Jun reply to my cam shaft email

Red__Zed · 03-03-2012, 04:57 PM

Quote:

Originally Posted by Jordo!

339 ps for cams alone is NOT worth it.

That is going to be less than a 6 hp gain to the CRANK, and I can pretty much guarantee you they are talking flywheel hp and NOT whp.

Even 363 bhp (again flywheel) is not worth it for the full build, given the costs they laid out (over 3 grand USD in parts -- that's not counting labor and tuning).

363 ps/358 bhp is about 300 whp.

Pass.

You know the 339ps is for a muffler, right?

G37sHKS · 03-03-2012, 04:57 PM

If it gives more than 20 WHP (assuming that the vehicle have all the bolts on and tune) then i think it worth it.

roplusbee · 03-03-2012, 06:32 PM

This would be interesting if it would help with spool-time (FI) or low end grunt, but not that interesting to me for increasing top end power. The Z does pretty good @ 4k and above. We just need something for the lower RPM situations!

Skull Crusher · 03-03-2012, 11:15 PM

Not the right cams for forced induction. These are design for a naturally aspirated engine. I believe GTM has cams for an FI kit.

Jordo! · 03-04-2012, 01:15 AM

Quote:

Originally Posted by Red__Zed

You know the 339ps is for a muffler, right?

Quote:

Originally Posted by G37sHKS

If it gives more than 20 WHP (assuming that the vehicle have all the bolts on and tune) then i think it worth it.

Okay... well get a quote from someone you like on labor for opening the head and installing new cam.

If the numbers work out for you (or if you can do it yourself), go for it!

For me, it sounds like headache + expensive + unsure how the car will run.

Staples · 03-04-2012, 02:35 AM

Quote:

Originally Posted by Jordo!

Okay... well get a quote from someone you like on labor for opening the head and installing new cam.

If the numbers work out for you (or if you can do it yourself), go for it!

For me, it sounds like headache + expensive + unsure how the car will run.

Correct... It's going to take a good 10 - 12 hours of labor in order to get these in. $4,000+ for 20 - 30whp? No thanks, I'll put that towards a supercharger or turbo.

G37sHKS · 03-04-2012, 02:40 AM

Quote:

Originally Posted by Jordo!

Okay... well get a quote from someone you like on labor for opening the head and installing new cam.

If the numbers work out for you (or if you can do it yourself), go for it!

For me, it sounds like headache + expensive + unsure how the car will run.

You are 100% right about what you said..

But if he have the money and dont mind paying that amount of money then why not?

Jordo! · 03-04-2012, 04:29 AM

Yeah... and some utterly selfish part of me hopes he or someone else does do it to prove me right/wrong, 'cause data > theory.

That said... I'd feel way better about anyone doing it if we could tune VVEL.

Yeah, yeah... VVEL for intake cam, but again, intake and exhaust have to be clocked in harmony... one remains untunable and the other will be fixed but different. That sounds too sketchy to me, especially on new fairly expensive sports car.

sixpax · 03-04-2012, 06:19 AM

Quote:

Originally Posted by G37sHKS

You are 100% right about what you said..

But if he have the money and dont mind paying that amount of money then why not?

It's easy to say "it won't work" or "it's not worth it". I feel like the 370 has been around long enough at this point where we can start seeing some new things experimented with instead of just the normal boring bolt-ons.

jdmlove · 03-07-2012, 12:47 AM

Quote:

Originally Posted by zuperman 370

Hey all so there has been a lot of talk about this jun camshaft I am looking into installing them, but don't know anything about them yet for example if they will need support mods or it will be ok to use them with oem springs etc, if a tune will be needed and how aggressive the cams are, well jun replied to my email and this is exactly what they wrote, now I'm neither a technician nor do I have any idea what so ever wht all his means so please ppl chime in and help me make my decision with these, below is Jun's replant my email:

1. First stage : stock cams, stock ex manifold, stock catalistic
convertor, Sport Muffler **339ps
2. 2nd stage : + high comp piston kit and JUN ex cams *363ps

The quote
1. EX cams *jpy 48,000
2. F ccover O-ring *2pc *jpy 856
3. F cover o-ring *2pcs *jpy 856
4. F cover o-ring *1pcs *jpy 440
5. F cover o-ring *1pc *jpy 428
6. Water pump o-ring *2pc *jpy 1108
7. Oil pan o-ring *2pc *jpy 856
8. valve lifters *12pcs *jpy 44,892
9. Roker cover packin *2pc *jpy 3350
10. Roker cover packin 2pcs *jpy 3350
11. Gasket solenoid *2pc *jpy 1008
12. VVEL controll actuator assy *2pcs *jpy 110,880
****have to replace manual but we use them again
13. Clutch release bearing *jpy 13,230
14. Seal material *jpy 3150
15. Transfer charge to Burunei *jpy 25,000
16. Bank fee *jpy 3,000
Total *jpy 260,404
In stock
Thank you,

WHY TRANSFER TO BRUNAI! yesterday night i saw u in Bahrain!!!

