hello rhys,

i have the same car as you mate. i have not started with any mods yet-i'm thinking along similar lines to you really so i'll be keeping a look out on this thread!.

your induction kit, has it improved performance at all?

and whats your fuel economy like?

cheers mate,

nick

hello mate,

not had any problems so far with mine mate(touch wood!). mines got 126k on the clock and runs pretty good. previous owner did not look after the car at all the list of stuff i've had done is endless!. but i'm getting there now. any way back to the auto box-i have noticed a rough change but thats only when i really hammer it!!, my mate reckons the switchable auto is better but i think that only came on the 325i's. mine sometimes seems to take longer to change up but i dont know if thats my driving or the box, seems pretty smooth though really mate.

i'm defo gonna get an induction kit, she runs a bit rough at times and doesnt start so well in the damp, also the idling can be a little erratic.

i've heard the stainless steel exhausts are the best, bit out of my range at the mo having just spent near on a grand on her!!!!. maybe in a few months though!

cheers rhys

nick

hi guys

if you have a 2-door, then i have a full Motorsport (original BMW) kit for sale, which would make any E30 look 10 times better

i also have 4 headrest recaro leather interior in black

let us know!

hello alps what sort off money you looking for your bits might have them if price is right 

Rhys

Remember when you lower an E30 you can only adjust the camber and caster at the front. You will find that the rear tyres will wear on the inside. I have seen adjusters to fit the top mounts but cant remember the name!!

Cav16 do the KMAC range, have alook at the following link.

http://homepage.ntlworld.com/rs.king/kmac/">http://homepage.ntlworld.com/rs.king/kmac/

mailto:richard@cav16.co.uk">mailto:richard@cav16.co.uk

A throttle body upgrade is undetainable by Mr Insurance Company and gives 17% better air flow resulting in massive mid range power gains.

takes 20 minutes to fit and costs only £120.

Please explain how a throttle body upgrade gives 17% better airflow and massive mid range power gains.

The throttle body is opened up and machined to flow a 17% better air flow over the standard unit.

If you were to look at a standard body next to a modded one you will see just how different they are.

the walla on a standard body ar around 4mm thick !

Rhys, just make sure you let people know how good these are :)

It will transform the lax way the auto`s run i swear !!

I still don't see how opening the throttle body increases air flow by 17%.

Airflow is only a problem at high revs and a WOT so you modification will have no effect below that. Many BMW's run lean anyway at high rpm so more fuel is needed - not air.

What about the restrictions across the air filter, pipework, headers, inlet ports and combustion chambers.

Can you post evidance of the 17% improvement.

Why did BMW not bore out the throttle body if its so simple?

This is quite simple.

if you imagine the throttle body having an outer edge of which the pipe works clamps onto,

this means the pipework is larger than the inlet side of the throttle body.

by boring out the throttle body you are actually making the smallest point in the chain (throttle body internal) larger therefor allowing a larger amount of air into the car.

i have never stated that this would make a difference at anything like tickover but when your at say 3000rpm and in 4th gear and want to overtake you will accelerate much more quickly and with a far superior responce.

i have no figures as stated above but if your in any doubt i am willing to get some done (this is on the cards now anyway)

Like i have also mentioned above, if you fit one of my throttle bodies and dont feel a good improvement i will refund your full costs.

who else offers this type of deal ?

The narrowest point is the inlet ports though (and the inlet headers on some cars). Strictly speaking, the greatest restriction is the throttle butterflies - but I guess you are only referring to Wide Open Throttle situations.

I cannot see it working at mid revs either - at 3000rpm the engine is consuming around half the air at 6000rpm.

well, if i cant convince you there is no point in me trying :)

they do work and they work very well, this is something that has been used on the VW`s for years in the aftermarket scene as well as many other ranges of vehicles.

if you care to pop over to birmingham some time i will take you out in a before and after test on my very own car.

Looking forward to hearing the results Rhys.

Just got myself a new car..

'88 325ise auto

Will be making a few mods once i have a bit of cosmetic work done.

Going to lower(a little), some new wheels(maybe 17's), and possibly a chip. Not sure if i'm going to need a brake upgrade though with the chip.

Good luck with the fitting!!!

Thought I might squeeze this in the Mods topic...

Need new pads, the light's been flashing on the dash for a day or two now. - What do we recommend for good hot and cold stopping power? Just for road use (occasionally quite quick road use) but something that will last a track day as well?

Also tyre recommendations, as I can't afford the rims I want at the minute I'll have to replace the 14"ers...

Car as below. :) Cheers!

Omi, I've got a set of 15inch BBs cross spoke for sale off my 325 Sport, They are in very good condition with good tyres (Michelin) Email me if your interested.

Cheers mate

Turnyg@aol.com

dlg_e30:

you have hit the nail on the head.

BMW are commonly known for restricting cars just to satisfy the insurance banding, you only have to look at the latest M3`s to verify this, they are limited to 155mph when we all know they will do 170mph all day long !!

Sorry, I still don't accept it.

The 155mph is a gentlman's agreement and electronically done - it has nothing to do with the throttle body. We are talking about road cars not track cars too.

I am quite familiar with tuning E30's and throttle body modifications are of no benefit without other engine breathing mods such as cams & valve work and often need fueling work too.

I can't help thinking that this is spamming the board with unsubstantiated devices.

listen, if you have any knowledge of performance on the M20 engine and yet dont accept a throttle body mod will tield more power then i doubt anyone will ever take anything you have to say seriously my friend.

without the wanting to upset you in any way i have to make it clear that this mod works, AND IT WORKS WELL !!!!!!!

by opening the throttle body and fitting the larger butterfly you yield more flow of air creating a better burn of air and fuel which makes for more power.

if your still having trouble getting your head round this you can pop over to my place and i`ll fit one to your car free of charge for a trial and if you feel no difference we can do a before and after power run at my local rolling road.

if there is no gain by the throttle body i will pay you your fuel, the rolling road costs and £100 for yourself as a daily wage.

if the throttle body yield an increase you just cover your own expenses and the rolling road (around £40 for both runs)

is this fair ?

I agree with b318isp (although I do not feel e30gumball is spamming). I think our problem here is one of context and of demonstrated results.

This mod is reputed to be particularly effective on the 328i (hence my interest on the http://www.bmwcarclubgb.co.uk/forum/display_topic_threads.asp?ForumID=47&TopicID=2105&PagePosition=1">other thread). The reason for this is the throttle body / manifold on that particularly engine was used to artificially introduce power restriction in order that the 328i fell into a particular German tax bracket. Therefore the mod you propose has the potential to realise particularly noticeable gains on a 328i.

If I am interpreting what I have read correctly, then the theory should hold on other models, but the result is unlikely to be as pronounced as on the 328i hence b318isp's healthy (IMHO) scepticism and inference that further 'breathing' mods will be required in order to fully develop any gains.

As I've said before Dyno plots would help, as would owners with this mod fitted. I looked on the forum you suggested and could see plenty of interest, but no success stories - perhaps I used the wrong search term(s)?

I`ll get a few owners to post here with there findings.

I would doubt the difference on the e30 would be as substantial as on the 328i car as like you sais, it was restricted highly from bmw using this method of tighter ports.

Of course changing the air flow meter as well as the air filter makes a good gain, and then you can match the ports on the inlet manifold to the head as well gaining good healthy increases.

A great upgrade making for the best (engine in job) would be to change the throttle body, match the inlet ports and change the air flow meter and filter.

This will transform the car in many respects.