6 speed?

[SAdrmmr04]

too much effort, too little gain

[TEK-GTZE]

how bout the jdm lsd final gear from a mx6?

[SAdrmmr04]

bottom line, no transmission will just bolt right up to the engine, plain and simple. as long as your car is FWD, your options are severly limited. for rear wheel drive applications, i would say look into miata transmissions and an adapter plate between the block and bell housing. I remember seeing an article about a guy in a 1G(?) putting a 6spd from an Opel (also guessing) but you are talking about lots of time, money, and effort for not a lot in return. look into getting a different final drive if you want a better overdrive, or just a different 5th gear. the 6spd is just a pipe dream, right along with the RWD MX6.

[ls six]

Originally Posted by darkmushroom

ok well is there a way i can get my tranny geared so that it sint around 3k when im going 60mph? cause im sure thats a gas killer..

The engine is in it's sweet spot there and will get better milage than if you were at say 2500.

I have the bad habbit of cruising around side streets in 5th and lugging the motor pretty bad(did you know itll pull from about 5mph and 150 rpm up a hill?) and my milage takes a hit when I make the car pull from 2-2.5K.

There was a long ass thread either on probetalk or hear debating weather the SVT focous gears would swap in to our case. Somone claimed to have done it but no proof ever appeared.

[Renboy]

Originally Posted by daevilone

do you really need it though??

I quite comfortably get under 10L/100km (or more than 24miles/gallon) when cruising at 120km/h down undulating highways. Thats at about 3500 rpm the whole way.
Where would you like to sit?? If the answer is say 2500... then you are going to have to change back to 4th a reasonable amount. We just dont have the torque down there. If its 3000... then who cares? 500rpm aint worth the effort.

Its only cars with much more low down torque that can cruise highways at 2000rpm. Also those cars tend to top out a few thousand rpm less than ours... we have a high revving engine. The car was never designed to be a pure highway cruiser.

I'm not going to say our cars are torque whores, but there's enough to pull the car around. I know this because I've never had a problem towing with my mx6. Actually, going up a steep hill in 5th with 1/2ton in the trailer forces me to downshift to 4th if I want to accelerate, but that's it. Before anyone bitches that I'm towing with my mx6, usually I'm towing my kart, which, with trailer and all other stuff I need at the track probably weighs in under 900lbs. I'm not about to buy a gas pig truck to tow a kart. There are other times when I have to tow heavier things, and I've never had a problem. So, I do think that driving at 120km/h at 3500rpm is a waste, the car would be fine at say 2800rpm.

[daevilone]

Originally Posted by Renboy

I'm not going to say our cars are torque whores, but there's enough to pull the car around. I know this because I've never had a problem towing with my mx6. Actually, going up a steep hill in 5th with 1/2ton in the trailer forces me to downshift to 4th if I want to accelerate, but that's it. Before anyone bitches that I'm towing with my mx6, usually I'm towing my kart, which, with trailer and all other stuff I need at the track probably weighs in under 900lbs. I'm not about to buy a gas pig truck to tow a kart. There are other times when I have to tow heavier things, and I've never had a problem. So, I do think that driving at 120km/h at 3500rpm is a waste, the car would be fine at say 2800rpm.

on nice, flat, easy going highways 2800rpm sure thing! any sort of decent undulation and out of 5th you come.

the engine is fine running at 3500... from what i've experienced it even prefers to be there rather than under 3000 (agreeing with many others in this thread).

I admit, I wouldnt mind if 5th was a LITTLE taller... so that you are at say 3000-3200 at 120km/h... but thats simply not worth any sort of effort...

PLUS. if you have this awesome 5th for highway driving at 120km/h... what do you do at 100km/h???

lets just say 2800 at 120km/h... so would be something like 2400 at 100km/h. 4th will be at 4000+ at that speed. that would be the most annoying gear ratio ever. Oh [shizzle], tiny hill, 4500rpm to even get up it.

or even 80km/h. that 5th would be unusable. and 4th is still 3500......


custom cut 5th will either be not enough difference to be worth while, or completly stuff the ratio between 4th and 5th making the car a bitch to drive on the change over speed...

