AEM Dyno-Shaft
Has anyone seen this yet? just came across it. Interesting.
http://blog.roadandtrack.com/product...011-sema-show/
http://www.jegs.com/p/AEM/AEM-Dyno-S...25271/10002/-1
http://blog.roadandtrack.com/product...011-sema-show/
http://www.jegs.com/p/AEM/AEM-Dyno-S...25271/10002/-1
There is a short video on youtube from SEMA about this product and the AEM guy says that if they do not have the application already, you can special order the yoke from them and have it in about two weeks.
I would like to see this on a vehicle that is also on a chassis dyno for a direct comparison. If it works halfway decent, it could at least be a nice tool for street datalogging
I would like to see this on a vehicle that is also on a chassis dyno for a direct comparison. If it works halfway decent, it could at least be a nice tool for street datalogging
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Is should. It is measuring force on the drive shaft over a given time and since it is working through the drive-line the force it is measuring has those losses it is working against.
When I was talking with Curt at SEMA he was kinda selling it as just another datalogging parameter. Selling it as people should still have there car dynoed by professional tuners and set up properly. Then use this tool as a way to datalog on the track to see how variable conditions affect power.
I was pretty impressed with the set up they had at SEMA along with alot of other new products AEM is coming out with shortly...
I was pretty impressed with the set up they had at SEMA along with alot of other new products AEM is coming out with shortly...
Lol, yeah… seems like a bad idea to use this in place of an actual dyno; every time I get my car tuned the tuner usually does 10+ pulls on the dyno… something’s bound to go wrong if you’re trying pull after pull on the street to tune your car.

it's almost impossible here in st louis to find a place to do my street tuning. So many stupid *** people always out on the roads.
It wont, numbers will be inflated over actual WHP. now if they can make a program to where you dyno your car then input the data from both and create a formula, then the device could run the adjusted information.
Think of it as calibrating the device.
This was an interesting release at SEMA, but targeted primarily at domestics and Z is not supported. Due to the Z's driveshaft configuration I don't see it as an easy install. It is mainly designed as a datalogging tool, and would be handy for drag racers who need more data going down the track and for those who will attempt street tuning. The trouble with street tuning is perfect repeatability and also the speeds required by high powered cars to street tune without spinning tires.
As for numbers... whether it reads in line with a Dynojet or DJ * 10... it is a tuning device. As long as the numbers are repeatable and consistent, I wouldn't worry about the actual number it is spitting out. If you are buying this just to get numbers out of your car... $50-100 at your local dyno would be the better option than a $2000 driveshaft dyno setup.
As for numbers... whether it reads in line with a Dynojet or DJ * 10... it is a tuning device. As long as the numbers are repeatable and consistent, I wouldn't worry about the actual number it is spitting out. If you are buying this just to get numbers out of your car... $50-100 at your local dyno would be the better option than a $2000 driveshaft dyno setup.
I do think this is cool, especially because there is only one rather crap dyno within an hour or two drive from my city. I think the niche that will pick up on this are people in similar situations as mine; stranded without a dyno, but want to have something to compare against. Except they have a ton more money, LOL. It really is a clever little datalog deal imo.
You could always get a custom driveshaft made for this thing if you really wanted, right?
You could always get a custom driveshaft made for this thing if you really wanted, right?
where do you live that there are no dynos? there are dynojets everywhere, unless you live in Montana apparently.
Most every domestic shop has one.
http://dynojet.com/dyno_centers/list_automotive.aspx
Most every domestic shop has one.
http://dynojet.com/dyno_centers/list_automotive.aspx
Last edited by str8dum1; Dec 14, 2011 at 05:48 AM.
where do you live that there are no dynos? there are dynojets everywhere, unless you live in Montana apparently.
Most every domestic shop has one.
http://dynojet.com/dyno_centers/list_automotive.aspx
Most every domestic shop has one.
http://dynojet.com/dyno_centers/list_automotive.aspx
Seriously it's shocking. The closest one here is run by a miata shop, but apparently is pretty inconsistent and I've heard he usually charges out the butt. Seems most of the local tuners do street pulls
I can go to LA or the Bay (pretty much equidistant) but there are risks when you do that... Those areas are hot spots for cops that know their ish, and they are just waiting to fock you with ref tickets etc...
I've already decided I'm going to SP Engineering for my tune, but dyno pulls for #'s and fine tuning is kinda harder to come by.
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