Hey guys my MR 9 is supposed to have roughly 380/380. At the last WRC meet they had a mobile dyno and it said it only had 286. My first thought was they just didn't know what they are doing. Took them almost half an hour to set up the dyno and they burnt the hell out of my clutch. So according to them nearly 100 whp has escaped. But I'm going to give them a little bit of the benefit of the doubt since lately my car hasn't felt as spunky as it used to. Or maybe I've gotten too used to the car and it feels mundane now.

My question is what would/could cause my car to lose so much power? I recently changed my plugs and just did a oil change. Could it be that the BOV isn't holding the boost as it should? or could the turbo be going out and if so how can I check that? Any input would be great thanks EvoM

 

Did you check for boost leaks before you got it tuned? almost 100hp difference is a little big man... Have you been dynoed before? what modifications have been done to the car?

 

First off, what dyno did you use to get 380/380 and what kind did you get the 286?? Secondly, just as stated above, do a boost leak test. There's no way you are going to lose 100 wheel just by dynos. And it only makes sense that you had it done at the same boost level.

 

boost leak test

 

I will do a boost leak test this weekend when i have free time. Curent mods are 3in turbo xs turboback with test pipe, forge BOV, 880 injectors, 255 walboro fuel pump injen hard pipes exedy stage 2 clutch and tuned on E85. Forgot what type of dyno it was tuned on and the dyno they used this weekend was a dyno jet. I think they are clueless of what they were doing. First off they forgot the put down my E-Brake on the first run which i almost cursed them out for. But i ddi noticed my BOV going off like crazy during the pulls so maybe my BOV isnt holding boost like it should maybe? but when i changed out my plugs i went from the HKS to the NGK's