Is there a website where I can find the closest place to take my truck to have a real dyno run done, on an Eddy Current Chassis Dyne not a Dynojet. I have checked around all the shops in the area around St Louis and they all have f'n Dynojets. If not can everyone please post where they had a chassis dyno done at, and hopefully there is one close enough to me to have a run done. Not that I wouldn't mind going to FL to see Paul and Tim at Razor's Edge, but 1200 miles and 12-14 hrs of driving each way just to have my truck dynoed seems like a little much .I will appreciate any responses.

Thanx,
Bill

 

Why don't you want to use a Dynojet?

 

Here is Superflow's locator:

http://www.superflow.com/TestCenters....html#Missouri

It(some models--ask when you call) offers both Eddy current and inertia-type dyno pulls on the same dyno.

Dan

 

Sal, from what i've read it sounds like with a dynojet I could make up my own numbers off the top of my head and be just about as accurate. I could be wrong and, since a lightning tuner has taken offense to what i've said, i'm sure i'm going to get a lecture. I would actually be intersted to know how many people think they are in the 400/500 club, but having dynoed on a dynojet, are actually no where near that. Thanx for the info Dan, as usual you are on top of the things that I find important to my truck .

Thanx again,
Bill

 

Bill give me a call.

Andy

 

Bill, I know who you've been preached to from about dynos, so I know why you have that outlook on Dynojets. I don't want to get into a debate over it, because dyno debates are like best chip/blower/pulley/filter kit debates. But let me say that there is nothing wrong with dynoing your truck on a Dynojet. As a matter of fact, a Mustang 1750 dyno (their popular car dyno) and the Dynojet 248 are VERY similar. The units are physically almost identical except one is red and one is blue. They both use inertia rollers (Mustang has twin 50" and Dynojet has twin 48"). The Mustang uses an eddy current brake, and the Dynojet uses a compressed air brake (with the Load Trac option). The cool thing with an eddy current dyno like the Mustang is that since the load is applied electrically, the dyno can measure the load, and from that it can still read power numbers under load, if that's what you are after. With the Dynojet (with the Load Trac option) you can load the vehicle like the Mustang, just not take any power readings at that point.

There are benefits to both dynos, and again, these can be debated all day. Just don't think that Dynojets are "bad", because they are not. Some of the worlds best tuners use Dynojets, NASCAR uses Dynojets, many motorcycle tuners use Dynojets, etc etc. And if it means anything, I have a dyno coming, and yes it's a Dynojet .

 

Sal, you had me right until the end where you said you can load the vehicle just like a mustang dyno but you can't take any power readings at that point. How is it helpful to be able to load the vehicle but not be able to take any readings ? Or is that just hp readings and it will still read a/f numbers and other useful info. I just want to be sure my truck is running safe on my aggressive program with accurate real world numbers and not have to worry about melting anything.

Thanx,
Bill

 

Bill, our vehicles weigh about 4800lbs. The rollers on a Dynojet are 3000lbs. When you make a pull on a Dynojet, you are subjecting the truck to less load than when it's actually driving. With the Mustang dyno, you can add that load back in. That's about the only difference. And the only place that is going to show up, is in hp numbers if the Mustang operator decides to make a pull with the load on (not everyone does). Some people say that the extra load can be used to help tune drivability issues. That is true, but at that point you are not measuring HP anyway, so you can do the same thing with a Load Trac Dynojet. And if the Dynojet tuner is aware of the apprarent load difference, then they can make the proper tuning adjustment for it anyway.

So really, it doesn't matter much if you use a Mustang or Dynojet. Both are great dynos, both will measure your power. ANY dyno will properly measure differences in tuning or parts changes, and that's the most important thing. If you are really looking to dyno your truck with the exact precise load on it, then seek out a Mustang dyno. But honestly I don't feel it's worth the extra driving of passing by a closer Dynojet. Just my .02.

 

Dynos are just good tools. Like any tool they have limits.

Just like Snap on, Matco and Craftsman, they all have fans and detractors. But also just like Snap on, Matco and Craftsman they all can get the job done if in the hands of a person that knows how to use them.

As I understand it NO Dyno actually measures HP. They measure Torque and Calculate HP based on RPM.

Torque is the twisting motion that the wheels exert on the drum or the ground...
My $0.02
Doug

 

Sorry, but they dont.

IIAA ASI VMF AWAJ

MALFPIACTI

 

This is the Dyno at Ultra Motorsports. They are the 1,and 2 truck series and the 7 car in winston cup.

 

And where does your information come from? It appears that some may use them.

 

Thanx for the info Sal and others. It looks like the closest superflow chassis dyno to me is in Spring Grove, IL. Anyone happen to know of a mustang that is closer than this.

Thanx,
Bill

 

What's that gibberish? A new variation of pig-latin?

 

I don't see a 'locator' but you could use their '800' number and ask:

http://www.mustangdyne.com/

Dan