Engine tuneability
Discussion
There was a supercharger kit from a company called Downing Atlanta, but now discontinued, and sought after.
basically you are left with air filters and an exhaust for a bit of fun, and a remap which is notoriously tricky to carry out.
Cams are about, but still pretty expensive.
The best fun would be in suspension stuff i guess. 318iSs are raced in Class D of the Kumho championship, so it's not far off a budget race car for the road
basically you are left with air filters and an exhaust for a bit of fun, and a remap which is notoriously tricky to carry out.
Cams are about, but still pretty expensive.
The best fun would be in suspension stuff i guess. 318iSs are raced in Class D of the Kumho championship, so it's not far off a budget race car for the road
I saw a turbo on ebay (from Canada) but wonder if the left/right-hand drive thing would cause any probs. It's a grand too.
Have been offered a cheap 318ti and was wondering about the options available on it for my son to play tarmac warrior in - trackdays, possibly going on to something budget competitive.
Have been offered a cheap 318ti and was wondering about the options available on it for my son to play tarmac warrior in - trackdays, possibly going on to something budget competitive.
The turbo kits are a cheap or reconned turbo, and a manifold in most cases. the rest of the work all needs to be done which ends up costing a fortune.
coming as a "kit" looks great, but in reality all you get specific is an exhaust manifold with a flange on it, and considering the amount of other pipework you'll have to do, it's only one small step in the right direction.
coming as a "kit" looks great, but in reality all you get specific is an exhaust manifold with a flange on it, and considering the amount of other pipework you'll have to do, it's only one small step in the right direction.
Right. I bought an E36 323i coupe instead.
Browsing wikipedia, it suggests that the 2.5 unit (1995-1998) produces 168bhp and an 8.0 sec 0-60. (M52B25)
But the same capacity engine previously (1991-1993) produced 189bhp, though the same 0-60 time
(M50B25)
Does that mean there's 20bhp 'lurking' in this unit? And if there is, can I have it please
and can it be used to reduce the acceleration time?
Browsing wikipedia, it suggests that the 2.5 unit (1995-1998) produces 168bhp and an 8.0 sec 0-60. (M52B25)
But the same capacity engine previously (1991-1993) produced 189bhp, though the same 0-60 time
(M50B25)Does that mean there's 20bhp 'lurking' in this unit? And if there is, can I have it please
and can it be used to reduce the acceleration time?It'll have most of the torque and power of the 325 up until 4500-ish rpms, when the intake manifold becomes more restrictive and stops the party.
The fix would be to get a 325 intake manifold (be careful, as the smaller 320 manifold is very similar) and fit that.
You'll need to do a bit of modding, there's a hole or 2 underneath that needs blanking off, and then you add on a plate taken from your 323 manifold that has all the 323 fittings attached.
Bob will then become your uncle, and the job is a good 'un.
The clever reason behind this was you have an apparent 2.3 litre car with the torque of a 2.5
BMW have been doing this for quite a while now, 118d 120d and 123d all have a 2.0 engine for example.
The fix would be to get a 325 intake manifold (be careful, as the smaller 320 manifold is very similar) and fit that.
You'll need to do a bit of modding, there's a hole or 2 underneath that needs blanking off, and then you add on a plate taken from your 323 manifold that has all the 323 fittings attached.
Bob will then become your uncle, and the job is a good 'un.
The clever reason behind this was you have an apparent 2.3 litre car with the torque of a 2.5
BMW have been doing this for quite a while now, 118d 120d and 123d all have a 2.0 engine for example.
So why, when it was sold as a 325i was it not quicker to 60, in spite of having an extra 20bhp? Or is that an ECU issue?
ETA: Found this bag 'o bits to do the conversion.
Just need to find a manifold too now
ETA: Found this bag 'o bits to do the conversion.
Just need to find a manifold too now
Edited by V8mate on Saturday 26th June 15:34
i knew there would be a guide somewhere
http://www.bimmerforums.co.uk/forum/f3/m50-manifol...
have a read through that, and see what you think.
as for 0-60s, the times quoted on the net are all over the place, wikipedia says 8.0 for 323 and 325 saloons, but the coupe in the list below is quoted at 7.3s vs 8.0 for the 323 again.
http://www.bimmerforums.co.uk/forum/f3/m50-manifol...
have a read through that, and see what you think.
as for 0-60s, the times quoted on the net are all over the place, wikipedia says 8.0 for 323 and 325 saloons, but the coupe in the list below is quoted at 7.3s vs 8.0 for the 323 again.
TheEnd said:
i knew there would be a guide somewhere
http://www.bimmerforums.co.uk/forum/f3/m50-manifol...
have a read through that, and see what you think.
I'm think I'm going to have to hand the car over to a bloke who knows what he's doing! http://www.bimmerforums.co.uk/forum/f3/m50-manifol...
have a read through that, and see what you think.
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