convertor talk ?

so when you guys talk about convertors and talk about when the shift comes in the it drops rpms ..what is the ideal drop between shifts ?

how do you know you are "driving thru a convertor" and is that the same as
"blowing thru a convertor" ........ just curious ??

thxs for everyones input
Nick

deleted.

Nick the ideal drop is not as easy as 1 2 3, from what I understand is it needs to drop RPM back onto your Torque Peak, RPM..... this is so it will use the High Torque numbers to pull it back into the Peak Hp range.....I hope that makes sense.... you have your dyno Numbers look at them and figure out what you need...... then ask your converter guy to set up for your App.....



Randy

the Coug wrote:Nick the ideal drop is not as easy as 1 2 3, from what I understand is it needs to drop RPM back onto your Torque Peak, RPM..... this is so it will use the High Torque numbers to pull it back into the Peak Hp range.....I hope that makes sense.... you have your dyno Numbers look at them and figure out what you need...... then ask your converter guy to set up for your App.....



Randy

thats exactly why im going to dyno all my engines for now on BEFORE they go into the car. Id like to get the combo right the first time. more money upfront but less headache and money later.

Maddmattmustangs wrote:

the Coug wrote:Nick the ideal drop is not as easy as 1 2 3, from what I understand is it needs to drop RPM back onto your Torque Peak, RPM..... this is so it will use the High Torque numbers to pull it back into the Peak Hp range.....I hope that makes sense.... you have your dyno Numbers look at them and figure out what you need...... then ask your converter guy to set up for your App.....



Randy

thats exactly why im going to dyno all my engines for now on BEFORE they go into the car. Id like to get the combo right the first time. more money upfront but less headache and money later.

Yhats a help, and a good converter guy like Lenny will get it damn close, but a max effort deal might need a small tweak or two.

The harder I spin mine the harder it "locks up", if I shift at 7000 it falls back to 6000, if I shift at 7400 it falls back to 6000.

richter69 wrote:

Maddmattmustangs wrote:

the Coug wrote:Nick the ideal drop is not as easy as 1 2 3, from what I understand is it needs to drop RPM back onto your Torque Peak, RPM..... this is so it will use the High Torque numbers to pull it back into the Peak Hp range.....I hope that makes sense.... you have your dyno Numbers look at them and figure out what you need...... then ask your converter guy to set up for your App.....



Randy

thats exactly why im going to dyno all my engines for now on BEFORE they go into the car. Id like to get the combo right the first time. more money upfront but less headache and money later.

Yhats a help, and a good converter guy like Lenny will get it damn close, but a max effort deal might need a small tweak or two.

The harder I spin mine the harder it "locks up", if I shift at 7000 it falls back to 6000, if I shift at 7400 it falls back to 6000.

does it go any faster when you shift at 7400?

yes

badnotch wrote: nick spend $ 1000 and buy a data logger -its an awsome tool

Wont a 7531t data log

how you pullin 7400rpm with street heads Fabio ?

not sure if its got a collar that goes to drive shaft then i would say yes

KY JELLY wrote:how you pullin 7400rpm with street heads Fabio ?

what yours wouldn't?

whatbumper wrote:I know one mistake that a lot of people make in high rpm apps in a powerglide is that they fail to relieve the pump drain back and the convertor fills full with fluid and stops working correctly.

Huh? That has nothing to do with it. The pump drain back hole? If you're referring to the hole behind the front seal all that does is allow fluid that comes by the converter bushing to return to the pan. The outlet path for fluid leaving the converter is usually larger than the feed size smallest area which is at the valve body 99% of the time. And the converter should be full of fluid to function properly. No fluid... no go. Air in the converter... cavitation time and converter damage occurs.

richter69 wrote:

KY JELLY wrote:how you pullin 7400rpm with street heads Fabio ?

what yours wouldn't?

no , the 466 would run quicker shifting at 7000

KY JELLY wrote:

richter69 wrote:

KY JELLY wrote:how you pullin 7400rpm with street heads Fabio ?

what yours wouldn't?

no , the 466 would run quicker shifting at 7000

I guess my low compression over cammed 529 likes the rpm lol. The cam is still advanced a bunch as well.