Markert Motor Works Dyno Thread (many inside)

[ForcedFirebird]

So you took naturally aspirated 6 cylinder BMW car stock with stock tune then did a dyno run then tuned it then did another dyno run and made 40hp/40tq?

Red label 413 s52 swapped e30 with forged pistons (10.5:1), sunbelt cams, obd1 manifold, 3.5" MAF, 24lb injectors and long tube headers. Same dyno same day, same tuning session. It probably would have done a little better if it was left to cool down, it was pretty heat soaked by the end. The first pull was a very popular companies mail-order chip made for this particular combination.

I use TunerPro RT and an emulator.

By the looks of it be did ~40 runs and picked up at max delta 30 in the midrange...

Yes, right where the RPM's are post gear shift. Didn't pick up peak power, but 30hp at the shift made it a whole new car to drive. Peak torque really moved up as well as area under the curve.

[328ijunkie]

I have an emulator. Do I use it at dyno? No. Reflash time is ~49 seconds so don't really need it. Only thing I use it for is full flashes (256k)

[DesertBMW]

I personally hate doing obd1 stuff. For one, don't have an emulator so I'm constantly flashing chips at dyno

Are you saying you have the 28F200 emulator for MS41 and you do real time tuning on a dyno?

[328ijunkie]

I personally hate doing obd1 stuff. For one, don't have an emulator so I'm constantly flashing chips at dyno, in addition to that the obd1 cars I have tuned I've never been happy with. They usually don't come to me working/running at 100% and tuning them is a headache. Sometimes I'll do 3 runs without changing a single
Thing and the hp/tq will waver by 20
For whatever reason. Also
The knock sensor feedback is abismal so max power dyno tuning is fun...

[mpowerful]

Dave do you do charity case tunes hahaha?

Serious question though i noticed you changed the site up and didnt see any reference to obd1 tune prices. How much would it be to do a obd1 dyno tune? Do you have an emulator you can plug up for dyno then flash final tune to a chip?

[Bimmian89]

http://m.youtube.com/watch?v=GDjLrd-EjBI&feature=youtube_gdata_player

Dave is the Fk'n man!

[RobertK]

All kinds of HPs and TQs and stuff. I'm diggin' it.

[digger]

So you took naturally aspirated 6 cylinder BMW car stock with stock tune then did a dyno run then tuned it then did another dyno run and made 40hp/40tq?

http://www.r3vlimited.com/board/showpost.php?p=4142072&postcount=151

[328ijunkie]

By the looks of it be did ~40 runs and picked up at max delta 30 in the midrange...

[DesertBMW]

Have you ever spent any time tuning on a dyno? I have before/after that gained 40wtq and 40whp. Same dyno, same day, consecutive runs. :)

So you took naturally aspirated 6 cylinder BMW car stock with stock tune then did a dyno run then tuned it then did another dyno run and made 40hp/40tq?

[ForcedFirebird]

That torque jump...

Under curve :)

So many people only look at peak.

[Aviator]

Wow, that s52 is healthy!

[surebimmer]

Are these OBD 1 tunes or OBD 2. Or does it not matter? Can you remote tune?

[328ijunkie]

Lol, I like this the best...

http://i448.photobucket.com/albums/q...psae2f6ab5.jpg

That torque jump...

[digger]

is it just one switch point (two regions) where you define a adv/ret for each region? i know the newer M S5x were infinite variable