318is engine mods?????

[Shane325i_sport]

I have a totally standard 318is and i want to know what i could do to give it more power, apart from an engine conversion.......

[maxfield]

Depends how much you want to spend...

You could go F/I, go for a full N/A build or just bolt a few bits on...

[Shane325i_sport]

Dont want to do anyting major to it, what few bits could i just bolt on???

[maxfield]

ITG air filter.
BBTB.
Cams.
Exhaust - OE will be spot on.
Remap.

[Shane325i_sport]

Whats BBTB?

[march109]

Big bore throttle body.

[6-Shooter]

Big Bore Throttle Body.

Some people think this does nothing though.

With the M42, a re-map / chip is probably the only thing worth the money.

Cams are expensive for what they yield, exhaust - again opinion is divided and even Performance filters have been seen to reduce power in some cases.

So before you go throwing loads of money away, think about what you want (and need) and theh go that route.

If it's lots of power then you have to go Forced Induction.

I have not mentioned engine rebuild as lighter pistons, hotter cams, ti-con rods, capacity and compression etc is insane money for an E30 318iS.

I would go with a re-map and perhaps the BBTB as it shouldn't set you back more than £500 for both - then if you still want more - you may have to get a new engine / car.

[Shane325i_sport]

Cheers lads....

[maxfield]

Ti-con rods

I wouldn't want to think how much they are. Although you'd only want them if you were going stupid revs..

[6-Shooter]

I was just stating how far you can go on any project - but at some point you have to drop a reality check.

[alex-e30]

take a look round the evolve zone shop, you can get some well priced engine mods there.

a stantard e30 318is runs at 136bhp so if you start pumping stupid brake out of it things will start breaking so think about the bottom end con-rods etc...............thats if you go crazy with mods

[maxfield]

I think all the bottom end is forged anyway...

It's not the amount of BHP that will break the engine, it's how much PSI you are using or how many revs you're going to..

[fuzzy]

turbo is the way to go for meaningful power increases and easy/cheap future power upgrades.

[6-Shooter]

But Turbo's are so.... russian.

[baboon5151]

if you go for air filter its best just to leave standard box on but put a k&n pannel filter in.i tried induction kit found i lost power so changed back & fitted pannel filter much better.

[mick_318is]

First easy mod is the heater plate removal. You get some instant gains without having to spend any money. There are several threads on here even a technical article I seem to remember

This is next on my list when I get the time.

Mick

[6-Shooter]

First easy mod is the heater plate removal. You get some instant gains without having to spend any money. There are several threads on here even a technical article I seem to remember

This is next on my list when I get the time.

Mick

This sounds good and makes sense in theory so I'd try that for sure (think I will!).

The cone filters always confused me as you have channeled air into an enclosed space with the AFM box set-up versus a round cone thing that is just gathering whatever air manages to make it's way through the grille.

I wonder if an enlarge intake from the grille to the AFM would make a difference - like some massive duct tubing or something...

Made of carbon...

With 'CSL' written on it...

[Rosc0PColtrane]

How about an extra couple of cylinders????

[jam172]

Nice one Nathan but i think you'll find that your 6 cylinder 320i only produces 124BHP in standard form

Sorry mate, us 318is boys need to stick together

[6-Shooter]

Nice one Nathan but i think you'll find that your 6 cylinder 320i only produces 124BHP in standard form

Sorry mate, us 318is boys need to stick together

PEEEEEEEEEEEEEEWNED!

[Rosc0PColtrane]

Irrelivant!!!

[6-Shooter]

Irrelevant how?

You got revealed! All that 6-Cyclinder noise you make and you're rocking a 320i?!

Shit, you need 2 LESS cylinders dog to play with the big guys.

[jam172]

LOL, thought that might rattle your cage Nath, no offence intended mate and my IS engine is sat in my 316i Touring, so i shouldn't really be quoting figures anyway.

That said the M42 is a very understated engine and crys out for a few mods, i have just fitted the Zone chip to my ECU and there seems to be more usable power through the rev range, i wouldn't say it produces anymore power though.

In my opinion, i would try one thing at a time, next on the list for me would be the BBTB, i have heard mixed reviews on the benefits in removing the heater plate, but it seems to be a job to be done at the same time as the BBTB.

I would say that before you attempt any mods, make sure the engine is running at it's best in standard form first, check the engine breather hoses are not split (under the inlet manifold, mine were) and clean out the throttle body and remove and clean the Idle control valve (use brake/clutch cleaner or carb cleaner), new plugs, new/clean airfilter and oil and filter change.

