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06-21-2018, 03:42 PM
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#1 |
 
Drives: 2016 camaro 1ss Join Date: May 2017
Location: AZ
Posts: 16
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Gains from ported MSD & 2 inch headers?
Last year in December I did a heads/Cam package on my car I retained my 1 3/4 headers and non ported MSD. Well now I’m trying to get a good idea of what gains or loss I should expect from switching to Texas speed 2 inch headers and a ported msd. If anybody has some input it is very much appreciated, thank you.
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06-21-2018, 04:34 PM
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#2 |
          Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,346
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Pray has a pretty impressive dyno of ported stock to ported MSD, I would not expect too much from 1/8 header change and stock cubes but who knows? I had my own ported TB, I went to a Katec 103 mm TB. IMO it is more of a tuner issue and each car is a little different. I never dynoed at all so only have SOTP evaluation. IMO the MSD and 103 TB was worth 5 to 10 on the top with no noticeable sag in the midrange on E85. I did the heads, cam and supercharger all at the same time so I can't tell you what a ported MSD did with just heads and cam.
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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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06-22-2018, 11:13 AM
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#3 |
Drives: 2016 2SS Join Date: Jul 2016
Location: Sanford NC
Posts: 2,766
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1 3/4" are too small. Ported MSD is probably worth 10-15rw over non ported. It picks up tq as well and helps extend the top end.
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06-22-2018, 11:30 AM
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#4 | |
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Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,346
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Quote:
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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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06-23-2018, 02:31 PM
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#5 | |
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Drives: 2016 camaro 1ss Join Date: May 2017
Location: AZ
Posts: 16
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Quote:
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06-23-2018, 02:32 PM
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#6 | |
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Drives: 2016 camaro 1ss Join Date: May 2017
Location: AZ
Posts: 16
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Quote:
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06-23-2018, 02:41 PM
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#7 |
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Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,346
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I think it is hard to say, normally on a small block you won't see much gain. But this engine seems to break all the rules of thumb, so I'd say 8 to 16 HP all above 5000 RPM, with 12 HP being the most probable.
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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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