E30 Zone

thinking aloud really, could be a plan for next year, but would twin weber 45s make any difference in preformance to an m42


the sound would be

yes i know an engine conversion would be better but im a deluded IS owner

Too big.. Stick with 40's

An engine conversion is NOT better if you want to modify it...
The M42 is probably the best BMW engine to mod since it gives the best returns per £££... although you do start off with pretty shite power


Webers on an M42 would sound pretty cool if they would work though
Would be different too.

thats what i was thinking, they would sound pretty cool

dbilas dynamic do inlet manifolds for them, which im pretty sure are for carb there just under £300 mind you

why would the power be shite, i relise they would need properly setting up, there is a weber authorised dealer and tuner 20 mins away from me

alex,have you been out in it properly yet the way it is?
i'd like throttle bodies on mine 1 day.but chipped up with a filter i left my mates v8 mk111 cortina off the lights for dead.
he gave up.2nd gear shift give out a kick to the side.
how the fond memories came flooding back after years of fwd wrongness.
more bhp=

no its more for the sound

it better be quicker than my mates 2.0 v6 mazda shite he keeps going on about it being a v6 and fast

oh did the auto elec fella sort out the minor prob?

lots of money, lots of petrol, lots of noise and little else. Save your money and buy a turd with an engine !

yer it runs fine now cost me 20 quid, my mate who done it (auto leccy) said it was a rite mess, it was an old immobiliser that had been partially removed and bypassed that had kicked back in so the car had been immobilised but could not be disarmed, but now the indicators dont work the old alarm/immobiliser has been wired in by gorillas

there was a green and black??? wire which was sliced into a purple one under the dash, he has connected it back to normal which i think could be why the indicators dont work, its obviosly a bodge to get them working again so i will swop them back over

pacerpete wrote:lots of money, lots of petrol, lots of noise and little else. Save your money and buy a turd with an engine !

ive got a turd with an engine, its called a vauxhall corsa

Alex wrote:no its more for the sound

it better be quicker than my mates 2.0 v6 mazda shite he keeps going on about it being a v6 and fast

i had a 323f 18i executive that was well quick.i sold it as they were mostly driven by birds or male hair dressers i got for £250 under a tree for a yr
moped it up mot and taxed sold for £1100

a nice car a/c and some nice toys.but fwd wrongness and a fat ass.
but a nice prophet

magpie wrote:nice prophet

Lolz!

You'd be a hundred times better off using ITBs on your engine than stepping back into the dark ages with carbs.

With EFI, you can get your fueling correct for any combination of engine speed and throttle opening. With carbs, you can spend a fortune trying to get your fueling right.

Unless you're into historic racing or something, forget about carbs dude

yer my mate has a 323, s reg, 2.0 v6 aircon, green, cream leather all looks shit because its jap he paid £850 for it with a bad missfire on an engine with 40k took it to get fixed spent 500 and still missfired and took it somewhere else paid 400 and now its fine

so thats ..... £1750 in total

all it needed was a new dissy cap and rotor arm

Turbo-Brown wrote:You'd be a hundred times better off using ITBs on your engine than stepping back into the dark ages with carbs.

With EFI, you can get your fueling correct for any combination of engine speed and throttle opening. With carbs, you can spend a fortune trying to get your fueling right.

Unless you're into historic racing or something, forget about carbs dude

dbilas do a nice setup for the IS, £1700 mind you

magpie wrote:

Alex wrote:no its more for the sound

it better be quicker than my mates 2.0 v6 mazda shite he keeps going on about it being a v6 and fast

i had a 323f 18i executive that was well quick.i sold it as they were mostly driven by birds or male hair dressers i got for £250 under a tree for a yr
moped it up mot and taxed sold for £1100

a nice car a/c and some nice toys.but fwd wrongness and a fat ass.
but a nice prophet

well it had sel written all over it

personally i think there ugly things, there trying to hard to look like coupes but have too many doors

Turbo-Brown wrote:You'd be a hundred times better off using ITBs on your engine than stepping back into the dark ages with carbs.

With EFI, you can get your fueling correct for any combination of engine speed and throttle opening. With carbs, you can spend a fortune trying to get your fueling right.

Unless you're into historic racing or something, forget about carbs dude

Awesome. My friend/tuning-rival is just about to start work on making his twin cam EFi Ford engine into a carb feeder. Sometimes I think I'm going to need to break the bank at A-Tech to have a car faster than his. Other times I know I can just sit back and let him be a spoon.

Turbo-Brown wrote:You'd be a hundred times better off using ITBs on your engine than stepping back into the dark ages with carbs.

With EFI, you can get your fueling correct for any combination of engine speed and throttle opening. With carbs, you can spend a fortune trying to get your fueling right.

Unless you're into historic racing or something, forget about carbs dude

that's the joby i meant,the only way to go before the turbo!

Is it possible or worthwhile to put ITBs onto an M20?

Cloud wrote:Is it possible or worthwhile to put ITBs onto an M20?

Yes and yes.

Have a look/search at user "--alpina--" He has Dbilas bodies with special mods on his M20, very nice it is too.

Thanks.
I'd not considered it before, but for the supercharger project, I expect it'd work superbly.

