Im looking for a place that sells the programing for the E30 S54 swap i cant remember where i saw it but there where 3 stages i suppose one just removes some switch signals the next one has i guess a portion of the alpha N and the last one is Full alpha n. Any one have any idea?
-
Float like a cadillac sting like a Bimmer!:)
sigpic -
I would maybe check the m54/s54 swap subforum and I dont know what you mean by three stages but I'm sure someone there will be able to point you in the right direction like MarkD so possibly check that and also make some shorter sentences ok thanks bye. -
Mark D on this forrum can do that for you. If not try epic motorsports down where Iam and let us know how that goes. But hit Mark D first.Comment
-
what are you looking to do exactly?
be careful, a lot of alpha-N "tunes" are just deleting the MAF error codes and running on a limp mode map with no retuning.Last edited by nando; 02-06-2013, 08:25 AM.Comment
-
no.. you don't need to do that, it already has variable TPS input, but the regular way (deleting the MAF error codes) also often results in fuel trims not working correctly, because the MAF signal is ingrained into the feedback loop.
The "right" way to do it is to flash to a CSL binary and retune it for a regular S54. You also need a 1 bar MAP sensor, but it can be any sort as long as you know what the curve looks like (pretty easy, they're all basically the same). Right now that means sending your DME to somebody.. no way to do it remotely as you have to change the boot sector to the CSL version.
as far as I know it hasn't been completely tested either but I think that will happen very soon. :)Comment
-
The CSL uses a map sensor? Wouldn't the pressure signal be a little unstable, I have seen people tap a signal off every ITB into a vacuum tube and then use that as the source for the MAP sensor.
Ahhh...so it's not true Alpha-N, you are just converting from MAF to Speed-Density? So if you wanted to run velocity stacks (I personally prefer the direct air-mass reading of a MAF) creating a post-ITB Vacuum tube would become a necessity.
Comment
-
It's a blended speed-density/ alpha-n. There is a vac distribution manifold to help get a good reading, and above a certain load it is pure alpha-n (70% or so).
Mafs cost more, are subject to turbulence, dirt, electrical failure, and are more restrictive. Meh :pComment
-
People are mistaken, they think the CSL gets more power because of the different intake manifold(shield/guide), but that is wrong asumption. It still gets reduced down to 3.5" inch at the end of the manifold.
That CSL intake box only makes 1hp more when compared to stock intake that is run without filter element. this was tested on a dyno.
The CSL airbox does make more power that is only because of the bigger filter element, it makes 9hp more when compared to stock intake box with small filter element that is same size sense 1992 325i filter.
Thus I come to conclusion that one could make the same or almost the same power with stock intake plenum using CSL DME(with MAP sensor installed) and get rid of MAF and run straight pipe from stock elbow down under the left fog light, and put big cone filter on it
Most of the power gain comes directly from the CSL DME where most of the emission and fuel economy is detuned for the benefit of making more power out of the engine. CSL cams have longer duration but less lift.Last edited by DesertBMW; 02-24-2013, 11:02 PM.Comment
-
-
The MAF on the s54 is only a restriction when it comes to installing hotter cams. The CSL car makes the power from numerous factors, not just the DME...
Better flowing headers (most of the power is gained here)
Better flowing exhaust
Higher degree cams
Larger intake plenum
Custom Alpha-N tuning
All this being said, good tuners will make a considerable amount of power with the CSL airbox vs. the factory intake (even when the maf is removed and they're custom tuned with Alpha-N). The original CSL intake has a restrictor at the front, with a flap that almost acts as a muffler for the airbox. If you remove the restrictor and flap, there are bigger gains with proper tuning. Evolve and Epic Motorsports have both show nice gains with the CSL intake, on the factory DME.Last edited by e30polak; 02-25-2013, 04:30 PM.Check out Undr8d Empire on Facebook: www.facebook.com/Undr8dEmpireLlc
INSTAGRAM: @UNDR8D_EMPIRE
Scarlet V2 - #Project333Ti by @castromotorsport, @kingsautobodyshop, @bimmerheads, @hardmotorsport, @excel_motorsports & @mateomotorsports - http://www.r3vlimited.com/board/showthread.php?t=371356
Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.Comment
-
Its a noise flap - even the bmw internal codes say so. It performs no engine function.Comment
-
^Also what I've read. It's like the intake version of the exhaust flap setups, make performance cars more pedestrian friendly. We can't have an unsuspecting CSL owner being held liable for someone jumping off the curb at a crosswalk when he plays footsie with the skinny pedal, can we?Comment
Comment