mbarn83

I've never owned an Evo before so I am new to this forum.

I was bored one day and decided to buy an 08 GSR. After doing a little research, I bought a bunch of used parts from Craigslist and installed them.

I recently had the car tuned by IveyTune in NJ and was expecting to make more power.

Anyone know why my dyno pulls are so shaky? I was hoping to be in the 460 hp range. I am wondering if the hi-flow cat I purchased is clogged. It didn't look bad at all.

Comment away. Any info is appreciated.

Mods:
08 GSR
Full 70k service, new plugs, fluids, etc.
ID1000 injectors
Deatschwerks DW300C Fuel Pump
AMS fuel rail
AGP 3.5" FMIC
AGP Upper and Lower IC Piping
ETS v2 Cat back exhaust with welded resonator
High-Flow cat (don't know the brand)
Megan Racing Downpipe
MAP EF4 turbo
Injen Short Ram Intake
Cobb 3 port EBCS
Cobb AP v3

They told me that the car was safely tuned at 26 psi.

Kevin_White19

With a stock engine I wouldn't push torque above ~300lbs/ft. Plenty of people will tell you it can handle it (and it very well may) but when you're going around 150% more wheel torque than stock you're encroaching an unacceptable factor of safety for stock internals. To answer your question regarding power, if you up boost you'll up power but again then you'll be risking engine damage after a certain point. You can also increase rpm (power is a function of torque and rpm) but again this is not smart with a stock head and bottom end. You'll see great power gains from doing a cam, valve and valve spring job as well as porting and polishing the intake and exhaust ports because it will increase overall flow. An exhaust manifold may help as well. There are other ways to increase power but I'd have to guess 470hp is close to the limit for bolt ons and a turbo.

Edit: another member mentioned on my dyno post obviously a larger turbo and more fuel will increase power. Some have gotten the stock motor to 600+ so it is doable with fuel, cams, large turbo as a solid tune.

Kevin_White19

I'm not a tuner nor do I deal with dynos so take this for what it's worth but the "squiggly lines" are likely a result of the 0 smoothing factor.