hi am i right in believing that the rods are capable of 300 bhp and does any 1 know what psi of boost is ok for them, also would shot peening make any difference. thanks juff

 

im not sure about the shot peening carry on but i have heard of standard rods doing 320+

 

i wouldnt take the chance mate

 

shot peening will simply clean the surface up and remove any stressed material on the outer of the rods. the thing is you can get steel rods for the zetec from the states for very little outlay so why chance it with standard rods?

 

Much are the ones form the States?

 

not sure off the top of my head but think pistons and rods are around Ł500 for a set. provided you don't incur import duty that is. some times worth waiting for the exchange rate to get better

 

[quote="Taylor"]Much are the ones form the States? [/quo


eagle steel rods Ł180

 

[quote="turboboss"]Cool mate,cheers for that!

 

were are the steel rods for Ł180? thats a bargain!!

 

i got my rods and pistons for Ł500 to my door

 

only thing i do to them is get them balanced,used standard balanced rods on my on engine which has been in car now for 5+years,used same spec on all the other zvh lumps ive built,never had problem.

 

Id be inclined to place more faith in standard rods than cheap sub standard Chinese ones

 

sub standard chinese made rods that many american zetec with over 400whp run ian howell recommends them for up to 400hp.

sean

 

sean, I know you've said before you use them, Eagle rods. Thats your choice, I know many American builds use them too, it is however well known that they are "not all that"! Many more Americans shy away from them due to quality issues and in many's peoples opinion they are "just cheap shit".
Its proven that standard rods are good for 300+ bhp.
Considering the above and in answer to the thread title, the answer to juffer's question IMO its a no brainer.

 

i see your point but so many big power zetec use these rods over here and the states and take it from me they are far stronger then standard rods and for the money whats the point staying with standard rods...cheap but proven not to be shite.

sean

 

standard rods = 280 reliable BHP, for more I'd go for steel ones.

 

Ok a simple question to everyone really.

Who has conclusive proof that a standard Zetec rod(used in a Zetec Turbo) has bent just because power exceded 300bhp?
I'm sure there isnt a huge pile of bent rods in existance (or non existance as the case may be) just because the power exceeded 300bhp or is there?
The compression ratio used in the build(which would have also played a part in determining where the point of failure was/is) would also be handy to know!!!
Cheers for your input

 

Ive just priced up CP pistons and Pauter rods for my 2 litre zetec turbo build ( silver top )... Ł640 quid without p&p...
I think i'll get these ordered for my build... cant go wrong for the money...
I used CP pistons and Pauter rods in my 2.35 build for my Scooby...

 

Im completely biased and of course Pauter rods are the titts cant go wrong with CP or JE pistons either IMO. Hope your build go's well!

 

^^^up....where does the standard rods are only good for 300bhp come from???

 

aint the ones fitted in the st170 engine steel already so how much power would they take do you think

 

i heard it some where on here so i dont know really mate!!! but i think you have proven your point so im staying with standard rods lol

 

are you still on the standard rod mate??

 

curently doing a build still mate.

 

Cheers... me too... I used CP pistons & Pauter rods in my last project...

http://bbs.scoobynet.com/projects-40...diy-style.html

 

Hi. No im using Pauter rods & JE pistons(to AVA's spec)

 

they are well nice mate

 

Cheers, they certainly make a very capable combination, running a lot more power than I initialy plan on running, would im sure be a walk in the park.

anodised makes a fair point about the st170 rods. If they are stronger in the first place & by using a custom piston the compression ratio can be lowered enough to significantly reduce cylinder preassure then im sure that would make a good reliable build. Anyone done it yet??

 

im about to start building a st170 turbo for my mk4

was thinking about keeping the st rods changing the pistons and using arp bolts

and using the st170 head with the vvt maybe a little port

 

Nobody knows the limit of standard rods, depends how you drive, like what andy r said where did this 300bhp limit come from?

 

it just means that its the most anyone as dared to push the rods is 300 bhp