View Full Version : 8K RPM chains
LGAFF
10-18-2009, 10:03 PM
These guys/Cloyes do IRL car chains....wondering if they can make an 8K chain for us? Sent them a note......are the tensioners able to hold up at 8K? Better yet, they are in our back yard.
http://www.cloyes.com/Portals/10/Images/Logos/Dynagear.jpg
In 2002, Cloyes purchased the assets of Dynagear, our largest competitor in the aftermarket, located in Downers Grove, IL. We consolidated some of their personnel and also their manufacturing capabilities into our new chain facility in Naperville, IL, where we manufacture all of our chain products. We continue to operate and market under both the Cloyes and Dynagear brand names throughout the US and global aftermarket.
Ccmano
10-18-2009, 11:03 PM
Interesting thought, the next question is, can the valve springs handle 8k rpm? Seems like building the chain would be the easy part.
H
:cheers:
LGAFF
10-18-2009, 11:08 PM
True, what other weak points would there be? Maybe a question for Graham Behan(sp)
Aurora40
10-19-2009, 09:28 AM
Interesting thought, the next question is, can the valve springs handle 8k rpm? Seems like building the chain would be the easy part.
H
:cheers:
It wasn't the easy part for the LT5, according to HotB. Apparently the routing angles are kinda sharp in order to keep the width of the engine down.
Bob G
10-19-2009, 10:39 AM
I would Like New Chains 8000 Would be a plus
cward
10-19-2009, 11:14 AM
You might try to find out what chains Fastlane used. He was shifting well over 8K. I was told by Graham that stock chains and lifters were good to 8K. I had mine to 7800 with no mods to chains or lifters. Pete is probably shifting over 8K with all his lightening of the internal parts. Going that high is useless without extensive porting and polishing with headers and very low restriction exhaust and probably cams. Just my opinion.
Curtis
flyin ryan
10-19-2009, 11:42 AM
Going that high is useless without extensive porting with headers and very low restriction exhaust and probably cams. Just my opinion.
CurtisYour opinion is right on.
Lee,if you wanna do it for durability and keeping the prices low then it would be good.
Don't make the main chain we have a low cost replacement for that.
I have my rev limiter set at 7700,
i almost always bounce of it in the burn out box,
shift light set at 7200,scanner shows me 7400 by the time i react to the shift light.
peak power comes in @ 6800-6900,
67k miles with no issues,knock on wood.:)
Curtis, my buttom end has never been apart all stock.
If you make some i'm in for a set.
Pete
P.S.
longer chains, taller deck :-D
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LGAFF
10-19-2009, 05:19 PM
Response from Cloyes....
Lee:
All parts made are based off volume. We generally don’t take on one piece jobs. If you have a project in the making with an annual volume it will be considered.
Thanks,
Tech
Hammer
10-19-2009, 11:31 PM
Response from Cloyes....
Lee:
All parts made are based off volume. We generally don’t take on one piece jobs. If you have a project in the making with an annual volume it will be considered.
Thanks,
Tech
Turds
LGAFF
10-19-2009, 11:45 PM
http://i134.photobucket.com/albums/q115/lgaff/lgcosworth_gear_train.jpg
bdw18_123
10-20-2009, 12:24 AM
http://i134.photobucket.com/albums/q115/lgaff/lgcosworth_gear_train.jpg
:jawdrop: What in the...? :icon_scra
Well, that's one way to do it, LOL!
What is that from, some kind of prototype? Maybe from the fabled 2nd Gen LT5 (Do any pics of the 2nd gen LT5 exist by the way?)?
LGAFF
10-20-2009, 07:14 AM
Cosworth indy car motor
Paul Workman
10-20-2009, 08:02 AM
And, if memory serves, that engine ran upward of 11,000 rpm, no?
VetteVet
10-21-2009, 01:49 AM
Anyone know any good Swiss watchmakers??
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