034 92.8 & 100mm crank

[Rocco]

83.5 pistons then

[driftin jo]

What a load of crap ! “Far superior to the stock cast units available” . well the stock cranks are not cast they are forged and very strong, Audi tested them to 1400hp before encountering problems so IMO this should be taken with a pinch of salt.

[Error404]

Sounds like 034, they seem to make all there products sound better than they are

[Jamo]

I've just checked and this product looks very much like a certain one made by a swedish company so i'm wondering if it's being imported rather than made at 034

[newt]

What a load of crap ! “Far superior to the stock cast units available” . well the stock cranks are not cast they are forged and very strong, Audi tested them to 1400hp before encountering problems so IMO this should be taken with a pinch of salt.

"cast stock based units available" There are stock 'based' cast unit available in the aftermarket, not 'stock' units.

[newt]

83.5 pistons then

Exactly, not uncommon at all.

[Billman]

I've just checked and this product looks very much like a certain one made by a swedish company so i'm wondering if it's being imported rather than made at 034

is there any link for this Jamo?

[jade]

Exactly, not uncommon at all.

Please can you tell us more about what is involved in the 2.8 conversion, just to set the record straight

[Jamo]

Exactly, not uncommon at all.

83.5mm pistons, more details please as over 83mm the piston walls are considered too small so I'd love to see details of the 2.8 conversion with 83.5 pistons

[newt]

Wall thickness depends on what you're doing with the motor, there's guys that have done NA 83.5 stuff for years. On a big power turbo motor, probably not the best idea.

[AndyP]

83.5 pistons then

That's still only 2738cc, hardly 2.8. Still looks like a nice bit of kit for $1700, something to consider for the future

[A80Avant]

i was going to say...

are these numbers considered for cars that are meant not to be rebuilt every 40K kms? and rebuild is one thing, with bores being that thin, id say throw away and get another block...

realistically 2.5 with the crank 144 rods and pistons custom would be nice, on the short block, and maybe 2.6 to 2.7 at most for a reliable turbo engine on the tall.

but hey, nice thoughts!

[UrS4boy]

What a load of crap ! “Far superior to the stock cast units available” . well the stock cranks are not cast they are forged and very strong, Audi tested them to 1400hp before encountering problems so IMO this should be taken with a pinch of salt.

Personally, I would be more worried about a billet crank that a forged crank since forging is used to orient the "grains" and density of the metal to good advantage. With a billet crank you wouldn't get that. Everything portion would be the same regardless of the stresses that they would be subjected to = more potential weak points

[newt]

i was going to say...

are these numbers considered for cars that are meant not to be rebuilt every 40K kms? and rebuild is one thing, with bores being that thin, id say throw away and get another block...

realistically 2.5 with the crank 144 rods and pistons custom would be nice, on the short block, and maybe 2.6 to 2.7 at most for a reliable turbo engine on the tall.

but hey, nice thoughts!

Exactly, for turbo motors, and motors with decent life spans you want to keep the extra wall material in there. For the guy that needs every last bit of air to pump through that motor at all costs.... things start getting much more ragged edge.

[G60Rallye]

What a load of crap ! “Far superior to the stock cast units available” . well the stock cranks are not cast they are forged and very strong, Audi tested them to 1400hp before encountering problems so IMO this should be taken with a pinch of salt.

Not that I am dbouting your information but how the hell did Audi test upto 1400bhp?

I would love to see an article on that!