Transmission and Power output corralation?

[Canadian1968]

Have a fresh built 727 with TF-2 kit and a 2500 stall.

Engine is fresh as well 440 cam,header,intake ,carb, iron heads with work 9.8:1 compression .

took the car out , put the pedal down around 50mph, it kicked down and took off . well as well as it could with 2 barrels, my secondaries weren't opening I forgot to put the little gasket back between the vacuum diaphragm and main body. 

Car pulls up to 5000rpm slowly , tranny goes to shift but just feels like it kicks out . Revs do not climb, kind of feels like I let off the pedal .  When I do let of and give it has again. Its in 3rd and just drives as normal ?

Since the car is accerating slowly with only the 2 barrels open is there a connection between the lower power output the engine is making and the tranny line pressures at all ?

I ask because I fixed the secondaries and took it out again and the car shifted normally 3 times I tried it . With full power of the motor now

Or will the engine choke itself out with the limited cfm flow.  and I am actually feeling the engine let off and not the tranNY ?

make sense ?

It's hard to discribe lol

[c00nhunterjoe]

With the secondaries not operational, the engine should run perfectly fine on the primaries through whatever your redline is. It cant choke itself as it will run on whatever cfm it is able to pull and the fuel will be metered accordingly.

[Canadian1968]

ok so it is the tranny

[BSB67]

No.  Not the tranny.  It is the engine chocking itself before it gets to shift rpm as you said.

[Canadian1968]

huh  got one person that says motor choke itself out and the says it won't. 

I mean the car seems to be working fine now but just curious as to what it is

[charger Downunder]

Whats the limit on your ignition what do you have mopar orange box ?, 5000rpm might be your max.

[John_Kunkel]

I ask because I fixed the secondaries and took it out again and the car shifted normally 3 times I tried it .

At what RPM did it upshift after the carb was fixed? If it automatically upshifted to third at higher than 5000, then the trans was OK...you just never achieved the automatic upshift RPM with the faulty carb.

[BSB67]

huh  got one person that says motor choke itself out and the says it won't

You act surprised.  We're mostly a bunch of hobbyists half guessing what someone is trying to say over the internet.  5 completely different responses are not uncommon.

[c00nhunterjoe]

I said it SHOULD function fine on primaries if all is well. I never said the trans was your problem. You basically answered your own question within your question. It ran fine when you fixed the carb's missing peices.

[Canadian1968]

huh  got one person that says motor choke itself out and the says it won't

You act surprised.  We're mostly a bunch of hobbyists half guessing what someone is trying to say over the internet.  5 completely different responses are not uncommon.

A little confused yes.  When you get a yes and No answer .

1. Because I know there are some very knowledgeable on this site.
2. When it came to the carb, I figured there would be a basic yes or know answer. Is it even possible for the Engine to draw more air than the carb will supply ?  And " choke" itself out, or will it always just run on what its supplied with ?
3. I kind of answered my question I guess. But still valid, was it the lack of power delivered to the transmission or was it the lack of CFM delivered by the carb.  IN the end I guess both are carb related,  I just like to try and understand what exactly is going on.  I believe that how we all learn and develop our own problem solving skills?

[c00nhunterjoe]

huh  got one person that says motor choke itself out and the says it won't

You act surprised.  We're mostly a bunch of hobbyists half guessing what someone is trying to say over the internet.  5 completely different responses are not uncommon.

A little confused yes.  When you get a yes and No answer .

1. Because I know there are some very knowledgeable on this site.
2. When it came to the carb, I figured there would be a basic yes or know answer. Is it even possible for the Engine to draw more air than the carb will supply ?  And " choke" itself out, or will it always just run on what its supplied with ?
3. I kind of answered my question I guess. But still valid, was it the lack of power delivered to the transmission or was it the lack of CFM delivered by the carb.  IN the end I guess both are carb related,  I just like to try and understand what exactly is going on.  I believe that how we all learn and develop our own problem solving skills?

Perhaps i should have elaborated more, but then sometimes i get accused of being too harsh when i do. You will find that alot of times the answer is yes and no just like the answer to question 2. Its both yes and no. 1st of all, it depends on the size of the primaries and what they flow. For example, the center carb of a 6 pack can support a b body into the low 11s. Been there, witnessed it 1st hand on a 10.40 car. Compounding that but not relavent to your car is boost. Turbos blowers or nitrous can change the equation as well. So yeah, sort of. It will run on what it can get. In your case it sounds like it either ran out of air or fuel on the primaries. Without further testing you will never know which.

To answer 3: all questions are valid. For whatever reason, fuel air or both, your engine speed was not overcoming the govenor speed to cause the upshift.