Tuning tips for BMW E30 325i anyone???

2,7 conversion gives you 200 brake , camshaft, zaust,filter, chip, noz , twin turbo, m5 engine , new m3 engine , etc etc etc !

 how much do u wanna spend ?

Madrab wrote: Another good one would be - http://www.bmwe30.net/ Quick gains would be (cheapest first) an induction kit with a cold air ram box, new ecu chip, free flow exhaust, camshaft, engine swap. All depends on how much you want to spend and how much of a power gain you want. Other way of changing performance to get close to the E30 M3 straighline specs (as a baseline) is simply with a Diff swap (4.1 ratio for the 3.73 you would have) which gives you better acceleration but lower top end. Done this to mine. This coupled with other engine mods could get you close to or exceed E30 M3 performance. Rob

Whoa you fitted a 4.1!! that thing must be undriveable! 

3.91 is about as low as i'd want to go.  The 3.73 in mine feels to low as it is.

As mentioned above search through the forum on past topics, its been raised so many times.

I don't wanna swap the engine as 2.5 is big enough for me at the moment what I would like to do is fit a "rally style" cam to give it more power low end.

I wanna use it on autotests and the like so low end grunt is the kiddie.

Chipping is it worth it not sure how much this would help. I have £1000 to burn on performance only but I want to get value for me wonga. To be honest I don't even know the stats for a 1986 M20 standard engine/setup.

Also fancy doing some tarty things like fitting the later E30 bumpers not sure how hard the are to fit to mine (it's has the chrome ones at the mo)?

All this input is great keep it coming!

Cheers

Simon  

Cheers Nick

Autotests are me starting block for it then Autocrosses and then with a bit of work single stage rallying hence perfomance tweeks early on to make sure I don't blow it up ;)

for autotesting you wont need to do any performance mods at all .

 you will NEED a LSD and a non ratchet handbrake . a few sets of cheap tyres are a must  and will help if you strip the car out .

 a fiend of mine duz it in a caterham  with a 1600 xflow fitted . (110 bhp) so ur 160 brake 2.5 lump  will be more than adequate. 

 when u get into it u,l find people using novas escorts and allsorts of strange cars .  u will be at a disadvantage simply because the car u want to use is larger and heavier  than  ideal ...

no worries dude . im sure u,l have a right larf , 

 have u thought about a dash mounted upright handbrake lever ? 

im not aware of any "rally cams" for the 325 , but i think most will agree that schrick make the best aftermarket cams off the shelf !

 if u wanna go silly u could allways get someone to profile a cam for you but i dont know if u would gain anything by doin it that way ?

DC mine is Just a 325i (not sport) does it had an LSD in it as standard or am I gonna have to source one from somewhere?

Where can you get schrick cams from in the UK. Can't find anywhere online who list them but lots who have fitted them...

PS The E30's with the non chrome bumper will they fit on me exisiting chromed bumper brackets or is there some mod work to do? I need to replace much of the front end body work so if I need to fit the later style wings I can.

Look forward to your input.

stappin