Noob question, but the rig is getting some dyno time friday mourning, and I'll be doing it..
I have ran trucks myself before but it was as easy as hooking the straps to the holes in the frame, crossing the back straps.
Where do you put them on a J? On the twist beam on the rear? do I still cross the back? or front and back?
It is a mustang dyno with chains that come out of the floor at 4 points with ratcheting straps with a hook on the end.
Thanks for any help, Just don't want to look like a fool ya know? plus safety and what not.. watched some utube vids but couldnt see the straps
It sounds like he is operating the dyno.
I would do the cross on the wist beam, be careful of the exhaust and brake lines obviously. In the front I would say if you have hooks try for the sub frame, if not lower control arms, IF you have wheel clearance.
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The last few times I have tuned on the dyno, they have put the straps around the rear axles, but did not cross them in the rear.
On the front they crossed them after coming off the control arms.
I believe you cwant to cross the front because that is where the power is, verses the back.
FU Tuning
^^Yep, thats how mine was done
~2014 New Z under the knife, same heart different body~
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Addicted to meth wrote:The last few times I have tuned on the dyno, they have put the straps around the rear axles, but did not cross them in the rear.
On the front they crossed them after coming off the control arms.
I believe you cwant to cross the front because that is where the power is, verses the back.
correct, straight in back, crossed in front, chocked wheels obviously.
Thanks for the replies guys, exactly what I was looking for.
That evo dyno fail is just nuts, could you imagine the car fell the other way? Couple of lucky hombres..
Testing an all wheel drive car seems somewhat risky with all the torque and potential momentum on all 4 corners just kind of floating there lol
Thank god this is just a single axle dyno, you drive over the rollers, they raise up a couple inches, strap it down, run it up to 50km, re-adjust straps if needed and done.
But the straps crossed on the front makes sense, because the front wheels are basically "hovering" on the rollers and much more susceptible to move side to side during pulls, where as the back wheels are planted on the concrete, with lots of friction keeping the car from moving side to side, and the back straps seem to be mounted pretty far back, as if to hold the car back and not so much to control side to side movement.
Rich Grayo Jr. wrote:i'd think this is something the people operating the dyno would be taking care of.
There will be a "dynomaster" loading the car down and then giving me my numbers, but I'll be the dyno pilot, as well as pulling the car in, and strapping it down. I'm not paying anything for this privilege and I assume this is all at my own risk, I am a guest to this facility.
Just wanted to do a little homework since there will probably be others running cars and I'm already the guy wasting the dyno room time with his daily driven, lightly modded, automatic econo car, who at best can hope to put down what? 128 HP at the wheels? I just want to see how performance has held up to the years, really.. I know I'm going to be the butt end of some jokes, just trying to reduce that amount by half knowing what I'm doing.
to be honest, i think anyone serious about modding should do some consistant dyno runs fully stock, and each stage throughout their modding history. its a good way to see how different one car to the next STOCK can be, and what each mod REALLY does. Not just one, but an 'avg' of dyno runs each time. On the same dyno, every time.
Id like to before I put on any boost if I go that route. So you wont get any bashing from this end of the intranet
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