my winter project has been progressing - but it's not, really, something for the ultimate street car - though, this picture is because I bought new-to-me tires indirectly for it in the same town where I autox. These tires would have been appropriate when I was there...
I've always been amazed how big tires can make a POS truck look good...
Anyway, the reason for the post
well, looks like we have the rules for 2023 Ultimate Street car (aka Optima Challenge)
https://ultimatestreetcar.org/wp-con...gYNy5V6ZNVP6bg
my to-do list isn't terrible but part of me wonders if I should just run as is because it will take 3 months to do them.... the list
1) change intake for port EFI
2) put different roller lifters in*
3) install Terminator X
4) Build better headers
I should pull the motor and reseal the pan along with check clearances.
*discussion of #2. I talked to several engine builders, cam manufacturers and lifter manufacturers (including Iskederian - the maker of the lifters)... and the deal is that short of pulling the motor completely apart - there was manufacturing tolerance on the lifter bore height which can sometimes run afoul of the lifter manufacturers. From memory - so some correction may be needed - there are 2 "factory dimensions" for the lifter bore height. They are 30 thou difference. Thus on huge cams, you run the risk of the lifter oil passage coming out of the lifter bore. That could, at idle, lower your oil pressure. I'm not convinced that the volume that bleed could create would be enough to be a problem, but if you stack that issue with bleed-off that Isky Red racing lifters put in place and suddenly you do have an issue. I also think the oil pickup - let's just say I have questions.... On my FJ40, I had a similar oil pressure problem. Same basic deal, factory set 'height' ... wasn't enough. Moved it to 1/2" off the floor and never had oil pressure problems since.
and to be clear... 20 psi at idle hot.... it's enough but I think I want more and I want to run a thinner oil (30w now)