Jun Camshafts. Anyone have REAL dyno sheets to back it up?

Navyboy916 · 08-14-2013, 03:11 PM

If that's what your looking for is just a car that runs don't even think about touching the internals cause they are not even close to just popping the valve covers off and swapping cams. I have the poly engine mounts and trans mount and I love them but there is a little more vibration but the engine is a lot more stable I will say that

DEpointfive0 · 08-14-2013, 03:24 PM

Quote:

Originally Posted by luigi90210

Honestly I wouldn't really bother unless you have a way to adjust vvel to take advantage of the aggressive cams. You should go forged internals, maybe even stroke the motor out to 4L using GTMs kit and add 2 34 row oil coolers and a huge radiator.

Quote:

Originally Posted by Chuck33079

That's a $20k+ bill from GTM, with a lead time of at least a month. I think that's a little beyond the scope of what he's trying to do here.

Quote:

Originally Posted by Chuck33079

I think at this point he'd settle for a car that runs.

What he said!

I just want to do whatever mods I can for the cheap or almost built in labor I have right now.

At this point I'm not sold on the headers, but I'll leave this thread open for future reference and if anyone can comment and give results.
But lets stay on topic

Navyboy916 · 08-14-2013, 05:46 PM

I will be in Hawaii in oct so when I get there I will be getting my car dyno tuned. Then you have the actual results. Be advised that I have built heads as well.

IDZRVIT · 08-14-2013, 06:14 PM

How does an exhaust cam increase HP/TQ?

Japanjay · 08-14-2013, 08:21 PM

The exhaust side has to be proportional to the intake to some degree. Volume plus expansion that comes in also has to go out. If not enough lift on the valves on the exhaust side it will choke out. The higher the exhaust valves lift during the exhaust cycle the more that can exit.

luigi90210 · 08-14-2013, 08:27 PM

Quote:

Originally Posted by DEpointfive0

What he said!

I just want to do whatever mods I can for the cheap or almost built in labor I have right now.

At this point I'm not sold on the headers, but I'll leave this thread open for future reference and if anyone can comment and give results.
But lets stay on topic

get top speed short tube headers, i read some great thing about them on the G37 forum and i believe they are copying PPE design, great value as well(under $400 for them)

DEpointfive0 · 08-14-2013, 08:40 PM

Quote:

Originally Posted by luigi90210

get top speed short tube headers, i read some great thing about them on the G37 forum and i believe they are copying PPE design, great value as well(under $400 for them)

A) haven't heard anything about TS headers
B) PPE headers are LTHs
C) I'd rather stab needles in my còck over buying any TS exhaust product. I'd MUCH rather buy Megab racing

G37sHKS · 08-14-2013, 11:22 PM

Dry sump oil system is an option too.

GTM and Performance Motorsports sell kit for VHR engines

DEpointfive0 · 08-14-2013, 11:27 PM

Quote:

Originally Posted by G37sHKS

Dry sump oil system is an option too.

GTM and Performance Motorsports sell kit for VHR engines

... It's SIX THOUSAND DOLLARS... That's about 1000 times less cost effective than the cams

cv129 · 08-14-2013, 11:51 PM

Quote:

Originally Posted by DEpointfive0

A) haven't heard anything about TS headers
B) PPE headers are LTHs
C) I'd rather stab needles in my còck over buying any TS exhaust product. I'd MUCH rather buy Megab racing

For his bday, we should cover DE's car with TS stickers...and swap in a TS exhaust haha

DEpointfive0 · 08-14-2013, 11:54 PM

Quote:

Originally Posted by cv129

For his bday, we should cover DE's car with TS stickers...and swap in a TS exhaust haha

I have guns...

