throttle bodies

Discuss general engine, turbo and supercharger conversions in this section

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cass1_5503
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Post Sun Nov 30, 2008 9:08 pm

ive been toying with a few ideas of doing different engine swaps etc but decided to keep the original m40 lump 8O, its a sweet runner just needs a little more go, i need a list of parts im going to need to fit throttle bodies.
also what size would be best suited, would the m40 injectors be ok if not what do people reccomend. also how easy is megasquirt to install.
Jhonno
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Post Sun Nov 30, 2008 9:11 pm

I assume you are a fan of throwing money away then?
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

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GrindCulture
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Post Sun Nov 30, 2008 9:14 pm

Brave man...

http://www.diymiata.com/irtb.htm

Give that a read, even though it's for an MX5 it's still quite relevent, some good info on how to modify the TBs to fit on a car. Good luck :D
Not in E30s any more :(
cass1_5503
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Post Sun Nov 30, 2008 9:20 pm

Jhonno wrote:I assume you are a fan of throwing money away then?
well m30 and m50 conversions arnt exactly uncommon droping in an m42 is boring, im currently doing my apprenticeship and want to learn more about how the engines work etc, im not just doing it to make the car faster if that makes sense.
Brave man...

http://www.diymiata.com/irtb.htm

Give that a read, even though it's for an MX5 it's still quite relevent, some good info on how to modify the TBs to fit on a car. Good luck
thanks for the link
Jhonno
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Post Sun Nov 30, 2008 9:53 pm

if you want to learn about how they work, rebuild a stroker M50...
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

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cass1_5503
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Post Sun Nov 30, 2008 9:58 pm

hmm got me thinking again what would you use m52 crank its something else i could look into
Jhonno
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Post Sun Nov 30, 2008 10:05 pm

could use the m52 crank for a 2.8

m54b30 crank for a 3.0..
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

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leeparkes
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Post Sun Nov 30, 2008 10:09 pm

Jhonno wrote:could use the m52 crank for a 2.8

m54b30 crank for a 3.0..
how much would you expect to pay for a m54/b30 crank?
got me thinking now :roll:
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
cass1_5503
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Post Sun Nov 30, 2008 10:09 pm

cool given something to think about thanks
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dicko
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Post Sun Nov 30, 2008 10:17 pm

Lee if you find one I have some Hens teeth here I will swop you for it :P
GrindCulture
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Post Sun Nov 30, 2008 10:21 pm

Modify anything you can get hold of cheaply by using anything else you can find if money is tight. Do literally everything you possibly can yourself and build something interesting by any means possible, doesn't have to be an ITBed M40, stroker M50, just whatever you can get your hands on :D
Not in E30s any more :(
BadDave
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Post Sun Nov 30, 2008 10:27 pm

leeparkes wrote:
Jhonno wrote:could use the m52 crank for a 2.8

m54b30 crank for a 3.0..
how much would you expect to pay for a m54/b30 crank?
got me thinking now :roll:
As a comparison
A M52B28 crank can go for between £150-£200
M54 one will prob be a bit more IMO
Alpina B10 3.2L #187 (1 of 64 brought into the UK)
2.8L turbo build thread(work in progress)
http://www.e30zone.net/modules.php?name ... 27#1268227
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baptie0
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Post Tue Dec 02, 2008 10:45 am

get some bike throttle bodies, megasquirt, a good 4 branch manifold, there is power in there!! or stick a turbo on it, if you do the work its not that expensive.
Phill172
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Post Tue Dec 02, 2008 11:46 am

Bogg brothers will do a manifold and gasket for you for £250. You will need 4 bike tb's spaced and fitting using the silicone hosing. You will then need to either modify your loom or create a new tps. Maybe a little bigger on the injectors would help. Also you would need to figure a way of fitting trumpets to the throttle bodies, also filters and a way of shielding the heat. You will need megasquirt/omex/emerald anything like that. Good 4 branch as baptie said, bearing in mind you have a good engine with good compression at the moment...again as baptie said you do the work yourself you can pretty much easily do it for under 1k.

but....cant see the gain being as much as sticking a turbo onto it or supercharger....as to be fair with doing throttle bodies etc you may aswell go the whole way and do cams and headwork to really get the potential out of the set up....trust me on this! Done a 1.6 on tbs in a twingo and we got 113 whp, then i did cams, 40mm trumpets and am now seeing around 150whp....figures into speech, timed at 5 secs to 60, 1/4 miles was 14 secs dead...

but the only thing with going cams is you then coming into serious costs....

Turbo/supercharger will give you far more bang for your money, but it all depends on how much power you want and how much you want to spend at the end of the day.

iv never seen two turbo builds alike!