Author Topic: S50b32 psitons with M44 crank (Read 22959 times)

IlovM42 · « **Reply #15 on:** January 16, 2013, 04:16:10 AM »

well euro S50b30 pistons bought, so project will be to build a M42 with 140mm rods ans 86mm S50 pistons

bme30 · « **Reply #16 on:** January 16, 2013, 05:09:07 AM »

Whats the difference between s50b30 euro and us pistons?

accota · « **Reply #17 on:** January 16, 2013, 07:16:09 AM »

Quote from: bme30;119286

Whats the difference between s50b30 euro and us pistons?

They're just different, ch, wrist pin, dome, ..., same diameter. Im not home so cant acces the info.

Enjoy the mahle online catalog:
http://catalog.mahle-aftermarket.com/product_catalog/modules/motorComponent/specs/index.xhtml?subId=4

IlovM42 · « **Reply #18 on:** January 17, 2013, 03:23:43 AM »

you can find th eanswer here on another post
http://www.m42club.com/forums/showthread.php?t=17052

IlovM42 · « **Reply #19 on:** January 17, 2013, 03:24:13 AM »

you can find the infos here
http://www.m42club.com/forums/showthread.php?t=17052

IlovM42 · « **Reply #20 on:** January 17, 2013, 03:25:25 AM »

you can find the infos here
http://www.m42club.com/forums/showthread.php?t=17052

oups sorry for triple post, network problem

thebrelon · « **Reply #21 on:** January 18, 2013, 08:06:32 AM »

Quote from: IlovM42;119285

well euro S50b30 pistons bought, so project will be to build a M42 with 140mm rods ans 86mm S50 pistons

how are you going to fit 21mm diam wrist pin into 22mm rod small end?

bme30 · « **Reply #22 on:** January 18, 2013, 08:21:41 AM »

I think the con rods he's using will have the right wrist pin and crank diameters

bme30 · « **Reply #23 on:** January 18, 2013, 08:32:54 AM »

I think the con rods he's using will have the right wrist pin and crank diameters

E36-italia · « **Reply #24 on:** January 19, 2013, 08:22:15 AM »

Quote from: accota;119115

Your next limitation must be the hydraulic lifters.

Not per se, you can rev the engine to 10K with hydraulic lifters... but not with the stock ones ;-)
The problem with our lifters is that the oil can't go out fast enough, buy them/modify them with a larger exit hole and you are in honda rev zone

I'd love to have a high revving short stroke 2lt M42.. it would beat the honda b16/B18 engines for sure.

ispierrot · « **Reply #25 on:** January 20, 2013, 04:06:41 AM »

The solution for cam lifters

http://www.youtube.com/watch?v=ynVBlDMow3k

ispierrot · « **Reply #26 on:** January 20, 2013, 04:07:25 AM »

The solution for cam lifters

http://www.youtube.com/watch?v=ynVBlDMow3k

accota · « **Reply #27 on:** January 20, 2013, 09:50:21 AM »

Quote from: E36-italia;119385

Not per se, you can rev the engine to 10K with hydraulic lifters... but not with the stock ones ;-)
The problem with our lifters is that the oil can't go out fast enough, buy them/modify them with a larger exit hole and you are in honda rev zone

I'd love to have a high revving short stroke 2lt M42.. it would beat the honda b16/B18 engines for sure.

Hydraulic lifters to 10k? I wouldn't go over 7500 with the latem42/vw ones, which is already high.

Idk about drilling the lifters. if u starve the oil feed its a bigger mess.

bme30 · « **Reply #28 on:** January 20, 2013, 06:47:03 PM »

Quote from: accota;119433

Hydraulic lifters to 10k? I wouldn't go over 7500 with the latem42/vw ones, which is already high.

Idk about drilling the lifters. if u starve the oil feed its a bigger mess.

I think the metric mechanic hydraulic lifter upgrade will allow for higher rpm. Not sure of their limit but for sure not 10k rpm.

IlovM42 · « **Reply #29 on:** January 21, 2013, 07:42:06 AM »

Quote from: thebrelon;119353

how are you going to fit 21mm diam wrist pin into 22mm rod small end?

you can change the bearing on the rod to suit the 21mm wrist pin