Jun reply to my cam shaft email
 

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,

260000 jpy that works out to more than USD3000. You will not get bang for buck with this install that I'm sure.

So they've got you replacing the VVEL assembly?

the thing that i need to understand is that will buying the cams alone without wht jun mentioned work fine with the oem parts or will i have replace them with these parts and also how agressive are they

may not be just a plug and play install since lift are higher on these cams.

Looks like it:ugh2:

problem is that when Jun put these up for sale they didnt provide much info if any at all

So my take away:

power gains are probably pretty modest. They are claiming ~358 hp with the full support setup, which based on the structure of the quote, I am presuming necessary. Of course, power throughout the range is far more important that peak...I'm interested in seeing a (third-party) dyno.

The support setup is pretty pricey...of which, the only really pricey part is the VVEL actuator...I'd be curious to understand what is needed here. Are they replacing it with a new stock part since they are tampering?

if i take this whole setup how will that affect install and tuning?

If I had the stones and spare money hiding in my couch, I would jump on it. Fact is, it takes more money to increase power on an NA vehicle over a FI one. Most likely someone investing money in these cams, valvetrain and pistons will most likely have all the Bolt on's already on the car. And just an educated guess, I would say pushing 400hp from a NA Z would be more impressive than a 500whp turbo kit. It may not be faster, but I'm sure it will sound like it :driving:

So if I take the full jun package what kind of install are we looking at is it complicated and what kind of tune will be needed will uprev do?

Good luck bro,

Just make sure to mention that your car is AT just incase..

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.

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

Someone please by the kit and do before and after dynos :tup: