MS6 on 2WD dyno?

[Silo]

Hello guys,

does anyone know if the AWD can be disabled on the MS6 in order to dyno it on a 2WD dyno? I ask because I know from some Volvo guys who dyno their cars this way.

Thanks.

 

[MrTea]

pull the ebrake and you go into FWD mode. i know of one guy that did it that way supposidly, or at least that was his reason his numbers where so much higher than the norm.

 

[Silo]

Oh yeah, I heard about pulling the e-brake will cut off power to the rears but I was not sure if it would be a valid/safe method for dynoing the car.

As for the numbers I wouldn't be too worried. I am more interested in the relative difference from before and after measurements, not the total hp or torque.

You remember the guys nick? Or the thread? I would like to confirm that.

 

[Maxx Mazda]

Interesting...

 

[Alejo_NIN]

i would've thought the car would peel in the back....hmm....4wd...interesting

 

[GhostMercury]

i highly highly highly doubt that would work

 

[MrTea]

anyone ever try to do a burnout with the ebrake on? the ebrake is supposed to disengage the dif so all power is to the front. i don't have the speed, so i'm just going by written material and what others have said.

is there a reason you don't just hit a 4wd dyno? at most it's and extra $20 more than a 2wd pull. where ya at, i can find one

 

[pHeeL tHiZ ViBe]

that would be an interesting dyno run...what with having to pull your speed out of the wall that was infront of it, after attempting this supposed 2wd rumor lol.

i drift my speed quite a bit, and sometimes i find myself on the gas and the e-brake at the same time. and i maintain a powerslide while doing that...so i highly doubt that the ebrake disengages the AWD under all circumstances. otherwise i would not be able to powerdrift while playing with the ebrake, ya know.

 

[MrTea]

wait, you powerslide with the ebrake on?? or do you pull the brake to enduce the slide, then set off and power through the slide? don't know why you'd leave the ebrake on while powersliding?

i think a good way to check would be go to a large lot, and put some fast food trays under the rear wheels (or some pieces of cardboard i guess), yank up the ebrake and go for it. have someone watch the rear or video to watch and see if the rears spin the pieces out or it just slides.

seems like an easy test?

 

[PerfectXtreme]

I burned out with the e-break clicked up once. Burning the tires off is never really good or usefull for anything... but I did it for whatever reason. works fine... We have LSD in the front or whatever... so its more difficult than you'd imagine... if you don't get the tires spinning nicely you'll just hop around as it tries to shift power between the two.

 

[pHeeL tHiZ ViBe]

wait, you powerslide with the ebrake on?? or do you pull the brake to enduce the slide, then set off and power through the slide? don't know why you'd leave the ebrake on while powersliding?

i think a good way to check would be go to a large lot, and put some fast food trays under the rear wheels (or some pieces of cardboard i guess), yank up the ebrake and go for it. have someone watch the rear or video to watch and see if the rears spin the pieces out or it just slides.

seems like an easy test?

lol no i don't powerslide with the ebrake on!
i induce the drift through proper weight shift/steering, and power transfer to the rear wheels(which is the tricky part of drifting an electronically controlled AWD car); but if the ass end starts to come out of the drift for whatever reason, lets say cuz the front wheels are pulling a little much.
the most perfect solution is to quickly pull the e-brake for a second, then release it while getting back into the gas pedal. that will get the back end out again, so you can continue to manipulate the car through the drift.

also just a very quick but hard tap on the brake pedal sometimes works better then jibbing the ebrake, it just depends.

BUT what i was saying is when i happen to have the ebrake up like i explained above, and i start to gas again. sometimes the ebrake isn't fully disengaged, and my back tires can still spin At Least some of the time.
it is really hard to tell, since every drift requires a different amount of acceleration. as well as different amounts of brake. and more often than not a combination of both at the same time.

 

[shane02pro5]

You have seen Tokyo Drift way too many times! You're car has to be hating you for it!!

