JUN exhaust cam shaft finally arrived

Navyboy916 · 10-31-2012, 05:20 AM

Update: I am shipping my cylinder heads tomorrow to Gtm for a 5 angle valve job and new valve springs and retainers and have my jun cams installed. I should have my heads back on the car in about two to three weeks. My plan just to have the cams installed has gone in a different direction. Since the heads are off I should get all the work done now. The 5 angle valve job should open the heads up even more. It's either GO BIG or GO HOME. Oh yes the heads will be off tomorrow so more pics of the block coming tomorrow.

GarageLine.com · 10-31-2012, 09:59 AM

What happened that made you go from just installing them to a complete top end build?

The Dimer · 10-31-2012, 10:53 AM

Quote:

Originally Posted by GarageLine.com

What happened that made you go from just installing them to a complete top end build?

Might as well get the most out of it while everything is apart. It's going to take longer, but that's what I'd do too.

Navyboy916 · 10-31-2012, 02:52 PM

The cams were just suppose to just be installed but when looking at the cam profile the stock valve springs and retainers might not be able to support the cams. After purchasing the valve train the Nissan dealership has to pull the heads off to swap out the valve train and with them off I called Gtm to actually have the head work done and at the same time reassemble the heads with the new valve train and cams installed with new arp head bolts to. I am sending the heads off today.

indyn · 11-14-2012, 12:05 PM

Quote:

Originally Posted by Navyboy916

The cams were just suppose to just be installed but when looking at the cam profile the stock valve springs and retainers might not be able to support the cams. After purchasing the valve train the Nissan dealership has to pull the heads off to swap out the valve train and with them off I called Gtm to actually have the head work done and at the same time reassemble the heads with the new valve train and cams installed with new arp head bolts to. I am sending the heads off today.

Navyboy, was it recommended to swap the valve train when doing this mod. Does JUN recommend it as well?

GarageLine.com · 11-14-2012, 01:21 PM

Quote:

Originally Posted by indyn

Navyboy, was it recommended to swap the valve train when doing this mod. Does JUN recommend it as well?

I asked Circuit Concepts:

Quote:

Dear Jermaine

These camshafts are designed for the Nissan stock valvesprings.

Regards

Navyboy916 · 11-01-2012, 02:21 AM

I just left the post office and it cost me 383.00 to ship both heads to Ca. The heads are finally shipped to GTM to have the head work done. Here are some pics of the block without the heads.

Navyboy916 · 11-02-2012, 07:39 PM

I am reading a lot of these post about hp and tq numbers. Everyone has their own ideas about what is going to make power. For the cams I must say that you can't just buy the cams and swap them in. They are actually to aggressive for the stock valve train. So if you plan on swapping the cams be prepared to spend some coin on pulling the heads off and swapping the valve train. It's even more expensive for our cars cause the intake girdle has to come off in order to reach the complete head, both dc accucators, all three timing chains and timing gears. This swap is taking awhile for me and as other perform this swap more efficient ways will be performed on the motors. So if you think u can just swap these cams in you better rethink your plan. Check out my thread about my head and cam build John's Sweet NA build

Mike · 11-02-2012, 08:11 PM

Z1 told me it would be at least 20 hours labor for exhaust cams.

Navyboy916 · 11-02-2012, 08:37 PM

Yea it's a little more then that but if that's what they said then good. Again it's not a simple job pulling the intake side off. Also, swapping the valve train take a lot of time and then finding the correct shims is actually the longest part of the process cause there is no standard size every car is different. For each one they will have put the shim in measure and if not correct try another so on and so on.

ZKraken22 · 11-05-2012, 11:37 AM

did GTM give you a time frame of when they would be done with your heads?

Navyboy916 · 11-05-2012, 01:58 PM

Yes they said it will take about a week and half and then they will be shipping them back to me. I am also having the moderate port and polish job added to the heads now and upgrading the valves to.

