system as the filter is over the drivers side header...I do trust the installer to know the limits of the LT1 - they've done a lot of good work for me in the past...
I'll let everyone know when I get it back.... |
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04-13-2020, 09:30 AM
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#16 |
          Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,346
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It is stamped on the pulley, or you can measure it. The inside groves are like .15 smaller in radi than the lip of the pulley. Even Procharger was wrong about my boost level, when I went to a D1x (heads, small cam, headers). They spec a 4.0 pulley for my requested 8 PSI of boost. Right now (I'm always changing stuff), I'm on stock headers, custom fab downpipe with cats, heads, big cam, I have a 4.5 pulley and it is a tad over 10 PSI.
When I posted my new setup 2 years ago, a few guys sent me email saying the 4.0 is going to put over 10 PSI on a D1X, so I ordered a 4.5 pulley. My base setup with a P1SC came with a 4.0 pulley and made 8 psi with header, small cam, heads 6800 RPM. And yes I did answer all the question about my location altitude fuel and max engine speed.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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04-19-2020, 09:47 PM
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#17 | |
 
Drives: 16 Camaro 2SS Join Date: Feb 2017
Location: Chicago
Posts: 214
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Quote:
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04-24-2020, 09:53 AM
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#18 |
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Drives: 2019 Chevrolet Camaro Join Date: Sep 2019
Location: Amherst, Ohio
Posts: 45
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Got it back from the installer/tuner. The car only has 1,600 miles on it. The pulley on the Procharger is stamped 4. 50. I'm assuming that is 4.5? It made 558 rwhp and 497 rwtq. Car is a totally different animal. It just doesn't stop pulling. 0-100 happens in what feels like 5 seconds...lol
It sounds like a jet engine is in my motor compartment...very cool.. Really impressed and happy with the results. Dyno sheet is posted....does the 0-60 (psi) at the bottom of the sheet mean boost? |
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04-24-2020, 11:17 AM
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#19 |
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Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,346
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Unless there was a connection to the ODBII port, I don't see how it can be boost. Boost which is a measurement of restriction should be about 8 PSI, I don't know for sure as the engines I have are all built (less restriction), so a built engine will see less boost for any given pulley size, any given RPM, say 1 to 2 PSI less boost; but the built engine will be making more HP.
That said it sure does look like a boost curve. 10.4 PSI is a lot of boost and it does look like there is a hick-up of some sort and maybe it is knock retard, as it was on its way to making 560 whp by 6100 RPM.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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04-24-2020, 01:20 PM
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#20 |
Drives: 2018 Camaro SS 1LE Join Date: Jul 2018
Location: Stuttgart, Germany
Posts: 903
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Nice results! I know the feeling of moving NA to supercharged - transformed the car. I've had the same challenges with dyno shops. Why can't they give you one nicely done dyno sheet with appropriate scaling, etc. Important docs especially couple of years down the road.
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