Eventuri VAI Carbon Intake Kit for the Z4M details

To echo what Steven said, I also had the intake fitted in Inty and am also pleased with the results. Unfortunately the weather was rather disappointing on Sunday so I didn't get a good chance to exercise her lungs however once I've had a chance to fully explore the kit I shall be writing a review which will be featured in the Z4 register section of Straight Six magazine. If you are not a Car Club member, I shall also be posting it on my new site 'M-Rated' so I'll let you guys know when it's up :thumbsup:
:driving:
 
Z4M-2006 said:
How much BHP do you get from CSL airbox conversion then? Just the airbox and and software,not the CSL cams ?
Click to expand...

I think evolve claim a 25-30bhp increase on the M3 so it should be similar for us. I think woots made around a 30bhp gain though his car was supposedly a little down on power to start with due to the afe intake if i remember right.

Seeing as very few S54's actually make book power though i think that you'll probably see a final result of around 350 ish-any more would be a bonus imo.

Whilst theres no substitute for the real thing (imo), this intake seems to have done a pretty good job of getting you almost there but in an affordable, straightforward package and i can see why they have been popular
 
Was good to see some of you on Saturday - weather just about held up!

I guess I can get a bit carried away with describing how the Eventuri works - can't help it, I just have to explain the distinction from other intakes out there :oops:

Hopefully more of you will get to experience the improvement in performance and sound.

I spoke to Imran about the 200rpm - he hit the limiter on both runs, sometimes the grip levels can change on the tyres due to heat which can cause a slightly different speed reading in the dyno. But the gains are pretty much from 4000rpm onwards anyway so the important thing on the graph is the shape and delta between the 2 runs.

I look forward to your write up Ninarvana - let me know if you need any technical details. :thumbsup:

Bilal
 
beanie said:
Z4M-2006 said:
How much BHP do you get from CSL airbox conversion then? Just the airbox and and software,not the CSL cams ?
Click to expand...

I think evolve claim a 25-30bhp increase on the M3 so it should be similar for us. I think woots made around a 30bhp gain though his car was supposedly a little down on power to start with due to the afe intake if i remember right.

Seeing as very few S54's actually make book power though i think that you'll probably see a final result of around 350 ish-any more would be a bonus imo.

Whilst theres no substitute for the real thing (imo), this intake seems to have done a pretty good job of getting you almost there but in an affordable, straightforward package and i can see why they have been popular
Click to expand...



Hmm...

I thought a CSL was 355bhp ?

So with an Eventuri intake and a evolve remap we should surpass CSL power?
 
Standard CSLs make about 355hp on the dyno we use at Evolve. The average gain we have seen on the E46 M3 with the Eventuri intake and Evolve Map is around 350hp. The highest we have seen so far was last last month on a very healthy E46 M3 from another forum member - he made almost 363hp with intake and tune. :driving:

However this won't make him faster than a CSL - the CSL is not just about power - it's lighter for a start!

Here is his graph:

16627345886_f502220aed_c.jpg
 
Standard CSLs make about 355hp on the dyno we use at Evolve. The average gain we have seen on the E46 M3 with the Eventuri intake and Evolve Map is around 350hp. The highest we have seen so far was last last month on a very healthy E46 M3 from another forum member - he made almost 363hp with intake and tune. :driving:

However this won't make him faster than a CSL - the CSL is not just about power - it's lighter for a start!

Here is his graph:

16627345886_f502220aed_c.jpg
 
Thats great thanks..

So..

Stephens car even with the Eventuri still isnt making the claimed 338bhp as standard though...Would that benefit from a remap now?
 
Surely he had other mods though? A CSL carbon intake costing thousands designed by BMW with uprated cams and BMW ECU compared to a £600 intake and a tune can yield greater BHP and 7 more on top of that than BMW's best work? Call me a cynic and I'm no expert but it does sound a bit unlikely?! If it really is the case then I'm sold, independantly tested that is.

Sorry just noticed the biggest increase is from raising the rev limit, answers my question, to a degree!
 
Z4M-2006 said:
Thats great thanks..

So..

Stephens car even with the Eventuri still isnt making the claimed 338bhp as standard though...Would that benefit from a remap now?
Click to expand...

Worth stating that all dynos will produce different results, my car (assuming you are referring to me :wink: ) might be making the claimed 338bhp in other environments. Just in case anybody takes that comment and thinks my car must be a lemon :thumbsup:
 
Yea sorry Steven.

That wasnt the point i was trying to make...

But surely the Dyno's must be calibrated as whats the point of doing power runs ?
 
to some extent, but they all tend to disagree as far as i'm aware.

Also - I don't know how long the car is expected to continue to output the original power figures.
 
Yea.. But surely not 10-20 bhp??


A car shouldn't lose hardly any bhp as time goes on ..

Like the M3 in the tests that pulled 363 bhp with just a remap and intake.. That must be a 10 yr old car at least.
 
I'm always interested in remaps - i find it interesting that random garages (no offence evolve..) can get more out of a car than the M division who know it inside out.

Clearly, JB4's turning up turbos on N54's is a different thing, but the already fine tuned S54 etc.. just makes me skeptical. If ¬25-30bhp is achievable with a filter and a remap that's pretty impressive. Not much else you can do without going near the cams etc.
 
I don't pretend to know anything about the workings of cars or the manufacturing process/design philosophy, but I was led to believe that a lot of car makers intentionally either restrict a cars power output or hold it back to either a) not step on the toes of other cars in their line up or b) keep it within safe operating parameters, or to conform to emission regs, or perhaps the aftermarket folk simply can do a better job :D
 
Z4M-2006 said:
Yea.. But surely not 10-20 bhp??


A car shouldn't lose hardly any bhp as time goes on ..

Like the M3 in the tests that pulled 363 bhp with just a remap and intake.. That must be a 10 yr old car at least.
Click to expand...

I would imagine that environmental conditions (ambient temps, humidity, pressure etc), tyre pressures etc would impact results.

Low temp, high pressure, high tyre pressures will provide better results.
 
So was it particularly hot, humid or have low tyre pressure on the day?

I can see poor fuel backing down the timing I guess...

How was the test operated I the day Stephen? 3 runs with and without intake and an average taken, or 2 maximum power runs ?
 
I'm sure I read somewhere that the standard S54 will never show its peak 338bhp on a Dyno because of the ram air effect of the OEM intake, which will make the claimed power out on the road rather than a controlled environment such as a dyno. I might have got that wrong though - I'm no expert.

I think mine made about 323bhp at 7,300 rpm when mine was tested a couple of years back on a BMWCCGB rolling road day. It was and is totally stock although it will be totally stock apart from the intake tomorrow! :driving:
 
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