KCF Trans behind a TR Motor?

[jdpolzin]

Has anybody ever installed a 100% KCF trans behind a mild TR set up? i'm curious as to how it shifts and reacts as compared to the BRF and BQ's. I have a spare low miles KCF trans and thought about using it to get a car going. I'd use the D5 converter as well.


I know I know, dont do it, you need to put a full billet rollerized set up on it!:biggrin: I know, run the best there is and spend as much money as you can. This car wont be a 10 sec car, just a street cruiser and the guy literally has no money but needs a trans and I can set him up with one for $50. That tells you where we are as far as money goes.

I'm just wanting to know how it reacts under normal street use, more than like no more than 20lbs of boost on a stock turbo. ----Jeremy

 

[Otto J]

ill give ya a BRF valve body and 50 bucks for a valve body swap

 

[jdpolzin]

ill give ya a BRF valve body and 50 bucks for a valve body swap

Otto, After talking with Chris quite a bit I know that the KCF valve bodies are pretty good to modify. I'm honestly not wanting to pull this trans apart. If I did, I'd want to use the BRF govenor and servo as well.

I'm really just wanting to help this guy out and get him a cheap trans. I'd just like to know how well the stock KCF valve body, govenor, servo trans will react in our cars on a mild set up. I now I will only have the 1 and 2 indicators because of the white plug as well.





However, I will try to find you a KCF valve body if you need one. I come across quite a bit of stuff from time to time.

 

[Otto J]

Otto, After talking with Chris quite a bit I know that the KCF valve bodies are pretty good to modify. I'm honestly not wanting to pull this trans apart. If I did, I'd want to use the BRF govenor and servo as well.

I'm really just wanting to help this guy out and get him a cheap trans. I'd just like to know how well the stock KCF valve body, govenor, servo trans will react in our cars on a mild set up. I now I will only have the 1 and 2 indicators because of the white plug as well.





However, I will try to find you a KCF valve body if you need one. I come across quite a bit of stuff from time to time.

I need one if you come across it.

 

[Turbo86GN]

Otto, I have a KCF valve body if you are interested.

Mark

 

[bison]

I'm really just wanting to help this guy out and get him a cheap trans.

I wouldnt get involved. You will get blamed if this does not work out. If he doesnt have the $ to get it right the first time then he needs a new hobby. There is nothing cheap about these cars.

 

[jdpolzin]

Not worried about getting blamed for anything or having drama, he's a friend of mine. I know very well how much these cars can suck the cash from you. and as I stated in the first post, I know he should go out and get a billet rollerized trans with a brake and such.



I just want to know how they react? What can be done to help the shift points? Use a GN govenor? Do the shift points really even need to be changed? There are many people using KCF valve bodies in there BRF tranny's, so is the correct thing to do to run a KCF valve body with the GN servo and a GN govenor?

 

[bison]

Not worried about getting blamed for anything or having drama, he's a friend of mine. I know very well how much these cars can suck the cash from you. and as I stated in the first post, I know he should go out and get a billet rollerized trans with a brake and such.



I just want to know how they react? What can be done to help the shift points? Use a GN govenor? Do the shift points really even need to be changed? There are many people using KCF valve bodies in there BRF tranny's, so is the correct thing to do to run a KCF valve body with the GN servo and a GN govenor?

He doesnt need billet or rollerized. He needs a properly calibrated BR trans. I covered about 2 years ago whats required to get a good calibration with a KC and its proper application. If you run it with a BR governor you will not get WOT upshifts unless your engine is capable of pulling to at least 5800.

 

[jdpolzin]

He doesnt need billet or rollerized. He needs a properly calibrated BR trans. I covered about 2 years ago whats required to get a good calibration with a KC and its proper application. If you run it with a BR governor you will not get WOT upshifts unless your engine is capable of pulling to at least 5800.

OK, do you happen to have a link to the thread? I searched and read for about 3 hours into this but couldnt really find any good information. The motor is definately not capable to shift at 5800. It's a very basic IC swap on a Hot Air block that has an NA crank. Stock turbo, only mods are a houston DP. Still has stock valve springs in it too. I'd be interested in learning what needs to be done to make this work.

