Trimatic.. how much power can they take?

[ported]

How much can they take without modification. Im getting a 400 od hp motor and i want to know how long the auto will last. Also im wanting to put around a 1500 stall convertor, I hear that they do this by modifieing the existing convertor so how is it done and how much will it cost?
The other option is to put a supra 5spd behind it what would this involve apart from the obvios pedalbox, tailshaft, crossmember?

[ported]

ok so asked a few ppl a few questions today and found out that
1) 1500 stall is way to small I need more like a 2500-3000
2) Stock trimatic can only take a liltle bit more than the stock power of a 308
3) I need atleast a stage 2 shift kited box whitch also involves adding stronger clutches and a few other bits and peices.

So if anyone has a shift kitted (stage 2 at least) trimatic they want to get rid of let me know please.
Another think i need to know is the specs of the cam so I can figure out wheather the stall will be right, all i kinow is that its "auscar" spec if anyone could give me futher info on what spec cams auscars might run and more inportantly when the fun will start please let me know

[vkberlina]

If its for the VK why not go for a a 4 speed auto from a 5L VN?? You should have more options to make it stronger. Bolt pattern should be the same. Its not computer controlled so it should work alright.

cheers
Scott

[Phantom VK]

If its for the VK why not go for a a 4 speed auto from a 5L VN?? You should have more options to make it stronger. Bolt pattern should be the same. Its not computer controlled so it should work alright.

cheers
Scott

You'll need to change the block if you want to run a turbo series gearbox.

There is 2 patterns

Holden Patten suits trimatic

Turbo pattern suits TH350,TH400,TH700

I run a Trimatic in my VK (300hp) with stage 2 shift kit & 2500rpm stall.

[ported]

Yea I though about the turbo 700 but then i would have to adapt it to the block. Im trying to do the whole convertion for under 2500 so dont have much left over for the auto. O well looks like i'll chuch the supra box i have in.
Hows yours to drive with the auto phantom?
Do you have any problems with trans heat?
How is it on fuel?
Does you motor supply enough vacum for changes?

[Phantom VK]

Yeah it drives really good. I'm gunna put in a VL turbo diff to drop it down to 3.45 ratio

I've got a fairly large PWR trans cooler so it stays fairly cool.

It's running rich at the moment - still sorting out the tune. It uses about
20l/100km on the highway.

No worries with the vacuum, plenty there.

[Cane_It]

the trimatic I'm running in mine I'm told is good for about 450HP at the flywheel, anything more would require a lot of stronger internals hardened gears etc. its a 2500 TCE hi Stall, Full manual valve body so vacuum for shifts isnt an issue, it shifts hard, like a stage 2 shiftkit would i guess. Talk to Trade Matics in Geelong if your in VIC he built mine had it a couple of years now and it takes a bit of punishment although nowhere near 450HP...

[immortality]

i've had a standard traumatic behind a brocky modified 308 for years and it's handled the abuse ok, bands need some adjustment but thats about it really. been driven hard for many years with an engine producing easily around the 180 + kw etc. my only complaint has been the converter which is way to small for the application causing issues with the engine stalling at idle if it's less then about 1000rpm when dropping into gear etc

[Goon]

the trimatic I'm running in mine I'm told is good for about 450HP at the flywheel, anything more would require a lot of stronger internals hardened gears etc. its a 2500 TCE hi Stall, Full manual valve body so vacuum for shifts isnt an issue, it shifts hard, like a stage 2 shiftkit would i guess. Talk to Trade Matics in Geelong if your in VIC he built mine had it a couple of years now and it takes a bit of punishment although nowhere near 450HP...

Nice

Good take off?

Trans cooler?

[Cane_It]

definitely running a trans cooler, you have to, and bypassing the plumbing into radiator. doesnt launch too well, tends to sit there spinning the wheel (only a 3.08 single spinner in it atm), but good when it hooks up, easily chirps the tyres from 3500rpm upwards into second...

[Goon]

definitely running a trans cooler, you have to, and bypassing the plumbing into radiator. doesnt launch too well, tends to sit there spinning the wheel (only a 3.08 single spinner in it atm), but good when it hooks up, easily chirps the tyres from 3500rpm upwards into second...

Nice, mine spins up until 20, i use 2nd once it kicks in past 25k and go upto 70k, pull over 2000rpm for sure probley close to 2,5.. extractors get used

I'm still looking at a 5speed myself but that upgrade sounds sweet

[vk_calais5.0]

i think i need a trans cooler by the sounds of it,considering i have vl turbo rear
and stage2 kitted trimatic. i think it should launch harder than it does
still chirps into second..

[Cane_It]

the trans cooler will help your oil, ever smelt how rotten the stuff is if its been cooked...

definitely run a seperate trans cooler with a modded trimatic, bypass the radiator as all you're doing is adding 90'c heat into the trans fluid from the coolant.... you'll find your trans will like it a bit better.

vk_calais5.0 - is your 5L stock or have you upped the ante on it? would be curious with regards to how yours launches. suspension has a lot to do with it to. my suspension is shot, thats next on the list of big things to do.

Goon, I had a similarly modded tri behind a fairly heavily modded 202 in a torana, did awesome chipys in that too but i had to get the revs up to 4000rpm+, anywhere between 4000 and 6000.... easily smoked N/A VLs and based on comparitive dyno figures of VLs and VNs I'd say it would have flogged a VN 3.8 auto, probably not a 3.8 manual though unless it was driven by a retard that wouldnt be able to keep it straight.

[ported]

Well if anyone is interested in swapping a fully manualised trimatic with 3k + stall for a w57 supra 5 spd with EVERYTHING you will need to drop it into a vk let me know

[Goon]

Well if anyone is interested in swapping a fully manualised trimatic with 3k + stall for a w57 supra 5 spd with EVERYTHING you will need to drop it into a vk let me know

Do u get diff rpm ratio's? with that box?

[ported]

Do u get diff rpm ratio's? with that box?

Actually after looking at this I remember its either a w55 or w59 its has a very low first gear so leaning towards w59
this shoould tell you everything you need to know (page 6)
http://www.dellowauto.com.au/catalog...Automotive.pdf