maybe the guy in fl had the tredstone kit he is the only boosted auto i have seen he was in fl though hmmm

 

Probably Treadstone. Ancla claims to develop the Treadstone kits and they are in FL.

AFAIK, CXR's stuff is developed by Rene of Rene Motorsports in CA.

 

yeah well either way he had to lift to shift

 

scionfred...

im guessing urs is an auto?? what turbo u going w/or custom kit??

i personally think i should be ok w/an auto that's boosted around 250whp cause thats my goal...im expecting it last me 100k miles w/maybe a spirited drive once a month for maybe 2-3 miles....am i safe to assume that on 250whp??

 

There are so many variables on the way to 100,000 miles, and even then, that's still probably pushing it anyway since the transmission was not meant to handle the increased torque.

 

ScionFred, there is no reason you should need to lift to shift w/auto. This is not to say Cory is not telling it the way he saw it - this is possible. There is no vacuum line or any other control other than the electronics that appear to control the shift on this, XB2nd gen, transmission. So starts the mistery.

I want to build an auto XB2. My worry are the clutches & planets... How large a cooler & converter. I need 1 of these to take apart & sort. I'm speculating that these slush boxes will hold over 230bhp without much work. "speculating" & knowing = fail & win in this scenario.

 

250 in a auto will fry it faster then bush got out of town

 

Getting a transmission cooler will help as heat is one of the biggest killers of automatic transmissions. From there, I suggest you go have your automatic built by IPT for around 4000 bucks.

 

Yes, the cooler would be a big player.

For 4k it sounds like IPD is replacing everything, sun, planets, clutches & a reworked valve body. I know those guys, they build some bullet prof stuff. I'm not building a drag car, although that would be fun. I want a high hp DD that has good driving characteristics. I'm sure I can build 230bhp, 200# & have what I'm looking for with an auto. There's quite a bit I need to know about this auto.

I have a good friend with an A4 auto that I build a 48mm Garrett 250bhp - 230#tq 2l for. It's still using the OE auto trans. It's gone well over 30k without a problem - and yes it has a big cooler with a fan..... What it boils down to is load - how much. Some of this new stuff is way better than I'm use to thinking. High hp front wheel drive with an automatic transmission, a slusher at that...... with a small 4 cylinder engine making 230bhp, 25 years ago - whoda thunk it????

Hey, if I blow the trans ( possible but not likely ), I'll know what to spend time reworking. I think Cory blew his CM up.... stuff fails..... In this case, MT, high hp is bad for an OE clutch. I can tell you the OE clutch MUST be replaced with any FI app on a gen 1 XB - I have an 05 with a blower. The gen 2 clutch slips even more, more than I expected.

For now I have a shop that can make me some clutches & that the extent of all I really know. The rest is pure speculation & a well educated guess...

And thanks for your post!

 

stock clutch starts slipping at about 330 whp at 5000 miles and i have been rough on it
stage 5 never slipped but blew up
there is a guy here with a auto that ran a 75 shot of n2o on his car put down 200 whp blew his tranny in 3 months and 2 bottles of n2o

its a game of chance
mech linkage will always hold more power
over a fluid lock just common sense

i think with a cooler you will be a little safer but still running the risk

 

Yes, everything is changed and a different torque converter is included.

Not that it means anything, but they are actually a few minutes away from me

 

Good guess, AT here. I bought the CXR kit with a T3/T4. I wish I knew how strong this AT is but I assume that Toyota wouldn't offer a SC for it if they felt it couldn't handle at least 200whp. 250whp may be pushing it a little but IMO that depends greatly on how you drive it. If you wanna do a lot of neutral drops and burn-outs, Cory may be right.

BTW, I just helped my parents drive their 2001 Highlander with our same 2.4 engine/4spd AT from FL to PA fully loaded and towing a heavily loaded U-haul trailer. No problems. Their Highlander is rated to tow 3000lbs and we probably exceeded that. I don't know if the Highlander has a better AT cooler but it might. I'm not the least bit worried about running 200whp on my AT.

 

I agree. I find it hard to believe that Toyota and TRD would offer a fully warrantied SC producing well over 200bhp if they didn't think the AT could handle it. Then there is the expected safety margin that they surely included. In any case, I'm only planning on about 200whp and I'm not at all worried about my AT. I've broken 2 MTs before but never broke an AT. Not to say that an AT is stronger, simply stating my personal experience.

 

Just curious where you came up with that tow weight, since the 2.4L is rated by Toyota at 1500 lbs. tow capacity (2WD & 4WD), and the 3.3L V6 is rated by Toyota at 2000 lbs. tow capacity (2WD & 4WD).

 

The owner's manual. I was surprised too since a lot of online sources indicate lower figures. Here is a link I just googled for confirmation (look under 'performance').

http://www.theautochannel.com/vehicl.../russ0131.html

 

Fred, you already have the turbo kit? If so, this project should be very interesting. I like it!

The TC SC adds 42 to about 48bhp. If Toyota can add this as an option for an auto ( the drivetrain deal is shortened to 12K ) you'd think the turbo would work fine at somewhere south of 230bhp.

The 1 thing I don't like is how lazy the shift is. I'm thinking valve body but it could be the electronics.

 

Both. It has to be setup like that for the "typical consumer".

 

Both is not good. I was hoping for electronics like some of the German builds.

"typical consumer" = "Oh, I let the rain wash my car"

 

German builds also include automatic transmissions that aren't based on Torque Converters....

Also yes, the typical consumer = people here on ScionLife = ricers. lol

 

AND - "kit" = something you need to fix before you can fix it.......

The non converter transmissions are very very good.

A little off topic - hedge funders own over 10% of GM's debt. So, if GM fails, since the debt is insured for more than than the actual value, these hedge funders will make about 2bil. Over the last 10 years, I wonder how many trillions of dollars the big 3 have pumped into the economy. Bailing the big banks out that make no product & no real bail out for the big 3........ Fiat may be the company building our new mass transit........ Just a quick rant