Broke a poncam, can i replace with procam?

[Lopin18]

While installing the exhaust one i didnt notice that the lobes where in the wrong position so the last one was under pressure and it snapped.... f**k me

Now im trying to see how to replace it. i cant seem the find the exhaust only poncam.

 

RB25 Neo, 260 dur poncam type B 9.15 mm lift.

 

All the ones im finding as a single cam are the procams, can i actually replace my broken poncam with a procam with the same duration and lift without issues? or is there something different? i keep reading the poncam is adjusted to stock timing etc but i dont see that on the procam so its kind of confusing.

 

 

 

 

[GTSBoy]

Just ring Kelfords.  Abandon that shitty Poncam stuff.

[Lopin18]

Lol whats the recommendation for kelfords? This is a drift car so im looking for low-mid response

[mlracing]

Poncam just come as a set as far as I can see

[djr81]

RHD list them individually. EG

https://www.rhdjapan.com/search/engine/nissan_skyline_er34-rb25det-08-2000-06-2001/model/nissan_skyline/car/nissan/?q=tomei

[Leroy Peterson]

Have bought JUN individually through RHD, was made to order so was like 1+ months till posted.

 

Also, I think generally procam have stronger ramp rates and tomei recommend retainers and upgraded springs. Poncam is supposedly drop in stock upgrades.

 

 

[Lopin18]

Poncams seems to be a set everywhere i look, procams tho are sold individually, but now that u mention the ramp rates etc... i dont know much about cams. 

If i get a procam 260, 9.15mm lift, what makes it different from say a poncam? ramp rate, i thought cams only had 2 variables, duration and lift.

Kelfords are out of my budget for now.

Seems my option would be to get an exhaust procam or just go with the intake camshaft only. Dont know what that would mean.

[djr81]

Are these the specs you want?

Duration (degree):
--- Intake: 256
--- Exhaust: 256
-- Max Cam Lift(mm):
--- Intake: 8.50
--- Exhaust: 8.50

Cams have lots of variables. Lobe centre, ramp rate, base circle diameter....

 

[r32-25t]

The procam with the poncam specs is a poncam just sold individually 

[Leroy Peterson]

If i get a procam 260, 9.15mm lift, what makes it different from say a poncam? ramp rate, i thought cams only had 2 variables, duration and lift.

Designing cams is a world of its own, and the information on paper and specs you buy tell half the story.

One option I forgot is it's possible to get your cams doctored... Clive cams or crow cams might be able to make copies of your cam. I went to Clive cams for mine when the lobes were damaged but their machines couldn't do over 10mm lift

[TXSquirrel]

Not sure why all the guesses about Poncams vs Procams.  Tomei's own website says it's the same.

[Lopin18]

Jeez, how dumb do i feel now, i checked that page like 20 times but i didnt notice the big note. Thanks man!

[TXSquirrel]

On 5/14/2018 at 10:56 AM, Lopin18 said:

Jeez, how dumb do i feel now, i checked that page like 20 times but i didnt notice the big note. Thanks man!

Sure thing!  There are instances that one would say oh crap! after miss reading something, but this is a rare instance which you get say oh good!  ?