I have been driving my evo for about 2 months now. I dont know how much it is running though, becuase my electronic boost controller got stolen. When you give it wot or even hard accel. The turbo spools up and pulls really hard until about 4500 - 5000 and then it seems to almost cut out and not pull nearly at all. I have never owned or driven a turbo charged car before this. Is this the way a turbo car should feel? It just doesnt feel right, I think it may be partially due to my 720 cc injectors, which I am getting replaced with smaller ones shortly. It could also be my crappy intake, but I doubt it. It could also be my full exhaust, is it moving too much air? What I am gonna do is just buy a hallman pro MBC and then a boost gauge and set it. I dont know what to set it to however. Thanks

 

no tune? maybe fuel cut

 

Wow dude, you should really get a boost gauge or something to see how much you are boosting.

 

+1. Sounds like the boost is almost just dropping off totally at 5k. As far as your mods dont get rid of anything. Keep your 720 injectors. Best bet would be to get a boost gauge, get a manual boost controller and then get retuned and you should be set.

 

So I just need to set my boost? What should I be setting it too? I was thinking about getting my ecu reflashed from dyno flashed. They seem pretty good, do you think that is a good option?

 

Well get a boost gauge first. The car may already be tuned, but you said your boost controller was stolen so first off what are you using (if anything) to control boost? Its not done by the ECU.

 

the faceplate to my blitz controller, so the actual box that controls the boost is still in the vehicle. I just dont know what it is set at, and I am unable to change the boost settings.

 

Since you have a 2003 w/9.8 HS, I think your boost comes preset from the factory at 18-19.5, give or take. If you should switch out the 9.8 for a 10.5 HS and replace the O2 Hsg. for the Ebay version and get rid of the cat, you'll lower EGT's allowing you to raise the boost a couple more pounds.

First things first though. At present you have no idea how much boost you are making. So, get a boost gauge. Get an MBC. And make sure the boost lines are all routed properly.

 

+1. Check all your lines. If you still have the controller in your engine bay im sure you can call up blitz and order a new controller from them. It shouldnt cost you more than 300. Maybe a lil more or a lil less. Might be something to check into, but till then go to autozone and pick up a cheap autometer boost guage. Cost 50 bucks and will take 30 min to an hour for an inexperienced person to install.