Messages

1

Engine management / throttle body water plates, necessary?

« on: August 20, 2008, 04:04:37 AM »

i haven't done it yet, still trying to get the engine to run first.  I think the engine would run more efficient and healthier without heating the air coming in but I would be surprised if you'd actually feel a hp increase.  I wanted to do it more because of proper engine theory as opposed to actual hp increases.

The other way would be to wrap the exhaust to heat the back end of the motor more.  In basic high school chemistry we were taught engine theory, any kind of engine will run more efficient if the temperature difference between the intake and exhaust is as great as it possibly can be.  So I know the theory, now it's just a matter of putting it all together.

2

Engine management / throttle body water plates, necessary?

« on: August 17, 2008, 07:48:22 PM »

I've got a mechanic buddy and he said a throttle body heater plate is actually fairly common, ford's, volvo's etc.  I guess those one's seem to do a better job of not having such a mess of hose though.  

The coolant in the heater plate definitely won't cool the air at all, if anything it would certainly warm it a couple degrees.

3

Engine management / throttle body water plates, necessary?

« on: August 17, 2008, 07:33:07 AM »

I didn't want to take it off just to make things cheaper, it was more for the performance side of things.  You want the coolest air possible going into the engine, I'm not sure how much the throttle body heater would actually warm the air but I know that I don't want it warmed at all.  A little something's better than nothing.

4

Engine management / throttle body water plates, necessary?

« on: August 17, 2008, 07:29:59 AM »

That definitely all makes sense, except that I think the ambient temperature would be a factor.  The air cools as it passes through the venturi and the ambient temp would dictate whether it cools below the freezing point or not.  From that point on I'd say you're right that you would need moisture in the air to cause a problem.

I was fairly familiar with all the theory about it, that's why I thought I'd check if anyone has ever frozen up in any conditions?  It seems like alot of people have cleaned up everything under the intake manifold and no one's mentioned that they've encountered  any problems, at least I haven't read about anyone freezing up.

I think I'll leave it on for now and try taking it off in the dead of winter just to experiment, I'll find out what it'll actually do, if anything.

5

Engine management / throttle body water plates, necessary?

« on: August 16, 2008, 12:24:55 PM »

That's kinda what i was thinking, I'll leave it alone for now, thanks.

6

Engine management / throttle body water plates, necessary?

« on: August 16, 2008, 04:56:16 AM »

Ya i'm sure it would be fine normally, I'm just wondering about the -40 degree celcius days.  I've been told that ice can form on the throttle body but i wanted to hear it from someone to make sure

7

Engine management / throttle body water plates, necessary?

« on: August 14, 2008, 02:45:24 PM »

I see that alot of people have cleaned up the big mess of vacuum and water lines under the intake manifold.  I would like to get rid of the water heating on the throttle body but my issue is that I live in Canada and I do drive the car in the winter.  

Has anyone removed those plates and driven on a very cold winter day, does the intake actually freeze up without it?

thanks,
Brent

8

M42 Reference / another m44 question

« on: July 07, 2008, 08:40:51 PM »

I have an e30 '84 318i and I was going to put in the M42 engine until I saw all the threads on here about the M44 engine.  I'm  now going to go with the M44 and would like to double check everything I am going to need to do the swap.  Based on the other threads, let me see if I got this right.  

I'll need: any M44 engine (96-99, they're all the same, 318i or Z3)
             M42 wiring harness
             M42 ECU

Is that the way to go?  I was reading about how the M44 computer has the EWS immobilizer stuff in it so I should stay with the M42 computer and get it reprogrammed for the 1.9L displacement.  Is it as simple as taking it to a dealership and they know what to do?

Also, what other little things will I need, like are the engine mount brackets the same?  Different pulleys for the front end?

If anyone can give me a comprehensive idea of what all I need to make this happen I would greatly appreciate it

Brent