S50 euro vs S50 US

[Iain]

How is 0.5s in the 1/4 pretty much the same? Considering a 100mph trap speed in 0.5s you move 25 yards or ~5 car length, Even 0.5s 0-60 is a 1-2 car lengths.

Do you live your life a quarter-mile at a time?

0.5secs over the 400m is not such a huge difference when the motors are so different (in price and spec). Of course, this brings up the topic of drag racing BMWs and using an axe as a hammer, etc, etc...

[e30e]

It not significant in my opinion in terms of difference is swap cost and performance.
It may be a nicer looking engine, slightly higher HP, but swap/labor of $6,000 vs $10,000 is distant. On an S50 for about $ 1,000 bucks, adding a 3.5" HFM ($100), intake ($150), upgraded exhaust ($500) and chip ($250), can bring you close to 300HP

On any given day, it can be a driver's race.

I will give you a grand if you can write a chip that gives me 60 more crank horsepower with just a hfm and cone filter, I already have an $800 exhaust ....LOL

Cranking out to 300hp N/A out of s52/s50 requires at least cam work, its not that simple just to do bolt on's to get 60 more crank hp out a the s5x's. If it is provide me a dyno graph and mod's list and I will put your name on the side of the car.

[digger]

It not significant in my opinion in terms of difference is swap cost and performance.
It may be a nicer looking engine, slightly higher HP, but swap/labor of $6,000 vs $10,000 is distant. On an S50 for about $ 1,000 bucks, adding a 3.5" HFM ($100), intake ($150), upgraded exhaust ($500) and chip ($250), can bring you close to 300HP

On any given day, it can be a driver's race.

where are all the 250+whp S50's then? Any near that number (genuinely) have atleast schrick cams

[digger]

Do you live your life a quarter-mile at a time?

0.5secs over the 400m is not such a huge difference when the motors are so different (in price and spec). Of course, this brings up the topic of drag racing BMWs and using an axe as a hammer, etc, etc...

3L, 24V, intake vanos.........not what i would call huge, its just tuning (i dont mean the chip type eiither) i thought it was quite a large difference

[triggrhaapi]

Most lightly tuned S50s are around 220whp or so. More aggressive tuning like headers, hfm, injectors will get you 225-230whp.

I'm honestly expecting around 225 or 230 from my frankenstein engine and I have head work. Cams + head work will probably get closer to 245whp. 259whp is the MOST I have ever seen from an N/A S50US and that motor was WORKED.

[nmlss2006]

Thanks - so conceivably, one could make a NV motor into a Vanos motor by installing the unit, the cammes, the valve cover ... and the electronics/harness?

[triggrhaapi]

Thanks - so conceivably, one could make a NV motor into a Vanos motor by installing the unit, the cammes, the valve cover ... and the electronics/harness?

You'd have to run some custom tuning, but yes. You also lack knock sensors, so those would have to be added. Not quite sure how you would mount them since there are no bungs to drill and tap... The custom tuning would be required to run without knock sensors.

[FredK]

Aren't there cast bosses on the NV block for the knock sensors?

I think Stu used a NV block for his stroker engine.

[nmlss2006]

Uhm. Dropping in a Vanos engine starts to look more interesting. The problem is, it's not as easy in Europe..

[triggrhaapi]

Aren't there cast bosses on the NV block for the knock sensors?

I think Stu used a NV block for his stroker engine.

As I recall there are not. Could be wrong.

If there are, then adding VANOS isn't hard. Wiring might or might not be a bitch.

[Iain]

3L, 24V, intake vanos.........not what i would call huge, its just tuning (i dont mean the chip type eiither) i thought it was quite a large difference

Hydraulic lifters vs solid, head work, different VANOS programs...??? On-paper specs appear similar, but re-read the posts in this thread outlining some of the internal differences.

[M3 euro ltw]

The new reason the S50 might make a good choice....

http://www.abloriginalparts.com/pb/w..._e87080d7.html

It is coming....

I can see the light at the end of the tunnel..

Just imagine:

You unplug the factory Siemens DME that is on your running S50B32 transplant. Then you plug in the modified DME... hide the pair of DME's. Turn the key and go.

It will be that simple. For safety sake, I'll be offering a Baro sensor option that will require cutting off the HFM plug, and re-pinning 3 of the 4 wires, assembly of the plug for that, and then plugging in the Baro sensor along with a vacuum type line to the intake plenum. This allows for ram effect to be used, and not run lean.. If you handled the transplant, you can handle adding this sensor!

Yes, it will be that simple.. hopefully to the dyno within two weeks to tune our first S50B32 with this P&P system...

hehehehehehe

Next step will be adding the Traction Control pcb which will give us 4 channels of VR to Hall conversion.... Launch control, full throttle shifting, pit lane speed limiter etc etc etc..

This will be FUN!

[619E30]

The only difference is that the s50b30 makes out 286hp, 46 more than the us motor, due to the fact that it has Individual Throttle Bodies (ITB)

[rThor432]

This will be FUN!

Especially the S54 stuff. Can't wait to see that all hammered out.

[lennon]

The only difference is that the s50b30 makes out 286hp, 46 more than the us motor, due to the fact that it has Individual Throttle Bodies (ITB)

oh thaaat's why. its the magical itbs