BlkNismo · 11-06-2012, 08:19 AM

Quote:

Originally Posted by Navyboy916

Yes they said it will take about a week and half and then they will be shipping them back to me. I am also having the moderate port and polish job added to the heads now and upgrading the valves to.

pretty much GTM's stage 2 head package?

Navyboy916 · 11-06-2012, 11:04 AM

Yes

scth83 · 11-06-2012, 05:13 PM

Did you get a reply from them in the past 2 weeks? A few email sent but no reply from them.

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10-31-2012, 09:59 AM	#2 (permalink)
GarageLine.com Track Member Join Date: Oct 2011 Location: Gaithersburg, MD Posts: 937 Drives: 10 Nissan 370z Rep Power: 16	What happened that made you go from just installing them to a complete top end build? __________________ http://garageline.com/img/garageline...1507327689.jpg www.GarageLine.com \| Sales@GarageLine.com \| Like US on Facebook

11-02-2012, 07:39 PM	#8 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 16	I am reading a lot of these post about hp and tq numbers. Everyone has their own ideas about what is going to make power. For the cams I must say that you can't just buy the cams and swap them in. They are actually to aggressive for the stock valve train. So if you plan on swapping the cams be prepared to spend some coin on pulling the heads off and swapping the valve train. It's even more expensive for our cars cause the intake girdle has to come off in order to reach the complete head, both dc accucators, all three timing chains and timing gears. This swap is taking awhile for me and as other perform this swap more efficient ways will be performed on the motors. So if you think u can just swap these cams in you better rethink your plan. Check out my thread about my head and cam build John's Sweet NA build zjhodges likes this. Last edited by Navyboy916; 11-02-2012 at 07:45 PM.

11-02-2012, 08:11 PM	#9 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2188	Z1 told me it would be at least 20 hours labor for exhaust cams. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

11-05-2012, 11:37 AM	#11 (permalink)
ZKraken22 A True Z Fanatic Join Date: Jun 2011 Location: Houston Posts: 1,115 Drives: 10 Nissan 370Z 7AT Rep Power: 18	did GTM give you a time frame of when they would be done with your heads? __________________ Litespeed Racing Titanium Cold Air intake// GT Haus Axle// GarageLine combo// Nismo sway bars// Nismo Spoiler // Berk TP's

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10-31-2012, 05:20 AM	#1 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 16	Update: I am shipping my cylinder heads tomorrow to Gtm for a 5 angle valve job and new valve springs and retainers and have my jun cams installed. I should have my heads back on the car in about two to three weeks. My plan just to have the cams installed has gone in a different direction. Since the heads are off I should get all the work done now. The 5 angle valve job should open the heads up even more. It's either GO BIG or GO HOME. Oh yes the heads will be off tomorrow so more pics of the block coming tomorrow.

10-31-2012, 02:52 PM	#4 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 16	The cams were just suppose to just be installed but when looking at the cam profile the stock valve springs and retainers might not be able to support the cams. After purchasing the valve train the Nissan dealership has to pull the heads off to swap out the valve train and with them off I called Gtm to actually have the head work done and at the same time reassemble the heads with the new valve train and cams installed with new arp head bolts to. I am sending the heads off today.

11-02-2012, 08:37 PM	#10 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 16	Yea it's a little more then that but if that's what they said then good. Again it's not a simple job pulling the intake side off. Also, swapping the valve train take a lot of time and then finding the correct shims is actually the longest part of the process cause there is no standard size every car is different. For each one they will have put the shim in measure and if not correct try another so on and so on.

11-05-2012, 01:58 PM	#12 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 16	Yes they said it will take about a week and half and then they will be shipping them back to me. I am also having the moderate port and polish job added to the heads now and upgrading the valves to.

11-06-2012, 11:04 AM	#14 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 16	Yes

11-06-2012, 05:13 PM	#15 (permalink)
scth83 Base Member Join Date: Mar 2010 Location: HK Posts: 18 Drives: 10 Nissan 370Z PG M6 Rep Power: 17	Did you get a reply from them in the past 2 weeks? A few email sent but no reply from them. Sent from my iPad using Tapatalk HD