Hey all I finally got my FR 4:10 gears installed, had Ford do it since they have the "experts". Now everything seems good, no whining, etc but when you are going exactly 60 mph there is vibration and its easy to detect because it actually tickles your eardrums lol. However, below 60 and above, the vibration isnt there... any ideas????
Dr BlackStang
call up ford where you got them installed...they have to guarantee the install so they'll check it out...
I'm going to go with beef on this one. The Stingers are loud. And now that you have 4.10's, you may have a drone at 60 that you didn't experience before due to the higher rpm.
ya zip, a lot of ppl say that the 4:10's don't raise up the rpms that much, but they do raise them. it would make sense that, i'm guessing, around a specific number close to 2500 rpm give off a high pitched cabin noise
Hi somebody know what is the top speed with the 4.10 gears, i want the 4.10 gears in my car but im not sure 4.10 or 3.90, i want a good top speed, inthe stock mustang 2006 and gears the top speed was 150 mph at 4500 rpm in 5th gear cause it has a governator, but with the 4.10 gears some body know what is the top speed at the 4500 rpm in 5th gear?
top speed will still be up pretty high, you dont need to worry about that, you just get there alot faster with 4.10s
with 4;10s, you can still almost hit 200mph in 5th gear, but you will almost never have the power to do so...
op- check for the noise in other gears at the same RPM as ur at when your doing 60
more likely than not is the RPM and a drone from your stingers
more likely than not is the RPM and a drone from your stingers
Like beef said its not a governor. There is a rev limiter in our car, it has nothing to do with top speed, per say.
The reason why you top out at 150 doing 4500rpms (or whatever rpms you said) is becuase thats what the power your putting down can push the weight of the car against the air resistance.
For example lets look at this dyno of a bolt on stang.
You can see that at 4500 rpms its making about 270hp. so lets 270 hp can only push the 3700plb car with the wind resistance on the big flat nose of this car 150 that day. Now lets say you have 3.55s in your stang i forgot to look at the year of your car. If so, and you went to 4.10s you would have probably been turning 5000 rpms at 150 in 5th which means you would actually be putting 290hp to the wheels at the same speed you were going and would have probably had enough power to go a few mph faster. You wont top out 4.10s till like 190.
4.10s are not going to hurt top end in this car they will help it, under 190 that is.
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Guys that talk about 4.10s running out are usually talking about not wanting to go to 5th in the 1/4. Or some of the pros running 3 speed tranys have to go to higher gears as their speed gets higher.
The reason why you top out at 150 doing 4500rpms (or whatever rpms you said) is becuase thats what the power your putting down can push the weight of the car against the air resistance.
For example lets look at this dyno of a bolt on stang.
You can see that at 4500 rpms its making about 270hp. so lets 270 hp can only push the 3700plb car with the wind resistance on the big flat nose of this car 150 that day. Now lets say you have 3.55s in your stang i forgot to look at the year of your car. If so, and you went to 4.10s you would have probably been turning 5000 rpms at 150 in 5th which means you would actually be putting 290hp to the wheels at the same speed you were going and would have probably had enough power to go a few mph faster. You wont top out 4.10s till like 190.
4.10s are not going to hurt top end in this car they will help it, under 190 that is.
Guys that talk about 4.10s running out are usually talking about not wanting to go to 5th in the 1/4. Or some of the pros running 3 speed tranys have to go to higher gears as their speed gets higher.
I will have to check in my Predator. I am almost positive I disable a top speed limiter in there.
Its deffinatley not an rpm limiter in this car when it comes to speed. There is a rpm limiter but stock its at 6250. It would have to be some other type of limiter.
well i dont know. In my brochure from ford its says drag limited to 147. Maybe there is a governor, maybe your tune came with it. I dont know. Actually let me rephrase that, your tune had to have came with it at this point if your running a supercharger.
i would think you would feel a limiter, i have felt cars with fuel cut offs at 120, you know it when you feel.
Stop doing 150+ on the public roads. This car cant really handle that speed effectively. If one thing is off, your going for a wild ride.
well i dont know. In my brochure from ford its says drag limited to 147. Maybe there is a governor, maybe your tune came with it. I dont know. Actually let me rephrase that, your tune had to have came with it at this point if your running a supercharger.
i would think you would feel a limiter, i have felt cars with fuel cut offs at 120, you know it when you feel.
Stop doing 150+ on the public roads. This car cant really handle that speed effectively. If one thing is off, your going for a wild ride.
How much rwhp you makeing with that vortech? I put down about 390 to 400rwhp the last time i hit less then 150, i can tell you that the car was outta steam, it wasnt a governor.
In my experience you feel a governor. its not like the car just gets to 120 and stays there. In the cars i have felt its either cutting the rpms, which you feel, or its cutting the fuel which you feel. the car will studder, drop speed and rpms, pick them back up and then drop them again.
If its just hanging there, then sorry she is just done.
I dont know what the stop speed of a charger is, i know the last time i was at 145+, it was against a charger srt8 modded, 5 times from a 80 roll, i gave him a car to start, walked around him each time and was a car ahead at like 145. but at those speeds im not looking down. and any bend in the road my stang didnt feel to stable up there that night, and i have a lot of suspension mods.
In my experience you feel a governor. its not like the car just gets to 120 and stays there. In the cars i have felt its either cutting the rpms, which you feel, or its cutting the fuel which you feel. the car will studder, drop speed and rpms, pick them back up and then drop them again.
