S54 Swap Modifications Available

[TinyT]

I think you are going to be pleasantly surprised.

The fitment is exact to stock. My jig is made out of a 36" by 10" by 1.5" thick slab of steel. The location of the factory ends never changes, as well as the steering rack. This has been verified on alignment racks. There is no change. Tolerance is a few thousandths.

The subframe is considerably stronger than the original. I use .120 wall tubing and gusset it to the stock subframe end. I weld in the motor mount doubling plates on the inside, and then box in the opening. I inspect the subframe ends for any flaws after sandblasting and repair them.

I can make the rack mounts fit the e36 m or z racks (smaller mounting height) or the standard e30 rack height. No need for spacers.

I weld on new 1/4" sway bar tabs off the front and you just flip the sway bar.

The oil pans are fully welded inside and out. This creates a very strong weld.

Unfortunately due to the construction of the pans, it does not allow me to do a simple (cost effective) bump out. So you lose about a quart of oil capacity. I have not heard of any issues with this.

The pan and subframe fit about the same as the s54 does. Plenty of clearance to one another. I mock each one up on an engine before it leaves the door.

I only have a picture of the pan, I cant locate one in the mock up stage.

[VinniE30]

I have done several of those already! I do them the same as the s54 mods, just extend the pickup a bit to clear the notch.

Thanks for the post Ham!

I used to have a thread about that but I'm not sure where it went. Any opinions on where to promote the S/M 50/52 mods?

Post it in the m50/52 s50/52 forum. I think you could get a ton more business if you promoted this more. I just realized that it's in your sig but I never saw a thread for it or anything. I'm sure many people would be interested in it, especially because of how many people are breaking e34 oil pans. We could probably even get enough for a group buy. I have some questions about it though.
How does the weight and strength compare to the stock subframe?
If the fitment is even very slightly off it would have a big affect on suspension geometry with the steering rack and control arms, how close is the fitment to stock - to the centimeter, to the millimeter?
What do you do to the e36 oil pan? Any pics of it? How close does the pan come to your subframe, and how close to the sway bar? Any other issues?
Thanks.

[TinyT]

It will be ready no later than March 1. Finally getting caught up with other projects.

[E30Strube]

Any further work on the header?

[TinyT]

I used to have a thread about that but I'm not sure where it went. Any opinions on where to promote the S/M 50/52 mods?

[TinyT]

I have done several of those already! I do them the same as the s54 mods, just extend the pickup a bit to clear the notch.

Thanks for the post Ham!

[VinniE30]

Can this work with an M52/S52 with its stock e36 oil pan in an e30?
Wondering because it would allow you to use the stock pan that it already on the engine without having to buy an expensive e34 pan and do the necessary modifications for it. More importantly it would result in much less risk of cracking the oil pan since the lowest point would be located much farther back. Not sure about track performance and oil pickup ability on long turns but I would assume the e36 pan would be superior to the e34 pan.

[Thing30]

Great Product! Thanks Tyler :)

Btw, I have a extra subframe for anyone interested in doing this so you don't have to drop yours to get modified.

Ham

[nebulous123]

i am interested but was waiting to find out what the pricing was with the exhaust. and if a package deal would be provided with that. what are you thinking for subframe and oil pan mod prices?

[TinyT]

Hey guys, anyone getting ready for spring and need some modifications? Based on how much interest there is I can put together some packages and better pricing!

[nando]

yeah, but the point of this whole subframe mod thread is you don't have to use the low-hanging single-sump pan and M50 oil pump. I'd think that would apply to the E34 but the custom subframe doesn't exist.

[jrods]

For an E34 you would use the standard E34 24V oil pan.

to clarify your statement the m50 oil pan bolts rite up to the s54 block.

thanks

[Wishno87]

I've been thinking on an s54 swap on my e34 535i. What would be some

of the obstacle i may encouter on this swap with the oil pan? and what do you recomend to use for oil pan mod if any?

thanks

For an E34 you would use the standard E34 24V oil pan.

[jrods]

Who is planning on doing this and looking forward to some winter specials?

I've been thinking on an s54 swap on my e34 535i. What would be some

of the obstacle i may encouter on this swap with the oil pan? and what do you recomend to use for oil pan mod if any?

thanks

[89AlpineM3]

Im ready, just got my S54