Mongo

As the queston really, was it just an STi thing. Just finnished stripping mine down and found a nice supprise in the bottom of the blocks

stoneface

iTrader: (6)

As far as i know it was both wrx ra and sti ra cdb that had oil squirters.

Mongo

cheers mate.. It was a nice supprise to find them after pulling the pistons out

stoneface

iTrader: (6)

Doing a rebuild on mine to at mo, what pistons you going for mate?

Mongo

Argh.. Dont go there lol.

Currently in termoil on what to choose. Been told by a very reliable source to steer clear of JE and Wiseco (one and the sameish) as there have been problems in the states with the JE's.

I'd like to use Omega's but RCMS want to take my **** virginity over the price. So I'm either looking at Mahle or Wossners

Mahle are a make I've heard a lot about, they produced all of the pistons for the Vauxhall LET's (which are good for over 500bhp). The Wossners are german made and have tefflon skirts and one or two other bits and peices.

What are you thinking of using?

stoneface

iTrader: (6)

Its all good fun!
I was goin to go for je's what have you heard problem wise about the je's?

Mongo

Problems in the states with them sticking in bores That problem may have been rectified. I've not heard of any problems over here though and there a lot of big power cars running them.

Where abouts in Cornwall are you from?

stoneface

iTrader: (6)

Will have to look into that then. I'm near bude north cornwall.

Mongo

Ah cool, I've got a good friend of mine who lives in bude.. The roads to okehampton are great fun aren't they? Which village?

dazdavies

iTrader: (22)

Absolutely nothing wrong with wiseco's I have them in mine 93mm 8.35:1 CR and have done circa 30,000 miles @ 400bhp without any problems whatsoever.

Daz

p1prodrive

iTrader: (3)

lots of people using wiesco with 600bhp plus !!

only heard good things about them, and thats what iam about to buy from Lateral

Scoobyslammed

Think my 2.35 cdb is running CP...

Mongo

I did mention this was a problem with JE's in the states.. Wiseco are a derivative of JE, however it may have been a problem with tolerances on a batch.

Slowboy Racing

Axis stage 4 runs CP's

merlin24

iTrader: (1)

If the Pistons are sticking in the Bores, that must be a problem with the Piston to Bore Clearance when the bores are given the final hone ??
Aftermarket Forged Pistons normally run approx 0.0025 - 0.0035" bore clearance which is enough to give a bit of slap from cold but the Forged pistons expand to the normal running clearance when up to temp.

Mongo

Yes mate.. Thats why I said it might be a tollerance issue. Later on in the thread

NISFAN

JE and Wiseco are two totally seperate companies, they are not derivatives of each other.

Every bore needs to be correctly honed to size for each piston, so anyone that had trouble with a forged piston siezing, simply didn't hone the bore to a large enough clearance. Not the piston suppliers fault at all.

Both JE and Wiseco are excellent makes, very strong and light weight.
There are cases of the spring clips coming loose and scoring the bore, especially on JE's. However, some people don't know how to assembly them correctly, so could well be the engine builders fault.