Dynojet owners words!

synolimit

Sorry I have to. This is from the owner of Dynojet. Some have seen me put people down (and I'm sorry) but I'm only doing it to be accurate and I hate people cheating or trying to up a part. Let's all just do the same thing please and listen to the owner.

This is also important for comparing results at the same dyno shop, for example, here in Las Vegas our atmospheric pressure stays relatively consistent, but our temps vary from 38 degrees to 118 degrees. So the same car with no changes will certainly make less power on the hot day compared to the cool day, but applying the SAE CF allows us to make an “apples to apples” comparison. If you take anything away from the last few sentences, it would be to ask your dyno operator to make sure that he is showing you SAE corrected HP figures, and before I get off my soap box, I will say that there are certain Dynojet dyno owners who apply the “STD” correction factor, and that’s not proper to do. The STD CF is an older standard that yields slightly higher HP numbers, so don’t allow yourself to fall into the trap (just use the SAE CF!!).

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13 370z-

phunk

Or just compare apples to apples. The difference STD and SAE generally is not much. The Z world used to be all SAE going way back, I believe it was GTM that started the trend of posting STD graphs all over so everyone else just posted STD as well to keep it apples to apples.

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phunk

BTW when you are at the dyno shop, there is a drop down menu right there in the runviewer that allows you to view it in either correction factor.

You can just print it out or photo it in both STD and SAE, and then you have all your bases covered for comparison to whichever other Dynojet graph you wish to compare.

This also coming from a Dynojet owner, LOL. I bought one brand new several years ago but sold it to a local shop.

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synolimit

Can make enough though being NA. If boosted I wouldn't care as 1 psi would be the difference or 1 degree of timing. So many people though get confused though. Plus I like the sleeper numbers.

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13 370z-

synolimit

O I know, but no one ever shows the smaller one

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13 370z-

phunk

I agree completely with what you are posting.

If you looked back to posts I used to make in the Z33 world, you could see I was all about the SAE numbers myself. I would RATHER see SAE dynojet graphs everywhere I look. Unfortunately I knew that it would be a lot easier to just get on the STD bandwagon here and start using those, rather than having to either convince other shops to do the same or have to annotate all my graphs with a note like "and it would be even higher in STD!!!" LOL.

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Mitco39

Guys. We are starting to look at dyno's ourselves and I figured this would be a great place to ask.

How do you/did you like your Dynojets? The name is much more known up here, however many peers I talk to also seem to love the mustang dyno's (which are much much cheaper btw).

Ive talked to both owners and seen them both at SEMA last fall. Just looking for some real world experiences with them.

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2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

synolimit

Here's the rest if it helps.

http://imageftp.dynojet.com/CMD/Trut...Runs_Final.pdf

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13 370z-

Mitco39

Read through it and the only thing that concerns me is I want a 424LC. I want the ability to do more than just WOT runs on the drum. While reading that I did realize that with the dynojet I effectively get 2 dynos in 1 however. I would imagine you can turn off the brake altogether and just run the weighted drums only.

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2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

Mitco39

Essentially I know the marketing on both of them, been researching now for about 6 months. Just looking for shop reviews, any issues? how has support been? that sorta thing.

I am leaning to dynojet mostly because of their name up here. Guys want dynojet to run their cars and trucks on.

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2007 Chevy Duramax - EFILive Tuned By Me
2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me
The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her
My Build --> http://www.the370z.com/members-370z-...39s-build.html

phunk

I am glad you posted this because its supporting of what I have been claiming for years. That Dynojets are the only dynos where the operator cannot manipulate the numbers. I had one for several years and the 4 preset atmospheric correction factor options are the ONLY thing you switch around, and it says it right on the graph which it is set to, so that everyone can know.

All the other dynos, you never know what you are getting, so comparing them is impossible. Some dyno operators program in a "dynojet correction" to try and simulate a dynojet, usually making ridiculously high numbers, etc.

I hate to have say this, but this is the honest truth. Whenever someone posts a dynograph to a forum, if its not a Dynojet graph, I literally scroll right past it. I dont even look at the curve or numbers. As interesting and useful as it may have been to the operator/tuner on the dyno that made that graph... it is pretty much meaningless to the outside world for comparison because nobody knows how the dyno was even configured.

When it comes to buying a dyno. if you are only using it as a tuning tool.. a means of loading the engine while stationary for safe tuning.. then you have a few options. If you want a graph to compare with the rest of the US, then you want a Dynojet.

If you want a lot of outside business coming in to use your Dyno... dynojet. When I had my Dynojet it was basically up to me how much to use it... there was always people who wanted to use it. You could literally setup a one bay shop with a Dynojet in the ground and a little office and have that be your full time business once the word gets around.

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phunk

My Dynojet never needed any service ever. You just adjust the brake shoes once a year if the rollers slow down too slowly when you hit the stop button.

I think you maybe add a squirt or 2 of grease to the zerk fitting every few years, I dont know. I didnt have mine long enough to get to that point.

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FPenvy

oh look.....another thread of scotty bitchin about people not using the numbers he likes. what a surprise.

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

synolimit

O look, 25,138 posts with no life. Come on, get out there cupcake, you'll find him one day.

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13 370z-

RBfastback

glad u posted this, lately I've been feeling like there are all these n/a z's that have so much more then mine to the wheels either in there signature or in a thread an I'm like wtf I have the same parts...lol