If its just hanging there, then sorry she is just done.
I dont know what the stop speed of a charger is, i know the last time i was at 145+, it was against a charger srt8 modded, 5 times from a 80 roll, i gave him a car to start, walked around him each time and was a car ahead at like 145. but at those speeds im not looking down. and any bend in the road my stang didnt feel to stable up there that night, and i have a lot of suspension mods.
You probably can. but the fith gear in this car is like over drive. Like you said you were only at 4500 rpms, what power are you making there with that vortech? im sure i could have gotten some more mph outta my car, but it climbs real slow at that point becuase of how high 5th is.
Not to mention my speedo stops at 145, so how do you know you werent still gaining speed? its not gonna pull that hard in 5th with 3.55s
Not to mention my speedo stops at 145, so how do you know you werent still gaining speed? its not gonna pull that hard in 5th with 3.55s
i think he has a gps...that tracks your speed by satalite. i use my gps more than i do my speedo
I find that my Mustang is pretty stable up until around 135-140 mph.....after that, it seems to become a noticeable increase in effort to get it up to 150, and in effort to keep things stable. Not hugely so, but noticeable.
Were one to attempt this on a regular basis, and/or push speeds over 150 mph, I wouldn't even consider doing so on the stock suspension and with the stock brakes. I would never attempt this without each and every time verifying that my tires are in good shape, free of debris, and properly inflated.
Traveling at these speeds is no joke. You hit something at 150 mph, you don't worry about how bad you may be hurt or how the car may be smashed. The car explodes. I don't mean necessarily in a fireball. I mean disintegrates. In to many small unrecognizeable parts.
As for you, you become goo. There is nothing left of you to bury. Your parents family, and friends won't even be able to have an open casket, because they will be scraping you off the highway with a shovel. Literally. How do I know this? Because I've personally scraped guys like you off the road before. With a shovel.
It will only be through the grace of God that you don't hit another person and take them with you, thus causing their family a lifetime of grief and pain that they will never forget.
But hey, knock yourself out. See if you can go for 200.
Were one to attempt this on a regular basis, and/or push speeds over 150 mph, I wouldn't even consider doing so on the stock suspension and with the stock brakes. I would never attempt this without each and every time verifying that my tires are in good shape, free of debris, and properly inflated.
Traveling at these speeds is no joke. You hit something at 150 mph, you don't worry about how bad you may be hurt or how the car may be smashed. The car explodes. I don't mean necessarily in a fireball. I mean disintegrates. In to many small unrecognizeable parts.
As for you, you become goo. There is nothing left of you to bury. Your parents family, and friends won't even be able to have an open casket, because they will be scraping you off the highway with a shovel. Literally. How do I know this? Because I've personally scraped guys like you off the road before. With a shovel.
It will only be through the grace of God that you don't hit another person and take them with you, thus causing their family a lifetime of grief and pain that they will never forget.
But hey, knock yourself out. See if you can go for 200.
No governors on any production s197 mustang.
To the original poster if you had RPM limitation at 4500rpm, you would know it, not think it. Especially with a blower dumping all that air and fuel down into that motor. Your car is just running out of steam and simply cannot cut through the wind to go much faster than it is. If you want to test, take the car out when there is a tail wind and you will pick up 2 or 3 mph which will prove the car simply can't do it on it's own and point out your not "governated" all in one pass- had to make fun there. A blown car being limited in a rev limiter application makes a god offul sound when it goes into effect. You would kick this thread off with something like "my **** is broke, don't know what's wrong".
Cut the wind out from under that thing and you will gain a few mph.
I've been 176 according to my gps and the car felt horrible, needs more downforce in the rear for sure a cross wind in these bricks will put you off the road for sure at those speeds. It also takes far too long to push these shoe boxes up to those speeds as 5th gear is as 07 said basically overdrive.
To the original poster if you had RPM limitation at 4500rpm, you would know it, not think it. Especially with a blower dumping all that air and fuel down into that motor. Your car is just running out of steam and simply cannot cut through the wind to go much faster than it is. If you want to test, take the car out when there is a tail wind and you will pick up 2 or 3 mph which will prove the car simply can't do it on it's own and point out your not "governated" all in one pass- had to make fun there. A blown car being limited in a rev limiter application makes a god offul sound when it goes into effect. You would kick this thread off with something like "my **** is broke, don't know what's wrong".
Cut the wind out from under that thing and you will gain a few mph.
I've been 176 according to my gps and the car felt horrible, needs more downforce in the rear for sure a cross wind in these bricks will put you off the road for sure at those speeds. It also takes far too long to push these shoe boxes up to those speeds as 5th gear is as 07 said basically overdrive.
go over a bump at 150+ and you feel the hole car float, stock suspension lifts like crazy on almost every production car. Fastest i been in a car is 167 was a single turbo supra older style and it was mine, the hood latch failed,the hood flew back snapped over my car, and smashed my windshield, scary stuff at those speeds. if you are going for 150+ do it safely take precautions, ie hood pins, suspension etc. and yes tuners have a top speed limiter option ,on and off, and it doesnt do ****. once your over 130 it all looks the same i have been near 200 on my full bolt on r1 tuned its no joke one slip and its is nothing but ground meat. go 1/4 mile not top speed if your in mexico go to the designated areas like the texas mile down there so you dont kill somone. my auto 05 gt hit 152 by the gps bonestock
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