Jordo! · 03-07-2012, 03:50 AM

Quote:

Originally Posted by whoLEEoh

Those are dyno number not flywheel. And it's still a 27ish whp gain on just cams and pistons. If you gain that much while being full bolt on then I think it's worth it. But if I'll only see 10whp it's not

Those looked like engine dyno numbers, not chassis dyno numbers... thus, to the crank.

Unique_Z · 03-07-2012, 12:53 PM

Quote:

Originally Posted by zuperman 370

1. First stage : stock cams, stock ex manifold, stock catalistic
convertor, Sport Muffler **339ps
2. 2nd stage : + high comp piston kit and JUN ex cams *363ps

The quote
1. EX cams *jpy 48,000
2. F ccover O-ring *2pc *jpy 856
3. F cover o-ring *2pcs *jpy 856
4. F cover o-ring *1pcs *jpy 440
5. F cover o-ring *1pc *jpy 428
6. Water pump o-ring *2pc *jpy 1108
7. Oil pan o-ring *2pc *jpy 856
8. valve lifters *12pcs *jpy 44,892
9. Roker cover packin *2pc *jpy 3350
10. Roker cover packin 2pcs *jpy 3350
11. Gasket solenoid *2pc *jpy 1008
12. VVEL controll actuator assy *2pcs *jpy 110,880
****have to replace manual but we use them again
13. Clutch release bearing *jpy 13,230
14. Seal material *jpy 3150
15. Transfer charge to Brunei *jpy 25,000
16. Bank fee *jpy 3,000
Total *jpy 260,404
In stock
Thank you,

Wait, you're giving me this kit? lol jk

Skeeterbop · 03-07-2012, 08:13 PM

This has me back on the fence again. I had convinced myself to get a TT kit after my next deplpyment, but now this has me thinking of going back to what I really would like to do which is build the motor up N/A. If you go through with this zuperman 370, I would be curious to hear how it affects the powerband more than any ultimate top end gains. As somebody already mentioned, above 4k rpm it already does pretty good. I'm subscribing for results!

03-03-2012, 06:32 PM	#18 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	This would be interesting if it would help with spool-time (FI) or low end grunt, but not that interesting to me for increasing top end power. The Z does pretty good @ 4k and above. We just need something for the lower RPM situations! __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

03-04-2012, 04:29 AM	#23 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Yeah... and some utterly selfish part of me hopes he or someone else does do it to prove me right/wrong, 'cause data > theory. That said... I'd feel way better about anyone doing it if we could tune VVEL. Yeah, yeah... VVEL for intake cam, but again, intake and exhaust have to be clocked in harmony... one remains untunable and the other will be fixed but different. That sounds too sketchy to me, especially on new fairly expensive sports car. __________________ Enjoy it. Destroy it.

03-07-2012, 08:13 PM	#28 (permalink)
Skeeterbop A True Z Fanatic Join Date: Jan 2011 Location: Fort Bliss, TX Age: 40 Posts: 1,440 Drives: 2011 GM 370 base SP Rep Power: 16	This has me back on the fence again. I had convinced myself to get a TT kit after my next deplpyment, but now this has me thinking of going back to what I really would like to do which is build the motor up N/A. If you go through with this zuperman 370, I would be curious to hear how it affects the powerband more than any ultimate top end gains. As somebody already mentioned, above 4k rpm it already does pretty good. I'm subscribing for results! __________________ Srenity: "Yeah no rest needed to spread the love when your 20 that's for sure...."

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Forged Performance GT-R Vs. Ferrari F430GT Video, I wish I filled up my tank. Reply	Tray@Forged	Forged Performance	6	04-14-2013 06:08 PM
email notice	sonic370	The370Z.com Feedback, Suggestions & Questions	3	10-09-2011 08:37 PM
2nd Drive Shaft Replacement at 10K Miles	chemi19	Engine & Drivetrain	13	07-31-2011 05:46 AM
PM reply to multiple	daisuke149	The370Z.com Feedback, Suggestions & Questions	0	10-06-2010 09:43 PM
Carbon Fiber Drive Shaft	jetguy	Engine & Drivetrain	19	06-14-2010 09:47 AM

03-03-2012, 04:57 PM	#17 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	If it gives more than 20 WHP (assuming that the vehicle have all the bolts on and tune) then i think it worth it.

03-03-2012, 11:15 PM	#19 (permalink)
Skull Crusher Base Member Join Date: Dec 2011 Location: NM Posts: 69 Drives: 2011 370Z Nismo 0478 Rep Power: 14	Not the right cams for forced induction. These are design for a naturally aspirated engine. I believe GTM has cams for an FI kit.