Alex wrote:

personally i think there ugly things, there trying to hard to look like coupes but have too many doors

wor lass hated it she smacked her head getting in the first time.
so it had to go,she said it had horrible eyes.and was ugly.
when you shut the door and forget all this,they are quick.
the v6,well i had a guy boast to me that his will do 140 mph.
he said this at a filling station.but mine was nipping clean.
nob,my cars faster than yours.may be but mine cost £250

Turbo-Brown wrote:You'd be a hundred times better off using ITBs on your engine than stepping back into the dark ages with carbs.

With EFI, you can get your fueling correct for any combination of engine speed and throttle opening. With carbs, you can spend a fortune trying to get your fueling right.

Unless you're into historic racing or something, forget about carbs dude

Good post /\, take note people.

Firstly tuning the m42 is fairly silly, but I won't go there in too much detail. As alex said, throttle bodies are so much better, you lose no driveability and you have everything to gain once you start camming the engine.

In peugeot tuning carbs are generally only used in rally cars that spend all of their time at between 5000-8000rpm so they do not care about driveability, just power. They would all be using throttle bodies if they could afford them btw

Throttle body setups arn't cheap, £1700 potentially on a 4cylinder engine once you have considered custom management which it 100% needs. Its an investment that we may eventually do on the mi16, fancy making me a set Alex!?!

Changing a EFI engine to carbs is sacrilege!

magpie wrote:

Alex wrote:

personally i think there ugly things, there trying to hard to look like coupes but have too many doors

wor lass hated it she smacked her head getting in the first time.
so it had to go,she said it had horrible eyes.and was ugly.
when you shut the door and forget all this,they are quick.
the v6,well i had a guy boast to me that his will do 140 mph.
he said this at a filling station.but mine was nipping clean.
nob,my cars faster than yours.may be but mine cost £250

his v6 has 138bhp and weighs 1700kg

mine is 136bhp so 140bhp and weighs 1100kg "i think"

why would the power be shite

I meant as in M42 in standard guise is abit poor... but with only a few quid spent it can give decent gains and then if your really crazy can give it nearly 6 times the power it has orginally:twisted: So it really is a good engine to modify

I kinda agree with Turbo-Brown. Just didn't really want to shoot you down from the start, lol

The M42 is a modern engine so it deserves ITBs...
Webers would just be cool to be different really if that's really what you wanted.

I reckon you'd struggle to get 160bhp from Webers too really but would make lots of noise
Setting them up requires quite abit of skill too, Guy over here bought the M10 316 that was on carbs and has had quite abit of trouble getting it to run right.


To be honest... I'm not really sure about the dbilas ITBs as I really can't see how Cylinder 1 can be getting enough air with the design of the intake compared to lets say BMWs take on things with the S14 and S42.

Still, I'll reserve proper judgement on them when a mate of mine gets his iS running with them. I must ask him where he got them since as far as I know, he didn't pay nearly 2000 euro for them!!!

Other way you could go if you fancied abit of work is to fing S50 ITBs and make a custom plenum and stand-alone like Tim-S did very well

M42s on ITBs should sound every bit as cool as carbs anyway and give better performance

lamb to the slaughter,323f-off
and take that ass with ya.

think what ever it will be expensive, weber carbs just sound simpiler, but if there is no gain its a bit pointless

think i will chip it and fit a bbtb first

one step at a time m8.woooahhh a tad.get used to it first.
meet each other and bond.

Yeah, just get a chip and sort the handling first. That's what I done along with a few gadgets.

so far... it's
Smoked Headlights
Smoked indictors and side side repeaters
325 oil cooler grille
Anthracite Sport check interior & //M seat pins
Tec 2 'wheel & //M gearknob
13 button OBC
Map light mirror
Rear blind
Power Flow backbox (Supersprint half system on the way)
K&N Panel Filter
M44 timming chain and S50 tensioner upgrade
Superchip and re-map
Heater plate removed
Z3M shortshift
4.1 large case LSD
Bilstein B8s
Eibach springs
M3 control arm bushings
E46 M3 Cab rear top mounts
E46 steering rack
Mintex pads,
Goodridge braided lines
Cruise-control
LED sidelights
4300K HID low&High beams
4300K HID fog lights
Now, it's time to go after that 100bhp/litre

So there's loads of little things you to do before you go in search of more power

some nice mods there

4.10 lsd i bet that took some finding

is it worth removing the heater plate????

mods ive done:

13 button obc (needs fitting)
map light mirror (needs fitting)
dye carpets dark grey
fit unworn tech 1 wheel
new bmw gear nob
new gear gator
get my 15" bbs refurbed with new center caps
de chromed leccy ariel
fit tweeter pods along with comps amp etc etc
fit tech 1 spoiler
clear side and front indicators
service

the list goes on

still got loads more to do

the plan is to spec it up as much as possible

all good stuff lads.

4.1 LSDs aren't as rare as they are made out to be to be honest...
Just trying to get them shipped over from the states is the tricky bit...

I'm not too sure about the heaterplate really... It might have made the car very slightly more responsive alright but nothing to make a song and dance about. Worth doing if you want alright as it's completely free:D
I reckon it might work well with a Big bore throttle body maybe

My shadowline electric ariel broke so I'm on the look out for another black one...
Tweeter pods are a nice touch too


Specing it up as much as possible is my aim too, eventually by having all the cool bits and toys from the options list down to the heater door locks and washer jets

May I ask what the advantage of doing this?

Alex, don't go chasing power yet. My touring is still plenty quick enough for my lack of driving skill, so getting it to handle and stop better will make it much more fun to drive, without the risk of you loosing it and putting it through a wall.