well my mazda miata just slows down after it hits 141 mph. i've added horsepower, a triple plate clutch. but still nothing. please help me. thank you in advanced.
why does my car slow down after a certain speed?
- Thread starter realestkilla
- 18 comments
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Sage
Staff Emeritus
- 12,533
- United States
- GTP_Sage
That's not quite so - You are supposed to use the Auto Setting to get a very general setting for gears 1-6, but you're supposed to adjust the Final ratio to fine-tune dealing with hitting the rev limiter on the straights and what not. In fact, because most cars come with appropriate Auto settings on them, I almost always just deal with the Final Drive ratio.
so i should but like a sports transmissoin and then change the last gear ratio? and btw ive added more horsepower but the speed doesnt change.
- 7,965
get your settings changed on the tranny, change the final ratio to a lower number, 1:1 is as fast as you can be so shoot lower to be faster.
I think this question earns the newb Q of the week (if we have that, and if we dont' we just made it
) no offense to realestkilla at all
Horsepower does give it a higher top speed.
Buy a car, leave it stock, and put on the best transmission, and set it up to the highest speed it can achieve.
Then buy a car, add all the horsepower upgrades, and the transmission, set it up to the highest speed it can avhieve. I'm 99% sure you'd end up with a higher top speed.
What good are lower numerical gear settings if you don't have the horsepower to get it there? (assuming your looking for top speed)
Just a little test I did. I bought a Evo VII, and put the highest transmission on there, and set it as wide as it would go. I put it on the Max Speed test, because I knew it would get to the point to where the accleration would be so minute, you could almost call it your top speed. With the widest auto settings possible, I did 170mph. With a Stage 3 turbo and a Racing Intercooler, I did 195mph, and the acceleration was much greater and would be worth it to keep it going.
- 36,811
- Scotland
- GTP_daan
VG30DETT - you've missed G A R A's point.
You have a car that hits the rev limiter at 130mph. If you give that car more power (but as long as it can't rev any higher), it will still hit the rev limiter at 130mph.
As you say, if you upgrade the transmission then yes, you will get a higher speed. But power alone does not give higher speed. Extra power will need transission upgrade too to see the benefit of that power (in top speed terms).
You have a car that hits the rev limiter at 130mph. If you give that car more power (but as long as it can't rev any higher), it will still hit the rev limiter at 130mph.
As you say, if you upgrade the transmission then yes, you will get a higher speed. But power alone does not give higher speed. Extra power will need transission upgrade too to see the benefit of that power (in top speed terms).
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