I was just looking at other dynoes from people and they seem to be nice and smooth ,mine goes up and down . Here's some #s tell me what you guys think.
1995rpm @182 then goes down 3000rpm @167 then up 3600rpm @191 ! 4100rpm 181 then up at my peak rpm 4700@192.44 these are just torque #s estimated as close i can.

 

hmm... gotta graph?

Could be bad MAF, detonation, misfires...

Did you do more than one pull, does it happen at the same spots if so.

Did the dyno shop smooth the curve?

 

I dont have a scanner.
I was at a 350z meet and they let me quickly butt in. I did get three pulls but they were in such a rush they just printed out the highest run. So to you it defenetly looks like somthing is wrong?

 

well something isn't adding up. I highly doubt you are making 182 ft-lbs at 2000 rpm. That's closer to most peoples peak torque. I'm assuming you have just typical mods of intake and exhaust or so. 167 at 3000 may be close but still sounds a little high unless you have a lot of mods. 4100, and 4700 are a little closer, but again seem to high unless you have quite a few mods. If you car seems to drive and run normal I may chalk it up as a bad dyno pull. If you think it may be a problem, you could get another dyno done with a place that will take it's time and do everything properly. What kind of HP numbers did you get at those spots and at peak? What mods do you have?

 

68.5 whp @1995 rpm,154whp @3000rpm,167whp @3600rpm, 172whp @4100rpm,182whp@ 4700rpm. Mods in sig ,with peaks

 

Well, I don't know man. Something is screwy. I wouldn't worry about your car unless something seems wrong. I would get a new dyno if you want accurate numbers, especially in the lower rpm area.