M30 BBTB build

[beefy]

hi all im thinking of re boring and making a new butterfly for the m30 throttle body. The engine is currently completly standard.

Is this worthwhile what gain are to be expected with regard to power, driveabilty etc.

Ive read about 325i bbtb and there seems to be a good response to them being good performance up grade, but i havent found much information for the m30.

I dont think m30 throttle body is available in the Zone shop but i have seen one on american ebay, because of this i will be building one myself or getting a machine shop to do the work.

If this can be done i will try to have a few made to sell on to zoners, not sure of prices or anything yet but if your intrested let me know.

Any information or opinions appreciated cheers.

[ric325i]

let us know.

the idea is a good one and we are always after more power i need to get mine running first though

[beefy]

yeah more power is always good. Got to find out some more info first but if it goes ahead ill let you know.

[Ziggy]

I'll certainly be interested in one

[Milko]

I think that alpina527 guy does them.....

[beefy]

Ok well that throws a spanner in the works as i am planning to build and supply them

[FormerMember]

Easiest would be to swap ITB:s from M88 (E28 M5 engine)...

[Andy335Touring]

Beefy, i take you have some engineering contacts ?

Do you think you could get a few pairs of these 750 brake conversion brackets made up ?

[Andy335Touring]

Easiest would be to swap ITB:s from M88 (E28 M5 engine)...

Easy is not a word i'd use for that job

[Speedtouch]

Looks like a new pantyliner!

[FormerMember]

Easiest would be to swap ITB:s from M88 (E28 M5 engine)...

Easy is not a word i'd use for that job

Yes, it's not easy, but i can't think of easier option..

There have been couple of "plug and play kits" on ebay, for fitting M88 ITB:s to M30..

[beefy]

Yeah im in trade, would of thought so cant make a lot out by that drawing tho, how thick is the plate is the profile critical too. How many do you need are the 12mm holes, clearance holes for M12 thread.

[beefy]

alpina527 hasnt posted on here for a few years judging my by search and it seems like he supplys the bbtb for the zone shop, and the zone shop (evolve) dont list a m30 throttle body.

I believe there is only two different types of m30 throttle body one from the early engine and from the late (1983-93) is this correct?

[Andy335Touring]

TBH it's not my drawing so i'm not sure on all the details, i was thinking that 10mm mild steel should be OK with the recessed area being 8mm ?

How much more would it be in stainles steel ?

[DRIFTBOY]

Beefy - pm sent ref the caliper brackets!

[beefy]

Not exactly sure so if i can ill get prices for both.

[ric325i]

Beefy, i take you have some engineering contacts ?

Do you think you could get a few pairs of these 750 brake conversion brackets made up ?

if these can be made up cheap i can see a sudden shortage in 750 calipers.....oh they are in shortage already.

still love the plan. would 750 caliper etc fit under 16's? i know they dont fit 15's.

bbtb - when you know prices man but i would not be after something like for a month or 2.

[ric325i]

oops.

[DRIFTBOY]

I beleive that these brakes fit under some 16" wheels but certainly not all!

I hope they fit under my new 17" TSW Councils but I think most 17" wheels are safe from what I've read.

750 calipers are also the same as some 740 and I think some 735 and 540s.
The markings to look for are '60/28/302' as there are two different sizes, I think to do with the thickness of the discs.

[ric325i]

good info man!

we need any help stopping the big six. ive got some 17's of jaffro (cheers man) but i may be getting some 16's which i would like more, lots lots lots more.

your going council.....nice

[beefy]

spoke to some guys at work and the best way to manufacture these will be cnc machined. Not sure of price yet im going to get some prices for the steel today.

How much do 300mm.de sell these for?

I think a new thread may need starting for this so people know about them.

I also need to know how many of these are wanted.

[alpina527]

I am still about, and yes, I do have M30 Bbtb's in stock

[Ziggy]

So... any news on the BBTBs Beefy?

alpina527 - how much are yours?

& does anyone have any experience of the gains to be had on an m30?

[Lloydie38]

I'd be interested also - what price and what sort of power gains are we talking in conjunction with other mods of course

[Rav335uk]

Whats happened about the m30 bbtb?????????????????????
I would be interested too

[turkey]

Also very interested, need more power! someone must have some info on these!

[Rav335uk]

bump