how to tell sti engines apart from others

[Guest]

Hi all, iv'e been been offered a v3 sti engine for a good price but the guy said it was out of a 1995 wrx sti. Its got the top mounted coil, red manifold, orange afm etc, but did'nt the v3 engines start in 1996???

cheers

[Guest boostcut]

yes, your correct. but what says he is correct on the age of the vehicle. the easy way to tell would be to look at the injectors. yellow=v3 grey=v2. also v2 has an ugly turbo inlet. v3 has a straight under the inlet manifold type.

these are just visual comparisons. v3 has alot of different things to a v2 and are basically a completely revised engine.

[Guest SPANKU]

make sure the side of the rocket covers is not ribbed but smooth also. i know someone who brough a car and though it was a ver3/4 sti motor but turned out to be just a wrx engine

[Guest keltik]

Lol....rocket covers.

[Guest boostcut]

must have brought them off nasa

[Guest boostcut]

and funny how there arnt even rockers in behind them. ha ha cam covers are good. because if you spell cam wrong your getting a back hand.

[Guest keltik]

 boostcut said:

and funny how there arnt even rockers in behind them. ha ha cam covers are good. because if you spell cam wrong your getting a back hand.

Maybe hes got sadams car and thats where the WMD's were hidden all along. Oops ive kinda derailed this thread.

[Guest SPANKU]

well cam covers LOL

[Guest boostcut]

you just saved yourself a good self harming session with keltik

[Guest keltik]

Hey I just came in here for a quick lol, sans bigger than me anyways. Plus i actually want to know how to tell those motors apart.

[Guest boostcut]

well just check if the rocket is under the cover or not to see if its a rs motor.

[marc]

if its a v3, where coil on top first starts the non sti and sti both have smooth cam covers. The dif between them externally would be as above the yellow injectors and orange afm howver these are easily changed. (wont go into v2 as no coil ontop but mani does bolt up I spose but then v2 sti and non sti have ribs and writing on the top portion of the cam cover). best way to tell without going too deep is one of 2 ways. If front covers are off remove a piston pin removal bung and turn engine over till you can see the side of the piston (this will tell u if short block is STI) assuming you can tell the difference between forged and cast pisons. (easy google will show u some rough images) secondaly u can remove a cam cover 8 10mm head bolts and then look at the bucket and shim ontop of the valve. If you can see a shim under the cam lobe sitting ontop of the bucket then is NOT STI but if there is no shim and it looks like the cam lobe is just pushing on the bucket then it IS STI. well the heads anyway but mentioned how to tell block too. other then that your guessing..