My bad I forgot to say my eco can surpass 120 I don’t even know how that’s possible lol . It’s completely stock as I’m aware . One time I went on the freeway and hit 137 and I let off but I’m confident it could hit 140 .
At least for the earlier models (pre-HPP, so 15-19?), regular models were limited to ~121, I believe, while performance package models were good for 145. I know the HPP reportedly goes to 155. I think Ford would determine the top speed first, and then equip them with appropriate tires.
Be patient. People are trying to understand more about your car to help you get to the real problem. Rarely can anyone diagnose one symptom without additional details.
The factory cold charge hose will with age become hardened and crack like you found out which will cause the loss of power due to low boost. It is advisable to replace both hot and cold side charge pipes with aftermarket aluminum pipes with silicone hoses to alleviate the issue in the future.
Pontiac had the same issue back in 93 when the new model Trans Ams were released. You could get them with or without the sport performance package which only consisted of either H rated tires and a chip limiting speed to 118 mph or with Z rated tires and a chip limiting speed to 155 mph. Even the salesmen did not know the difference, so we had customers buying a Trans Ams coming back complaining that their new car would only go 118 when it was advertised to do 150+. As a tech I would go look at the tires on the car and if they were only H rated had to inform the customer, they had to replace the tires with Z rated in order for me to legally install the 155 mph chip. Lots of unhappy customers needless to say. In 94 all Trans Ams came with the sport performance package and Z rated tires.
What temp is into the yellow and is that a selectable readout from the gauge selection in the cluster.
Correct. It's not the tires, as you say, easy to change tires. The speed limiter is based by model. The base ecoboost is limited because of lack of brakes, oil cooler etc. I know from experience that the brakes are adequate but quickly lose their ability to bring the car down from speed much past 100 mph. Others have stated the differential will quickly get hot when tracking and car will go into limp mode. So, I don't have an exact parts list or anything but brakes, adequate cooling of various fluids etc are the reason the speed limiters vary by model but with the base, I'm sure is set to right around 120. I'm also sure my base with fbo will go over 150 mph and with the 6 piston brembos and larger rotors on the front, it will now won't make you pee your pants at that speed when you stand on the brakes.
Yessir. It should be. The oil temp gauge, should give you a digital rendition of an analog display. Haven't looked at it in a while. But if its a hot day, and I'm out on the expressway doing WOT's that get me up to a hundred or more (which I pretty much usually dare not do, for reasons covered in this therad), I have seen the gauge butt up rights against the yellow/caution area.
I feel for ya! My 1st Mustang also had 88K on the odometer.
Doesn't sound like a non modified Ecoboost... Your factory limitations or fail-safes may be altered. Can you post some pictures of your engine compartment, perhaps we can help you pinpoint anything that isn't factory stock or non OEM. What type of exhaust is on your Stang?
