alot of type 4 engine builder hate the 103/4/5mm pistons and barrells unless your willing to spend big $ on niki'sMegaManx wrote:Ok so I’ve been talking to a couple of engine builders and I’ve been told that if all my internals are ok (I haven’t split my case yet to look, it’s a 1.8L) that I should just get it machined for 105’s and get a set of 48x36 duel spring heads and a cam to my taste all at 9.5:1. approx. 2455cc 220hp+
My question is has any one done this? Is the combo itself ok or complete rubbish? Will the standard internals even cope?
I tend to agree with the train of thought that a smaller crank and bigger pistons to bring up the revs and keep the low end toque in check may be the way to go for my application.
Anyway its just a thought, im fairly certain that my case has seen a bit of work over the years and I would feel better knowing that its been completely rebuilt.
i know jake raby is no fan of the 103/4/5mm unless there nikisil.
and for the price of nikisil barrells you could get a stroker crank ,96's+ alot more
in aus there are no real type 4 specialists they all mainly do type 1 and do the occasional stock or mild type 4's every now and then .
i can't think of 1 engine builder in aus that only does type 4's..
rod penross would be the only one i can think of who does performance type 4s more than most