Engine Swap Possibilities To 325i?

[Tee Koo]

I was wondering that could some of these engines fit straight (or with little work) to 325i E30 gearbox:

1. M30B30 from 730i/530i
2. M106 from 735i
3. M88/3 from M635i
4. S14B23 from M3
5. S14B25 from M3 evo3
6. S38B36 from M5

How hard it would be to make these engines fit? Electrics and mounts aren't a problem to me, but how about the fitting to the gearbox?


And thanks for the help already

 

[f1racer77]

You're better off getting the gearbox that came with those engines and then fabricating a custom drive shaft. The S14 engine might fit, but i highly doubt it.

 

[BMW-FW26]

Anything is possible with a MIG/TIG welder and a tape measure.

 

[Tee Koo]

You're better off getting the gearbox that came with those engines and then fabricating a custom drive shaft.

I want to get it fit to 325ix gearbox and keep it 4wd...

 

[epj3]

You will tear that drive train apart with much more than 220 lb-ft of torque... You could always get a custom bellhousing built, but definitely wouldn't be worth it. If you want a fast all wheel drive car, you're going to have to buy something like an audi 1.8t quattro and then do some mods (easy 300wheel hp)

 

[poboyis]

I want to get it fit to 325ix gearbox and keep it 4wd...

i thought of that once with an M3 (make it AWD), I think it would be one KILLER project. but why dont you you just rebuild and SC the M20 that is in there. lower the compression to about 8:1 and crank up the boost. give it a nice cam, bigger injectors, honed intake, MAF conversion, etc. you willl spend about the same amount of money and half the grief. Plus have the tranny and transfer case built up a bit. that would be one wicked car!

 

[epj3]

i thought of that once with an M3 (make it AWD), I think it would be one KILLER project. but why dont you you just rebuild and SC the M20 that is in there. lower the compression to about 8:1 and crank up the boost. give it a nice cam, bigger injectors, honed intake, MAF conversion, etc. you willl spend about the same amount of money and half the grief. Plus have the tranny and transfer case built up a bit. that would be one wicked car!

Makes you wonder why bmw didn't try building an AWD model to compete with audi's S4 [???1]

 

[Chesty Bonds]

Makes you wonder why bmw didn't try building an AWD model to compete with audi's S4 [???1]

They seem pretty devoted to the RWD system, which I think is a good thing. AWD does add weight and understeer to the car so I don't really see significant benefit to it apart from safety on wet/icy roads.

 

[epj3]

They seem pretty devoted to the RWD system, which I think is a good thing. AWD does add weight and understeer to the car so I don't really see significant benefit to it apart from safety on wet/icy roads.

Well in reality it's not too bad. You are correct with the weight, but in the AWD cars I've driven and pushed hard, didn't have too much oversteer (DSM, 3s, and an audi A4 2.8)

Though... i have to say...

I <3 RWD