Headstuds WBX

fastback · Post by **fastback** » Fri Dec 05, 2008 10:10 am

The MV piston that i cut of , was broken.
big lump of it ,missing

Detonation.

Here's a pic of the cylinders.

51MAN · Post by **51MAN** » Sat Dec 06, 2008 1:18 am

Cool... what engine? can they be machined in a lathe? spun cast normally cannot, has to be ground.... so I am told...

fastback · Post by **fastback** » Sat Dec 06, 2008 2:07 am

My part's pusher tolde Volvo truck or something . can check it out.
These are popoular cylinders used in some autocross engines here. and have not heard that they are a problem to machine??
almost all cast cylinders can be machined easily as far as i have heard.

Der_Butzelmann · Post by **Der_Butzelmann** » Mon Dec 08, 2008 12:06 pm

fastback wrote:My part's pusher tolde Volvo truck or something . can check it out.
These are popoular cylinders used in some autocross engines here. and have not heard that they are a problem to machine??
almost all cast cylinders can be machined easily as far as i have heard.

Hi. The jugs are probably from a Volvo TD70 Truck engine. Have been looking for someone selling used ones in Norway, but without any luck. Where did you get hold of yours, fastback? If you don`t mind to tell me that is

fastback · Post by **fastback** » Mon Dec 08, 2008 12:12 pm

a friend of a friend of a friend. from langt oppi dal'n

oes · Post by **oes** » Fri Dec 19, 2008 12:33 am

Its probably not TD 70 liners, since they are 104.7mm. These are regulary used in T4 autocross engines in Norway. TD 60 are 98.4mm. So its probably those in the picture. TD 50 have 95.25mm bore.

oes · Post by **oes** » Fri Dec 19, 2008 12:41 am

No problem machining these in a lathe with carbide tools. I have done it many times, both Volvo and Deutch liners.

fastback · Post by **fastback** » Fri Dec 19, 2008 12:46 am

yes it's the TD-60

marcotheturbosteamengine · Sun Dec 21, 2008 11:03 am

raceware do head studs for the wbx ,in stock lenght, in stainless, in 220,000psi materail, very good , $300!?!? when i got them for my motor, never had a problems with the stock ones, but i thought i better upgrade, iv run 37psi on the raceware studs.
good luck marco mansi...

DORIGTT · Post by **DORIGTT** » Sun Dec 21, 2008 4:04 pm

Hey Marco,

Have you had any issues with sealing with those Raceware studs?

I ask because I hear they have the correct inner thread, but the outer thread is an SAE thread which doesn't allow us to use the std WBX cap/nut that supposedly prevents oil and water from mixing. Have you seen any issues?

marcotheturbosteamengine · Mon Dec 22, 2008 5:40 am

thay have the correct thread at both ends! the are made for the wbx.

fastback · Post by **fastback** » Mon Dec 22, 2008 7:14 am

thx marco.
what's the diameter of the raceware studs?

DORIGTT · Post by **DORIGTT** » Mon Dec 22, 2008 4:04 pm

marcotheturbosteamengine wrote:thay have the correct thread at both ends! the are made for the wbx.

I was mis-informed then. I was told that the inner threads were fine, but the outers would not allow us to use the factory nut/fastener.

Thanks for clearing that up for me.

marcotheturbosteamengine · Mon Dec 22, 2008 4:26 pm

they are 8mm in the center just like the stock ones, its the materal they are made with that is special, like arp2000 rod bolt materal, 220.000psi strength, i have never had a problem.

buildabiggerboxer · Post by **buildabiggerboxer** » Thu Oct 01, 2009 9:45 am

an old thread i know, but just seen it, here's the okrasa race kit studs as supplied for my 2500, these are 10mm, nos 8mm set as installed in my 2100 turbo for comparison.