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  #1  
Old July 28th, 2014, 04:33 PM
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RRC LWB 2.8i

Hello! I've ventured over here to watch the continuation of the 3.0 swap by Chip. Figured I'd intro myself and my truck. Hopefully the non-Defender but kind of relevant content (M52) will be cool here.

1993 RRC LWB with a BMW M52B28 on OBD1 transplanted in.

Bought it from a friend who did the transplant. Basically it's the Rover's 4hp22 with the bell housing, torque converter, and flex plate from an e30 325i. Running on OBD1 for that extra OOMPH, but kept the long runner intake mani to try to retain some torque.

Day I bought it:



Cleaned up the engine bay. Ditched that wonky PS pump setup.



It's a dog. Underpowered. Slow. Loud.

...and then I ruined it.



Borg Warner TC popped last winter, so I tossed in an LT230. Sitting on OME Med duties with 1" spacers. 33" Dunlop Mud Rovers. Have a ~2" body lift waiting for me to put on.

Anywho, here she is. Here I am.
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  #2  
Old July 28th, 2014, 04:51 PM
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Awesome!
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  #3  
Old July 28th, 2014, 06:41 PM
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I remember seeing this on Craigslist. I gave a low ball offer and got no response. I just wanted to buy it to see how it was done and also to see if the V12 could fit.
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  #4  
Old July 30th, 2014, 07:47 PM
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Nice!
Rounded on the grill is a nice touch
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  #5  
Old August 1st, 2014, 09:57 AM
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V12 would fit. Actually thought about doing it (friend has 3 of those M70s), but honestly didn't want to go through the trouble.

I'm stuck between A) Slapping an Eaton M62 on this engine, B ) Swapping in an M30B35 with an Eaton M90, or C) Building the S52 block I have and running the M52 head (same head, just less aggressive cams), see how it does and possibly toss an Eaton M62/90 on it.

The M52 is such a good motor.....for a car. Really it needs to rev to get anywhere. Thought about swapping valve bodies in the TC but IDK what I'd want to put in it. Rover TDI? BMW?

I do like the idea that they used the M52 in the Defender for a brief time. Came here somewhat trying to find more info on those trucks, but they are few and far between. Somehow the custom mounts for my engine look almost identical to the Defender 2.8 mounts.
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Old August 1st, 2014, 12:29 PM
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Quote:
Originally Posted by slammin_LWB View Post
V12 would fit. Actually thought about doing it (friend has 3 of those M70s), but honestly didn't want to go through the trouble. I'm stuck between A) Slapping an Eaton M62 on this engine, B ) Swapping in an M30B35 with an Eaton M90, or C) Building the S52 block I have and running the M52 head (same head, just less aggressive cams), see how it does and possibly toss an Eaton M62/90 on it. The M52 is such a good motor.....for a car. Really it needs to rev to get anywhere. Thought about swapping valve bodies in the TC but IDK what I'd want to put in it. Rover TDI? BMW? I do like the idea that they used the M52 in the Defender for a brief time. Came here somewhat trying to find more info on those trucks, but they are few and far between. Somehow the custom mounts for my engine look almost identical to the Defender 2.8 mounts.
Chip is in the process of putting in a m54... Very different engine.... Lots of low end torque...and high end torque... Look it up its in the truck buildup.thread I beleive
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Old August 1st, 2014, 12:29 PM
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Cool build. Sorry the BMW isn't working like you wanted but really neat to see it in a RRC. Thanks for sharing.
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  #8  
Old August 1st, 2014, 12:30 PM
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Quote:
Originally Posted by Arcadeus View Post
Chip is in the process of putting in a m54... Very different engine.... Lots of low end torque...and high end torque... Look it up its in the truck buildup.thread I beleive
Yeah, actually followed him over here from the BMW forum. Def want to see it finished.
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  #9  
Old August 4th, 2014, 07:22 PM
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Quote:
Originally Posted by slammin_LWB View Post
V12 would fit. Actually thought about doing it (friend has 3 of those M70s), but honestly didn't want to go through the trouble.

I'm stuck between A) Slapping an Eaton M62 on this engine, B ) Swapping in an M30B35 with an Eaton M90, or C) Building the S52 block I have and running the M52 head (same head, just less aggressive cams), see how it does and possibly toss an Eaton M62/90 on it.

The M52 is such a good motor.....for a car. Really it needs to rev to get anywhere. Thought about swapping valve bodies in the TC but IDK what I'd want to put in it. Rover TDI? BMW?

I do like the idea that they used the M52 in the Defender for a brief time. Came here somewhat trying to find more info on those trucks, but they are few and far between. Somehow the custom mounts for my engine look almost identical to the Defender 2.8 mounts.
I guess you're using the BMW converter, whats the stall speed? Maybe the gear ratios of the BMW transmission is different than the LR gearing...