( Click to show/hide )

luigi90210 · 08-15-2013, 04:52 AM

Quote:

Originally Posted by DEpointfive0

A) haven't heard anything about TS headers
B) PPE headers are LTHs
C) I'd rather stab needles in my còck over buying any TS exhaust product. I'd MUCH rather buy Megab racing

I haven't heard much about them here but when I googled searched them, some G37 forums came up. I just remember reading that somewhere(probably different header thread) so don't quote me on top speed copying ppe design.

I have heard some good things about the top speed exhaust and the header review I read had nothing but good things to say about their headers.

I have to find the thread about the headers online but that shouldn't be too hard. I'll post a link here when I find them .

EDIT found one of the threads I read.

Top Speed Headers Installed! - 6MT.net Infiniti G35/G37/GTR Forums

DEpointfive0 · 08-15-2013, 08:38 AM

^LOL!!! That link is from 2004!

And lets see the shít reviews:
Z1 motorsports vs top speed headers - MY350Z.COM Forums

luigi90210 · 08-15-2013, 12:33 PM

Quote:

Originally Posted by DEpointfive0

^LOL!!! That link is from 2004!

And lets see the shít reviews:
Z1 motorsports vs top speed headers - MY350Z.COM Forums

Well that one was a mix really one guys loves them the other hates them XD

Anyhow you could go with Z1 momentum knock offs.

apornso · 04-30-2017, 09:42 AM

I wonder the same thing. I am considering changing cams and cam gears to adjustable cam gears for better timing adjustment. But all i see for responses are either "not worth it" or change everything while you are in there. Does anyone have any solid numbers otyer than reasons to deter the upgrade? Is there more torque throughout the curve, 2hp gain on the top, more hp throughout the curve, etc? What are the solud numbers please?

08-14-2013, 06:14 PM	#19 (permalink)
IDZRVIT A True Z Fanatic Join Date: May 2009 Location: Halifax Posts: 1,659 Drives: '13 CTS-V, '76 Vette Rep Power: 26	How does an exhaust cam increase HP/TQ? __________________ "America.... still builds rockets!" Vette: 355 cid, 400 rwhp '13 CTS-V Coupe: 6.2L LSA, 556HP

08-14-2013, 11:22 PM	#23 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	Dry sump oil system is an option too. GTM and Performance Motorsports sell kit for VHR engines __________________ G37 BUILD UNDER CONSTRUCTION

08-15-2013, 08:38 AM	#28 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	^LOL!!! That link is from 2004! And lets see the shít reviews: Z1 motorsports vs top speed headers - MY350Z.COM Forums __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

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08-14-2013, 03:11 PM	#16 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 13	If that's what your looking for is just a car that runs don't even think about touching the internals cause they are not even close to just popping the valve covers off and swapping cams. I have the poly engine mounts and trans mount and I love them but there is a little more vibration but the engine is a lot more stable I will say that

08-14-2013, 05:46 PM	#18 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 13	I will be in Hawaii in oct so when I get there I will be getting my car dyno tuned. Then you have the actual results. Be advised that I have built heads as well.

08-14-2013, 08:21 PM	#20 (permalink)
Japanjay Track Member Join Date: Mar 2012 Location: Puyallup Posts: 856 Drives: 09 Nissan 370z MB M6 Rep Power: 14	The exhaust side has to be proportional to the intake to some degree. Volume plus expansion that comes in also has to go out. If not enough lift on the valves on the exhaust side it will choke out. The higher the exhaust valves lift during the exhaust cycle the more that can exit.

04-30-2017, 09:42 AM	#30 (permalink)
apornso Base Member Join Date: Jan 2016 Location: granville, oh Posts: 8 Drives: 2016 370z black 6mt Rep Power: 9	I wonder the same thing. I am considering changing cams and cam gears to adjustable cam gears for better timing adjustment. But all i see for responses are either "not worth it" or change everything while you are in there. Does anyone have any solid numbers otyer than reasons to deter the upgrade? Is there more torque throughout the curve, 2hp gain on the top, more hp throughout the curve, etc? What are the solud numbers please?