convertor tech query

MilesnMiles · Post by **MilesnMiles** » Sun Sep 23, 07 9:47 am

Looking to replace my convertor. Need to understand some stuff.
e.g.lock up etc..?
I have an external balance 360 with a TCI assymetric flexplate which should allow me to fit any convertor without needing balncing lugs.
Will post seperate thread ref correct stall speed. Just need to know waht type of convertor I should belooking at.

AllKiller · Post by **AllKiller** » Sun Sep 23, 07 10:07 am

lock up = stall speed
flex plate is good for after market conv's

unless its an switch pictch convertor for a computer controlled motor....which its not
Engine spec, cam etc, useage ??....thought we'd done this once

Dave-R · Post by **Dave-R** » Sun Sep 23, 07 10:15 am

My understanding is that the more modern transmissions use a "lock-up" convertor where in top gear the convertor locks solid into direct drive electronically.

Dave-R · Post by **Dave-R** » Sun Sep 23, 07 10:17 am

Well made convertors at a good price. http://tcsproducts.com/

Dave-R · Post by **Dave-R** » Sun Sep 23, 07 10:29 am

This chart from the TCI website is a handy guide. Just don't use TCI convertors. They are rubbish.

MilesnMiles · Post by **MilesnMiles** » Sun Sep 23, 07 1:00 pm

Thanks guys, that clears the lock up/balance query.
Steve, questions have been answered previously about thestall speed issues, but I had other questions before I get to the stall speed issue :

, one of which is..are there different spline applications for small block 727 trans are are they all the same spline type?

Thanks for links, Dave
Also given that TCI seem to be a major name, how come they can make crap products?

Dave-R · Post by **Dave-R** » Sun Sep 23, 07 1:07 pm

MilesnMiles wrote:Also given that TCI seem to be a major name, how come they can make crap products?

TCI are cheap.

I bought one against advice. Because it was cheap and all I could afford.

One worn out crank and knackered transmission later it does not seem so cheap. I have bought a TCS converter instead.

MilesnMiles · Post by **MilesnMiles** » Sun Sep 23, 07 1:47 pm

'Nuff said!
Looks like 727s are 24 spline according to TCS catalog although i'm damned if i could find a price

Guy · Post by **Guy** » Sun Sep 23, 07 1:57 pm

TCI=Turns to Crap Instantly

I would never buy one again

Pete · Post by **Pete** » Sun Sep 23, 07 3:37 pm

I will have some convertors for sale shortly from 2400 to 3800 stall behind a big block; I have found most stall much earlier.

My 4400 convertor will start the car gently moving as about 1500 - 1800 rpm; though obviously not locked up/stalled at that speed...

Ivor · Post by **Ivor** » Sun Sep 23, 07 6:22 pm

Pete wrote: My 4400 convertor will start the car gently moving as about 1500 - 1800 rpm; though obviously not locked up/stalled at that speed...

That's the most valuable post I've seen in a long time as regards stall speeds and converters...plain English, that everyone can understand...however, it may be worth pointing out that all your engines reently have been making some serious torque, which means a two barrel. low compression 3838 may take just a teensy weeny bit more reves to get moving!

AllKiller · Post by **AllKiller** » Sun Sep 23, 07 7:10 pm

So true

Mick · Post by **Mick** » Sun Sep 30, 07 3:47 pm

If you can afford it buy a decent one, if you're buying new the best for the price are PTC.
Either email or ring them and they will advise you what's best for your car and choice of use.
Cheap way to call, use telesavers, USA = 1P A MIN.
Mick

http://www.telesavers.co.uk/

Guy · Post by **Guy** » Sun Sep 30, 07 4:11 pm

Here you go Fordson has one for sale maybe a little loose but wont be to bad http://www.moparuk.com/forums/viewtopic.php?t=15965

MilesnMiles · Post by **MilesnMiles** » Sun Sep 30, 07 6:18 pm

I think 3000 is a bit too much. I probably need 2200-2500. Am making plans currently.