I'm looking for feedback from people who have dynoed their pickups or have a chassis dyno. What brands, pros and cons, pricing etc. Any feedback is appreciated. Thanks! Tim

Anyone?

I'm looking for feedback from people who have dynoed their pickups or have a chassis dyno. What brands, pros and cons, pricing etc. Any feedback is appreciated. Thanks! Tim
I like the Superflow.:D

Like Guy's signature say's : Use a LOAD CELL or don't bother! I never ran on an inertial dyno with the diesel, but with the very short RPM range it can't be to as good. My vote is for LOAD CELL type.

J

Thanks for the replies guys. I was hoping for a little more feedback on this subject as I've been thinking about putting in a chassis dyno. I thought I could decide at the P.R.I. show which brand may be best. I'm kind of leaning towards a Mustang 1100 with eddy current or possibly a Dynojet with eddy current in second place. Didn't know if maybe some of the people on here have figured out which brand seems to be best. Also what is the going rate to dyno your pickup. Just trying to do the math on the thing. Any info would be appreciated. Thank you! Tim

Thanks for the replies guys. I was hoping for a little more feedback on this subject as I've been thinking about putting in a chassis dyno. I thought I could decide at the P.R.I. show which brand may be best. I'm kind of leaning towards a Mustang 1100 with eddy current or possibly a Dynojet with eddy current in second place. Didn't know if maybe some of the people on here have figured out which brand seems to be best. Also what is the going rate to dyno your pickup. Just trying to do the math on the thing. Any info would be appreciated. Thank you! Tim
I can't really offer any adivise on the Mustang as I have only ran on one.....once. When I did they could not pull down my duramax as low as I wanted to go in the rpm range and hold it there while the dmax stabalized before allowing it to accelerate. I also heard the Mustang demo at PRI
was less than stellar.:eek:

Now, the Superflow (or Stupidflow as a friend of mine calls them) I have approx. 160 runs. It does an excellent job of holding back all the torque that my duramax can throw at it. Beating the turbo diesel with a severe load under a slow controlled acceleration test is the key to getting repeatable results. You can also run inertia tests like the Dynojet. Each time I dyno, I hook up all the auxillary sensors I can and let the dyno record:

Lift pump fuel pressure
Boost
EGT
Post intercooler air temp
etc
The possibilities are endless.

Now the Dynojet (or Dynojunk) as I like to call them is generally an inertia type dyno accelerating a drum of some given known weight. They may have a newer version out that can hold back 1100 ftlbs of torque in a slow controlled and loaded acceleration test but I have yet to see one.

It seems like your not even considering the Superflow is there something I have overlooked?

IMO, while the dynojet is not perfect, it is repeatable. Yes, more load would be better, but the price, simplicity, and fast hookup make the dynojet pretty handy.

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I am in the same boat as you are. :confused: We built an addition onto our shop for drive in service about two years ago, and at that time we had made up our mind to buy a Mustang 400. The 400 is a stronger version of their 250. The pit was put in at that time and still sits empty. Since that time the modified diesel trucks have evolved past or close to what that dyno can handle. When I lay out that kind of cash I want to be sure that it will handle whatever I throw at it for years to come. The last quote I got from Mustang was $36,715. The spec’s on that one was 800 hp at 100 mph. That dyno also has the two small roller design which has traction problems, especially if the rollers are not knurled. The new 1100 series looks much better with 1100 hp at 200 mph. It has the single larger roller. Mustang is supposedly coming out with a new software program. I have been told this since I started this process and it is still not out.

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The Super Flow 1200A-849 handles 1500+ hp at 200 mph. The 849 has the wider rollers that will handle both a dual wheel truck and standard car applications. It has the large single roller design. The standard price list price is $66,000, but I think they will deal off of that. I sure hope so! Censored

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I have heard lots of positive feedback from Super Flow owners and people who have used them. Not as much from the Mustang people. I have to weigh out the large cost difference. Right now I am leaning in the Super Flow direction. I have not heard anything good about the Dynojet, and have not looked into them for that reason.

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Let me know how things go for you.

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Mark

IMO, while the dynojet is not perfect, it is repeatable. Yes, more load would be better, but the price, simplicity, and fast hookup make the dynojet pretty handy.
Really it's just price. The hookup is the same and the SuperFlow is only as complicated to use as you want to make it. But in the end....if your not going to use all of the features they may be no reason to buy them. So DynoJet may be the answer.

