whats better and why?

looking for a diy build either case with somewhere in the region of 300bhp mark?

i'm thinking 2.0/2.1 [i'm assuming the 2.1 is better?] using c20let pistons? on standard rods? what sort of CR would that run with a cvh hemi head/2.0 zetec head?

link/info/input much appriciated!

 

ZVH will work out cheaper, but more power potential from ZT...

c20let pistons won't run 300hp, you'd be lucky to get past 260hp tbh. Will have to be forged with steel rods at that figure...

 

if you are starting from Scratch then zetec turbo all the way ,but if you have already got a modified cvh head etc then zvh would be the cheapest option.. but out of the two zetec turbo is the one to go for. properly spec zetec or zvh normally work out to the same money, and the standard rods will handle 300bhp

 

i really wouldn't risk std rods past 270hp...your choice but they won't last long

 

cool, i don't know much about it all tbh, currently i have nothing so will be starting from scratch.

what sort of power can a standard 2.0 bottom end handle/how much boost? i suppose about 6psi on 170ishbhp? from there what needs to be uprated? Lower compression pistons? are these available off the shelf ready to go? & steel rods for over 270ish?

does a ZVH produce a significant amount more torque than the 16v turbo?

 

2.0 bottom end good for shitloads of power, considerably over 300. Best bet to go low comp yeah. A cheaper option is calibra turbo pistons, or a few types of forged pistons: accralites, arias etc

I'd personally go for steel rods over 270hp, its not a must but a risky thing to leave out. One thing thats definitely worth the expense, no-one wants to see a rod poking out the block

zvh won't produce significantly more torque no, but will show a proportional difference with the gap between hp and torque if you know hat i mean. With a good setup/turbo etc 170-180 easy at 7-8psi yeah, i made 235hp @ 14psi if thats any indication

 

there is a car on here with c20 let pistons in a zt with 320 on an dyno

 

 

yeah!? do those pistons simply drop in once bored to 2.1 then? are these pistons really on they're limit at this level i guess?

 

bttt

 

James, bet best would be to sit down, and search on both here and FT, as i did a lot of posts on there to start with asking various ZT questions- you should be able to find pretty much all of the info that you want!