50mikey

So there is only 1 other dyno in town. It is a Mustang Dyno. They do not have the capabilities to make a custom chip though, and from my AFR chart i think i need to have a custom ship burned...since it looks like the computer is doing what it wants to.

stanglx2002

what computer do you have in the car?

Vfast i live in GA

vfast

buy yourself a pms or a tweecer rt..and forget the dyno to get a chip

CoolDenver

What is a PMS and a Tweecer rt?

Tims 88GT

it should be more like 305hp and 348tq

marx91

they are hand held tuners that piggy back your cars computer

El Verdugo

that's totally insignificant. the dyno is not like Farakhan and another is David Duke. dynos dont discriminate because of make. that's just rubbish. you can take your car to any dyno and they will all give you a number. now, whether that number is right or wrong, that is all based on the dyno operator. One should stick with one dyno shop if reputable. case closed.

El Verdugo

the dyno operator told you that it doesnt matter what gear you run in? Quick..... get your car, put it on a trailer, and take it to the next reputable, note the word... REPUTABLE, shop and get the work done there. Ask around where the next reputable dyno shop is and take it there.

As for why you should test in certain gears, here you go....

1st and 2nd Gear: There is a lot of torque in the vehicle drive-train. This high tq creates friction between various tranmission components. In this gear there is a high tq effort at the tire tread. This large tractive effort causes the tires to be bent up just like a dragster's tire doing a burnout or taking off from the line. So all the above conditions absorb a lot of power before it gets to the actual tread. So power is < peak, at the threads. This is why you want to test in a 1:1 gear ratio.

3rd and 4th: now on these gears there is less tractive effort being absorbed by the drivetrain conditions. The tires becasue of the this condition are not getting as bent up and distorted as in the lower gears. Because of lower TQ that the drivetrain is absorbing more power gets transfered to the tires, there for resulting in better WHP numbers. So this is reached when tested with 1:1 gear ratio and not in the lower gears. A good dyno operator shiould know this and test the vehicle accordingly.

Alberto

El Verdugo

Or perhaps one like a Diablosport, we tuned one for a Lightning and had some nice results.