Toyspeed.org.nz Message Board

by **RunningRich** » Fri Jul 01, 2011 9:11 am

Mr Revhead wrote:Hell my 1963 Imp has a stock forged crank!

But how do you know it is forged? :lol:

This thread has to win the award for the most posts of opinion/half-truths stated as fact.

by **Mr Revhead** » Fri Jul 01, 2011 9:14 am

Coz I looked at it.
But even before I could look at it my research told me it was via factory documents

http://www.imps4ever.info/tech/kuzmicki.html

OMG so shiny! · by **Dell'Orto** » Fri Jul 01, 2011 10:56 am

And more on the original topic, Colliers in Levin told me they can do billet cranks if you so wish, not cheap though! I imagine Precision Engineering in Auckland could also do them (They do quad rotor eccentric shafts)

by **Rookie** » Fri Jul 01, 2011 11:55 am

To throw a spanner in the mix;

Forged cranks are better than billet.

Discuss...

by **Celica RA45** » Fri Jul 01, 2011 6:10 pm

gee this got out of hand real quick
dellorto how much are we talking about to get these made up

OMG so shiny! · by **Dell'Orto** » Fri Jul 01, 2011 7:19 pm

Was a couple of years ago I spoke to him about it (was for some sort of Fiat race car from memory) but was in the vicinity of $7k

by **Rookie** » Fri Jul 01, 2011 8:03 pm

If you are really interested in a custom crank I would give Bob Denson of Denco Engineering a ring.
http://www.finda.co.nz/business/listing/p634/denco-engineering-1987-ltd/

I can't personally recommend his work as I have never used it, Friends have recommended him though. If his pre 65 Anglia is anything to go by he is pretty good

OMG so shiny! · by **Dell'Orto** » Fri Jul 01, 2011 10:20 pm

Denco pistons are heavy as all hell if thats any indication

by **Celica RA45** » Sun Jul 03, 2011 5:33 pm

hi guys found a few people in the states that can make them as well
thanks to every 1 imput

by **Grrrrrrr!** » Sun Jul 03, 2011 5:41 pm

Rookie wrote:To throw a spanner in the mix;

Forged cranks are better than billet.

Discuss...

forged crank = grain flows the correct way everywherre
Billet crank = grain flows correct way through journals but not through the throws/couterweights

by **4agtepwr** » Sun Jul 03, 2011 5:57 pm

Denco cranks are pretty cool, very nice work, we have ground a few at work before, Id say there rather pricey though, pretty sure there made of 4340 high tensile billet from memory but you would be best to ring him and have a yarn, Im guessing there not cheap as there hand made and one off's though

by **DFECTED** » Mon Jul 04, 2011 10:05 am

from the left, cast iron, cast steel, forged.

What everyone is getting confused about is induction hardened or nitrided cast steel cranks from factory

If you do a google image search cast steel and forged steel crankshafts you end up at the scat website and yes, there is a obvious difference

by **xsspeed** » Mon Jul 04, 2011 10:16 am

Celica RA45 wrote:hi guys found a few people in the states that can make them as well
thanks to every 1 imput

Purely out of interest - does no-one do it in Australia?

by **Mr Revhead** » Mon Jul 04, 2011 3:12 pm

DFECTED wrote:

from the left, cast iron, cast steel, forged.

What everyone is getting confused about is induction hardened or nitrided cast steel cranks from factory

If you do a google image search cast steel and forged steel crankshafts you end up at the scat website and yes, there is a obvious difference

Is that a wide forging mark on that middle one? Hard to tell from those pics. One on the right and been fully machined if it's forged.
At a glance (can't be sure from net pics) I'd have said those are Cast iron, forged then cast steel + machined or billet. Whichever it is I'd guess that it's had quite a bit more machining than the other 2

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any one in NZ make billet cranks for 3sgte /ge

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