Cherry
DREAD NAUGHT
Heard so many opinions about how strong a 200r4 is over a 700r4,, my 700r4 shifts too fast out of 1st, is there a longer duration in the 200r4 pattern of gears? anybody running the 200r4 that likes it better and why?
what to get out of a 200r4
- Thread starter Cherry
- Start date
Twin_Turbo
Der Maulwurf
- Joined
- Mar 5, 2008
- Messages
- 7,579
Yes, it doesn't have the stupid short 1st
200-4R (4L40) 2.74 | 1.57 | 1 | 0.67
700-R4 (4L60) 3.06 | 1.63 | 1 | 0.7
And the 4L80: 2.48 | 1.48 | 1 | 0.75
200-4R (4L40) 2.74 | 1.57 | 1 | 0.67
700-R4 (4L60) 3.06 | 1.63 | 1 | 0.7
And the 4L80: 2.48 | 1.48 | 1 | 0.75
Cherry
DREAD NAUGHT
So what are the shiftkits,, like transgo and B&B and so on.. what are the positive solutions? I've heard adding spraggs, different servo's?
turtlevette
The Turdle
i don't think the 200 is stronger. It is lighter and fits better with more evenly spaced ratios.
SIXFOOTER
Well-known member
The Transgo Shift Reprogramming Kit does several things: It rerouts some hydrailics, changes pressure on the pump and changes spring pressures on the accumulators. All in the interest of more positive faster shifts. It allows you to hold any gear to any RPM also.
The servo upgrade (Super Servo) has a larger surface area and stronger springs which allow it to hold more pressure on the 2nd gear band which gives a harder stronger shift into 2nd. There is also an upgrade for the band giving it more surface area further improving the hold in for 2nd.
The sprags didn't change in the kits, just got rebuilt.
The 2004R has a few advantages over the early 7004R: Its lighter, better gear ratios as stated above and has tougher internals, the early 700'd has lubrication issues, fixed in later units.
I have not driven my car since I built the 2004R for it, but did a LOT of research before dropping the hammer, it takes fewer mods to hot rod a 300 than a 700.
Cherry
DREAD NAUGHT
Thanks for the input... Seeing its setting on the floor and doig nothing,,, I thought I would have it built up as the 700 is not going to last. Thanks again.
Rich
Rich
mrvette
Phantom of the Opera
Rich....DIY, i'ts NOT that damn hard.....beeleemeeee....
I did it, and it's running fine for nearly 2 years now....
and I cruised at 150 with the top/windows down once too...without all that indecisive down shifting the 700 insisted on....
put in a front pump, converter, TRANS GO SHIFT KIT (and NO OTHER), TCC solenoid (don't ask just DO)....and of course a soft parts kit and wide heavy duty band.....let trans go take are of the servos and etc...they know WTF they are doing.....
Artsvettes
Active member
The 2004r is not hard to rebuild. Get yourself a manual and there is also a video available. And here is something you can read.
http://www.nastyz28.com/forum/showthread.php?t=87368
http://www.nastyz28.com/forum/showthread.php?t=87368
73 Mike
I'll drive it someday
mdbelanger
Almost broke my 3rd.....member
Has anyone bought this manual??
http://www.ckperformance.com/resources/GM2004RTECHNICALMANUAL.html
Is it worth $65.00. I have a few others but nothing that gets into he upgrades there just basic rebuilds.
Michael.
http://www.ckperformance.com/resources/GM2004RTECHNICALMANUAL.html
Is it worth $65.00. I have a few others but nothing that gets into he upgrades there just basic rebuilds.
Michael.
Cherry
DREAD NAUGHT
thanks a bunch for the input, I've got so much home work. Like going back to school,, its a real challenge.
BRUTAL64
Neanderthal
TH200R4 is stronger. That is why they put that trans behind the Turbo V6 Buicks
turtlevette
The Turdle
i stand corrected. That's what i get for thinkin.
i was able to burn up the 200 in about 4 years in the GN.
mrvette
Phantom of the Opera
DAMN good reliability as I bet that boost was cranked a good bit too.....and a 4000 lbs car too boot.....
especially for a mainly stock unit.....they did some tricks for it at GM so I understand.....
my 200 has been on the ground running for 3? years now....Danny?? Danny and I talked it over for about an hour when we were doing our builds....
unlike other here, I refuse to have my car on the stands longer than 6 months.....
gotta get my sunburn up to snuff....
:devil::devil::clobbered:
turtlevette
The Turdle
i put a bleed off valve in the wastegate feedback/control circuit and ran 20 pounds. That car was FUN.