Show Me Your BMW!!!!!!!!!
Discussion
RoverP6B said:
Hmm, how does the blower affect the throttle response? Additional powertrain inertia, frictional losses etc... about the last thing any S54-powered car needs is more power!
Having been taken for a spin last summer in a supercharged CSL I can confirm it was a pretty eye-opening experience! The replacement of induction roar with massive charger whine was a bit weird too, although it wouldn't be for me on the whole
Leins said:
Having been taken for a spin last summer in a supercharged CSL I can confirm it was a pretty eye-opening experience! The replacement of induction roar with massive charger whine was a bit weird too, although it wouldn't be for me on the whole
i wouldn't go this route on a CSL.... but for the z4m it seemed like a great way to jump into major league performance. that s54 sound overlaid with blower noise sounds to me, incredible. In-fact if you go to page one of this very thread you'll see this car from when i first purchased it with around 900 miles on the clock :-) ^^^ I'd miss my induction noise too much! 
But I agree it turns what is already a fast car into something very rapid. Can't remember what the rolling road numbers were for the one I was in, but from memory the BHP figure began with a '5'. I'd been in cars with this guy before, in stuff like Ferrari 612s, but the charged CSL seemed, from the passenger seat at least, to be on a different level. I suspect your Z4M is "quite nippy" too!
But I agree it turns what is already a fast car into something very rapid. Can't remember what the rolling road numbers were for the one I was in, but from memory the BHP figure began with a '5'. I'd been in cars with this guy before, in stuff like Ferrari 612s, but the charged CSL seemed, from the passenger seat at least, to be on a different level. I suspect your Z4M is "quite nippy" too!
^^^ There probably was some induction noise going on, it's just that I couldn't hear it over the supercharger screaming like a banshee. Perhaps there is a supercharger set-up that allows the car's carbon airbox to be retained?
Must have a proper look at threads on the "Loaded" CSL that did the 7:22 'Ring time and see what the installation there was. Only out of interest mind, as no intention of doing it myself, I have an E34 that keeps a close check on my finances!
Must have a proper look at threads on the "Loaded" CSL that did the 7:22 'Ring time and see what the installation there was. Only out of interest mind, as no intention of doing it myself, I have an E34 that keeps a close check on my finances!
RoverP6B said:
No induction noise and anywhere near full power is simply dangerous? That's pretty much convinced me it's not such a smart idea... it used to be that anything over 100bhp/ton was a quick car!
luckily it wasn't you that needed convincing :-) compared the the stock s54, the induction noise is unchanged, maybe even a little louder, compared to a CSL setup to would be quieter , in terms of the power, slightly overkill but the way the power is delivered makes it so much fun but performance is definitely in the major league now, care must be taken, but then doesn't that go with any decently power rear driver?
For ME, its made an awesome car even better, team that will a pristine car that I've owned pretty much all its life, to me, its irreplaceable :-)
thank for all the comments and views peeps.... always appreciated :-)
Beedub said:
luckily it wasn't you that needed convincing :-)
compared the the stock s54, the induction noise is unchanged, maybe even a little louder, compared to a CSL setup to would be quieter , in terms of the power, slightly overkill but the way the power is delivered makes it so much fun but performance is definitely in the major league now, care must be taken, but then doesn't that go with any decently power rear driver?
For ME, its made an awesome car even better, team that will a pristine car that I've owned pretty much all its life, to me, its irreplaceable :-)
thank for all the comments and views peeps.... always appreciated :-)
So nice to have someone cherish their car so much. Top work sir. compared the the stock s54, the induction noise is unchanged, maybe even a little louder, compared to a CSL setup to would be quieter , in terms of the power, slightly overkill but the way the power is delivered makes it so much fun but performance is definitely in the major league now, care must be taken, but then doesn't that go with any decently power rear driver?
For ME, its made an awesome car even better, team that will a pristine car that I've owned pretty much all its life, to me, its irreplaceable :-)
thank for all the comments and views peeps.... always appreciated :-)
Beedub said:
luckily it wasn't you that needed convincing :-)
compared the the stock s54, the induction noise is unchanged, maybe even a little louder, compared to a CSL setup to would be quieter , in terms of the power, slightly overkill but the way the power is delivered makes it so much fun but performance is definitely in the major league now, care must be taken, but then doesn't that go with any decently power rear driver?
For ME, its made an awesome car even better, team that will a pristine car that I've owned pretty much all its life, to me, its irreplaceable :-)
thank for all the comments and views peeps.... always appreciated :-)
Oh, of course! I've just been mulling a possible S54 swap into my E39 and whether to s/c it... I understand you can also stroke 'em out to 3.5 litres which helps on the torque front...compared the the stock s54, the induction noise is unchanged, maybe even a little louder, compared to a CSL setup to would be quieter , in terms of the power, slightly overkill but the way the power is delivered makes it so much fun but performance is definitely in the major league now, care must be taken, but then doesn't that go with any decently power rear driver?
For ME, its made an awesome car even better, team that will a pristine car that I've owned pretty much all its life, to me, its irreplaceable :-)
thank for all the comments and views peeps.... always appreciated :-)
RoverP6B said:
Oh, of course! I've just been mulling a possible S54 swap into my E39 and whether to s/c it... I understand you can also stroke 'em out to 3.5 litres which helps on the torque front...
you can but the cost is huge.... the s54 really responds well to boost, iron block, forged internal stock, its like a german 2JZ.... before you knock the idea try and get a ride in a blown s54 car, so so so impressive.Basically I had been living in London for 8 years until Feb 2013, but came back to NZ for a new job. After a few months I had to go back to London to close some things out, and when I was back there I decided to buy something nice to ship back with my belongings. I love it, though I have had to replace an injector, water pump and get the DSC pump repaired since it got here! Ouch.
BE57 TOY said:
What's the story here? You must like it lots?
Beedub said:
RoverP6B said:
Lovely, looks better than CSLs - is this a proper M?
its real rover.... with some spice... made 520hp on its last pump fuel only dyno. its a centrifugal blower so it basically feels like I've removed the s-6 and fitted larger motor... throttle response, etc has not changed one bit... Tq curve and HP curve were identical to a stock s54 just higher up the graph.... alot higher.... this is what i LOVE most about this kit, you still need to rev it to get it moving, blower is abit noisy at times but i can still hear that lovely mechanical s54 doing its thing... would i do this again??? NO.... but I've owned this car for nearly 7 years now.... i can't let i go... so am happy to keep pushing it a little further... everything needed to support this power level has been addressed, long road.... but fun too.... i do understand your concerns however.
Edited by Beedub on Wednesday 9th April 16:53
RoverP6B said:
JuanGandini said:
My M135i. Supposedly an ugly car but I quite like it in profile.
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