Solid lifters

[e9nine]

look at those prices :shock:

Driving a hooked up m42 (suspension wise) with some good rubber and a healthy motor on the lmit is where they shine. I love my current susp, I just need better tires. The Kumho ASX's are great for their value but the Yokos messed me up and set a standard I aim to maintain or exceed

Hopefully next summer I can get to track the m42 at a DE or two and say, I too have done it!!

Try stay with a healthy motor and just drive the car as close to your limit as you can. The m42 is a perfect DRIVING learning tool :idea: I always have another case of I AM ADDICTED TO MY CAR after I get back from a mtn run or fun run in the industrial complexes

..as to whether I will listen to my own advice... :roll:

[e9nine]

Back to the RPM limitations. The harmonic balancer, what is required to change that to a 'better' quality version? ... what exactly is it and what happens when it breaks?

It is basically used to keep the power applied to the crankshaft somewhat even since the front of the crankshaft gets hit with a jolt of power. It serves to spread the twisting force that hits the cranks.

I am not aware of any upgrades thus far. I dunno if we would gain anything from spinning the motor a little faster unless other internal stuff and cams are done. Then you will have to do fuel adjustments also along with a stand alone or custom chip.

You can check out the GT Technic website and see if they changed theirs....I don't have the link handy @ the moment.

You start to change a major component like that and $$$ just goes up.

[e30Matt]

So it's essentially a flywheel on the other end of the crank? That's what the pictures I've seen look like.

[Beej '86 325es]

Sorry to jump in and break the flow of the thread, but what is the difference between a hydraulic and solid lifter? On the hydraulic lifters on my S50 head, I can see an oil path going up inside the lifter, but doesn't look like it exits the lifter.

[Squawkident]

Sorry to jump in and break the flow of the thread, but what is the difference between a hydraulic and solid lifter? On the hydraulic lifters on my S50 head, I can see an oil path going up inside the lifter, but doesn't look like it exits the lifter.

oil basically leaks out of the hydro lifter slowly as the motor runs and is replaced by more oil from the supply channel. That's why when the lifter wears it leaks too much oil, it allows too much clearance and it ticks.

Schrick makes M42 cams and shim under bucket solid lifter conversions. Add a billet aluminum front damper, carbs or throttle bodies and you'd probably have an 8000 rpms close-to-200HP-mini-S42 screamer. I'd love to try that, if/when I get a 318iS. I'd probably run 215/45R15 Toyo T1S's for some shorter gearing and have fun with it.

[BimmerToad]

I talked to GT-Technic a while ago when I had crazy ideas of a 8500rpm street M42. They take off the harmonic balancer on the engine. However, the problem with taking of the balancer is that you need to run a standalone engine management system, since the balancer doubles as a crankshaft position sensor. Now if you're running standalone, the '93-'95 M42 valvetrain is good for about 8000rpms with only upgraded springs, since the valves have smaller stems (6mm over early M42 7mm).