well seems we can get 300hp or so out of our boxes and with that kind of power with longer gears, i'm sure we could get going fast. but thats not my point! the whole point is, longer gears, better mileage, STRONGER transmission for those who are pumpin some serious hp and don't wan to worry about blowing the tranny and also having a higher top end.

why is it you are debating over having a stronger transmission that not only helps improve imleage but also is capable of handling the higher amounts of hp and torque so that you don't have to granny drive 98% of the time...

 

why dont we have a 3.94 final drive and a .72 5th gear that would put us at 2400 rpm's at 60 with 215/40/17. As for the rest of the gears thats up to you. I would like to see that rpm range on the highway. I think at the rpm range it would still have power left to go down the highway.
my gear ratio idea's
1st = 3.54
2nd = 2.12
3rd = 1.36
4th = 1.03
5th = .72 or .81


Final Drive = 3.94

 

an update - contacted the Transmission shop, apparently they don't do much imported standard manual work, more towards the high performance automatics, BUT! they do have a cold freeze process that increases the strength of the transmission 30-35% which in our case is perrfect. i asked him about the gear ratios and what he could do about them and he said he doesn't have the right euipment for something like that, he mainly works on US trannys but sometime does work on imports for honda, toyota and all them. he is capable of giving us the cold freeze process of which he was more then willing to give me hundreads of customer references of honda boys and whatnot who have done the same who went from 100hp upto pushing 300-400hp + nos and never had thier original tranny brak down issues after the treatment.

for gearing ratios right now, i'm still looking around. was thinking of a 5-7.5% extension on 4th and a 10-15% extension on 5th and THEN the cold freeze treatment.

search on google *i forgot to save the link* for Mad Dog Transmissions, the owner Lou is a nice guy and is there for your needs. they charge $200 for the freeze treatment so that part is relatively low, as for the transmission, i'd find a used one thats in good condision because buying a new one is a big dent in your pocket *$2,125 new*, should be able to find used ones in good condision for less then half of that of a new one.

1st - 3.54
2nd - 1.90
3rd - 1.31
4th - 0.96 *0.912 - 0.888 (5-7.5% extension)*
5th - 0.81 *0.729 - 0.6885 (10-15% extension)*

 

cryogenics. did you get a price?

 

$200 for the treatment. being it's for the standard manual transmission, thy would just stick the whole thing in the tratment chamber, for automatics the would have to take them apart and treat certain parts and would cost alot more due to labor and whatnot.

but ya, $200 for the process, plus shipping and handeling to send it thee and get it back plus the cost of the tanismission it's self. i asked about used ones and Lou said it's fine as long as they are in good condision so if you find a used one thats in good health then you can save some serious green. i would recommend getting the custom gears before hand and then send it for treatment.

 

Here are the present ratios:

Manual Ratios
1st 3.545
2nd 1.904
3rd 1.310
4th 0.969
5th 0.815
Reverse 3.250
Differential Ratio 4.312
Combined Final Drive (5th gear) 3.514

Automatic Ratios
1st 2.847
2nd 1.552
3rd 1.000
4th 0.700
Reverse 2.343
Differential Ratio 4.157
Combined Final Drive (4th gear) 2.910

It looks like you would make the new Manual 4th the same as the present Manual 5th, and make the new Manual 5th the same as the present Auto 4th. And the new Manual lower gears would be spaced out up to the new 4th.
I think this would make the new Manual as sluggish through the gears as the present Auto, with 5th gear not usable for Interstate hills or headwinds.
I think the Scion designers have optimized each transmission's gear ratios for the power of the engine, and the kind of use the manual and automatic transmission cars will get.

 

...you've missed half the points of doing this...

the longer 4th and 5th which i re-mentioned the newer change of 5-7.5% extension on 4th adn 10-15% extension on 5th and the various other points are meant for the MODDED xA and xB's. those who have the power to moves those gears and those who have the power to blow out the none treated normal stock tranny, those that want more out of it but can't becaue the tranny holds them back.

and the transmission thats in our xA and xB *manual* actualy was not designed based on these models, the C50 was originaly found in the 1985 and 86 MR2's and was upgraded to the C52 between 87 and 88 which had a slightly longer first gear.

these changes are meant for those who have the power to move the vehicle at those settings. plus, if you didn't have the power to really get that up and going, it would just take longer to get to higher speeds but it still saves on long distance travel mileage.

 

Too bad none of you live in Toronto. I have a echo hatchback and I would switch tranny's in a heart beat.

Ed

 

The NA mods that most people have do not add more than a few horsepower and will not overcome the taller gearing. And if the Manual 5th gear became the same as the Auto 4th gear, the car would just have the same top speed as the Auto.
If mods coud add 20 or more horsepower, the proposed gearing changes would be beneficial, but that would require turbocharging.

 

the gains i'm talking about are those who are pushing 2-300hp and are having problems with blown trannys cause they can't handle the power. the extended 4th and 5th helps with top end a bit giving an original top seed for an xB whilest helping with mileage. extending only the 5th gear would prove to be a problem with those with minimal to no power gains thus having 4th gear extended slightly for those times when you start having to go uphill, just down shift and work your way up. the extended 5th will help with cruising, but even with the current 5th, going uphill is an issue anyway... only diffrence is, doing 60 on the freeway will only alow you to keep your momentum but wont do crap for accelerating and would probably take twice as long to go faster until you start hitting 80 or so when the RPM's start hitting the power range. thats what the extended 4th is for, drop it down in 4th, get to about 70/75 and then go back to 5th, problem solved.

plus, around here... it would be very useful... the police district near the Bonney Lake area here in Washington actualy ASK tuners to tst them. they close out a 6 block radious area and chase you for the fun and for free. rules are, if you brake check them and they hit you, you get a ticket, if you get too recless and hit one of thier cars, you get a ticket, if you hit the curbs, you get a ticket and you can't pull the *hide in a radom driveway* trick and walk out of your car. it's a skill and performance test. what does the tuner get out of it? a 1 year exepmt sticker for your car so that you are exempt from getting any ticket of any kind what so ever for the next year *disclueding parking in the disabeled spots and things like that*. so in other words, i can do 130mph on the freeway, if i get pulled over, i show the officer the sticker and i'm on my way doing 130 again.

what are the tuners agenst? new heavely modified Dodge Charges. all converted to all wheel drive, all carrieing 500+ hp, all have a top speed HIGHER then 165mph *unlike the normal new police dodge charges*. only advantage i have over the chargers now is the xB's cornering...

what has this all have to do with the transmission... nothing other then personal interest but what i mentioned in the first... 1/4th of this is hats related to this...

 

and i guess you could say i just hi-jacked my own thread!