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

Tim Radley · 07-20-2015, 03:32 PM

It has the header and port work also done.
I'm thinking I should try the ACE header as that is claiming more gain on it's on than I have seen with all my changes.

Quote:

Originally Posted by uspspro

@Tim Radley

Hey Tim,

This is some really amazing stuff, thanks for sharing your findings!

Question... So, just to clarify that nice dyno chart has the following mods, please correct me if I am wrong...

- Piper Cams
- Upgraded single valve springs
- Tuned ECU (Motec)
- Stock header
- Stock internals, other than cams/srpings, but blueprinted.

Does it have any of the port filling work done to it, or are the ports still stock?

Thanks!!

abraxis · 07-20-2015, 08:55 PM

+1 for someone getting these heads into the game.

+2 for for verifying the ACE header.

Traktor · 09-02-2015, 09:12 AM

That dyno graph still has peak power at around 7000, similar to stock. It will be interesting to see if the more aggressive cam enables power above this.
Great to see cams finally coming to market.

Sent from my iPhone using Tapatalk

w0wbagger · 10-10-2015, 02:43 AM

The piper website says that with their stage 2 cams one would also need their valve springs.
Well since I am already running aftermarket double valve springs I was wondering if I could install the stage 2 cams (ultimate road) without changing my valve springs again. Anybody has some info/ opinion about that?
I am also running +1mm oversize valves.

sw20kosh · 10-10-2015, 12:38 PM

Quote:

Originally Posted by w0wbagger

The piper website says that with their stage 2 cams one would also need their valve springs.
Well since I am already running aftermarket double valve springs I was wondering if I could install the stage 2 cams (ultimate road) without changing my valve springs again. Anybody has some info/ opinion about that?
I am also running +1mm oversize valves.

Wow! Any data or dyno results from your current setup?

w0wbagger · 10-11-2015, 01:40 AM

I am running the Vortech Kit and not n/a, if that was what you'd hoped for.
For my results check the vortech owner thread.

Since the oversize valves have been installed together with the engine builing i cannot say how much gains just by the valves could have been reached.

w0wbagger · 10-12-2015, 05:16 AM

I've just received an E-Mail from piper, that their stage 2 and 3 cams can also be used with other aftermarked stronger valve springs! Just if any1 else was curious.

wizzo · 10-14-2015, 02:50 AM

Can they be used with stock pistons?

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.

Tim Radley · 01-05-2016, 06:52 AM

Quote:

Originally Posted by FRS Justin

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.

They measured up the one they had from a JDM Subaru and mine from a UK Toyota. Both were different in the ways i mentioned above. Still confused why but its not the first time i've seen a manufacturer change a spec without issuing a new part number.

09-02-2015, 09:12 AM	#45
Traktor Member Join Date: Aug 2015 Drives: Subaru BRZ Limited Location: MD, USA Posts: 92 Thanks: 44 Thanked 37 Times in 22 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Piper Camshafts That dyno graph still has peak power at around 7000, similar to stock. It will be interesting to see if the more aggressive cam enables power above this. Great to see cams finally coming to market. Sent from my iPhone using Tapatalk Last edited by Traktor; 09-02-2015 at 03:19 PM.

01-04-2016, 07:28 PM	#54
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) Tagged: 3 Thread(s)	Are there actually any results from these? __________________

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07-20-2015, 08:55 PM	#44
abraxis Senior Member Join Date: Aug 2014 Drives: many Location: here Posts: 487 Thanks: 190 Thanked 279 Times in 152 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	+1 for someone getting these heads into the game. +2 for for verifying the ACE header.

10-10-2015, 02:43 AM	#46
w0wbagger Member Join Date: Jun 2014 Drives: GT86 Location: Germany Posts: 18 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The piper website says that with their stage 2 cams one would also need their valve springs. Well since I am already running aftermarket double valve springs I was wondering if I could install the stage 2 cams (ultimate road) without changing my valve springs again. Anybody has some info/ opinion about that? I am also running +1mm oversize valves.

10-11-2015, 01:40 AM	#48
w0wbagger Member Join Date: Jun 2014 Drives: GT86 Location: Germany Posts: 18 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I am running the Vortech Kit and not n/a, if that was what you'd hoped for. For my results check the vortech owner thread. Since the oversize valves have been installed together with the engine builing i cannot say how much gains just by the valves could have been reached.

10-12-2015, 05:16 AM	#49
w0wbagger Member Join Date: Jun 2014 Drives: GT86 Location: Germany Posts: 18 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I've just received an E-Mail from piper, that their stage 2 and 3 cams can also be used with other aftermarked stronger valve springs! Just if any1 else was curious.

10-14-2015, 02:50 AM	#50
wizzo Member Join Date: Jun 2014 Drives: 2014 Toyota 86 Location: Dubai, UAE Posts: 84 Thanks: 2 Thanked 17 Times in 14 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Can they be used with stock pistons?

10-14-2015, 09:12 PM	#51
w0wbagger Member Join Date: Jun 2014 Drives: GT86 Location: Germany Posts: 18 Thanks: 0 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Don't know, didn't ask that.

10-14-2015, 09:31 PM	#52
Hawk77FT Senior Member Join Date: Jul 2012 Drives: GTS 86 Location: Australia Posts: 989 Thanks: 873 Thanked 475 Times in 272 Posts Mentioned: 12 Post(s) Tagged: 1 Thread(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?

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