Jonnys3

I'm looking into the possibility of having the 2.5L engine in my Hawkeye strengthened with forged pistons, uprated gasket and studs etc. for future power gains.

Is there anything different in terms of actually running the car on a day-to-day basis I would need to look out for after the rebuild ?

ScottyPPP

It'll need running in. Other than that not really. I'd do the oil every 3k to 4k miles.

Gambit

iTrader: (6)

prepare to have a car that sounds like a diesel on cold start ups lol and people asking if its broke cause of it

Jonnys3

Heard a bit about noise on cold starts. Guessing that's gonna be piston slap ?

G10

Why change the oil so frequently? Is that because of the increased power poeple generally run on these engines shearing the oil, or the temperatures they run at, again with the increase in power?
Thanks

ScottyPPP

It's an expensive engine, so I'd prefer to look after it.

ditchmyster

iTrader: (7)

It's to do with the amount of fuel that will be present in the oil due to running after market forged pistons with their larger than OE piston to bore clearances.

Does also depend on type of use though, lots of short journeys = more frequent oil changes, but if you're doing regular long journeys on the motorway then you'll be burning off that excess fuel in the oil so no need to change it quite so frequently.

Tidgy

depends on build spec mate, mine doesnt have much noise at all

Jonnys3

It'd be nice to have the option to reach the 330/50 mark without having to worry about ringland failure or gaskets lifting.

At the moment I'm gauging opinions.

Part of me is thinking just put the money aside and be ready should it ever decide to fail in the future as I know there are a few folks on here who've been fortunate enough to get away with modifying their hawkeyes.

Tidgy

rebuild with rods, pistons, head studs and few other bits and bobs and good for 450

wms-racing

If you build it with the right pistons and bore clearances you will not have to have piston slap on cold start. Drop me an email if you want information/quote. I'm building 2.5's every week.
Andy
wmsport@yahoo.co.uk

edsel

iTrader: (2)

As above.
I'm using mahle forged pistons, no unusual noises hot or cold.