will it be safe to run 2 bar on a block that is bored to 81mm ???

 

no its not overboared as they are 80mm standard.. my old s2 was bored to 81mm and ran really well at 160bhp but as for 2bar that is rather high.. mine was running at 12psi.. so if you are wanting to run high boost and want it to be religable and safer is with a zvh convesion.. also if you do stick with the cvh you will need excesive mods to the engine.. i.e.FORGED low comp pistons.. lightend and balaced flywheel and crank reground, you will probly need some fuel mods, chipped, aftermarket cam and pully, hybrid turbo.. BIG intercooler to keep the acts the right level. stage 2 head, this may give you around 200bhp at about 14 psi.. as for not doing anything to the engine and try running 2bar within no time it will go BANG!!!

 

thank you for your replay but i have already all the parts exept cam
i have low comp pistons + steel rods

[/img]

 

well the low com pistons and steel rods are stong but if u putting 29psi through the engine.. i doubt that wil last long at all.. imo its way too high for the engine to cope with.. check www.escortrsturbo.co.uk out.. that site is made just for ERSTs..

 

What is your reason for wanting to run 2bar of boost? that is ALOT of boost and should only be used on a well spec'd motor. If I was you I would run a max of 20psi (preferablly 16psi).

 

to see 300HP

 

m8, ur gonna have to do more than just turn the boost up to get 300bhp, take a look at c&b's build to see whats needed.