Huge price rises on Z4M intakes – which one to go for?
- Thread starter dan yeates
- Start date
hopz121 said:Have a look at these
http://www.karbonius.es/web_ing/productos/autos/base_bmw.html
A company on m3cutters can get the intakes for you to avoid buying them from Europe etc also plenty of people who can fit and map for you on cutters as well
Hmmm, not for our cars, the DME is very different to an E46M3 and much harder to work on apparently. If evolve have sorted out their map with our cars now (which apparently they have, six speed is probably the guy to ask) then you could go there.
The karbonius will need a bit of work to fit with our cars, see Vanne's recent threads, you kind of want one where the snorkel section is designed for our cars ala evolve or in my case goke (but NLA), not for a CSL with the intake feed at the bottom of the bumper.
Well an M3 is not a CSL. The differences between the M3 and the Z4M in power output are either down to intake or exhaust differences, that's for sure. (it's what ~ 4bhp or something?)
The CSL airbox is completely different to an M3 one or a Z4M one.
The CSL exhaust is basically identical to an M3 one, so no power gained there.(not that you could fit it to a Z4M).
Other differences in a CSL engine are the cams which will also increase power.
The CSL airbox is completely different to an M3 one or a Z4M one.
The CSL exhaust is basically identical to an M3 one, so no power gained there.(not that you could fit it to a Z4M).
Other differences in a CSL engine are the cams which will also increase power.
It's not nessasarily a fact just bolting one on won't give you the desired effect as the ecu will still think the box is stock so may decrease power. They will sound good but you will probably be loosing power.
The CSL air box needs an alpina N tune to work properly.
Also the exhaust mods aren't always perfect either as the original exhaust on the M is designed to give you downforce too. Not that it will make any difference.
To get the best you need to have the car remapped for it to take advantage of the extra free flow.
Or in other words more money. With the exhaust, intake and a map your in 2-6k and might get 15-20hp max and that's an optimistic increase.
The CSL air box needs an alpina N tune to work properly.
Also the exhaust mods aren't always perfect either as the original exhaust on the M is designed to give you downforce too. Not that it will make any difference.
To get the best you need to have the car remapped for it to take advantage of the extra free flow.
Or in other words more money. With the exhaust, intake and a map your in 2-6k and might get 15-20hp max and that's an optimistic increase.
tomscott said:
Actually you have to get it mapped for alpha-n as there is nowhere to mount the maf. Unless of course you like running around with your EML on all the time. :wink:
15-20hp seems to be about right for these on their own, there are many dyno charts out there with before and after runs. Really though, the power gains should not be the reason to choose this mod, it's just a nice byproduct.
TomK said:
This about sum's it up & as you previously pointed out a Eventuri can manage that with minimum fuss / reasonable outlay
Have you ever had a rolling road test on your Tom with the cams & CSL airbox ?
I was reading a few weeks back on a forum guy around 5yrs ago who did similar with his Imola roady & managed circa 385 i think ?
Exactly, well it goes some way at least towards the sound for far less cash. The thing is once you hear a CSL setup nothing quite compares. I've driven Z4Ms with both types of intake, the difference is significant, is it worth 5 or so times the money, only you can decide. Don't try a CSL car though if you not prepared to seriously start selling your children etc to get one.mr wilks said:
385 is totally unreallistic with my/that setup. I took my old M3 (which had just the CSL box on, no cams) to a somewhat renowned tuning shop for a dyno day. It made 384. Utter tosh, however relative to the other standard m3s there at the time it made considerably more.mr wilks said:
I have had my Z4M on a dyno (minus the SS exhaust) that I trust and at the same time as a friend (who bought my car, so same engine as above). My/his m3 made 352, mine 365. That's what I'd expect, and just a little up on CSL OEM claims. My cams are very slightly more aggressive though which could explain it.
If so, with a friendly dyno that would surely be possible.mr wilks said:
As has often been discussed dyno numbers are a bit of a joke (see above where there's a 30hp disparity between 2 different dynos for the same engine) . The only way to glean any information is comparing directly between cars/mods at the same time. Even then things like tyres can affect the outputs.
Anyway, it feels fast enough as it is :lol:
+15 hp from an Eventuri intake alone??.. tell em they are dreanin mate. Dont get me wrong, its a very nice looking intake, but 15hp is in Dreamland.
As someone previous has already pointed out, dyno runs vary... A lot.. if Evolve is claiming 15hp from their intake, without a tune or anything else, that would probably be enough to take anything they say with a grain of salt. It is a sweet looking piece though.
As someone previous has already pointed out, dyno runs vary... A lot.. if Evolve is claiming 15hp from their intake, without a tune or anything else, that would probably be enough to take anything they say with a grain of salt. It is a sweet looking piece though.