X5 4.6 into an e24 635csi

[Arthur242630]

What i actualy want to know is can it be done, what would i need to get it done? Please help otherwise i'll just be going with the 4.4. Thanks

[Neel]

Wow, that is quite the project. I would assume you would need motor mounts. as far as drivetrain goes, i think it may be feasible to use the current drivetrain, of course you may want to re-freshen it. You may want to search to see what e34 5 series owners have done. The e34 was available with an 8 cyl, so i figure that drivetrain may be better suited then what you currently have. Not to mention they may have a list of parts that they would recommend. If you need a hand sussing out the info i may be able to help you search, send me a PM.

[Arthur242630]

Thanks neel but it may be about 6 months yet before i start it. But thanks for the offer i'll pm you closer the time if thats ok?

[itsabimmerthing]

The transmission is not likely to bolt up. The bellhousing patterns will most likely be different. In addition, you will need to wire up the ecu to work in the car, and some other electricals. Anything is possible, but it will take time and money.

[Arthur242630]

I want that v8 sound. I even thought of the usual m3/5 engines and when finances allowed forced induction. But it's the v8 sound i like so i've set my heart on a v8 conversion.

[RacerJames666]

Sweet! I want to do the same to my 633, but im now thinkin about RB26DETT.....I can get skyline halfcuts for a good price, so I may as well!

[itsabimmerthing]

RB26 would be awesome james. Just remeber to upgrade the turbos, as they are quite weak. Awesome motor, world class.
As for the V8, it would be a cool swap. Keep us updated. Did you consider the M5 V8 swap?

[Arthur242630]

Itsabimmerthing I have thought about it but it's the price that has worried me off. Unless you or anyone knows of a realisticly priced.

[itsabimmerthing]

Me personally I am not sure. Although, the X5 swap should be sufficent lol. Should run great, and sound awesome.

[RacerJames666]

yeah my friend was head mechanic on automotiveforums.net r34 they were running on the world speed gt races. He brought an r32 to sitka, dumped 35k on the motor, then blew it up from insufficent oil capacity . But he does know a whole shittone about them nissans.....natural choce for me....and discount parts

[Arthur242630]

I have been looking around at other engines that might be cheaper but supply more power. The most likely would be a supra twin turbo.

[itsabimmerthing]

Modifications for a 2jzgtte are anything but cheap lol. They can make stupid power, but are not cheap. Cheap alternatives are 4g63t, sr20.....

[RacerJames666]

supercharged ford 351 cleveland Its just as sacreligous as a jap motor in a bimmer, plus I have seen that v8 fits nicely in e24...lots o room

[itsabimmerthing]

Would be cool, but I couldnt do it to a 6er. I love the 6er.
My number 2 dream bimmer is a 6er with a s50. I would love to have a kick ass setup like that. Turbo s50 in a 6 FTW!!!

[Arthur242630]

I totally agree with you both, but i have this eternal struggle thats going on, on one hand i want the beauty of a bmw v8 which has a good chunk of bhp to start with, then their is the sound that chills me to my very core. On the other hand their is the supra engine sounds good comes standard at approx 300bhp as standard and after doing research i have found out that 600bhp can be ran on standard internals with no problems even a 1000+bhp can be run, a couple of drag teams here in the uk have done that with very little problems they believe it to be the most overly engineered engine by the manufacturer ever. So do you see my dilemma?