ABY crank stroke???

[gnutz2]

Can someone tell me the stroke on an ABY crank so i can work out my CR.

Cheers

[caterpillar]

1900 and 2000 ccm 5 syl have 77,4 mm stroke, others have 86,4mm( 2,2 and 2,3liters.) then you have 2,4 diesel and 2,5 tdi- they have 95,5mm there are som minor variants. 2,5 10v petrol may have 92,8( not all) and s1 have 85,00mm .......

[4WheelDrifter]

ABY stroke is 86.4 mm. Can't you measure it?

[gnutz2]

Thanks for the info.

Why do i need to measure it when someone just told me

[4WheelDrifter]

Thanks for the info.

Why do i need to measure it when someone just told me

Seeing and measuring things for yourself is the only way you'll really know for sure.

[Acidburn]

Lol - good point there

[caterpillar]

if ABY are a 5 potters... yea 86,4 stroke
dieselcrank have the same tapps, so it will fit in the block.... for sure

[4WheelDrifter]

if ABY are a 5 potters... yea 86,4 stroke
dieselcrank have the same tapps, so it will fit in the block.... for sure

@ Caterpillar and his stroker/diesel crank obsession.

[caterpillar]

[Jamo]

@ Caterpillar and his stroker/diesel crank obsession.

When you joining the obession 4WD?

[caterpillar]

have 4wd ....2wd sucks

[4WheelDrifter]

When you joining the obession 4WD?

I'll see how I get on with 86.4 mm first. I have enough spares to get a couple more engines done after that.

[Jamo]

I'll see how I get on with 86.4 mm first. I have enough spares to get a couple more engines done after that.

There's a man confident his 1st engine build will last......................

Hold on a sec aren't you helping me out .................


There a nice thread on motorgeeks about a theorectical 86.4 in a diesel block whether it would make power or not or be a pig

[AndyP]

There's a man confident his 1st engine build will last......................

Hold on a sec aren't you helping me out .................


There a nice thread on motorgeeks about a theorectical 86.4 in a diesel block whether it would make power or not or be a pig

Link?

[Jamo]

These 2

http://www.motorgeek.com/phpBB2/viewtopic.php?t=4810

http://www.motorgeek.com/phpBB2/viewtopic.php?t=7191

This is in a block with a 220mm deck height.
Deck height = (stroke length/2) + rod length + compression height

Stock compression height for the audi 20v is:
220-(86.4/2)-144=32.8mm

By using a stroker crank like eurovan unit in the standard height block and standard length your compression height becomes:
220-(95.5/2)-144=28.25mm

The rod stroke ratio of one of these franken strokers is 144/95.5=1.51:1

The eurovan block itself has a taller deck height at 236mm. So if you kept the same rod stroke ratio and compression height as the franken stroker, you could fit this big of crank:

236=28.25+(x/2)+(1.51*x)
236=28.25+(2.01*x)
X=(236-28.25)/2.01
Stroke length = 103.85mm

With a 83.5mm bore this gives total displacement of:
((83.5/20)*(83.5/20))*3.1415926535*10.385*5=2843cc

It would be a big pig, but who knows it might make big power.