has any one had the zone bbtb???
Moderator: martauto
Have had my BBTB for about 6 months and it does make a big difference to the overall running of the engine.
Engine revs cleaner and seems to have a few extra ponies in the right places.
For the money you would be silly not too, great mod and Ian is a top bloke too, very helpfull and has forgotten more about e30's than most will ever know.
When you compare the std and the BBTB you'll see exactley what has been done and it makes just makes sense too do it.
Engine revs cleaner and seems to have a few extra ponies in the right places.
For the money you would be silly not too, great mod and Ian is a top bloke too, very helpfull and has forgotten more about e30's than most will ever know.
When you compare the std and the BBTB you'll see exactley what has been done and it makes just makes sense too do it.
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320Touring
- E30 Zone Team Member

- Posts: 12316
- Joined: Fri Feb 11, 2005 11:00 pm
- Location: Glasgow (Scotland)
scuse me for being thick, but whats bbtb?
and more importantly do i want one?!
Cheerz 230Touring
and more importantly do i want one?!
Cheerz 230Touring
The big Unit Parts Clear out Make me an offer on parts!
http://www.e30zone.net/modules.php?name ... 81#2766881
http://www.e30zone.net/modules.php?name ... 81#2766881
It's the standard throttle body bored out to give an extra 16% or so extra air in, new seals and a larger butterfly flap.
More air in, more power out, but as it's only slight increase it doesn't effect the running or need anything changed to cope with the extra.
Gives the engine a whole new life, very worth while mod indeed.
More air in, more power out, but as it's only slight increase it doesn't effect the running or need anything changed to cope with the extra.
Gives the engine a whole new life, very worth while mod indeed.
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320Touring
- E30 Zone Team Member

- Posts: 12316
- Joined: Fri Feb 11, 2005 11:00 pm
- Location: Glasgow (Scotland)
thanks fozzy! how stupid am i? Big Bore Throttle Body
how much is the zone one, and will it work ok with the zone chip?
how much is the zone one, and will it work ok with the zone chip?
The big Unit Parts Clear out Make me an offer on parts!
http://www.e30zone.net/modules.php?name ... 81#2766881
http://www.e30zone.net/modules.php?name ... 81#2766881
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MONSPORT42
- E30 Zone Regular

- Posts: 506
- Joined: Mon Jan 10, 2005 11:00 pm
- Location: Portsmouth
Here's before and after for info- new one on the left. My car seem to rev much freer with the BBTB and is more relaxed at cruising.



YOUR LEFT FOOT'S FOR BRAKING
email: throttlebodies@e30zone.co.uk for all info.
There are a few options these days.
As for the chips, email ant@e30zone.co.uk I think Ԛ£55 or Ԛ£60, but when you stick it in, you'll be
all day long!
There are a few options these days.
As for the chips, email ant@e30zone.co.uk I think Ԛ£55 or Ԛ£60, but when you stick it in, you'll be
- buster
- E30 Zone Addict

- Posts: 3779
- Joined: Sun Jan 09, 2005 11:00 pm
- Location: Near middlesbrough,Teesside
they also come with tps switch,and set correctly.
Well enginered were my thoughts also.The 318 is one looks good,didn't realise they had a second throttle disk,a bit like a good old twin choke webber !!
Well enginered were my thoughts also.The 318 is one looks good,didn't realise they had a second throttle disk,a bit like a good old twin choke webber !!
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E30Mark
- E30 Zone Team Member

- Posts: 8107
- Joined: Sun Jan 09, 2005 11:00 pm
- Location: Wimborne, Dorset
Ԛ£120 exchange
1 & 2 bed flats in Bournemouth areas, with parking
PM for details
PM for details
Hi 325Dude! Convinced?
No probs with your emails. Drop me a line, and I will sort you one out. alpina527@aol.com
Yes, I do M20, M30, M42, and M40 bodies. All @ Ԛ£120 exchange.
No probs with your emails. Drop me a line, and I will sort you one out. alpina527@aol.com
Yes, I do M20, M30, M42, and M40 bodies. All @ Ԛ£120 exchange.
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zaust
- Zone day release
- Posts: 13007
- Joined: Sun Jan 09, 2005 11:00 pm
- Location: Somewhere in Hertfordshire , or press Ctrl + W
I have seen the work on ians tb's and i'v been trying to get one
already have a bbtb from else where but it's about 5-6 years old
and dosent seem to have gained size in on the butterfly.
but i did notice a difference, It made throttle more feel more
snappy, Ian if you read this iv sent e mails but no response and i
want one please..
already have a bbtb from else where but it's about 5-6 years old
and dosent seem to have gained size in on the butterfly.
but i did notice a difference, It made throttle more feel more
snappy, Ian if you read this iv sent e mails but no response and i
want one please..
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BenE30
- E30 Zone Regular

- Posts: 479
- Joined: Mon Jan 24, 2005 11:00 pm
- Location: Pen-y-ffordd, Chester, UK
Will it make my M20 engine seem a little bit less revvy at cruising speeds? sometimes i feel like i am only in 3rd when doing speeds of aaound 80-90 think i will be in the market for one are they DIY or does someone need to tune it or something?? sorry for sounding dumb!

Guys, for the record, the e30zone sponsored 325 racer runs a zone chip and BBTB exactly the same as supplied to you guys from here.
The track is often the place to acid test mods because of the variation in demand on the engine and the combination of the bbtb and chip has proven to be superb. The engine pulls more smoothly throughout the range and pulls noticably harder in third and 4th on the racer. It's a well known fact that the M20 is restricted by lack of air getting in, and you WILL see and feel a diffference on even a basic engine.
Looks like the new site hasn't got the stats on the conversion posted, so I will ask Steve if he can dig them out and post here.
The track is often the place to acid test mods because of the variation in demand on the engine and the combination of the bbtb and chip has proven to be superb. The engine pulls more smoothly throughout the range and pulls noticably harder in third and 4th on the racer. It's a well known fact that the M20 is restricted by lack of air getting in, and you WILL see and feel a diffference on even a basic engine.
Looks like the new site hasn't got the stats on the conversion posted, so I will ask Steve if he can dig them out and post here.
Ben - If the engine sounds revvy it's not really something a bbtb will make any difference to. My guess is that if you have a performance exhaust or similar then it will sound worse than it is anyway. The real benefit of the bbtb is in how well the engine will pull when you put your foot down and also when running at higher revs the engine isn't going to be choked for air quite as much. It's a bit like the Tunes advert!! "Helps you breath more easily"BenE30 wrote:Will it make my M20 engine seem a little bit less revvy at cruising speeds? sometimes i feel like i am only in 3rd when doing speeds of aaound 80-90 think i will be in the market for one are they DIY or does someone need to tune it or something?? sorry for sounding dumb!
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MONSPORT42
- E30 Zone Regular

- Posts: 506
- Joined: Mon Jan 10, 2005 11:00 pm
- Location: Portsmouth
If you look in FAQs you'll see a before and after dyno graph. That was my car and although it's a 2.7 it is also an automatic. You just need to swap over the automatic TPS to the new body. Easy job. Didn't change my fuel consumption. Just filled up yesterday and showed 29.7mpg after a trip to the west country and back plus a little town driving on top.

YOUR LEFT FOOT'S FOR BRAKING
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d6dph
- Married to the E30 Zone

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- Location: Tiptree. Essex
this thread has got me thinking, might have to buy a chip + tb before the wheels. not going to be using the car every day from monday as my company car turns up so f**k the fuel consumption...... wanna go faster! 










