Piper Camshafts - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

w0wbagger · 10-14-2015, 09:12 PM

Don't know, didn't ask that.

Hawk77FT · 10-14-2015, 09:31 PM

Still debating whether this will make a noticeable improvement on NA. This might be the last thing that will go on before going SC.

Any dyno graphs?

Naco · 10-14-2015, 10:22 PM

Something to keep in mind guys:

The more aggressive the cam is in regards to valve overlap (cleaner combustion = more power), the worse it'll be for boosted applications. It'll also be worse for states with strict emissions.

In regards to the high flowing heads, I believe that might have something to do with the FA20DIT configuration of this motor. The torque that would have been gained from flow velocity when coupled with a twin scroll turbo would have likely caused some reliability issues with the transmission and transfer case.

This then also bring up: Are the cams different on the DIT motor versus ours?

hmong337 · 01-04-2016, 07:28 PM

Are there actually any results from these?

FRS Justin · 01-04-2016, 09:44 PM

Quote:

Originally Posted by Tim Radley

One thing i forgot to add. The camshafts out of my stock 2014 Toyota GT86 measured up differently to the ones Piper had from a 2012 Subaru BRZ. Lift, duration and pin location were all different. It appears there are variations in stock cams between models.

2013 the motors used different 2 intake valves and lifters. In 2014 they use matching intake valves and lifters. Cams are the same so are the rockers. You can verify on Subaru parts catalog.

Gear_One_Performance · 01-05-2016, 08:43 AM

I've got a high compression big valve motor that we mothballed due to some rule changes, I'm tempted to get a set of the stage 3 cams and throw them in just to see what happens.

stevo585 · 01-05-2016, 06:24 PM

Quote:

Originally Posted by Gear_One_Performance

I've got a high compression big valve motor that we mothballed due to some rule changes, I'm tempted to get a set of the stage 3 cams and throw them in just to see what happens.

Specs and dyno...please

Gear_One_Performance · 01-05-2016, 11:17 PM

The dyno was unimpressive, we had a bunch of issues with the car at that point and decided to move over to something a little more reliable and tested for the 13 hour race.

fuddbutter · 02-19-2016, 12:03 AM

Quote:

Originally Posted by Tim Radley

Yes but the stock mapping does not help. I mentioned this elsewhere and a few people piped up and said they'd stalled. Sure you learn to drive around it but my view is the initial throttle opening isn't particularly user friendly. It does make it feel nice and punchy on torque when on the road in a straight line but coming out of slow corners on track it slows you down with the torque spike created. Softening it has made it drive better for me.

Once I put in an after market throttle controller, the initial throttle opening was fixed, The stock mapping for the throttle is horrible!

cdrazic93 · 02-19-2016, 12:40 AM

I wonder if their higher stages offer a boosted profile vs NA profile...

Hawk77FT · 02-19-2016, 12:45 AM

Quote:

Originally Posted by fuddbutter

Once I put in an after market throttle controller, the initial throttle opening was fixed, The stock mapping for the throttle is horrible!

You still slow for ficus sake!

Been looking at these Piper cams for a while now, but just want to see if they are really worth anything.

fuddbutter · 02-21-2016, 07:17 PM

Quote:

Originally Posted by Hawk77FT

You still slow for ficus sake!

Been looking at these Piper cams for a while now, but just want to see if they are really worth anything.

For Focus..

I have known about these a long time!
And i am still waiting for you to do something interesting to your car..

Hawk77FT · 02-21-2016, 07:20 PM

Quote:

Originally Posted by fuddbutter

For Focus..

I have known about these a long time!
And i am still waiting for you to do something interesting to your car..

Name: uploadfromtaptalk1456100408035.jpeg
Views: 1791
Size: 37.6 KB

Well, buy these and you will finally have a faster (ish) car. Post results afterwards.

Sent from my HTC_0P6B using Tapatalk

fuddbutter · 02-21-2016, 07:58 PM

Quote:

Originally Posted by Hawk77FT

Attachment 131706

Well, buy these and you will finally have a faster (ish) car. Post results afterwards.

Sent from my HTC_0P6B using Tapatalk

No one knows how fast you are when you are hardparked..

01-04-2016, 07:28 PM	#46
hmong337 Emperor JDM Join Date: Jun 2013 Drives: '91 MR2 Gen3 3SGTE, '13 FRS Location: Onterrible, Canada Posts: 1,750 Thanks: 3,498 Thanked 909 Times in 495 Posts Mentioned: 20 Post(s)	Are there actually any results from these? __________________

02-19-2016, 12:40 AM	#52
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s)	I wonder if their higher stages offer a boosted profile vs NA profile... __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

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10-14-2015, 09:12 PM	#43
w0wbagger Member Join Date: Jun 2014 Drives: GT86 Location: Germany Posts: 18 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s)	Don't know, didn't ask that.

10-14-2015, 09:31 PM	#44
Hawk77FT Senior Member Join Date: Jul 2012 Drives: GTS 86 Location: Australia Posts: 989 Thanks: 873 Thanked 476 Times in 272 Posts Mentioned: 12 Post(s)	Still debating whether this will make a noticeable improvement on NA. This might be the last thing that will go on before going SC. Any dyno graphs?

01-05-2016, 08:43 AM	#48
Gear_One_Performance Senior Member Join Date: Mar 2015 Drives: 2014 BRZ SCCA STU endurance car Location: West Chester, Pennsylvania Posts: 199 Thanks: 2 Thanked 142 Times in 82 Posts Mentioned: 1 Post(s)	I've got a high compression big valve motor that we mothballed due to some rule changes, I'm tempted to get a set of the stage 3 cams and throw them in just to see what happens.

01-05-2016, 11:17 PM	#50
Gear_One_Performance Senior Member Join Date: Mar 2015 Drives: 2014 BRZ SCCA STU endurance car Location: West Chester, Pennsylvania Posts: 199 Thanks: 2 Thanked 142 Times in 82 Posts Mentioned: 1 Post(s)	The dyno was unimpressive, we had a bunch of issues with the car at that point and decided to move over to something a little more reliable and tested for the 13 hour race.

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