Winter

so according to some this is perfectly do'able. if so, i've gone ahead and done some further research about the final drive problem which the GTS C60 trany isn't as bad as the C50's 60mph / 3,000rpm, but is more around 60mph / 2,750rpm.

there are a few companies that make final drives for the C60 that is not only found in the GTS but also in a few lotus models. a company by the name of Quaife makes a final drive of 3.923 for the C60, giving the C60 almost the same 1-5 gearing results as the C50, but with an extended 6th gear that brings highway driving down to 2,400rpm *5th gear being about 3,000rpm @ 60mph, 6th being about 2,400rpm @ 60mph, 4th gear (our usuale passing gear) being about 3,890rpm @ 60mph*.

i emailed Quaife about the idea/combination and also inclueded the purpose and the trany swap usage aswell as if the engine was I/F'ed or not *which in my case it is*. when i hear back from them i will post results or disappointments.

also, Quaife makes what they call a "ATB" differential, basicly the same as your usuale LSD, so i've asked them about that being in the combination aswell.

if all goes well, the new gearing ratios/speed @ XXrpm's would be as follows.

1st - 3.166
2nd - 2.050
3rd - 1.481
4th - 1.166
5th - 0.916
6th - 0.725
REV - 3.250
Final Drive - 3.923 from 4.529

1st 30mph - aprox 5,250rpm
2nd 30mph - aprox 3,400rpm
3rd 30mph - aprox 2,450rpm
4th 30mph - aprox 1,930rpm
5th 30mph - aprox 1,520rpm
6th 30mph - aprox 1,200rpm

1st 60mph - aprox blown engine *10,500rpm*
2nd 60mph - aprox 6,800rpm *near rediculous status*
3rd 60mph - aprox 4,900rpm
4th 60mph - aprox 3,870rpm
5th 60mph - aprox 3,030rpm
6th 60mph - aprox 2,400rpm
For 70mph highway people - aprox 2,800rpm
For 80mph highway people - aprox 3,200rpm

gives for an estimated 8% diffrence in highway economy.

new top speed *for those who are interested in rediculous speeds for a box...*
6th @ 6,250rpm - aprox 156mph

to me, this seems perfectly do'able even for the basic xB with a few bolt on upgrades and is perfect for F/I'ed applications. basicly keeps the original gearing but with that added 6th gear we've always dreamed about...

autopainter13

the top speed id electronically goverened (110 i think)

Winter

i on't feel it would be needed really, he/she who is driving should be smart enough to know what the vehicle is capable of and what it's limits are with those capabilities. i think i'd take pride in knowing my box is capable of doing 165mph redline speeds though i know i'm not stupid enough to take it to that point unless i was on some sort of perfectly flat road and there wasn't any winds of any kind on a perfectly dry day with a medical team standing by.

autopainter13

so will the trans bolt right up to the block? what about the clutch/flywheel?

jct

don't you also have to modify the frame to shoe horn it in there?

Reiji_Dorifuta

Er, maybe I got the rare uber-tall gear option, but I hold around 3.25k @ 75...

Winter

is yours an auto? the Auto C51 trany has longer gears then the manual C50. an auto see's around 2,700-2,800rpm @ 60 while us manuals see around 3,000 at 60mph.


as for frame work, yes, some trimming is required to fit it in, but you can simply make a reinforcement piece with some nice thick metal, for example 1/4" steele. *if i can, i'll take pictures tomorrow of where to cut and whatnot.*

as for clutch and fly wheel, when i was looking into it some time ago, i was told that using your clutch that you already have would be perfectly fine being that the C50 and C60 are basicly the same transmission all togethere, one just has an extra gear. if you think about it really, if you do a 2ZZ motor swap and you're able to bolt the stock C50 up to it, then why would it be a problem to use the C60 on the 1NZFE with the same clutch and flywheel? what i find funny though, SPEC makes clutches for both the GTS celica and the xB... however, they don't have a flywheel for the xB while they have a flywheel for the GTS celica... stupidly enough and strange it may be... but it's possible that the clutch and flywheel that SPEC has for the GTS celica will fit the xB just fine again being it's all the same.

