hey there, does anyone know if their's a company that can make hollow camshaft??

i've searched and only found Nippon Piston Ring, they can do hollow/composite camshaft, but I can't find on their website a way to communicate with them unless I'm a company!!

a camshaft that would be almost 40-50% lighter with agressiv lob for vtec would be exactly what I would want from a camshaft!! (going to see high rev at the track, building it for 10K with agressiv tranny ratio, that's where I need the high rev!!)

 

todaracing.com

 

ok, i'll check with them, but they don't seem to do custom ones

 

they don't!! any other company in mind??

 

Why would you want a hollow camshaft for high revs?!? It's not like it has any reciprocating motion or anything, and you can save a lot more weight elsewhere. btw Honda experimented with hollow camshafts in the early HF engines. They broke. A LOT!

 

well, if the camshaft is lighter, won't the camgear need less energy to turn them so the the reving will be faster and more stable at higher RPM??

If I'm wrong with that I won't search for hollow camshaft for sure, but if it's like this I've seen somwhere that for evry 25% of weight reduction, you higher the red line by 500rpm, unless it only works with the weight of the valve

if uneccessary I'll go with web camshaft, it's someone here that have recommed them for custom grind!! hope they are good!!

 

The Toda vtec killers are the only ones I have seen that are hollow.


The hollow cam idea is interesting but performance gains are probably very minuscule.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrackWeapon &raquo;</TD></TR><TR><TD CLASS="quote">well, if the camshaft is lighter, won't the camgear need less energy to turn them so the the reving will be faster and more stable at higher RPM??

If I'm wrong with that I won't search for hollow camshaft for sure, but if it's like this I've seen somwhere that for evry 25% of weight reduction, you higher the red line by 500rpm, unless it only works with the weight of the valve </TD></TR></TABLE>

Your theory is somewhat correct, however you aren't considering the location of the weight in the camshaft which will determine whether the presence of that weight will have any effect. Weight concentrated in the center has virtually no effect as it is perfectly balanced in the center.

 

lol at the go go gadget search button...about the cams you could get a light flywheel and knock off alot more wieght and get alot faster throttle response if thats what your looking for,if you want more rpm's then cams are what you want

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">

Your theory is somewhat correct, however you aren't considering the location of the weight in the camshaft which will determine whether the presence of that weight will have any effect. Weight concentrated in the center has virtually no effect as it is perfectly balanced in the center. </TD></TR></TABLE>

well i haven't see it that way but it make senses!!

spaceman, already going with tilton carbon/carbon clutch assy (6.7lbs flywheel with 5.3lbs clutch)

and when you say the cams, you must be talking about more agressive ones??