Dyno Dynamics Works Very well (Load Cell)
Less Traction Issues than a non-knurled mustang dyno

Dyno Dynamics Works Very well (Load Cell)
Less Traction Issues than a non-knurled mustang dyno
Dyno Dynamics?
Please edu ma cate me.:D
Is that the one that bolts directly to the rear axle flanges? If so, I heard they can't handle the torque of a "Juice Gripped" Duramax. :D

Dyno Dynamics?
Please edu ma cate me.:D
Is that the one that bolts directly to the rear axle flanges? If so, I heard they can't handle the torque of a "Juice Gripped" Duramax. :DStrange.... the 1400HP turbo stang drag car had no problems on it....:ro)

Never had any tractive problems on that dyno.

This is a video shot on a Dyno Dynamics Dyno..... Right at Piers Diesel Research!





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http://www.dieselplace.com/forum/showthread.php?t=17569


http://www.dyno.com.au/cdyno_index.htm

Strange.... the 1400HP turbo stang drag car had no problems on it....:ro)

Never had any tractive problems on that dyno.

This is a video shot on a Dyno Dynamics Dyno..... Right at Piers Diesel Research!



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http://www.horsepowerheaven.com/features_all/2004features/daldyno04.wmv (http://www.horsepowerheaven.com/features_all/2004features/daldyno04.wmv)The link doesn't work for me.

Regarding the torque holding capabilities. I'm just passing along info that someone gave me at the PRI show. Perhaps it is an rpm thing, meaning the load is induced via hydraulics IIRC on that model, if so perhaps it gains load capability as a direct result of the rpm that is used.? It can handle the torque of the stang at 6,000 rpm but not at 2000 rpm.

Darn link was pulled... PM me your email trip and i will try to send it to you.

Some of my vids are posted somewhere.... on the dyno... no slippage.

You are strapped down from the axle directly to the dyno. (Bigger HP guys were also tethered to another truck... funny they did that to me this year too:eek: )


BTW IIRC the DynoDynamics utilizes Magnetic Eddy Current to provide load, not hydraulics.

Now we're getting some feedback!:) Thanks guys. Trippin, I should have said "tied" for second place was the Superflow, as I really don't have a favorite between them and Dynojet. The demo for the Mustang did not go perfectly smooth for the guys, but I'm giving them the benefit of the doubt. Of the dyno owners I've spoken with, nobody really seems to be "overjoyed" about actually putting one in, regardless of brand. It seems they all wish they could keep it a little busier. Sure, it would be a cool toy, but I need it to make money too. I guess I'm going to keep looking and listening to see if this is worth getting into. Thanks for helping me make up my mind. Tim

I think I'll use the lack of interest on this subject as an indication to save my money on a dyno!:( Thanks to the few who offered some insight. Tim

Really it's just price. The hookup is the same and the SuperFlow is only as complicated to use as you want to make it. But in the end....if your not going to use all of the features they may be no reason to buy them. So DynoJet may be the answer.

Well, there aren't variables with the Dynojet other than software DA correction. The "setup" is the same for all vehicles and all testing. Not as operator dependent, and tends to repeat from installation to installation. Andy's doesn't count. ;) Nor Morgan Motorsports. (deceised)

When I got my 2000 Camaro, I dyno'd it at Brother's (Mustang Shop), Extreme (dune buggies), and R&D in Gardena. Highest pull 313, lowest 310. Seriously. 12 pulls total combined. I was sold.

With the Vette, we dyno'd it Kentucky and California, and repeated pretty well too.

I've seen Mustang numbers ALL over the place with other gearheads. The one time I did the Vette on a Mustang, the number were STUPID. Nothing to do with the actual engine operation. Peak HP RPM off the scale, too much torque IIRC. Meaningless. Did not match actual engine performance characteristics. Operator error.

As far as the "load" thing goes, load is dynamic. It's more or less depending on gearing and what the vehicle is doing at the time. So you can get the load to match for a certain condition, at other ground speeds in other gears it will change.

With the Dynojet, you can use "dumb" operators. For a business that sets up "Dyno Days", your profit per hour increases due to the lower capitalization, and the ability to use "non-tech" personnel to run it.

If I had to do serious testing personally, I'd rather have a Superflow. But if I had to run a rental dyno, I'd do the Dynojet from a financial perspective.

It's like my shop. I don't have the fanciest equipment, I have machines that get the job done. It's more profitable that way.