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Old 07-07-2017, 07:07 PM   #99
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Originally Posted by sw20kosh View Post
The stg3 cams went into a motor with lower CR and dual valve springs so the NA results were ... not there. Waiting on supercharger.
Aw, cmon... I know that you lowered compression (for going fi) and it might affect results, but please give us some details.

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Old 07-07-2017, 07:13 PM   #100
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Originally Posted by sato View Post
Aw, cmon... I know that you lowered compression (for going fi) and it might affect results, but please give us some details.

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It made 20 whp over a bone stock FA20 with a similar torque curve shape to a tuned FBO FA20. Peak HP was achieved at 7200 rpm.
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Old 07-07-2017, 07:27 PM   #101
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It made 20 whp over a bone stock FA20 with a similar torque curve shape to a tuned FBO FA20. Peak HP was achieved at 7200 rpm.
Thanks for providing a bit more. I'm a suckered for info.

Are you not unhappy because you picked the top stage 3 cams and only saw 20whp on a lowered CR engine? Without those cams we probably wouldn't see those NA gains, no? Won't bother more, but eager for your feedback on the supercharger Build, and wish you success.

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Old 07-08-2017, 02:06 AM   #102
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Originally Posted by sato View Post
Thanks for providing a bit more. I'm a suckered for info.

Are you not unhappy because you picked the top stage 3 cams and only saw 20whp on a lowered CR engine? Without those cams we probably wouldn't see those NA gains, no? Won't bother more, but eager for your feedback on the supercharger Build, and wish you success.

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It was built as a FI motor from day 1 so it actually shouldn't surprise us.
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Old 07-08-2017, 10:45 AM   #103
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What compression ratio? The cams sound like a solid mod if you're making 20hp over stock with a lower compression. Looking forward to the FI results.
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Old 09-22-2017, 02:07 PM   #104
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I have piper's rally cams in my FA20 making 800+whp, i dont really go on the forum anymore, so i havent shared a build thread, but more and more people are asking about it.... so maybe soon
[ame="https://www.youtube.com/watch?v=POhOJCehKS0"]https://www.youtube.com/watch?v=POhOJCehKS0[/ame]


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Old 09-26-2017, 08:11 AM   #105
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Are there any more sources of information on engine builds with piper cams?
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Old 09-26-2017, 10:17 AM   #106
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Are there any more sources of information on engine builds with piper cams?
No, and I have not finished mine yet. I will publish information if I ever finish. Unlike the rest of the world
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Old 09-26-2017, 05:51 PM   #107
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Originally Posted by nav View Post
Are there any more sources of information on engine builds with piper cams?
I have stg3 cams in my lower compression built motor (built for boost). It was tuned without FI (for fun and information gathering) and disappointingly showed similar to stock power levels, if not lower than stock, but we actually found out, after the fact, that the cam control was going bonkers 4k rpm to redline. So we don't have a realistic representation of what the cams can do NA.

The engine needed a tear down for other reasons so I may be able to provide some readout when it is assembled again. The cam control issue is resolved so I will have full control of the cams.
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Old 09-26-2017, 06:01 PM   #108
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Quote:
Originally Posted by sw20kosh View Post
I have stg3 cams in my lower compression built motor (built for boost). It was tuned without FI (for fun and information gathering) and disappointingly showed similar to stock power levels, if not lower than stock, but we actually found out, after the fact, that the cam control was going bonkers 4k rpm to redline. So we don't have a realistic representation of what the cams can do NA.

The engine needed a tear down for other reasons so I may be able to provide some readout when it is assembled again. The cam control issue is resolved so I will have full control of the cams.
Much excite.
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Old 09-26-2017, 08:44 PM   #109
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Quote:
Originally Posted by sw20kosh View Post
I have stg3 cams in my lower compression built motor (built for boost). It was tuned without FI (for fun and information gathering) and disappointingly showed similar to stock power levels, if not lower than stock, but we actually found out, after the fact, that the cam control was going bonkers 4k rpm to redline. So we don't have a realistic representation of what the cams can do NA.

The engine needed a tear down for other reasons so I may be able to provide some readout when it is assembled again. The cam control issue is resolved so I will have full control of the cams.
Out of curiosity why did the engine need another teardown?

Thanks for the reply on your progress! Looking forward to when you get the cam to play nice with the motor.
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Old 09-27-2017, 02:43 AM   #110
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Quote:
Originally Posted by sw20kosh View Post
I have stg3 cams in my lower compression built motor (built for boost). It was tuned without FI (for fun and information gathering) and disappointingly showed similar to stock power levels, if not lower than stock, but we actually found out, after the fact, that the cam control was going bonkers 4k rpm to redline. So we don't have a realistic representation of what the cams can do NA.

The engine needed a tear down for other reasons so I may be able to provide some readout when it is assembled again. The cam control issue is resolved so I will have full control of the cams.
If it was tuned on lower CR but still gave similar results to stock power levels, wouldn't the stock CR w/ the cams provide better results (or poorer) then?
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Old 09-27-2017, 10:43 AM   #111
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If it was tuned on lower CR but still gave similar results to stock power levels, wouldn't the stock CR w/ the cams provide better results (or poorer) then?
I would assume it would give better results. Compression makes more power so I would assume a stock compression motor with the stg3 cams would make more power than a low CR one. I could be wrong but assuming the low CR was around a 9.5:1 or 10:1 it would take quite a bit of power out of the FA20 with keeping it NA so having it make close to stock levels with the cam control malfunctioning sounds promising for the cams as a power adder for a NA build.
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Old 09-27-2017, 08:59 PM   #112
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@CSG Mike Of the NA engines CSG has delivered, have any been focused on an NA build with more aggressive camshafts? If so, how did they change the torque characteristics after 7,000rpm and do you see any bottlenecks?
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