austemper vs billet camshafts

[tpsecret6]

Does any one know the failure rate from billet to austemper?
Whats most 10.50 any slower cars with hyd roller setups use?
From my understanding to use a billet they req. machining,use of odd fire timing cover etc. to make work. Are there any vendors with every thing u need in a kit to run a billet camshaft. Is the extra couple hundred worth the billet. Im use to running solid roller ford and chevy camshafts, austemper is new to me. Some one plse help im ready to order and im torn bet. the 2.

 

[Otto J]

Call DLS,They are a vendor here.
Dan can set you up with a kit,No special cover needed
.I say run a hydraulic roller just for the peice of mind the you wont end up
with a flat lobe and metal thru your motor
The flat tappet hydraulics can be a crap shoot

 

[tpsecret6]

thanx J but i should been a little clearer I do agree that the hyd roller is def. much better and that is what i will go with but the (materials) in which each is made of is whats got me screwed the austemper is a hyd roller too. Ill Try DLS.Thanx

 

[V6gofast]

Roller Core

To the best of my knowledge there have been no failures since the austemper cores became available. I would not hesitate to recommend
it in a dual purpose car. The only time a 8620 core is used is in an all
out race engine with very high spring pressures. Plus the cost is about
400.00 cheaper.

 

[tpsecret6]

Thanks Dan, thats the info I was looking for I feel alot better about the austemper Especially with it coming from a reliable source ive actually been referred to u by quite a few people here in Mich. The order will be going thru pretty soon. Thanx again!

 

[GNTIM]

After I purchased my austempered Comp cam 3.5 years ago I was paranoid that I may have made a bad decision or I was a "guinea pig". But I have had no problems and everybody I have talked to or heard opinions from have all been positive.

 

[IL KIM]

Weber Racing sells a billet roller cam kit with everything you need. Even comes with valve springs (130lb) and new front timing chain set. It's a proven kit with history behind it. They will even machine your front cover for you (simple spot facing) for free.

 

[ijames]

Are there any issues with either the billet cams or the austemper cast ones as far as the gear on the cam sensor? Are all the Buick cams compatible with the stock cam sensor gear?

 

[SNOWBIRD]

how much more valve train noise ...roller vs flat tappet I love to listen to a silent 10 second engine

 

[IL KIM]

I bought a "polygear" from Weber to replace the steel gear. They look alike, but the polygear is more forgiving and it won't leave metal shavings in the engine. The gear was actually made by BOP engineering. Jason Carter uses a non-metal gear as he had issues from what I hear. You may save a little going directly to them. Can you tell which is the polygear?

 

[ijames]

Are there any issues with either the billet cams or the austemper cast ones as far as the gear on the cam sensor? Are all the Buick cams compatible with the stock cam sensor gear?

Anyone else? Dan or Mike ?

 

[bison]

Anyone else? Dan or Mike ?

I had noticeable wear on my cam sensor drive gear (actually the driven gear) after 30k miles with a modular billet set up. I never really researched it too much to find out why. Could be a little misalignment or maybe the supplied drive gear is machined at a slightly different helix angle. Wear was not enough for concern in my application.

 

[Turbo1dr]

I had noticeable wear on my cam sensor drive gear (actually the driven gear) after 30k miles with a modular billet set up. I never really researched it too much to find out why. Could be a little misalignment or maybe the supplied drive gear is machined at a slightly different helix angle. Wear was not enough for concern in my application.

Wear is caused by a high volume/pressure oil pump.

 

[Race Jace]

Wear is caused by a high volume/pressure oil pump.

no that is not it.

I have checked the alignment on several motors and the gear profile on the gears and i have not found anything wrong yet. so far the best thing to do is the composite gear. I have a couple of thousand miles on it and will check it soon to see what is happening.

 

[Lee Thompson]

Wear is caused by a high volume/pressure oil pump.

Many are running HV pumps with a stock type cam without wear.

The only way to stop gear wear is to OIL both gears. The factory had an oil path to the cam sensor gear. I had a post in Stage II tech last year as how to completely stop gear wear, Tried and proven. I went through 3 sets of gears before I solved it.

 

[9SECVSIX]

Lee...

do you have the link to that post? Thanks!

 

[bison]

Wear is caused by a high volume/pressure oil pump.

Nope. It was a blueprinted stock pump and cover. I would have expected even more with a high volume pump.

 

[ijames]

do you have the link to that post? Thanks!

http://www.turbobuick.com/forums/stage-ii-tech/182964-distributor-gear.html

Lee, would it be possible to drill the camshaft like the stocker?

 

[John Wilde]

To the best of my knowledge there have been no failures since the austemper cores became available. I would not hesitate to recommend
it in a dual purpose car. The only time a 8620 core is used is in an all
out race engine with very high spring pressures. Plus the cost is about
400.00 cheaper.

Dan,

What does an austemper set up go for?
Also what grinds do you offer or all they all custom?

 

[Race Jace]

Many are running HV pumps with a stock type cam without wear.

The only way to stop gear wear is to OIL both gears. The factory had an oil path to the cam sensor gear. I had a post in Stage II tech last year as how to completely stop gear wear, Tried and proven. I went through 3 sets of gears before I solved it.

food for thought
maybe that is why the composite gears appear to have some success, they require less lubrication.

I machined my upper cam gear and cam so it would draw the oil through and have the gear act like a fan to pull any residual oil toward the gears.

i did both of these mods at the same time so i do not know what solved the problem exactly.