Last and not least, the M42 is still giving around 34MPG, how's your MPG Nath

[6-Shooter]

PETROL PWNED!

[dannyboy759]

buzzy little M42 out great big heavy M20 in!!

Expensive Twin cam wrongness!!!

[jam172]

Why expensive?

The M42 is cheap to run, cheap to maintain, duplex bullet proof timing chain, don't see your point really?

The M20 320i has the heavy fuel consumption of the 325i without the power? Each to their own, i have two E28's one is an M5 (now that is expensive to maintain) and a lightly modified 528i M30, it's thirsty but has the power to go with it.

Please explain?

[Rosc0PColtrane]

I don't need to drive fast as my car doesn't make an embarrasing noise akin to a copy typist on Amphetamines!!!

Expense is Timing chain and tensioner change opposed to a cambelt on a m20.

(Jamie, I couldn't give a rats a$$ about my 2ltr, it's in a cab so sooper heavy and sooper slow, FTW, I like winding up the m42 crowd who seem to think the i.s was forged by the hands of God himself and assembled by superman. Why just the other week an i.s owner claimed to nail a scooby through the twisties!!)

My b20 is irrelevant as I said 2 extra cylinders, not a b20 would be a modification for the m42. Next you'll be telling me it's a 'baby M3'. A b25 is an improvement, an m50 is an improvement ad inifinitum.

Stop willy waving about you very impressive fleet of chrome turds and antiquated hulks of tin worm food......

(I'm just jealous really!!!!!)

[tim_s]

And there was me expecting to find a thread on engine mods for a 318is.
An 'improvement' is adding a belt driven 70s belt-driven 2v engine that typically make an extra 30hp at the wheels (if you're lucky) for an extra 700cc, 2 cylinders and extra weight forward of the front axle? fantastic. and original.
oh and ftw = for the win, fwiw = for what its worth

[march109]

wasn't the m42 forged from adamantium? and instead of CO2 I heard its so good for the enviroment the only things it gives off out the tailpipe are butterflies, rays of sunshine and fluffy baby bunny wabbits.

Seriously I did own a 318is and a 325 sport at the same time, funnily enough in the same colour. Although the sport was faster, and easier to maintain on my driveway I didn't feel as confident throwing it into corners as I did in the 318is. The 318is also did just sip on the old fuel unlike the sport which gulped no matter how much you nursed it.

[Ziggy]

Why put a bigger engine in an iS? Kinda defeats the whole point of the car, whether you like it or not...

E30Mark had a firebreathingnutterb*****d chip in his at one point, & aparrently it made a huge difference, if you can find one...

[jam172]

I don't need to drive fast as my car doesn't make an embarrasing noise akin to a copy typist on Amphetamines!!!

Expense is Timing chain and tensioner change opposed to a cambelt on a m20.

(Jamie, I couldn't give a rats a$$ about my 2ltr, it's in a cab so sooper heavy and sooper slow, FTW, I like winding up the m42 crowd who seem to think the i.s was forged by the hands of God himself and assembled by superman. Why just the other week an i.s owner claimed to nail a scooby through the twisties!!)

My b20 is irrelevant as I said 2 extra cylinders, not a b20 would be a modification for the m42. Next you'll be telling me it's a 'baby M3'. A b25 is an improvement, an m50 is an improvement ad inifinitum.

Stop willy waving about you very impressive fleet of chrome turds and antiquated hulks of tin worm food......

(I'm just jealous really!!!!!)

Nathan as i am sure my wife would confirm, i never willy wave, as even close up you would see nothing waving

If you mean boasting, then yes i know you're jealous

[Rosc0PColtrane]

Yes I meant boasting!!!

On the other point, it's not the size of the boat, it's the motion in the ocean that counts!!!

[Rosc0PColtrane]

wasn't the m42 forged from adamantium? and instead of CO2 I heard its so good for the enviroment the only things it gives off out the tailpipe are butterflies, rays of sunshine and fluffy baby bunny wabbits.

New thread in the Chuck Norris style idea forming.... Will use this to start it..... [twisted]

[schuey]

I have just sold my 325i so I can return to the IS crew! The six pots are sh1te. Anyway back on topic,the heater plate removal is a great mod,only takes 10 mins and makes a noticable difference!

[6-Shooter]

The 318iS is the best all round E30 - everyone knows who I am.