Hi,
Two months ago i bought a set of titanium con rods in order to use it in my EVO VI TM project. The clearance we measured is 0,085 mm on stock and also on an HKS forged crank. The manual says that the apper value should be up to 0,055 mm, the value we measured already in stock parts.
Do you know by expierence if clearances regarding titanium rods is allowed to reach such values (0,085 mm) or it's propably a manufacture miss ?
Thanks in advance
Stratis

 

you have to run more clearance with titanium. if you run tight clearance the titanium will "grab" on the crank.

 

Do you know by personal experience or it's just a guess ?
Thanks

 

Holy hell, where did you get Ti conrods?

 

They are Oliver's titanium con rods....

 

Crower also sells them. I had them in my b18c1 to destroke to 1.6 liter

bryan

 

Why would you decrease displacement?

And where can you get these Oliver's parts from?

 

long story. no idea on the oliver parts. www.crower.com can sell you some.

bryan

 

I colleague of mind has limited ti rod experience with turbo 962 group c engines from the mid 80's, they ran their rod to crank clearance @ .0055 - .0065. The thinking was the big end didnt expand that much compared to steel rods, so they ran their clearances a bit larger. Their engine would run 24 hour events problem free.....

94awd is correct with suggesting a larger clearance w/ti rods

So .0033" or .085 mm should be safe. Be sure that your side clearance is ~.007 - .009. They had plasma coated side surfaces, not sure how the oliver rods were delivered to you.

Hope this helps out & good luck.

 

Pauter makes a set of Titanium rods as well for the 4g63. They're $995 a peice though. Regular 4340 Forged steel rods are $754 per set.

 

I bought them from http://www.xtreme-uk.net/NewsArticle...bankdetails=12