327i build advice

[SELfor50]

Oy... I'm in Straya.... I'm after a 325i manifold and TB also.. plus a few other little goodies.

Wreckers here are jewbags or don't have the parts available.

I'm going to post a new thread in parts wanted section. Anyone other Aussies after parts that can be shipped from same location then I'm sure we can work out a bulk freight etc. maybe?

[digger]

well, its my "goal" to make the motor not fall flat after 5000rpm(compared to my stock eta), if it does oh well, but i have a feeling it wont. i plan on lightening up the rods and valves along with plenty of head work, balancing the crank, miller maf/war chip, 1.3motronic, all needed b25i parts, and obviously a full exhaust. my logic is to get the air to flow smoother, with less reciprocating mass, to equal useable higher revs. just because you can flow more air, doesn’t mean you WILL make more power. you know, just like saying, its the motion of the ocean, not the size of the boat that matters...

it is pretty hard to not improve on the eta's topend power delivery.

As you have eluded to you need the running engine (transient conditions) to flow more air as oppposed to adding parts that flow well in isolation under steady state conditions which is why the bigger does not equal better. Or in other words velocity needs to be considered.

[chrisbmwe30]

let me know prices of 1 shipped just manifolds im going miller maf for this one im in adelaide australia postcode 5038 and how much you want for the manifold yourself if it works out better than wrecker price here ill get you guys to hook me up.

[StereoInstaller1]

So what's the total price?

OK, how about we figure out how to get 3 of them shipped?

You need throttle bodies. AFMs (or, can you get M30 AFMs easily?)

Seriously, if they are that valuable, get a group buy together. Chat to your mates.

I still want to do a group buy with subwoofer boxes. Wonder what it'd cost to ship a pallet to you guys.

Luke

[pantelones]

I also don't know why you think that the 731 head is going to stop the engine from falling flat after 5k rpm. The drop off is due to the horrible rod ratio, and besides, the 731 doesn't flow as well as the 885 head so if anything it is going to drop off even worse.

well, its my "goal" to make the motor not fall flat after 5000rpm(compared to my stock eta), if it does oh well, but i have a feeling it wont. i plan on lightening up the rods and valves along with plenty of head work, balancing the crank, miller maf/war chip, 1.3motronic, all needed b25i parts, and obviously a full exhaust. my logic is to get the air to flow smoother, with less reciprocating mass, to equal useable higher revs. just because you can flow more air, doesn’t mean you WILL make more power. you know, just like saying, its the motion of the ocean, not the size of the boat that matters...

[scottinAZ]

So what's the total price?

let me check the sizes and weight, and ill get back to you tomorrow

[chrisbmwe30]

So what's the total price?

[scottinAZ]

I also have one gathering dust, but shipping from the US is going to be killer, over 120 bucks (USD) if I can get it into a box that fits the guidelines

[matt0300]

Seta *

[chrisbmwe30]

would u like to sell them?

[chrisbmwe30]

How much? Where are you located?

[StereoInstaller1]

man...I have like 3 or 4 of the B25 intake manifolds sitting around waiting for scrap aluminum prices to go up

[chrisbmwe30]

So the b25 manifold with port polish, o size valves mild cam will keep it breathing right through the rev range?

[nando]

they pretty much match up perfectly to the 731 as is. they're undersized compared to an 885 inlet.

[chrisbmwe30]

That I could probably do yeah. Do they match up with standard or with a port and polish?