Still using stock 3.54 gearing in the diffs?

Might want to look into a 1.6 or 1.4 LT230, cheaper than regearing the differentials.
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  #10  
Old August 5th, 2014, 10:42 AM
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Quote:
Originally Posted by crown14 View Post
I guess you're using the BMW converter, whats the stall speed? Maybe the gear ratios of the BMW transmission is different than the LR gearing...

Still using stock 3.54 gearing in the diffs?

Might want to look into a 1.6 or 1.4 LT230, cheaper than regearing the differentials.

Honestly IDK the stall speed of the torque converter. It is using one from a ~1989 325i.

I am still using the stock 3.54 gearing in the diffs.

The LT was what I had on had. Actually looked into it and seems I'd want almost a 5:1 gearing in the diffs to get me in a nice spot.

However, I'll be working on putting a M30B35 (207hp/225tq) the truck soon enough. M52 is rated at 190hp/210tw, but I probably have a little more due to running it on OBD1, how much is the unknown. Still shy of the 255tq the 4.2 had, but M30s are so easy to get more power from.

So I'll do that before I regear, just to see how it is. I'd rather increase power than get into gearing.
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  #11  
Old August 5th, 2014, 12:11 PM
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Nice! More 24V Rover action!!
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  #12  
Old August 5th, 2014, 01:33 PM
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Originally Posted by slammin_LWB View Post
I'd rather increase power than get into gearing.
Really?

17 horses and 15 foot pounds may be a dramatic butt-dyno increase in an E36 but trust me, its not worth the bother in an RRC.

4.75 gearsets aren't as common as 4.11/4.14 but they are out there.

1.4/1.6 transfer cases are becoming available as they get swapped out of ROW trucks that want 1.2 boxes.
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  #13  
Old October 14th, 2014, 09:33 AM
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Well....solved my torque problem.



This little puppy is a M70 V12. 300hp, 350tq.....and up to 400hp with software....and it'll literally bolt up to the trans with a bellhousing from a 750iL.

Got a P38 steering box since it hangs outside the frame. Also some 28mm DOM to make a drag link since one end will need RRC tie rod end and the other P38.
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  #14  
Old October 14th, 2014, 09:38 AM
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Ha! That might do it!
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  #15  
Old October 14th, 2014, 09:43 AM
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Oh yeah. Found an article where BMW/Rover put one in a P38....but then BMW sold Rover to Ford, so it never materialized.

It's really a small engine. As long as a 6cly, and not as wide (60 degrees) as the DOHC V8 (90 degrees).
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Old October 14th, 2014, 11:37 AM
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This is what I've been waiting for someone to do.
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  #17  
Old November 19th, 2014, 09:43 PM
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Quote:
Originally Posted by slammin_LWB View Post
Oh yeah. Found an article where BMW/Rover put one in a P38....but then BMW sold Rover to Ford, so it never materialized.

It's really a small engine. As long as a 6cly, and not as wide (60 degrees) as the DOHC V8 (90 degrees).
That's interesting. I've never heard that before so I had to look it up.

I think it's probably a fake story perpetuated by Autocar. The P38 says 2.5 DSE on the back. I very much doubt Land Rover would have added that badge to a V12 prototype. I think it's just a swap someone did to a truck that originally had the M51 diesel in it, as per the badge. Also, their timeline doesn't add up. They say it's a 1999 prototype. But according to rangerovers.net, Wolfgang Reitzle, who allegedly came up with the V12 P38, only joined Rover group from BMW in 1995 after the P38 was already being sold and he left in 1997 (to go back to BMW). Also, the L322 Range Rover was already being developed in 1996 and completed in 1999 so I doubt Reitzle would have turned enough attention away from that to develop a new model of the old P38 they were planning to replace. Also, keep in mind Ford bought Land Rover in 2000 so that wouldn't have affected the outcome of this alleged project. It's an interesting swap though even if the story is bogus.
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  #18  
Old July 27th, 2015, 02:46 PM
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So, it's been a while and I've grown wiser....and more stupider.

My RRC is mucho rusty in the body, inner wings are practically gone, as are the front door sills and footwells. Frame is fine, excellent if you will. All poly bushings, OME springs, Bilstein shocks, etc.

I sold the M52 out of it to Sarek in Richmond who is running it in a RRC with a M3 3.2 bottom end.

So, I'm going to look at a 3 door 109 Series III with a bad frame to toss onto my RRC frame....and build it around the M70 powerplant.

Opinions?
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  #19  
Old July 27th, 2015, 02:52 PM
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Have fun with that! Lotsa weekends mashing steel in your future
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  #20  
Old July 27th, 2015, 02:55 PM
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Have fun with that! Lotsa weekends mashing steel in your future
Yeah, I'm about done with my v8 e30, and need to get this v12 in something by Spring. Project season is upon us (Fall-Winter)
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