hey bill lets not fall out over this mate,i did hours of research on a upgraded turbo when i had my vf34/1.8t. Everything pointed to a 18g being alot better option than the vf34,it's rebuilable/upgradable for a start and in my opinion alot stronger turbo.There's guys running a real 380bhp on scoobies at 1.4bar on the spec 18g i quoted.Lets face it 340bhp is a absolute top figure for a vf34 running lots of boost,as a alternative a 18g will do 40-50bhp more thats why i recommend it .
Could you explain why i can't compare evo 2.0 vs 1.8t? other than the twin scroll which helps spool but would not affect peak power? I would have thought a scooby engine is more unlike a straight 4 evo/1.8t engine.
Your telling me that the jbs kit is not a evo 9 turbo/evo fp green?
i know the compressor wheel on a pe1820 is 70mm which is not alot bigger than a big 16g/18g 68mm but the the pe has the tiny hotside of a vf34 i would say your car was running a real 360/370bhp when you had it on.
Tim was running a decent manifold, ie not jabba. A evo will spool a gt3076r (gt30r) alot quicker than a 1.8t and i've been in a 520bhp one with a proper set-up and i wouldn't describe the spool as anywhere near vf34/pe1820f but then again i wouldn't descibe the performance as near a vf34.
Interested to know more about this owens gt/ihi hybrid ,owens themselves quote 405bhp/355lb/t at 1.7 bar and full boost around 3500rpm for the smaller turbo but i doubt this would be suitable for standard piston/rodded 1.8t's lets face it we have been going round thinking we have 350-380bhp when we have 320-340bhp and it's a big jump to 400+