 

[pHeeL tHiZ ViBe]

You have seen Tokyo Drift way too many times! You're car has to be hating you for it!!

actually i've never seen that(i've seen clips on the internet, and it looks ridiculous though..so so so unreal), (hah) but thats not the first time i've been told that.

my car loves me (thumb)...i don't think my tires do LOL, i didn't by a turbo'd AWD 4 banger to drive it like a pussy ah haha.

to each their own(yippy)

 

[pHeeL tHiZ ViBe]

and besides that.. i think that the MS6 has a very solid frame, and a VERY rigid feeling overall. the only thing i'm worried about hurting is the rear diffs mounting bolts.

anyways let this thread continue to be about some insane idea to dyno an AWD car on a 2WD dyno just to save a few bucks but risk the chance of the rear tires engaging and destroying your car completely and in a much worse way than drifting it ever could assuming you keep it on the road so yay for stupid cheap ideas drifting may be stupid but atleast its not cheap so cheers all. ( no punctuation...for effect )

 

[Silo]

Dude, not everywhere is a 4WD dyno available... don't call it "stupid cheap" because you are privileged.

 

[pHeeL tHiZ ViBe]

Dude, not everywhere is a 4WD dyno available... don't call it "stupid cheap" because you are privileged.

fair enough (kiss)

 

[MrTea]

i actually couldn't care less how to drift, it's just from this statement you seemed to use both at the same time which didn't seem correct

i drift my speed quite a bit, and sometimes i find myself on the gas and the e-brake at the same time. and i maintain a powerslide while doing that...

how are you able to tell that your rear wheels are powere "at least some" while you are in a drift? i just don't get that. "at least" would seem to imply you don't feel the drift continuing, so there is no tire spin....so seems just as likely the front wheels could be pulling it all...no? or possibly you have some vids of the rears spinning while you are on the ebrake?

it's seems a definite answer would be how i explained, rather than an impression during a drift. i understand you (and many i'd guess) would not want to do this, but doesn't mean it's not possible. i don't see many dyno guys even wanting to risk it....but again, i have yet to see it unproven.

 

[Silo]

Back to topic, check out this reply: http://www.mazdas247.com/forum/showthread.php?t=123678213&page=2

MS6 dynoed on 2WD - it has been succesfully done.

 

[pHeeL tHiZ ViBe]

how are you able to tell that your rear wheels are powere "at least some" while you are in a drift? i just don't get that. "at least" would seem to imply you don't feel the drift continuing, so there is no tire spin....so seems just as likely the front wheels could be pulling it all...no? or possibly you have some vids of the rears spinning while you are on the ebrake?

it's seems a definite answer would be how i explained, rather than an impression during a drift. i understand you (and many i'd guess) would not want to do this, but doesn't mean it's not possible. i don't see many dyno guys even wanting to risk it....but again, i have yet to see it unproven.

no no, i definitely feel the drift continue. to answer that question all that needs to be said is that, you can drift a car whether the wheels are spinning or not. you can drift by simply taking a corner at high speed, and loading the suspension, then just letting off the gas! no gas, no brake, just loss of traction (cool). and the e-brake isn't UP completely (like the brakes aren't engaged at all) in the situations i was trying to explain, its just might not be fully disengaged. meaning it may be up a "click" or two. which people stated that disengages the driveline .
but
i can't tell for sure cuz i just hold the button in on the handbrake the whole time, so there are no clicks. might be all the way down..but possibly not is all i was saying. just don't trust it on a dyno!
its just really hard to tell with so much going on when you are sideways, paying attention to the placement of your car on the road, slippage, with constant gas, clutch, brake, e-brake, and steering manipulation to tell if i am holding the ebrake up a little at the times the rear wheels are spinning.


i just didn't want ppl to try to dyno a car, placing trust in the 'handbrake theory'. cuz thats not safe.

anyway glad you found a real solution, good old black box.

 

[freekwonder]

I have not and will not try the e-brake theory, I don't trust it. but when I get a chance I'll take a picture of the black box. Disconnect it and your car is FWD only and it will work on a 2wd dyno.