Ekolu2004

very interesting I would love to do that kind of swap in the near future after the build up on a stock motor I have on the side. with the kinda of gear ratios that would help out on gas mileage and the long run on the motor.

JSosa

I like where this is going. You have obviously done your research, now here is the problem: $$$$ MONEY$$$$. How much are we looking at?? I would LOVE to upgrade my tranny because when you hit 100MPH on a manual your rev's are at 5K, so technically if you had more power and could actually get our cars to keep accelerating beyond this point, then you would run out of tranny real quick. Ive hit 115 MPH on a downhill road with the wind at my back, but i think our tranny will only hold up to 125-130 at the most. So technically, if you had 150-160WHP, you could easily redline the 5th gear on the same downhill road with the wind at your back.

Keep talking to me about this, it seems do'able, as you put it.

Reiji_Dorifuta

Oh yeah, rockin' the auto

Damn that's different from the Supra, manual or auto's got 4.30s in the rear... heh.

Winter

we are limited to 133.7mph mechanicly. toyota specific builds thier engines to actualy red line at 8,400rpm and the rev limiter while the engine has load on it is actualy at 7,200rpm. we don't have any governer of any kind on our vehicles at all except when theres no load on the engine I.E. reving in nutural. but in order to hit 150-160 range... i'd say you'd have to be pushing around 200whp/torque atleast just to do it on a down hill roll being our box is like an air brake on wheels. the one plus side to our xB's though is it's length. areodynamicly, if the xB swerves unnoticeably due to wide tires and grooves on the road, the sides of the xB somewhat act as fins like a dart has to keep it's tail end in balance with the front. so going this fast in a straight line may be do'able... but anything else you better be ready for death...

as for cost... i'm not exactly sure yet. the company that carries the new final drive for about... 1,200 i think. as for the transmission it's self, i'll be going to the dealership tomorrow to see if i can order one brand new and see how much it costs because personaly i'd rather have a new transmission over a used one off of a junkyard car. also, being that the GTS celica is rather new *2000-2005* toyota should still be making new parts for them I.E. full transmissions.

987KEITH

watching..... very good ideas and could be quite worth it.

Winter

heres an update

being it's near impossible to find a GTS trany from a junkyard i went to make sure it's still possible to get one new from the dealership.

according to thier imventory, which inclueds any and all toyota parts suppliers, there is 7 C60 trannies country wide available right now. BUT they send out new orders after inventory is gone so it's not like there isn't going to be more.

so, price wise, C60 Celica GTS tranny new is $2,800, thats full tranny assembly. so tha and $1,200 *abouts* for the new final drive and then the ATB diff is another $1,400 abouts. so it's a costly possible operation *still waiting for the email back from Quaife about the possibility* but i personaly think it's totaly worth it in the long run for mileage and performance possibilities.

Winter

also, i'll have pics soon as to where you are supose to cut on the frame to get the tranny in there. it's been raining the past couple days and i don't have a covered parking spot.

hotbox05

wouldn't be worth it imo unless you have a different motor swapped in as well.


the ae 111 6 speed also fits.

Winter

the AE111 does fit, but good luck finding one... they don't carry the trannies new anymore and finding a junkyard one is almost impossible...

hotbox05

imported theyre not too hard to source. jaho japan auctions .. and i've even seen a few on ebay motors.


try any of the importers in florida or southern california.

Winter

i would still go with the GTS's C60 knowing i can get it new and undamaged and know that it's new.

i've just had too many bad experiences with importers saying "oh ya we do complete checks on everything before we allow you to buy or leave the store with it, inclueding items in good condition and in working order." and then have something blow out. not saying any place you've been as done that, but in my honest opinion, i'd rather have it new and do it my self with a couple buddies and have it done right the first time.

as for pictures, i'll probably take some today, weather is looking good.

Grimgrak

Updates?

ogerdgonz

He sold the car, the swap was all talk and parts collecting.