alping45

iTrader: (1)

I've been running 5* 93 performance tune for about 2000 miles, it is amazing. But in the last few hundred miles I have noticed a drop off in both power and fuel mileage. When I first loaded the tune I was seeing around 19.25psi boost, now I hardly break 18 and usually hover around a max in 5he low 17's. Stock i was seeing around 16.Truck has 3500 miles total. A 2psi drop in boost is huge!
What gives?

Takeda

Unfortunately you can't take it to your dealer with your problem.

alping45

iTrader: (1)

Thanks for rubbing it in buddy

TNHItter

What did 5* say?
They would be your best option for some resolution to your problem I would think?

Lockelamora

iTrader: (1)

I agree, get in touch with the guys who make the tune, they might have seen this before and can help you out.

alping45

iTrader: (1)

I though so too, I already emailed them, and their entire response was "18 sounds perfectly normal".

This is not the first time they have given me a short winded, single sentence response to a detailed question.

https://www.f150forum.com/f118/3-5-e...3/#post4295820

I even wrote back with a follow up question asking why I am getting almost 2psi less than before, and no response.

While their tunes are great, I think I'll go Livernoise next time for the customer service.

2.7Ecoboost

How much can the turbo safely push? Have you done your first oil change?

alping45

iTrader: (1)

Not certain but I've read the Livernoise tunes are getting up to around 22psi.

I just changed the oil at 3k with synthetic blend. I believe I started noticing the power loss just before then.

alping45

iTrader: (1)

And I'm not saying the truck is a dog, it still has way more get up and go than stock, but just not as beastly as it was in the beginning with the tune.

2.7Ecoboost

I've said this in another post... I was at the dealership and the service manager said the Ecoboost motors that he replaces are almost always motors that have had tunes run.