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  #16 (permalink)  
Old 02-08-2010, 09:26 AM
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$800.00 for a trans you know nothing about but what the seller claims is hard to swallow for me. And then you need to get a converter. I'd pass

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  #17 (permalink)  
Old 02-08-2010, 09:28 AM
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thats what i was leaning towards. If he had a list or receipts maybe
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Old 02-08-2010, 02:53 PM
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Since you're in New York you should talk to David Husek @TurboBuickPerformance or Chris @CkPerformance. There's several builders having price wars on TurboBuick.com forums right now. Price wars on 2004R's & Billet parts. I love competition.
Look for posts by David Husek or Chris718 on TB forum.
http://ckperformance.com/index.html
http://www.turbobuickperformance.com/
http://www.turbobuick.com/forums/transmission-talk/

I'd pass on the $800 trans also. B&M shift improver kit not in a 2004R.
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  #19 (permalink)  
Old 02-08-2010, 04:29 PM
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yea im def gonna pass on it. i talked to my local trans shop and he said he should be able to get me a core in a week and it will cost $75. he really thinks i would be better off with a 700 because i already have a 30 spline trans. i did the gear calculations today and it wasnt too big of a difference so i guess i got some more thinking to do.
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  #20 (permalink)  
Old 03-01-2010, 09:05 PM
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Nothing wrong with a 700r4 if you have a heavy vehicle. The extra low first helps it out of the hole. But then there is the big jump to second.

I like the 2004r better for its gear spacing and the physical dimensions that allow it to go in without cutting the drive shaft in my application. Plenty of real fast cars using one.
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  #21 (permalink)  
Old 10-13-2012, 05:50 PM
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Well digging this back up. I finally am in a position financially to tackle this project. I have bought ckperformance's rebuild manual and have been reading through it. I also got an ATSG manual and rebuild video and GM Technical Manual that has a section all about the 200-4r. Well I picked up an 87 Monte Carlo today. Not sure if its an SS or not no badges on the car at all. Its pretty rotted but has the SS wheels and SS steering wheel but of course these could all be swapped. I pulled the trans and got the tag off of it just as the sun went down.

The Code from the Tag is 064-862CHF1628.

I was kinda hoping it was gonna be a CZF but I can not find any documentation on this "CHF" trans. Does any one know if it is any good. I am still using the rebuild kit from CK Performance that I posted originally but depending on the Governor I may need to upgrade that also. But anyways can you guys give me input on this trans and if its worth rebuilding for my olds. Luckily I was able to get the whole car so now I have the TV Cable, cross member, and tv carb bracket.

Thanks everyone!
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Old 10-14-2012, 02:00 AM
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1988 was the last of the monte ss for sure had one the ss trannys with the stock caibration works good i d up grade to a 13 vane pump and .500 boost valve any 200r will benifit from a transgo shift kit i dont use the hd kit i use there sk200r4 combined with a super servo in a high performance app or a 200 3speed servo for a crusier or daily driver couple other thing i use is 2 wave springs in the low and rev piston add a extra od friction by maching the apply hub always use a new sun gear and stator and tv cable adjustment is critical
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  #23 (permalink)  
Old 10-14-2012, 05:03 AM
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According to this site Monte Carlo VIN Decoding my VIN is one of the possible combinations for the SS. Any idea how else I can find out. The car is pretty rotted and I want just gonna scrap it after pulling everything I want off of it but if its an SS maybe I will put it up for parts on a couplle different places and give people a chance to get what they might want off of it


Any input on this particular model of 200 4r? Again I have not seen a CHF on any of the websites I have looked at.
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  #24 (permalink)  
Old 10-14-2012, 06:26 AM
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tear down begins!

Here are some pics of the ID tag and the stator support that I have heard has many issues... Mine looks like it was on its last leg. Does this mean the converter is garbage also?
Attached Thumbnails
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ID:	68402   Click image for larger version

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ID:	68403   Click image for larger version

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Size:	1.19 MB
ID:	68404  
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  #25 (permalink)  
Old 10-14-2012, 09:36 AM
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81-85 had a lot of trouble with stators i wouldnt re use a torque converter from any transmission core depending on your application a 82-84 corvette spec converter has a 2000rpm stall speed if u live in the mid west or do lots of hiway driving stay with the lock up if your mostly in town run a non lock up converter and use the trans go non lock up conversion if the gear on your governer is green its most likly a ss trans as far as books atsg are advabilble but try to find a gm service manual that covers a 200r4 its more detailed the sk200r4 kit gives good info also
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  #26 (permalink)  
Old 10-15-2012, 05:40 AM
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Quote:
Originally Posted by joshp83 View Post
81-85 had a lot of trouble with stators i wouldnt re use a torque converter from any transmission core depending on your application a 82-84 corvette spec converter has a 2000rpm stall speed if u live in the mid west or do lots of hiway driving stay with the lock up if your mostly in town run a non lock up converter and use the trans go non lock up conversion if the gear on your governer is green its most likly a ss trans as far as books atsg are advabilble but try to find a gm service manual that covers a 200r4 its more detailed the sk200r4 kit gives good info also
My cam requires around 2800-3000 rpm stall so Im sure nothing from the factory will work for me I was just wondering about maybe reselling it to someone that could use it. I planned on upgrading to the hardened stator anyways so that will fix the issue seen in the picture. I could not get any further yesterday with the tear down so during the week I will keep reading through the material I have and hopefully next weekend at least pull the pan and maybe get a better idea as to what code is on the valve body of this thing and maybe pull the pump out and get a better look inside. I will be getting a lockup converter because I do want to be able to drive this down the highway and since about 20min of my commute to work is highway I would like to be able to get as much economy out of it as possible and not wear out the engine with the higher rpm.

It doesn't seem that too many people have come across this CHF code so I am rather interested in finding out more about it.
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  #27 (permalink)  
Old 10-15-2012, 09:55 AM
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After thinking I may not run a lockup converter. I used this site Performance Probe
to show my speed and rpm from gear ratios and it says that in fourth doing about 70mph I should be close to 2200rpm which would be fine for me.

Im gonna be running 255/60R15 for tires and a 3.73 rear gear
and after plugging in the trans ratios im rather happy with the results. Definitely something to think more about though.

Anyone else wanna chime in on pros/cons of running the lockup in my application?
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  #28 (permalink)  
Old 10-15-2012, 10:41 AM
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When my convertor locks up at 45MPH, it drops 400 RPM's from 1500 to 1100.

I'm pretty sure the calculator you used did not take torque convertor slip into its results.
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  #29 (permalink)  
Old 10-15-2012, 10:51 AM
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Originally Posted by 123pugsy View Post
When my convertor locks up at 45MPH, it drops 400 RPM's from 1500 to 1100.

I'm pretty sure the calculator you used did not take torque convertor slip into its results.
ahhhh I forgot about that. That will definitely have to add probably a couple hundred rpms to the equation
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  #30 (permalink)  
Old 10-15-2012, 12:56 PM
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What would be the benefit of not having lock up? (Something I've never considered or know nothing about.)

Wouldn't a high stall convertor have more slip at cruise speeds more so than stock making lockup more attractive?
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