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F/S Brisbane: Crank
1916baja - February 24th, 2011 at 05:25 PM

I have a 69mm counterweighted 8 dowell CAST crank. It is no good to me as i need forged. Have been told it's good for a stock engine but no good for what i'm doing....

I don't really know what it's worth, at a guess 100 bucks?? Make reasonable offer and its yours. Would swap for Forged c/w 8 dowell + cash your way...

Mick
Mt gravatt east 4122
0439002870.


1916baja - February 26th, 2011 at 09:46 PM

bump.. 50bucks???


bikecrazy - February 27th, 2011 at 08:12 AM

why the forged rather than cast whats sort of engine would the cast still be suitedto ?


1916baja - February 27th, 2011 at 08:26 AM

We'll as I have been told, the cast cranks are un reliable at high rpm, as I am building a drag motor, I will be looking at 6000 rpm plus. it could be used in a nice 1600/1916 street motor or similar. I could use it but for the way I'll be using the engine it's a risk I can't afford to take. If the crank fails at that sort of rpm its bad news. but as I said, it's fine for a lower rpm street motor.

Mick.


Bizarre - February 27th, 2011 at 08:29 AM

original stock VW cranks were forged.
It is a more expensive process - and a better product

I am 99% sure the new mexican 1600's have a cast crank

That said, there is nothing wrong with a cast crank in a stock rev range.

I just wouldnt build a motor that revs to 7,000 and expect the crank & case to last


1916baja - February 27th, 2011 at 08:31 AM

Exactly. In much fewer words....


Super1302 - February 27th, 2011 at 05:04 PM

cast cranks are more maleable, my brother runs a scat in his chev 383 and it has 350 at the wheels.
cast cranks are far more forgiving and handle harmonics and imbalances better. maleable - less rigid.
who here has had a cast crank and has had one fail and in what way was the car used ? theyre good
for 600 or so HP. :yes:


1916baja - February 27th, 2011 at 05:20 PM

I dunno, I'm just not gonna risk it due to advise from a very reliable source with a hell of alot of vw drag racing experience. The scat cast cranks for vw's are advertised for use under 5500rpm.

50 bucks and it's yours.
Mick.


Super1302 - February 27th, 2011 at 05:27 PM

i am not in the market, stick on ebay if you have to.
you might get some good offers to those that are not on the forum:cool:


mangrovejack38 - March 1st, 2011 at 08:06 PM

give ya $40


1916baja - March 2nd, 2011 at 12:44 PM

It's all yours. I'll pm details later.