Hi-perf Rod's suitable for 24mm WBX wrist pin

fastback · Post by **fastback** » Sat Nov 18, 2006 4:29 am

I Will replace my stock WBX rods with some Hi perf ones.
Any tips og rod's that has more "meat" in the small end to accept the larger 24mm WBX bushing?
It's a turbo engine.stock length

joop · Post by **joop** » Sat Nov 18, 2006 1:25 pm

How about these:

http://www.cbperformance.com/catalog.asp?ProductID=1513

fastback · Post by **fastback** » Sat Nov 18, 2006 2:30 pm

yes i have looked at those and they seemed to have enough material to accept the larger WBX wristpin.

joop · Post by **joop** » Sun Nov 19, 2006 3:53 am

I will order a set H-beam's and a set 24mm bushings soon. I will turn down the OD of the bushings if needed and bore ID of the smallend. I'm told they are big enough at the smallend

Look also on: http://shoptalkforums.com/viewtopic.php ... 646b90c49e

Joop

akciddento · Post by **akciddento** » Tue Nov 21, 2006 6:24 pm

is there not a suitable h beam available from aircooled .net ?
i need to order some new rods and i thought i could get them direct with the correct pin size ??

joop · Post by **joop** » Wed Nov 22, 2006 1:22 am

akciddento wrote:is there not a suitable h beam available from aircooled .net ?
i need to order some new rods and i thought i could get them direct with the correct pin size ??

I will look if they have them, thanks!

WBX Man · Post by **WBX Man** » Wed Nov 22, 2006 4:07 am

akciddento wrote:is there not a suitable h beam available from aircooled .net ?
i need to order some new rods and i thought i could get them direct with the correct pin size ??

Is there anyboby who can comfirm this, before I write them an e-mail ?

I looked at their page and fund some I-rods (stock WBX rods are 5,394 right!?) that I would love to have with 24mm pin

WBX Man · Post by **WBX Man** » Wed Nov 22, 2006 4:49 am

joop wrote:How about these:

http://www.cbperformance.com/catalog.asp?ProductID=1513

They look damm nice.. but is it posible to convert it to 24mm !?

joop · Post by **joop** » Thu Nov 23, 2006 11:09 am

WBX Man wrote:
joop wrote:How about these:

http://www.cbperformance.com/catalog.asp?ProductID=1513
They look damm nice.. but is it posible to convert it to 24mm !?

Every machine shop can do it, Here are the smallend bearings

http://www.csp-shop.de/cgi-bin/shop2/sh ... 0962b&pn=0

Someone has to try it first

137mm long

but I did not measure them myselff

WBX Man · Post by **WBX Man** » Thu Nov 23, 2006 1:30 pm

joop wrote: Every machine shop can do it

Sure

but how much of the small will be left

joop wrote: Someone has to try it first

Allright you go first

Rolf · Post by **Rolf** » Fri Nov 24, 2006 1:40 am

WBX Man wrote:
joop wrote:How about these:

http://www.cbperformance.com/catalog.asp?ProductID=1513
They look damm nice.. but is it posible to convert it to 24mm !?

It all depends on how much material there is around the bushing in the rod. The type 1 rod bushings in a stock rod have a outer diameter of 26 mm as far as I can remember and the's not enough to make a good bushing when the inner diameter needs to be 24 mm. My guess is the 22 mm bushings needs to be removed, the bore for the bushing needs to be enlarged, new bushings have to be made and fitted. After that the rods should be machined in a fixture with a single cutting edge tool to ensure PRECISE end to end length on all rods after that the inner bore of the bushings needs to be honed to the right fit. I have tried serveral time to skip the singe egde cutting process to seed things up, but the end to end length of the rods differs as much as 0,007-0,012", too much in my opinion !! My friend "Bang" wrote a thread earier seeking info on a big oxyboxer and I'm helping him out and we will recieve CB Performance rods within a few days and then I'll be able to determine if there is enough material in the small end of the rod to machine it for a larger 24 mm bushing. Bang's engine will not need this since we are ordering 101,6 mm JE pistons with 22 mm pins.

I'll return with more info when I get the rods and done a few measurement

/R

WBX Man · Post by **WBX Man** » Fri Nov 24, 2006 3:22 am

Rolf wrote: I'll return with more info when I get the rods and done a few measurement
/R

Looking forward to it

akciddento · Post by **akciddento** » Fri Nov 24, 2006 9:37 am

i talked with stateside tuning here in the uk and they say they did a set earlier in the year taking a scat 5.4 I beam and machining and rebushing... price seemed ok too... delivery time was a bit long tho... christmas gets in the way... doh!

will think about it over the weekend unless anyone has a better suggestion...

fastback · Post by **fastback** » Sat Nov 25, 2006 4:30 am

got measurement of the CB unitech rods and he measuerd them to ca 30,6mm outside the small end.

that hould do?

joop · Post by **joop** » Tue Nov 28, 2006 10:41 am

akciddento wrote:i talked with stateside tuning here in the uk and they say they did a set earlier in the year taking a scat 5.4 I beam and machining and rebushing... price seemed ok too... delivery time was a bit long tho... christmas gets in the way... doh!

will think about it over the weekend unless anyone has a better suggestion...

The I beams are bigger around the smallend and better for turbo. Show us some pics if/when you get them

got measurement of the CB unitech rods and he measuerd them to ca 30,6mm outside the small end.

stock ones are 38mm+