2008 Mustang Bullitt - problems with 91 oct tune

[bullittLC]

I have a 2008 Bullitt mustang, which is just a gt with ford racing cold air intake and some suspension work. I have Long tube headers, high flow cats and an x pipe. I installed the 91 octane tune and noticed from 1k-2k rpm i had almost no torque. in other words it took a while to actually get the car moving. I never had that problem with the stock tune. i called tech support and was told it was because of the headers, but yesterday i noticed the problem all the way up to 2500 rpms, and today its all the way up to 3500 rpms. Yes i have the latest update on the U7145. Can you guys send me a revised tune or something? its very frustrating to drive around town with no low end power. What could cause this problem and what can be done.

i attached the stock tune as well as the 91

[mikel]

You really need a custom tune for the longtubes my friend, you have moved the O2 sensors, and thus there are many changes that need to be made to make it right...

[bullittLC]

I would not mind getting a custom tune. In fact i called five different places within 300-350 miles from where i live and only one could help me. The others have either sold their CMR licenses to someone else, won't answer the phones, or I just get the "phone is no longer connected" recording. The one guy that said he could help is in tucson but its about 500 dollars for that. Is there a reason that the car seems to be losing power progressively through the rpm range?

[mikel]

www.diablocustomtuning.com

click on the ford link

it is losing power as a result of the timing being off now due to the improved exhaust flow, and scavenging effects, as well as the fact that the O2s are not seeing things in time...

[bullittLC]

Thank you very much for the help. I was almost starting to consider the "other" guys for a hand held tuner since they have free custom tunes for life, although i bet its only to a certain point. Its just a bit frustrating at times. Have you guys consider trying to a Good CMR dealer that does custom tuning in New Mexico/West Texas?

[bullittLC]

Thank you very much for the help. I was almost starting to consider the "other" guys for a hand held tuner since they have free custom tunes for life, although i bet its only to a certain point. Its just a bit frustrating at times. Have you guys consider trying to a Good CMR dealer that does custom tuning in New Mexico/West Texas?

[mikel]

I have a guy in the Houston area that can tune anything.

I believe there is also strictly performance out there too, no?

Whats your ZIP code?

[bullittLC]

The zip code here is 88005. Theres a lot of places that wont tune via email, they want to physically have your car for a few days to tune. The closest place is tucson and thats about a 3 hour drive. I wouldn't mind the drive but the price tag i do.

[mikel]

Well, I see what you mean.
i'm guessing Chuck Hawks was the one you got a hold of?
Also, try these guys:
Motiva Performance E
2420 Comanche NE Suite H-3
Albuquerque NM, 87107
(505)883-8388

The first link I provided to you does email tunes that I am pretty sure you'll be very happy with