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hot 520i
09-02-2007, 01:46 AM
i want to get more power out of my 520i but dont want to put to much work into it. what is the best thing to do?? im putting a high flow exhaust system onto it.

94_e34_525i
09-02-2007, 02:05 AM
When you find more power, without much work please tell us. Besides that, a chip, headers, bigger throttle body, cams, injectors, if your feeling adventurous turbo the bastard.

Ferret
09-02-2007, 02:22 AM
When you find more power, without much work please tell us. Besides that, a chip, headers, bigger throttle body, cams, injectors, if your feeling adventurous turbo the bastard.

Interesting,

I think the 520i would be a good car to turbo, the head is like 100% thicker in most places than the 525i engine and should stand up to a lot more abuse...

Jon K
09-02-2007, 05:43 AM
Head thickness is very rarely the failure point on any of these engines. I dunno unless you go all out a 2.0L turbo isn't at all worth it in a 3600 lb car.

E34-520iSE
09-02-2007, 04:04 PM
get a dyno run before and after the new exhaust - just in case you get a power DROP.

HTH,

Shaun M

hot 520i
09-03-2007, 02:47 AM
i will do and i will let you know after

BMW525i E34
09-06-2007, 03:59 AM
Put the 2.5i 24v engine inside. That is I think best horse power buy... :)

E34-520iSE
09-06-2007, 04:31 AM
Put the 2.5i 24v engine inside. That is I think best horse power buy... :)

Too right - cheap to buy, easy to obtain and it can be done in a day!

Cheers,

Shaun M

Morgenster
09-06-2007, 08:14 AM
Too right - cheap to buy, easy to obtain and it can be done in a day!

Cheers,

Shaun M

That's where I'm thinking of going if my current engine ever needs a rebuild. There's supposed to be plenty of them around. M52B28 would also be nice but I suspect these wouldn't hook up properly.

bones
09-06-2007, 06:27 PM
i want to get more power out of my 520i but dont want to put to much work into it. what is the best thing to do?? im putting a high flow exhaust system onto it.
i promise you there will be little to no real power to the ground difference with a exhaust mod.exhaust is simply part of a lengthy process to get some mid range but predominantly top end pull,not really power that you will notice in the mid range usable range where the M-20 is horribly underpowered.sell your M-20 car and go to the bank and get more money and buy a big displacement bmw.this is the cheapest method of making a bmw go fast reliably. bones

pundit
09-09-2007, 04:55 PM
i promise you there will be little to no real power to the ground difference with a exhaust mod.exhaust is simply part of a lengthy process to get some mid range but predominantly top end pull,not really power that you will notice in the mid range usable range where the M-20 is horribly underpowered.sell your M-20 car and go to the bank and get more money and buy a big displacement bmw.this is the cheapest method of making a bmw go fast reliably. bones
Yeah... what he said!