My dyno graphs.....

[paulgtt]

Hi guys,

Took my car to a rolling road day on Saturday and came back with these results.





Now the dyno chart in the history shows 394bhp and 390lbft but I don't have any AFR or boost graphs.
The guy said its running far too rich and this is loosing power as a result, also the torque and boost seems to drop off quite quickly aswell, could this be linked with the overfuelling or is it more than likely a boost leak?

It was mapped by MG Autos on an Evo 7 ecu, it drives fine and pulls hard and I haven't noticed any loss in performance since iv had the car, but iv only had it around 3 months!

Any thoughts welcome

 

[RsvRob]

I hope it's not a 4 engine!!!
Why is the boost dropping so much. Your losing 7psi from peak to 7k rpm!!!

 

[paulgtt]

No, its a fully forged 8 engine!
Not sure on the boost,im guessing a leak from somewhere but it doesn't seem noticeable when driving it.

 

[RsvRob]

That's a bad leak at 0.5bar drop and you'll be losing a fair bit of performance.