Markert Motor Works Dyno Thread (many inside)

[nando]

GM MAF's output a frequency proportional to airflow, giving them *FAR* better resolution and range than a 0-5V signal... switch to that system?

how do you suggest doing that? reprogramming the DME from scratch? :p

It's only a problem when the MAF is too small for the given airflow and the signal starts to max out. The MAF wouldn't be able to read higher anyway, even if it was frequency based. I'm not convinced it's really better regardless, BMW could easily use that system if they wanted to, but they've continued with a 5v signal instead. The resolution of the signal has more to do with the speed and quality of the ADC input than how many volts or what type of system it is, anyway.

[The Dark Side of Will]

That was mostly a joke, I know it wouldn't be easy... BUUUUUT GM went to a 58x trigger wheel across the board in '05/'06ish ;-)

The frequency signal isn't susceptible to corrosion in the contacts or the other ravages of age... and it just plain is more accurate across a wider range of signal ;-)

[328ijunkie]

Uh long time no update!
Some FBO 335:

Some FBO S52 E36 pre/post exhaust work:

12PSI S52 VortechSC E36 Vert:

M50 E34 bone stock, pre/post tune (OBD1):


Remote Tuned 12:1 S54 pump gas (dislike new dynojet software):

[TheAxiom]

Uh long time no update!
Some FBO 335:

Some FBO S52 E36 pre/post exhaust work:

12PSI S52 VortechSC E36 Vert:

M50 E34 bone stock, pre/post tune (OBD1):


Remote Tuned 12:1 S54 pump gas (dislike new dynojet software):

info on S52 exhaust

[328ijunkie]

info on S52 exhaust

Went from headers/stock midpipe to bigger headers merging to a 3". This is the culprit for the torque loss.

[Bimmerman325i]

Went from headers/stock midpipe to bigger headers merging to a 3". This is the culprit for the torque loss.

Stock cams? Pullies/flywheel? Stock TB? 91 oct?

Which headers, Turner Shorties?

247whp without gutting the bottom end AND keeping cats is damn impressive. And tempting.

[328ijunkie]

Stock cams? Pullies/flywheel? Stock TB? 91 oct?

Which headers, Turner Shorties?

247whp without gutting the bottom end AND keeping cats is damn impressive. And tempting.

Schricks IIRC, originally stock headers/midpipe then to ebay headers and some 3" midsection. 93oct.

[TheAxiom]

Schricks IIRC, originally stock headers/midpipe then to ebay headers and some 3" midsection. 93oct.

HOw close was that merger to the headers?

[DER E30]

4/27/16
E46 M3 VF SC 6psi IC kit. VF Tuned vs Our retune. VF apparently doesnt see the need to alter factory vanos maps as well as overfueling like hell. Also BOV or something is freaking out up top. Boost falls off at ~7500.

I'd be pissed if my m3 was fast until 7500 rpm then fell on its face!

[grinchxvx]

Can you tune a obd2 m52 turbo e30?


Sent from my iPhone using Tapatalk

[The Dark Side of Will]

I @$$ume that a '96 non-Vanos M62 DME would be easier to tune than an OBDI M60/M62 DME.

Is this correct?

[328ijunkie]

10/4/16 Update
Behind on this:
Stock E46 M3:


Single Turbo 335i, E85 Port Injection


Intake/Exhaust E92 M3:


Nearly Stock E92 335is


F10 M5 Jb4 Eisman DP's


F30 328i Jb4


AA HKS SC 8psi ZM3 Roadster. AA tune vs MMW tune

[328ijunkie]

Also: 18.5PSI M50 manifold Ebayheader Cutring Stock CR S52 Vortech V1 T-Trim E85

[328ijunkie]

AlsoX2:
S52 Mroadster progression
Stock tuned
M50 manifold tuned
M50 Manifold Ebay headers/exhaust Tuned
[IMG][/IMG]

[M-technik-3]

Gained another 12 hp using some Chinese exhaust manifolds?