3" down pipe and full exhaust system... and the thing boosts to 14Psi (stock gauge) and it wont pull... It runs like shit. I should have left the 2 1/4 on there. At least it ran better. What is going on with it? I have a super 16G... 550's and upgraded fuel pump... why wont it run right?

 

well the ehaust couldnt really have messed up anything by itself. But maybe when u were installing it, u forgot to hook up a sensor or something little like that. With ur new exhaust ur car should have been plenty faster. But if u really think it is the 3" system, put ur old one back on, and see if that fixes it. If it does, ur car is a freak.

 

+1 make sure your o2 sensor is connected

 

Are you using any type of fuel computer, and if so did you retune it for the new exhaust?

 

need more detail

 

possibly boost leak make sure all sensors are tight and all gaskets and bolts are on tight.and get a real gauge that stock one if shit.

 

And your gonna run 10s by the end of august like you posted in the topic about shep? Riiiiiiiiight

 

LOL true, i still cant belive he call sheps car weak

 

is it awd

if so ill buy ur down pipe

 

I put on a 2G mas, took off IC pipes made hard pipes, and then put them back on. Made sure that all my sensors were in then I unhooked my battery for a while and put it all back togther. I put the cat back on (Idunno it seems to like it) It runs STRONG. No more wheel hop like with the 14b . (can't get enough traction for wheels to hop) the wheel wants to torque to the right all the time 1-3rd. I have to make sure its pointed in the right direction or Ill crash like I almost did the other night on the test run. It pulls REAL hard until about 9psi (not to be confused with 9psi on a 14b) 8psi feels like 15psi on an 14b on this turbo. Then it seems to let off. My guess is... it was one of a few things

Opening up the exhaust eliminated back pressure allowed for more air to enter the engine. Having a bigger turbo without a matching IC made the car retard the timing because of the increase of hotter air/volume. Which means I need a FMIC

Boost leak? Well the IC pipes had to go (stock) I made hard pipes to improve air flow. I did not bead the ends on the pipes yet. So it may be leaking.

Dissconnecting the battery. Well after adding all of the stuff I did over the past few days I felt the ECU may have need to be reset with new values. Everything seems to be runnng a bit better, but... I wanna get it past 9psi and see what it runs like.

On a positive note on my test run today I ran a G35 coupe from a stop... I spun like a monkey in second but when it hooked up... that G35 was a distant memory. I have bugs to work out, but things are looking much better.