| [ Total Views: 737 | Total Replies: 10 | Thread Id: 88944 ] |
|
|
 1916baja
Custom Title Time!
Posts: 1990
Threads: 176
Registered: September 20th, 2007
Member Is Offline
Location: Brisbane - Mt Gravatt
Theme: UltimaBB Pro Blue ( Default )
|
| posted on February 24th, 2011 at 05:25 PM |
|
|
F/S Brisbane: Crank
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
Custom Title Time!
Posts: 1990
Threads: 176
Registered: September 20th, 2007
Member Is Offline
Location: Brisbane - Mt Gravatt
Theme: UltimaBB Pro Blue ( Default )
|
| posted on February 26th, 2011 at 09:46 PM |
|
|
bump.. 50bucks???
|
|
|
bikecrazy
Casual Dubber
Posts: 24
Threads: 13
Registered: September 28th, 2010
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on February 27th, 2011 at 08:12 AM |
|
|
why the forged rather than cast whats sort of engine would the cast still be suitedto ?
|
|
|
1916baja
Custom Title Time!
Posts: 1990
Threads: 176
Registered: September 20th, 2007
Member Is Offline
Location: Brisbane - Mt Gravatt
Theme: UltimaBB Pro Blue ( Default )
|
| posted on 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
Super Moderator
The artist formerly known as blue74l
Posts: 12780
Threads: 734
Registered: August 25th, 2002
Member Is Offline
Location: Abbotsford, Sydney
Theme: UltimaBB Pro Blue ( Default )
|
| posted on 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
Futue te ipsum!!!
|
|
|
1916baja
Custom Title Time!
Posts: 1990
Threads: 176
Registered: September 20th, 2007
Member Is Offline
Location: Brisbane - Mt Gravatt
Theme: UltimaBB Pro Blue ( Default )
|
| posted on February 27th, 2011 at 08:31 AM |
|
|
Exactly. In much fewer words....
|
|
|
Super1302
Officially Full-On Dubber
Posts: 361
Threads: 76
Registered: July 31st, 2008
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on 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. 
|
|
|
1916baja
Custom Title Time!
Posts: 1990
Threads: 176
Registered: September 20th, 2007
Member Is Offline
Location: Brisbane - Mt Gravatt
Theme: UltimaBB Pro Blue ( Default )
|
| posted on 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
Officially Full-On Dubber
Posts: 361
Threads: 76
Registered: July 31st, 2008
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on 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
|
|
|
mangrovejack38
Seriously Crusin Dubber
Posts: 159
Threads: 70
Registered: October 19th, 2006
Member Is Offline
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 1st, 2011 at 08:06 PM |
|
|
give ya $40
|
|
|
1916baja
Custom Title Time!
Posts: 1990
Threads: 176
Registered: September 20th, 2007
Member Is Offline
Location: Brisbane - Mt Gravatt
Theme: UltimaBB Pro Blue ( Default )
|
| posted on March 2nd, 2011 at 12:44 PM |
|
|
It's all yours. I'll pm details later.
|
|
|
