Austarion

stariontron wrote:ok guys i'm stoked at the response from my last few questions, sounds like there's some pretty knowledgeable folk hanging around. anyway, onto round two

here's what i've acquired so far:

evo 2 head,
evo 3 RS cams
evo 4 ECU and loom
evo 1 pistons, rings and rods
my starion bottom end

stop me if i'm wrong, but i'm hoping that I can bolt the evo rods and pistons to my starion crank (assuming its a longnose), and run the evo 2 head.

1.will the rods fit? Nope i am pretty sure they dont. Difference in width of the bearings if i remember correctly. Either way the evo rods are the biggest known weak spot of the evo engines, they are thinner than vr4 and starion ones. If you want to use the evo pistons, you could use starion or vr4 rods and get the pin ends resized to 22mm (evo gudgeon pin size) Ive got a spare set of starion rods you can have for a box of heineken if you need them.

2.will my compression ratio be fine?
Yes evo and vr CRs are both around 8.3 to 9:1 so evo pistons should be fine. You can get a brand new set of cast NPR pistons from the USA that will fit starion or vr4 rods (21mm pin) for around $100USD which is a small outlay for an engine build really, rather than relying on 2nd hand pistons

I'm still looking for an inlet manifold. evo 1-3 ones are relatively rare but theres a HEAP of evo 4+ and non turbo galant manifold of all years going for next to nothing.

3.can I use an evo 4+ manifold on a 2 head?
Theres been alot of evo 1-3 manifolds on trademe lately for under $100 each, evo 4 onwards ones will take alot more modding as the mounting flange is different. Evo1-3 ones just need the TB moving to the other end which is pretty easy and cheap

4.can I use an N/A manifold on an evo 2 head?
Nope evo heads are small port and as far as i know all NA 4g63 heads were big port(correct me if im wrong

finally, assuming that I can use the starion crank and flywheel..

5. will a clutch designed for an evo or vr4 fit a starion flywheel?
Dont think so, starion clutches are readily available anyway and range from $150 upwards so arent too pricey anyway

Hope this helps

stariontron wrote:thanks for the responses guys. i have both my old set of starion rods, and the evo rods. i'd rather go with anything that bolts in where possible, rather than getting things modified.
Well if your going for ease of bolting in then the starion rods will be fine, unless your planning more than 400 odd horsepower

so consensus time... ive had a yes and a no on this one... will the evo rods bolt to the starion crank? and if not, will the starion rods work with evo pistons?
evo rods are narrower so are a no go with the starion crank. Evo pistons can be used if the rod pin ends are machined out to 22mm

widebodywoody, when you refer to redirecting the manifold, is that making it face the oither way? does that mean that an evo 4 manifold will already be facing the correct way, but that it will need some other modification?

im assuming that all evos have the same shape inlet ports then?

Evo1-3 ports are the same, but are different from evo 4 upwards. Am guessing Woody is saying that with the evo1-3 manifold, ul only need to redirect the throttle body to the other end, whereas you may be able to use the later model manifold as its already pointing the right
way, but the ports wont match up