rst-g

can you reuse arp rod bolts??????

rst-g

what sort of power is it safe to use std zetec rods (rev range,bhp) na engine

Roosie

iTrader: (8)

the rod bolts are a weak point in the zetec engines for the sake of Ł65 odd quid its worth changing

Red16

yes you can re-use ARP rod bolts, before fitting them you measure the length and record it somewhere, then everytime you wish to re-use the bolts you simply measure them again and provided the anmount of stretch is still withing spec you can safely re-use them.

rst-g

what rev range can std rods be used safely? 7000-8000?

pa_sjo

That depends on your criteria. For 100,000 miles, then Ford quote 6400rpm with short burts of 6800rpm.

If you mean for doing a few thousand miles ragging it around the street or drag strip, then i'm sure regular use of 7000rpm will most likely be fine. If it's a n/a engine, then you can improve the tensile strength of the rod by getting it polished and shot-peened. Doesn't help much for forced induction though.

Red16

why bother using standard rods in a tuned engine anyway, steel ones can be bought for buttons from the states nowadays

Roosie

iTrader: (8)

what rods do the st170 engines use as im using a st170 but prefer uprated rods

pa_sjo

They're a weird size.

Turbo Zetec

iTrader: (1)

st170 ones are steel apparently anyway, but the ones from the states are the right size for the st170 pistons