I was hopin someone out there could help me out and give me an estimate on how much ill gain with a tune on my 03 evo.

the parts on my car are listed here:

-taipan xp turbo back exhaust
-injen upper intercooler piping
-injen lower intercooler piping
-injen intake
-APS front mount
-upgraded buschur racing 20g turbo
-megan racing exhust manifold
-greddy turbo timer
-greddy boost controller
-s-afc
-greddy universal bov

thanks so if u have any info on how much hp and torque ill gain id appreciate if u wud leave me sum info. thanks alot

 

WOW... you upgraded all that without getting a tune?

To asnwer your question, well I can't answer your question but it would be a pretty substaintial improvement. Tuning makes move of a difference than the mods themselves.

 

By the way, I hope that you haven't been driving it without at tune especially with the upgraded turbo. If so, I can't imgine what you AFR's would look like.

 

 

Stop being so dense.

If the car drives without a "tune" without any CEL's, the AF ratios are withing factory fuel trimming abilities.

A tune will get AF ratios on target, but it doesn't mean he's not safe driving the way he is.

 

AF's are a start, but your power is gonna come in your timing. Get someone that knows how to dial in timing. Use resonable AF's for thermal management NOT power.

Good luck, the right tuner will net you some good gains, although an AFC is less than ideal for the amount of mods that you have.

A good custom flash or Autronic, AEM might be some options to consider in your case

 

lol..that doesnt mean he isnt leaving a ton of power on the table

you can be knocking and have the ecu pulling timing all the time and still not throw a CEL

 

i got my car tuned at grd racing in illinois. i thought i wud have more power than only 313 whp!!! b.s.

 

it's hard to tell alot depends on what dyno had my car on a few diffrent types of dynos always diffrent!and all evos are not the same some are weak from the factory.so the only way to tell is to get on the dyno!

 

Your original post was a little strange....cause you listed a whole bunch of things that are irrelevant to "tuning" a car.

A lot of it depends on who is tuning the car.
Personally I think AFC's work like butt. I don't know why you'd go and spend money on one if you can easily use ecuflash and not some piggyback delayed signal conditioner.

Your peak boost has a lot to do with power. Simply having a boost controller isn't a mod. It's a substitute for a stock boost controller. You need to specify what peak boost you were running.

 

boost set at 22.3 lbs