Project: Lets confuse the hell out of everybody.

[Sagaris]

I have a lot to figure out yet but I thought I would give you a peek at what I will spend my free time working on.

Everything fits well in the pessimistically sized envelope I started with which means it is worth my time to take more measurements and create a more detailed engine bay. ( notched out area is clearance for brake booster and steering linkage)






This is certainly a long-term project as there are a LOT of things left to design and figure out as well as having job, family, and other business to tend to, but I can justify the cost and labor involved in this type of swap much more easily than an S50/S52 swap.

So, sometime in the future I hope to be piloting a stock looking E30 on bottlecaps that sounds like an F1 car; something that will be sure to confuse the hell out of everybody on the road.

Hopeful recipient:

[Click]

Dafuq is going on here?

[e30jake]

Do it. And name car Mr. Snuffleupagus

[Keith M]

Very interesting. The biggest problem, or I guess one of many, is how you will deal with vibration issues. It's going to take a hell of a balancing system in order for it to work. Huge props for trying something different.

[unevolved]

Dude. I wanna see this happen. Let me know if you need any help.

[canakami]

Ho snap...

[Sagaris]

Very interesting. The biggest problem, or I guess one of many, is how you will deal with vibration issues. It's going to take a hell of a balancing system in order for it to work. Huge props for trying something different.

The idea at the moment is to connect the engines with a dual roller chain drive and sprocket at the existing sprocket output location on the engines. The engines would be solidly mounted to an aluminum framework which would be mounted to the original E30 subframe with rubber isolators.

Horizontal dampers connecting to the cylinder heads would likely be helpful in reducing vibrations due to both engines generating torque in opposite directions. FEA analysis would play a role in determining whether the framework needs to be constructed of steel to avoid fatigue.

[YosemiteSam]

I think I see what's going on in here, and if I do I am impressed.

[Sagaris]

Dude. I wanna see this happen. Let me know if you need any help.

The gesture is appreciated. If you have any 3D modeling skills, electrical engineering, or mechanical engineering experience then you could certainly be of help.

I am a mechanical engineer but will likely consult with some electrical guys on the charging system (if/when the project becomes a reality)

[Sagaris]

I think I see what's going on in here, and if I do I am impressed.

Yes, less weight than an M20, 2x the power output, and likely an absolute symphony of induction sound when coupled with a carbon fiber plenum.

In a perfect world I would be using S1000rr engine to keep it BMW (and also because those are amazing engines) but the pricing and availability is much more favorable for the Yamaha and Suzuki engines. Example: a few months ago when the idea popped in my head I browsed Craigslist for used bike engines. a 12000 mile R1 engine with harness, and ECU was $1000, and a 16000 mile engine with no ECU/harness was $800.


Assuming this project is completed with a pair of R1 engines, I would eventually want to step up to a pair of S1000rr engines.

[F34R]

I want to see this happen...badly!

[unevolved]

The gesture is appreciated. If you have any 3D modeling skills, electrical engineering, or mechanical engineering experience then you could certainly be of help.

I am a mechanical engineer but will likely consult with some electrical guys on the charging system (if/when the project becomes a reality)

Yeah, I'm an engineer too, I do a lot of 3D modeling and design-for-manufacturing stuff (design engineer for a manufacturing firm). I do a lot of stuff with laser cutting (flat and tube) so if you want to get real serious, let me know.

I'd definitely say you'll want a steel subframe, an aluminum subframe will almost certainly crack.

[E-Thirty]

Kinda curious as to how you'll implement the cooling system.

What about just putting in a modded zx-14r engine in there for the sake of sound? :p

[CrusherCurtis]

R1 engine is a rocket! Isn't 16k miles kinda high for something like this tho?

[lambo]

What are you planning transmission wise?