DIV 1 rally/track 4AGE(objective +- 130 whp)

[Bean]

ditn Wrote:The problem im facing right now is the following
if i have the the 40/18 combination then i cant use the parts i want because those are with 20mm pins?
2)the shaving of the head im not to keen on,but i have no choice i guess?

as said orion makes rods to get around this problem - that is if you want to invest in that direction... I can't find the exact numbers right now but I have found major weight advantage (1kg+ on the rotating assembly without flywheel compared to a 20V blacktop) with their rods and custom pistons which helps even more with quick reving but as mentioned before, probably overkill for your goals.

Headgaskets are available as low as 0.4mm so this might be an option to avoid shaving the head more than necessary...

for what it's worth I would take the engine apart and measure all the tolerances and rebuild properly to avoid any serious damage if you intend to tune it. this doesn't mean fancy products but rather reviving it with today's means incl. fresh balancing of crank etc to much higher grade than production level (I have friend who works in aviation who did a crank of mine from a previous racecar to the couple of micrograms @10k rpm instead of the couple of grams it was before he worked it).