[Renboy]

I'm almost always in 5th in the city at 60km/h and it's fine, I don't see what the problem is at 100km/h. And if your car can't make it up a hill at 2800rpm in 5th...there's something wrong (is yours a 4 bangger?). The only time I have trouble going uphill is when I'm towing like I mentioned earlier.

[ls six]

The only time I have trouble going uphill is when I'm towing like I mentioned earlier.

I allready mentioned I can pull up a steep hill in 5th going well under 10mph. As long as I'm not in a hurry.

[BTPilot]

like renboy's saying...i have no problem strolling around town in 5th at 50kms/h even....i would also love a taller 5th...2500rpm doin 100kms/h would be great on fuel savings cuz im a daily commuter for work/school...work being half an hour away...and school 45 mins away...with the way fuel prices keep goin up...it would be worth the money spent to get a taller 5th

[vandejm]

with the weight redux i've done i can drive around at about 35kms in fifth...how bout that...lol

i pull around a corner at 35km/h and fifth will pull me away no problem

i like the current ratios...if i were to spend any money on the trans i would be going all out and getting a custom box with a 6 speed for sure....and the sixth gear would be marginally taller than our current fifth but not by much

i see some 6 speed cars nowadays where the sixth gear is unusable except for steady flat highway driving...example rsx type s...a friend of mine drives one and its really luggy if you use it around town or even on the highway with any elevation changes

[Aussomea]

the cheapest gear ratio change = taller tires

[daevilone]

lol
ok
maybe you can pull away from low rpm in 5th...

but again

whatt about 4th???

I had a look tonight 120km/h = 3500 in 5th and 4750 in 4th.

GOOD FUN if your 5th is 2800..... 2000 rpm difference in gears! LOL.

so to get into the sweet spot in 5th gear (4500+) you would need to be near 8000rpm in 4th... oh... whoops... 7500 cut off? oh dear.... not to mention max power at 5500

also 50km/h in 5th is not the most economical way to drive.

low rpm != good fuel economy...
low rpm + low throttle does however.

therefore driving through suburban streets in 5th at 50... id put small money on using more fuel than using 4th. certainly 4th being better for the car.


oh also. If I were going to spend the money on a 6 speed box, all the ratios would be closer. ALL of them. 6th would be the current 5th. it ISNT a highway car.

Also... enough people say you can get 9L or even 8L /100km or less out of an mx6 when highway driving.. how much less do you want?!?!?! If the answer is any less then you own the wrong car.....

[Renboy]

Honestly, who really cares about the sweet spot in 5th? Under what driving conditions does it really matter? I would say for 95% of owners it's a daily driver and probably 50% have to communte with it. I don't see how making it better on gas is a bad thing. And furthermore, how often do you actually downshift when you're on the highway?

[ls six]

so to get into the sweet spot in 5th gear (4500+) you would need to be near 8000rpm in 4th... oh... whoops... 7500 cut off? oh dear.... not to mention max power at 5500

When do you ever need to shift in to 5th at max output? Drag racing never takes you in to 5th.

Like I said before unless your commute is on a remarkably flat highway then 2500rpm will not get you better milage.

As soon as you need to apply any significant throttle the engine will be working verry ineficiently and be burning more gas than if you were turning 3K or more. Shifting to 4th will just make things worse as you will be turning excessive rpm for a simple task like passing.


I have been on several long road trips in the 6 and its a great cruiser.

At 80 mph and 4k rpm I got over 400 miles on a tank and even with my dumped exhaust the tone wasnt excessive as the engine was under minimal load.

[daevilone]

[quote=ls six;2032158]When do you ever need to shift in to 5th at max output? Drag racing never takes you in to 5th.
[\quote]

well people seem to with reasonable regularity.... also pointing out the folly of having such a vast difference in gear ratios.