Group Buy : Mahle Motorsport - Pistons

[Wizard-of-OD]

8.54 : 1 CR is perfect

I really like to have the 142 alloy so count my in for a 82mm 86.4mm stoke set please!

Thank You!

[Wizard-of-OD]

List updated
3 more people to go!

[MuK1989]

I dont know how much the shipping is, but maby you can send the set of me and v6quattro in one pakkage?

[Wizard-of-OD]

I dont know how much the shipping is, but maby you can send the set of me and v6quattro in one pakkage?

not a problem.
Will discuss shipping when they are completed.

[dubmanted]

If a few parts sell ill be in on this group buy at 82.5mm bore for 86.4mm stroke & 20mm wrist pin. Working it out this should give me 8.65:1 compression is this right?

Cheers

[Wizard-of-OD]

If a few parts sell ill be in on this group buy at 82.5mm bore for 86.4mm stroke & 20mm wrist pin. Working it out this should give me 8.65:1 compression is this right?

Cheers

That is correct.
List updated.

Vc = 8cc + 44cc + 8.49cc = 60.49

86.4mm STROKE:
79.5mm bore x 86.4mm stroke = 2144.4cc : Vh = 2144.4 / 5 = 428.88 cc / cylinder
81.0mm bore x 86.4mm stroke = 2226.1cc : Vh = 445.20 cc / cylinder
81.5mm bore x 86.4mm stroke = 2253.7cc : Vh = 450.74 cc / cylinder

82.0mm bore x 86.4mm stroke = 2281.4cc : Vh = 456.28 cc / cylinder
82.5mm bore x 86.4mm stroke = 2309.3cc : Vh = 461.86 cc / cylinder
83.0mm bore x 86.4mm stroke = 2337.4cc : Vh = 467.44 cc / cylinder

Mahle has just informed us that the Mahle142 forging is no longer available in anything under 82mm due to the features needed for the rings.
That means 82mm bore is now the minimum bore allowed:

Compression Ratio is as follows:
E (compression ratio) = (Vh + Vc) / Vc

82.5mm Bore:
= 461.86 + 60.49 / 60.49
= 8.64 : 1 CR

[MuK1989]

Any news?

[Wizard-of-OD]

Any news?

Need to fill up these lists!

[orignalS60]

I'd be interested in a set of 83mm AAN 86.4mm stroke pistons if these are still available.

[Wizard-of-OD]

I'd be interested in a set of 83mm AAN 86.4mm stroke pistons if these are still available.

If I add you to the list below , then I will move forward with the production run for the 86.4mm pistons.

86.4mm Stroke List:

1. Rallyequattro – 1 set x 82mm bore
2. V6quattro - 1 set x 82mm bore
3. Wizard-of-OD – 1 set x 83mm bore
4. Lars Bjornstad – 1 set x 83mm bore
5. MuK1989 - 1 set x 82mm bore

95.5mm Stroke List:

1. Wizard-of-OD – 1 set x 82.5mm bore
2. Jared Hersh – 1 set x 82.0mm bore

[orignalS60]

Yea no problem. Would you choose these over Wiseco and JE? I was debating using Wiseco.
Also just let me know how and when to pay.

[Wizard-of-OD]

Yea no problem. Would you choose these over Wiseco and JE? I was debating using Wiseco.
Also just let me know how and when to pay.

To put it nicely as i did in a PM.

Mahle = Rollys Royce
JE = Volkswagen
Wiseco = Seat

Tomorrow I am going to place the PO to get these going. The #7 and #8 set I will make in 82.5mm and 83mm bore respectively. Before the PO is sent , I will be asking for payment from everyone.

[Wizard-of-OD]

86.4mm Stroke List:

1. Rallyequattro – 1 set x 82mm bore
2. V6quattro - 1 set x 82mm bore
3. MuK1989 - 1 set x 82mm bore
4. Wizard-of-OD – 1 set x 82.5mm bore
5. Lars Bjornstad – 1 set x 83mm bore - PAID
6. Wizard-of-OD – 2 set x 83mm bore
7. orignalS60 - 1 set x 83mm bore

So that is 15 pieces x 82mm , 5 pieces x 82.5mm and 20 pieces x 83mm bore.

[MuK1989]

I did not get a message about the payment, is that correct?

[Wizard-of-OD]

I did not get a message about the payment, is that correct?

Not yet
you will today once we confirm with Mahle.