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BeckyD @ James Martin Chevy


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Old 04-21-2018, 08:30 AM   #1
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Pray Performance STG 1 H/C Results.

Yes, I know the graph is in STD and yes, I know it is over MPH. I didn't screw this one together or Dyno it so the graph is what it is. The gains are what are important.

I would like to thank Dan Olson and Carl Thomas at CJ Tunes for getting this build done and shooting me the results. This car is a 16' M6 car.

Dan already had my ported stock IM/TB on the car, Kooks 1 7/8" LT's no cats, RF w/ dry filter, E85. We added Pray Performance ported cylinder heads and Pray Performance STG 1 camshaft. The cam is low 220's/barely 230's. There was no milling done to these heads. After that dyno session was done they added an un-ported MSD and ran it again. The MSD did very well as expected. The stock ported IM/TB just runs out of air up top. Even ported, the stock set on my flow bench attached to my ported heads with the TB bolted on flows just over 300cfm. The ported MSD flows 335cfm in the same conditions. But the stock ported stuff hangs in there pretty well to 6,500rpm or so.

I have advocated the MSD (ported of course) on H/C cars for quite a while now but never had the data to back it up. As I have proven over and over, the MSD makes no more power than a ported stock set up in FBO fashion. But with the added air flow of the ported head and even a baby cam it really shines. I am curious to see what it does ported.

According to the car owner this dyno reads very low. It made 461rw STD on this dyno and 470rw SAE on another local dyno with the exact same mods.

Run 18 is FBO, Ported IM/TB, E85.
Run 23 is FBO, Ported IM/TB, E65, PP ported STG 1 H/C package.
Run 24 is FBO, Stock MSD, E65, PP ported STG 1 H/C package.

Name:  Dans, FBO, Stg1, Stg1+ MSD.jpg
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Old 04-21-2018, 08:43 AM   #2
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sexy sexy!!
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2016 SS A8 STOCK 12.35@113.6 DA 1956
PRAY E85 TUNE,PRAY PORTED IM/TB,ROTOFAB DRY, DRAG PACK 11.33@121.8 DA 1248
PRAY PORTED MSD, 2" TSP LT's 11.38@122.4 DA 3664
GFORCE DRIVESHAFT,LME 174 T-STAT,ATI UDP up next...
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Old 04-21-2018, 09:29 AM   #3
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Nice. I saw these results on your FB page. I hope that for someone like me, who is stuck with 93 at best, can see mid 500’s on the same setup.
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Old 04-21-2018, 11:09 AM   #4
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If I could get 4.10 for my rear, I would not even need a supercharger, Pray stuff and a tune would be all that is needed. You guys will note that Pray makes his money on ported stock intake and TB, yet he is a straight shooter and well let you know what is going to make the power and why.
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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.

Last edited by oldman; 04-21-2018 at 03:15 PM.
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Old 04-21-2018, 03:25 PM   #5
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Quote:
Originally Posted by oldman View Post
If I could get 4.10 for my rear, I would not even need a supercharger, Pray stuff and a tune would be all that is needed. You guys will note that Pray makes his money on ported stock intake and TB, yet he is a straight shooter and well let you know what is going to make the power and why.
What I was told about gears.
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Old 04-21-2018, 05:48 PM   #6
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They told me the same thing two years ago.
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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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Old 04-21-2018, 10:23 PM   #7
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I was going back and forth about the msd intake but I guess this sealed the deal.
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Old 04-23-2018, 02:24 PM   #8
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I reckon one should feel 100 rwhp gain!
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Old 04-23-2018, 03:05 PM   #9
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Nice runs, MSD gains look really good up top! What RPM are you spinning the motor to on the H/C package runs?
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