289 FIA vintage race engine with Webers

peterpjb · #1 (**permalink**) 04-11-2019, 05:38 AM

Quote:

Originally Posted by blykins

....
The rules are all over the place for these classes. The 289 that I mentioned in the paragraph above was for a customer in the UK and he was not allowed to use roller rockers, so I had some factory rockers REM polished and cryogenically treated and we paired those with a solid flat tappet.

the rules that forbid roller rockers are the same that requires Webers...

blykins · #2 (**permalink**) 04-11-2019, 06:02 AM

I never could get a straight answer out of anyone on where the line was drawn. I figure it's easy for tech to pull a valve cover to check out the rockers, so that was probably something to stick to.

peterpjb · #3 (**permalink**) 04-11-2019, 07:25 AM

Quote:

Originally Posted by blykins

I never could get a straight answer out of anyone on where the line was drawn. I figure it's easy for tech to pull a valve cover to check out the rockers, so that was probably something to stick to.

everything is clearly defined in homologation 115, some issues are easy to control, some not..