M54b30 intake manifold swap into m52tu

My only real question regards the throttle body and the adapter plate. If only 2 bolts are used, does it stay tight on the Manifold? And the throttle body wire, how hard is it to re-arrange it?

they stay on tight, the 3rd post i did with pictures, the last picture shows the two bolts used. Throttle cable is a snack just clip it on the throttle body itself and then have someone press the gas pedal all the way and then just adjust it accordingly with the screw the throttle cable has

Originally Posted by Iceman00

You're right. I just checked, there was NO GAIN going from a 325 manifold to a 330.

http://forum.e46fanatics.com/showpos...3&postcount=61

Apparently, Will Turner runs a 325 manifold and that is good enough for me.

Did you talk to him? We email pretty much every week.

I don't know why you are so set on giving poor advice, but I know of numerous race teams and top level tuners that switch the B25 manifold out for B30s and see substantial gains.

Edit: I guess what needs to be acknowledged is the context of this conversation. I think every one of the engines I'm referencing are fairly "built" with different cams. On a stock engine, I'm inclined to agree that the B25 may be best for the B25. My frame of mind is very rarely stuck in "stock" configurations.....

Sorry for the sidetrack.

Originally Posted by pei330ci

Did you talk to him? We email pretty much every week.

I don't know why you are so set on giving poor advice, but I know of numerous race teams and top level tuners that switch the B25 manifold out for B30s and see substantial gains.

Did you read what I posted? According to the post, a person contacted Will directly. Will was quoted as saying there were no gains in horsepower to be had, but the manifold did move the torque curve around, though it was not specified how.

Originally Posted by pei330ci

Did you talk to him? We email pretty much every week.

I don't know why you are so set on giving poor advice, but I know of numerous race teams and top level tuners that switch the B25 manifold out for B30s and see substantial gains.

Edit: I guess what needs to be acknowledged is the context of this conversation. I think every one of the engines I'm referencing are fairly "built" with different cams. On a stock engine, I'm inclined to agree that the B25 may be best for the B25. My frame of mind is very rarely stuck in "stock" configurations.....

Sorry for the sidetrack.

I was about to flip out to be completely honest.

Originally Posted by Iceman00

I was about to flip out to be completely honest.

I would have sent you an "E-hug".

Originally Posted by pei330ci

I would have sent you an "E-hug".

I would have accepted

My M54b25 just walked in the door.

Looks good man! You're M52TU head has the D shape ports too though, as well as your intake manifold, along with the M54 manifold

I have a b30 manifold already, I just need to get the DISA and the TB adapter plate.

Adapter plate is next. I cannot wait!

I would say it's worth it for the DISA, alone. Having seen the same motor with and without DISA I can say the low-end torque gains are subtantial.

Why couldn't you use the M54b30 throttle body?

Activ3 Looks good man! You're M52TU head has the D shape ports too though, as well as your intake manifold, along with the M54 manifold

I have a b30 manifold already, I just need to get the DISA and the TB adapter plate.

yea bro m54=D m52=o on the manifold


hoveringuy I would say it's worth it for the DISA, alone. Having seen the same motor with and without DISA I can say the low-end torque gains are subtantial.

Why couldn't you use the M54b30 throttle body?

m54= drive bywire m52= cable

I'm not that familiar with M52tu, but looking at the picture it looks like a DBW TB. What's the big plastic lump on the side?



Reason I'm interested is because I have an M54b30 intake on an m54b30 engine with an M50 throttle body that was necessary for the OBD1 conversion. I WOULD like to be able to use the orignal M54 TB because it fits with all 4 screws (I'm only using 2, also!).

To accomplish this, I'm working on a standalone electric throttle to electric throttle body interface. I have the prototype working nicely in the lab, I can input a sinusoidal signal off my signal generator and watch the TB respond. Open-close-Open-close...

The best part about it is that the Egas pedal is SMOOTH! It uses a full H-bridge with a motor control MOSFET. I'll have the car test running on it in a few days. I won't install it until massive testing, but it's getting close.

www.seattlecircuit.com

i think it is for the traction control but not sure

Thats a nice project you have going on there
let us know how it comes out

excellent work OP...i posted a thread about this not too long ago but with no real input. Many thanks!

thank you

haha! im so glad to see someone actually did this swap and documented it! other than the guy in south africa on the zroadster forum, nobody has documented this. i was planning on doing a write up myself next week with pictures and such but you beat me to it! and i couldnt be happier (you saved me a bunch of work b/\/\w STREETS)! excellent write up by the way! i couldnt have done a better job myself.

keep us posted on what kind of power gains you got.

ill keep you updated with power level

I have done engine swap on 323i e46 with 2003 530i engine but i use intake from 323i and i have K&N filtel plus "ebay" headers.I am going on dyno Monday..

Is the Injectors from 2000 e46 323i and 2001 e46 330i same size.????