3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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is a good discussion about these engine on migweb at the moment, i've always thought about using the ecotec lump as they are newer, and a few points have popped up on mig that i found interesting.
just wondered if anyone has much experience of the 2.0ltr ecotec's and surely they can be tuned well
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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statements from mig:
"The ecotec may be down on power slightly compared to the XE, but it's got more low down grunt so in the real world it's just as quick (bhp for show, torque for go )."
"The ecotec develops 139lb ft torque @3,200 rpm compared with 144lb ft torque at 4,800rpm for the XE, so it should pull harder at lower revs."
"right, so the erly xes ahd forged pitons, better rods and a cosworth head which was well finished and of good quality which made them very tuneable.
But compared to the later xe's which had budget bottom ends and gm heads, where does the ecotec fall down?? Manifold design isnt an issue as any serious tuning replaces both anyway. Is the head design really that bed?? Can it be sorted with headwork, or is it fundamentally cra[p in some way?? Obviously vaux went for the emmisions hence egr etc, but again, these go with the manifolds for tuning. Whats the ecotec bottom end like??? The block must be ok, as chip is using a brand new one fpr his 500 brake rwd nova project. What about rods and pistons for mild states of tune?? Beyond that, lubrication issues etc.
Whay are they so bad, I agree as std engines they are terrible for power, but why are they so much worse to tune than the xe??"
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Andy GSi
Member
Registered: 24th Mar 02
Location: Shropshire, Drives 2.0l 16v Corsa
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i was going to choose between theses two engines, but loads of ppl said the above stuff, so decided to take a gamble, and follow the sheep 
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