What do you guys think about this.

[devonjordan]

Why not S50 cams? I have some...

if there is a reason, I'd love to know it.

[318isbmw]

Why not S50 cams? I have some...

if there is a reason, I'd love to know it.

My guess is because a bigger motor being the s52 might have a bit more radical cam. I'm honestly curious about the s50 and s52 durations and what exactly they are.

[matt]

Ive seen you say this before but it still confuses me. I mean when you use the cam lock tools, flywheel TDC pin and tensioner tool, how much more dead nuts can you get? Those tools used together allow zero movement of the cams with relation to the crank along with the proper chain arrangement. What am I missing here?

There is always some slop somewhere... it's easy to get it close enough to run well, but 100% perfect takes some practice. One thing is to put it together and turn it 720 degrees (in the correct direction) and make sure the cam blocks still slip right back onto the cams. If the cams move WRT each other or the crank, you had some slack somewhere you shouldn't have in the chains.

Vanos engagement/travel is a whole other issue. More is better.

[rThor432]

I'm honestly curious about the s50 and s52 durations and what exactly they are.

I'd like to know if there is a definite difference as well..

[threlevenguy]

Build it and put it on a dyno... if I remember right, I think it was 02stu had the opposite. Never saw his HP though.

i've got 02stu's car now. it has an m52 bottom and m50 top end.

[e30this]

i've got 02stu's car now. it has an m52 bottom and m50 top end.

What do you think of it?

[Nick325is]

i've got 02stu's car now. it has an m52 bottom and m50 top end.

How is it running now? I haven't ridden in that car for awhile.

[e30this]

Well fellas, I went from a TMS chip to VEM's 3.3
I should have cams and everything installed in 2 weeks. :)

[matt]

How are you going to tune your VEMS without a dyno?

[e30this]

My buddy is a pro at vems, He knows all the ins and outs and whats best to do with it. He knows a lot of people who are very knowledgeable with vems.
I know a guy "Multiplex" who is only 2 hours away and this is what he runs on his car.
So Im sure he would help me tune it if needed. If I get it close enough to where it is driveable and I have no issues, then I will search for a dyno and go from there.
The VEM's wont be installed till spring time. Im going to look into a ITB setup as well.
We will see. Im in no hurry. The price was right with the VEM's so I couldnt pass it up.

[threlevenguy]

What do you think of it?

i really like it but i want more power. sure you can always boost, but i want to keep it NA. I'm in the same boat as you. I reeeeally want ITB's but thats going to be costly and difficult