325 or 535?

Discuss general engine, turbo and supercharger conversions in this section

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swindy
E30 Zone Regular
E30 Zone Regular
Posts: 574
Joined: Fri Feb 11, 2005 11:00 pm
Location: Lancashire

Sat Oct 01, 2005 11:32 pm

Righty, pros and cons? If I do it I will buying a complete doner car, I already know the 325 engine will fit straight in no hassle, need ecu, oil cooler and manifolds, but thats why you buy the doner car innit? I know the 3.5 has 3 positions and needs engine mounts, and maybe a prop?

So how mush more power and is it really worth it to push in a 3.5 out of a 5 series? I sort of already leaning towards the 325, I have a good mechanical background, VW and Audi 3 yrs, back street garage 1 year and helping my dad with ahem friends cars since I was able to pump a brake pedal.

The conversion isnt imminant, just want to start gathering knowledge and figures so I can start looking. Serious planning going into this.

Regards Mark.
"We aint here for a long time, we're here for a good time."

"Don't take life too seriously, you'll never get out alive."
Toby_Unna
Boost Junkie
Posts: 2183
Joined: Mon Jan 10, 2005 11:00 pm
Location: Sheffield

Sat Oct 01, 2005 11:50 pm

assuming you mean m20 2.5, it'll go in in days if you get mates to help and shouldn't cost much more than what the donor car costs, which shouldn't be much.

whereas the 3.5 will take a long time and a fair bit of work/custom fabrication, and a lot more money.

the gain is around 50bhp/60lbft for a small weight increase
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