[Celtic1982citleC]

Originally Posted by Shawn96VR-4

My ProBoost MBC was rock solid but I never ran it near 30PSI like you did. Sounds like your on the stock turbo so why not just yank the line and let it run wide open? Curious if that WG caused any of that given you had the MBC WIDE open. That's way too much boost for methanol for my taste but you have more experience with it than I do. Did you have to pull timing to get that boost?

Anyhow, if that's about average then I am curious why the STi did lower than expectations? Most (I think all actually?) Mustangs notoriously read low. We all know that but that's very extreme if that dyno has no setup/operator problems.

Also, interesting the AFR issues with the flashed ECU. One of the very reasons why I will never go with any flashed ECU. Why didn't you know it had WOT issues before you spent all that time and money going to the dyno?

I dunno...

I'm glad your ProBoost MBC is rock solid. Unfortunately my Forge currently is broken and has to be replaced. I'm sure John Estrada who's been tuning cars for 10 years knows what he's doing, so I entrusted him when he tuned it to 30psi. I have a Forge WGA also, Shawn, which allows for the high boost with (what is supposed to be) no problems. There was no operator error, the MD we ran on was just (for whatever reason) calibrated very low. The owner of IMP and operator of the dyno (Joe) even told us that. John (JestrTuning) said the correction from IMP's Mustang Dyno to the Mustang Dyno that he operates on out of his shop in Orlando, FL is 55%. Take it or leave it, that is what it is. If anyone has a problem with the numbers or correction factor, I urge you to goto IMP and put your car on the rollers and prepare to be embarassed. Travis' car wasn't "lower than expected" he just has a boost leak which became obvious when John maxxed out the boost and showed this to him that his car would not go past the 16.5 mark no matter what he did. Time to keep reading to see what I have to post next.