756 replies to this topic

[Bargi]

What exactally is this piston slap that everyone bangs on about? I mean I know what its but I've the (apparently) nasty low comp Wisco pistons for about 15k miles and have never noticed anything out of the ordinary at startup.

[vocky]

no idea either, I've had three forged engines in mine, no piston slap and zero oil consumption

[smiley]

Should sound like this at cold startup.

 

 

But apparantly not always?

[vocky]

the wiseco pistons have a Teflon skirt coating to prevent piston slap.

 

I've never heard a forged z22se sound like that, that's terrible and I would not be happy to build an engine sounding like that 

Edited by vocky, 18 August 2013 - 08:17 PM.

[fezzasus]

the wiseco pistons have a Teflon skirt coating to prevent piston slap.

 

Which is great for the first 500 miles until all the ptfe comes off and causes 3rd body abrasive wear.

[FLD]

 

the wiseco pistons have a Teflon skirt coating to prevent piston slap.

 

Which is great for the first 500 miles until all the ptfe comes off and causes 3rd body abrasive wear.

 

 

A decent coating should stay on just fine.  I've had several sets of pistons that have been coated and its still been there at the next tear down.  The only problem I've had has been from a local coater, factory coatings should be fine.

[alanoo]

The break in coating is only to avoid a catastrophe on the first piston expansions and has nothing to do with piston slap.

 

Piston slap and oil consumption are not related too. Many well built forged engines would have a bit higher than usual piston to bore clearance (gives a few more hp), and would slap badly at cold, without any negative effect after a few seconds heating up. I agree it could sound to some hears like sh*t or like an old wreck, but apart from that and the slightly higher induced wear when there's a lot of heat cycles, there's nothing wrong about it

[mark moyz]

What bhp is this engine standard and is it a 2.0. Also would this engine fit with the 4.17 zafira final drive ?

[vocky]

the engines for sale are basically bare 2.0 tall blocks, they need the supercharged parts to make them run and then would be around 230 bhp with the saab camshafts (which are shite for bhp)

 

If you added some LSJ camshafts then power would be around 280bhp for the 2.0 engine, converted to a 2.2 around 300bhp

 

And the B207 engine bolts directly to the 2.2 F23 gearbox in the vx220, whether that's a 4.17 or the standard 3.95 doesn't make any difference, the bolt pattern is the same.

Edited by vocky, 19 August 2013 - 08:36 PM.

[mark moyz]

Cheers Vocky

[CHILL Gone DUTCH]

When are we ordering these before my mrs changes her mind about raiding savings

Edited by CHILL Gone DUTCH, 20 August 2013 - 01:33 PM.

[ArticMonkey]

I think we need to look at calling a close and ordering soon. We have enough for the £960 price which is still a good saving. Should we say by Sunday everyone needs to be confirmed?

[2deano5]

We are each paying them direct then they are releasing once they have 5 orders yes?

 

[ArticMonkey]

Correct

[CHILL Gone DUTCH]

List for deffo Can we make dead line date 1st as I'm away until then

[vocky]

I'm out, need to buy some French doors instead

 

 

list of buyers at £960

1 - chill

2 - 2deano5

3 - articmonkey

4 -

5 -

 

 

 

previous list

1. CHILL
2. D3YMO
3. ArticMonkey
4. 2deano5
5. Mango Motorsport
6. Vocky
7. alanoo (ship to FR)          

 

Edited by vocky, 20 August 2013 - 06:32 PM.

[ArticMonkey]

Sunday the 1st it is.

[D3YMO]

Im out too...got other stuff to pay for before i get an engine, especially when mine is running fine as it is

[ArticMonkey]

And they're dropping like flys

[JG]

and i'm in at the 10 number