Author Topic: solid lifters (Read 9555 times)

kowalski · « **on:** April 06, 2006, 07:46:55 PM »

where would i get solid lifters from for the m42?

1991318is · « **Reply #1 on:** April 06, 2006, 10:26:11 PM »

Quote from: kowalski

where would i get solid lifters from for the m42?

no idea but those can fail easily and take a tole on the motor internals from experience.

kowalski · « **Reply #2 on:** April 06, 2006, 11:00:22 PM »

Quote from: 1991318is

no idea but those can fail easily and take a tole on the motor internals from experience.

oh? that doesn't sound like much fun... i'v thrown a rod before and that kinda sucked... id hate to have that kind of issue with an 8,000 engine... what happend to you?

bmwman91 · « **Reply #3 on:** April 07, 2006, 12:20:01 AM »

Euro S50. The parts are a direct swap. Now as far as plugging the oil feeds, beats me. I guess you will need to do some custom work there.

Pros:
Higher revving valvetrain (well, it is allowed to revv higher if the rest of the motor can)

Cons:
Can be noisy
Require shimming every 15k miles or so for peak performance

I guess once the crank damper shattering at 7200RPM thing has been cleared up we will know if converting is even worth the effort. And if it can survuve, I guess someone has to be a guinea pig & see how high the internals can go before shattering.

kowalski · « **Reply #4 on:** April 07, 2006, 12:27:03 AM »

so how would the solid lifters get oil if you plug the feeds? wouldn't you need an oil distribution point somwhere in there to provide lubrication? or how do they work? i'll be getting a custom dampener made so that wont be a problem. i just want some more information on the lifters, i dont want to drop somthing that i know nothing about in, and then bump the redline to 8,000+ and have a lifter explode.

asubimmer · « **Reply #5 on:** April 07, 2006, 12:30:50 AM »

dang I would love to hear a m42 at 8k. 7k sounds pretty mean w/ a cone filter

kowalski · « **Reply #6 on:** April 07, 2006, 01:02:09 AM »

Quote from: asubimmer

dang I would love to hear a m42 at 8k. 7k sounds pretty mean w/ a cone filter

i know how ya feel:) which is part of the reason i want it to go over 8! but i don't want to risk somthing like that happening...

2002maniac · « **Reply #7 on:** April 07, 2006, 02:49:18 AM »

What would you do for a camshaft? Solid lifter motors have much different cam profiles than engines with hydraulic lifters.

bmwman91 · « **Reply #8 on:** April 07, 2006, 02:59:47 AM »

Quote from: kowalski

so how would the solid lifters get oil if you plug the feeds? wouldn't you need an oil distribution point somwhere in there to provide lubrication? or how do they work? i'll be getting a custom dampener made so that wont be a problem. i just want some more information on the lifters, i dont want to drop somthing that i know nothing about in, and then bump the redline to 8,000+ and have a lifter explode.

You would leave the oil outlets that get the cams/lifter tops. You would have to plug the passages that feed the hydraulic lifters to keep them pumped.

kowalski · « **Reply #9 on:** April 07, 2006, 02:14:26 PM »

Quote from: 2002maniac

What would you do for a camshaft? Solid lifter motors have much different cam profiles than engines with hydraulic lifters.

i have a friend who grinds cams for a living, thats where i got the set im running right now. i also have 2 extra sets of cams in my room ready for regrinding, so it shouldn't be a problem.

kowalski · « **Reply #10 on:** April 07, 2006, 02:15:18 PM »

Quote from: bmwman91

You would leave the oil outlets that get the cams/lifter tops. You would have to plug the passages that feed the hydraulic lifters to keep them pumped.

ohh ok, that makes sense then. i thought you meant to clog all of the passages and that kinda made me worried:D

Febi Guibo · « **Reply #11 on:** April 07, 2006, 04:17:17 PM »

try beehive valve springs before fitting the solid lifters...

and let me know if they work!!

tim_s · « **Reply #12 on:** April 08, 2006, 07:58:22 AM »

Quote from: bmwman91

Euro S50. The parts are a direct swap.

this is what i've been thinking of trying. Which euro S50 ones are a direct fit bmwman?

bmwman91 · « **Reply #13 on:** April 08, 2006, 12:40:25 PM »

Quote from: tim_s

this is what i've been thinking of trying. Which euro S50 ones are a direct fit bmwman?

Well, from what I remember, it was from the 1995 S50. I am not sure what years they produced it from over there though (you lucky guys, got the REAL S50, the US just got a souped-up M50).

rwinter · « **Reply #14 on:** April 09, 2006, 01:55:22 AM »

Dave Rebello is building me a 8200 RPM engine with solid lifters. I was worried about the crank damper exploding so I designed my own crank pulley. It weighs about 2.4lbs- pretty light although its solid steel. I designed it to underdrive by approx. 20% which will free up some power and also keep the waterpump impeller from cavitating at high rpm. It should be on the dyno above 8000 in a week or so. What do you guys think?