New Built S65 Engines (4.1L and 4.5L) from CarBahn Autoworks

[bimmer456]

I would like to see a tuned 4.4 l turbo motor. Curious as to how much gains can be had with piggy back and flash tunes alone. 4.0 liter NA is somewhat limited unless you increase bore and stroke and add physical turbos.

[CarBahn Autoworks]

Originally Posted by Brake_Late

OP - This is / you are Dinan correct ?

Steve Dinan is the owner of CarBahn, but he sold Dinan Cars in 2013.

[Brake_Late]

Originally Posted by CarBahn Autoworks

Steve Dinan is the owner of CarBahn, but he sold Dinan Cars in 2013.

[sharocks]

Came here looking for torque.

404 not found.

[CarBahn Autoworks]

Originally Posted by sharocks

Came here looking for torque.

404 not found.

We don't have HP/TQ figures to provide for these two builds in particular, because we're offering a forced induction capable build, but the actual turbo/SC application choice is left open to the owner.

[GORDON.M3]

Originally Posted by CarBahn Autoworks

Steve Dinan is the owner of CarBahn, but he sold Dinan Cars in 2013.

Why did he sell Dinan?

[adc]

Y’all are crazy IMO.

A $50-60k track build on top of a $30k M3 makes no sense to me, so more power to you guys (pun intended). Unless you go widebody can you even put enough rubber on it?

Jeez, I’d just pile all that money up as down payment on a GT3 stickshift, and happily drive that for 4-5 years...

[VMRWheels]

Originally Posted by TTony

If you haven't done RB yet, do this instead and then it's equivalent to a $2,100 discount. Car mod math.

I like the way you think!

[b-thumper]

Originally Posted by NYAWE60

I know I'm going to catch heat for this. But if you've owned/own a V8 S65 M3, then you know it's the best engine ever put into an M3. Period. The S55 is good and has strong aftermarket support but an S65 when supercharged or stroked is an absolute beast with way more character. Let's not even get into exhaust sound. That's a no contest.

Sorry, S54 for life!

[CanAutM3]

Originally Posted by jcolley

If you want to see something fascinating in this video, watch the throttle actuator linkages to the ITBs moving rapidly during the ramp run.

People underestimate how much is going on in the control arrangement for butterfly position. (Assuming this is running on an mss65).

I think you might be overthinking it. IMO, the throttle actuator movement is mostly related to the synchronization between engine and dyno governing.

[jcolley]

Originally Posted by CanAutM3

I think you might be overthinking it. IMO, the throttle actuator movement is mostly related to the synchronization between engine and dyno governing.

Having disassembled around 80% of the mss60 and mss65 binaries, I doubt it.

And CarBahn can correct me if I'm wrong, but I've never seen a Superflow SF-902 with a feedback loop between the brake and the the throttle control and I doubt if the SF-Powermark used in the video does either. The brake is set to allow a ramp run or steady state load and full throttle pedal is applied for a ramp run to occur.

[DetroitP]

Carbahn, Any way you can share some of these technical specifications of your engines? thanks!

Originally Posted by DetroitP

Curious if you guys can provide some specs on these engines;
1) Rod/stroke ratio
2) Cylinder-to-cylinder wall thickness
3) Any o-rings needed?
4) What tuning capabilities are provided with the engine (if any), software...etc?
5) Piston speed comparison for the stock vs different derivatives of the engines.
6) How much boost is considered safe for each build?
7) Warranty?

I looked thru the website, but couldn't find this information, so if I missed something, pls reference it.

Thanks for the info!

[///M TOWN.]

Originally Posted by jcolley

Given they have the experience to work with Alusil properly, the same as a new engine from BMW.

Given they also probably know how to set a bearing clearance properly, probably double service life of a new S65 from the factory.

How about much better then factory.

Strength built for the long-hall.

[Fritzer]

Am I the only one here who just wants a naturally aspirated, stroker S65?

[TomHudson]

Nope, I don’t want one.....any more!

[nycplumber]

Originally Posted by Fritzer

Am I the only one here who just wants a naturally aspirated, stroker S65?

450rwhp with 9000 rpm red line. Done.

[4everkidd]

Originally Posted by Fritzer

Am I the only one here who just wants a naturally aspirated, stroker S65?

So you can make even less torque?

I can appreciate the builds here but fiscally I just don't get it.

[Dave07997S]

Originally Posted by nycplumber

450rwhp with 9000 rpm red line. Done.

Malek almost got that with his 4.2L screamer.

[ilikebmxbikes]

Originally Posted by Fritzer

Am I the only one here who just wants a naturally aspirated, stroker S65?

You are not alone

[ilikebmxbikes]

Originally Posted by 4everkidd

So you can make even less torque?

I can appreciate the builds here but fiscally I just don't get it.

Less torque than what? A stock car - no. A supercharged car - yes.

The s65 is a glorious motor out of the box and stroker s65 only strengthen the merits Bmw prioritized while designing the motor.

[TomHudson]

Originally Posted by 4everkidd

So you can make even less torque?

I can appreciate the builds here but fiscally I just don't get it.

What’s not to get?

If you want a durable performing superchared car, the engine should be prepped for boost.

A car that is being sold with the blower removed, is sold as buyer beware. Nobody wants an S65 that’s been beaten to death and this is very rarely disclosed.

Fiscally, sure. Buy a used car, buy a usd blower. Slap it on and have fun, I get it.

[bigjae1976]

Originally Posted by Fritzer

450rwhp with 9000 rpm red line. Done.

Wonder what the DCT can spin up to. I saw a Zed-F video that says 9000 RPM.

I know...just get a manual but I love the DCT!