 

[bison]

OK, do you happen to have a link to the thread? I searched and read for about 3 hours into this but couldnt really find any good information. The motor is definately not capable to shift at 5800. It's a very basic IC swap on a Hot Air block that has an NA crank. Stock turbo, only mods are a houston DP. Still has stock valve springs in it too. I'd be interested in learning what needs to be done to make this work.

I posted it in trans tech about 2 years ago. Search my user name

 

[jdpolzin]

I posted it in trans tech about 2 years ago. Search my user name

Good call! Will do. I've searched and googled KCF stuff but havent come up with much. I spoke will Lonnie today about it too.

 

[80/89TTA]

KCF Valve body

Otto sent you a PM

 

[chris718]

Wow,I started a revolution with that valve body.Should have kept it to myself.What a lot of you dont realize is how good it works with the right tv limit and shift valve springs.I now have a killer BRF replacement with a real live passing gear above 20 mphour.Sorry ,wont post parts list.

 

[jdpolzin]

Got the trans installed, it was actually a KJF not a KCF. It's installed with a stock D5 converter and everything was inside the trans as it came from the factory, with the exception of the filter of course! The car shifts a little early but it's not too bad. The trans actually works pretty darn well for $50!!!

 

[jdpolzin]

Put a 49 turbo on it to test the turbo today. Turned on the alky kit and went for a 10 mile spin. The trans is actually performing quite well. I'm actually very suprised how well it does perform. You can tell it shifts a little early under normal driving conditions but NOTHING that I would consider a performance downfall. Under WOT the trans is shifting the car excellent and keeping the car right in its powerband. I'm extremely impressed. I know it's no FULLY BUILT trans but I think this thing is an awesome option for those who dont have the funds for a BRF or BQ and can find a good one cheap.

This particular trans had about 80K miles on it and was behind a 307 in a 1987 Regal. There is no slippage (so far!. I've seen much worse slippage in plenty of stock BQ and BRF trannies.

I may be wrong but one thing I tried to pay attention to is the WOT 2-3 shift hang that we get with our stock trannies and it seemed like this one shifted quicker with much less hang up. Might have just been me and it might be physically the same valving as the BRF's at 2-3 but it did seem quick.

I came across a black ZO6 Vette (verified by the liscense plate) at a stop light. He gave me the nod and smile so we took off. I didnt want to break the tires loose so I just gave her a little gas with my foot on the brake then punched it. the car was set on 25lbs of boost. I had him by probably 4-5 car lengths and when it shifted into 3rd, the back tires broke loose!. He rolled the window down at the next stop light and said "I knew I shouldnt messed with that thing! I broke the tires lose at the light but I still dont think I could have had ya!" I gave him the thumbs up and said "Thank you sir." He left with a thumbs up!

Overall, I'm very extemely happy with the decision to install this trans. Now no more beating on it for me!!!!!:biggrin:

 

[toofastforyou]

Pardon my ignorance, but what's a "KCF" transmission?? ...Could it be a Kentucky Chicken Fried transmission?...:biggrin:...but seriously...what is it?...

Claude. :redface:

 

[SSedan64]

Pardon my ignorance, but what's a "KCF" transmission?? ...Could it be a Kentucky Chicken Fried transmission?...:biggrin:...but seriously...what is it?...

Claude. :redface:

:biggrin: That's funny.
KCF code = came in Full size B & D body cars w/307 Olds Eng. & 2.73 gear.
Codes >> THM 200-4R Information

 

[toofastforyou]

Ok, thanks for explaining...but...what's the advantage of using a KCF transmission over a BRF ?

Claude.

 

[SSedan64]

If you have Engine Mods such as larger Cam, Turbo etc.. and want higher rpm auto shifts around 6000rpm the KC Vbody combined with BR etc.. Gov will accomplish this. Works better & is easier than trying to grind on the Gov weights to raise shift points.
KC, KJ, KT, CR codes may work similarly. May require other tuning, "springs in Vbody". The Trans Guru's will know what's required.

 

[bison]

KJ and KT will not work similarly without a lot of work. CR can be made to work but will not easily duplicate the shift rpm of a KC with the correct calibration. I still cant believe some of these guys are baffled by the use of a non high performance vb in their 200 4r. This is old news and has been covered many times. KC is not rare either. A lot of 2.73 ring and pinion 307 powered cars were built. A lot more than TR's