Hi Guys
A company here in Australia is making me a billet 3.750 inch crank for a Holden V8
It will have lightening holes through the big ends like lots of other cranks, but he i also going to put a hole up the centre of the crank.
Do you guys think this is good or bad.
I am worried it will loose strenght.
Trev
CRANKSHAFTS
Moderator: Team
Re: CRANKSHAFTS
Gun drilled cranks are no problem.Trev wrote:Hi Guys
A company here in Australia is making me a billet 3.750 inch crank for a Holden V8
It will have lightening holes through the big ends like lots of other cranks, but he i also going to put a hole up the centre of the crank.
Do you guys think this is good or bad.
I am worried it will loose strenght.
Trev
www.crower.com
www.scatcrankshafts.com
Lots more I don't know if Winberg cranks have a web site but the prettiest and lightest cranks i've even seen!
Tom K.
www.tkrace.com
tkracehead@hotmail.com
I love motorsports because all other sports require only 1 ball!
Cheap...Powerful....Reliable...Choose only 2 of the 3
www.tkrace.com
tkracehead@hotmail.com
I love motorsports because all other sports require only 1 ball!
Cheap...Powerful....Reliable...Choose only 2 of the 3
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Re: CRANKSHAFTS
The OEM cast Corvette 5.7L LS1 crank is drilled completely thru the center. It has a stamped plug pressed into the end to seal the hole. A truck crank I saw did not have the thru hole.Trev wrote:Hi Guys
A company here in Australia is making me a billet 3.750 inch crank for a Holden V8
It will have lightening holes through the big ends like lots of other cranks, but he i also going to put a hole up the centre of the crank.
Do you guys think this is good or bad.
I am worried it will loose strenght.
Trev
Eliminating this mass on the centerline has almost no offect on rotating inertia, and not a lot on strength. While it doesn't save a kilo, GM engineers were allowed to spend a few bucks for every kilo of mass they could eliminate from the original C5 design.
Re: CRANKSHAFTS
OldSStroker wrote:The OEM cast Corvette 5.7L LS1 crank is drilled completely thru the center. It has a stamped plug pressed into the end to seal the hole. A truck crank I saw did not have the thru hole.Trev wrote:Hi Guys
A company here in Australia is making me a billet 3.750 inch crank for a Holden V8
It will have lightening holes through the big ends like lots of other cranks, but he i also going to put a hole up the centre of the crank.
Do you guys think this is good or bad.
I am worried it will loose strenght.
Trev
Eliminating this mass on the centerline has almost no offect on rotating inertia, and not a lot on strength. While it doesn't save a kilo, GM engineers were allowed to spend a few bucks for every kilo of mass they could eliminate from the original C5 design.
Couldn't you just offset the stock crank to the 3.75? I know Bret is going to do that to my crankshaft. It would be cheaper than an aftermarket crank for the most part.