Guest bigjim240z Posted June 5, 2002 Share Posted June 5, 2002 ok..im going to put the small block 350 in my 240z...now im concerned with my transmission choice..i have the jtr manuel...they suggest the 700r4 if going automatic...but i know the 350turbo trans is not only cheaper..but easier to get parts and install...if i used a r200 with 3.54s will it run on the freeway ok...or will i be tacking high rpms?..i also thought about a t-5..im not sure yet...but it looks like the slave and clutch master are a pain in the a$$...so im unsure...any answers are appreciated..thanks jim Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 5, 2002 Share Posted June 5, 2002 The 2004R is a 3 speed automatic with overdrive that has a lower first gear and higher overdrive than the 700 R4. If you search the internet, parts are about as cheap and plentiful for the GM overdrives than the older turbo hydramatics.The 2004R is more narrow and easy to fit and a favorite with drag racers and can be bought at around $200.00 Quote Link to comment Share on other sites More sharing options...
utvolman99 Posted June 5, 2002 Share Posted June 5, 2002 Well assuming no slip and 24" tires you would be turning about 3500 RPM at 70MPH with the turbo 350. Calculator The 200R4 and 700R4 are both options if you go auto. As Tomahawk pointed out there are some advantages to going with the 200R4 such as a better gear distribution and smaller size. If you are not going to be making that much hp (around 300) I would go with the 200R4. If you plan on making upwards of 400 hp I would stick with the 700R4. Both trans can take the power but it is much easier to set up a 700R4 to take the abuse. Also keep in mind that they have not made the 200R4 for quite some time. If you are going with a stick the same kind of applies between the T-5 and the T56. The world class T-5 is a good choice for under 350HP but after that you probably want to start looking at the more expensive T56. There are a couple of guys running big time hp through a 200R4 so it can be done. Quote Link to comment Share on other sites More sharing options...
Guest bigjim240z Posted June 5, 2002 Share Posted June 5, 2002 well 3500 rpm isnt that bad on the freeway...but i will kill some gas mileage..lol...what year and make of car does the 200r4 come in?..thanks again guys..jim Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted June 5, 2002 Share Posted June 5, 2002 Originally posted by pipelayer:...3500 rpm isnt that bad on the freeway... Unless its 3500rpm's for an extended time, such as on a trip, and on a hot day. The Z's floorboard heats up plenty and that is with the stock inline 6. I have a stock 78z w/the stock 4spd (Yea,I know-I didnt think 4spd's were still being used in 78 either) and it's 1.0:1 direct drive 4th is a killer during the Texas Summers. My A/C works but A/C wont do anything for the bottom of your foot when the floorboard heats up due to extended excessive rpm's. If you can hold out for an AOD trans I think you'ld be very glad you did; watching your rpm's drop from 3500rpms to 2400 or 2500rpm's is very gratifying. Not only will it minimize the floorboard heat but will also save on extra wear and tear to the engine. Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 5, 2002 Share Posted June 5, 2002 run dynamat xtreme like tons of it on firewall tunnel floor and 3k freeway is like a lexus, that four speed fl327 guy did and wont give up the four speed anymore. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 6, 2002 Share Posted June 6, 2002 Where to find a TH200-4R: '84-'88 Chevy Monte Carlo '84-'87 Chevy Malibu '86-'90 Chevy Impala '83-'88 Olds Cutlass '81-'90 Olds 88 or 98 '84-'87 Pontiac Grand Prix '83-'87 Buick Regal The TH200-4R is the same size as a TH350 but the rear mount is located approx. 6 1/2" further back (same distance as the TH400). Both the TH350 and TH200-4R use the same flexplate and a 27 spline output shaft. Ratios for the TH200-4R are 2.74, 1.57, 1.00 and .67. Ratios for the 700-4R are 3.06, 1.62, 1.00 and .70 Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted June 6, 2002 Share Posted June 6, 2002 Just a side note. TH200-4R's work just fine behind 450+hp turbocharged Buick V6's and since the Z is a lot lighter than a Regal, handling horsepower shouldn't be a problem. Quote Link to comment Share on other sites More sharing options...
utvolman99 Posted June 6, 2002 Share Posted June 6, 2002 Quantrex To me the difference between a 200R4 and a 700R4 is like the difference between turbo charging a straight six or replacing the six with a sbc. 1. Both have been proven to work 2. There is more documentation for the 700R4 3. You will always have more potential in the 700. 4. The 200 weighs a little less 5. With the same amount of money invested the 700 is stronger every time. Quote Link to comment Share on other sites More sharing options...
Lewis Maudlin Posted July 25, 2002 Share Posted July 25, 2002 Since the 700 is beefier, it is better. I had a 350hp engine and chewed up 700R4's like it was nothing. I ended up purchasing one from Raptor Transmissions for almost $2000. It holds up to my 400hp engine. Make sure that you get a 700 that will hold up. My buddy got one in his firebird with a warranty. Six months later he needed a new one. You get what you pay for. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 26, 2002 Share Posted July 26, 2002 To further muddy the waters, Scottie-GNZ runs a 200 from the turbo GN package and I don't recall him complaining after putting over 500 ft/pds to it. *shrug* Regards, Lone Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted July 26, 2002 Share Posted July 26, 2002 I have heard reports that the Buick 2004R is a better choice of this line and the turbo charged Buick Grand National 2004R is the best and is loaded with performance parts. Cadillac shifts the best due to slippage. Also there were a few high performance cars such as Hurst Olds and Chevy Monte Carlo SS that had built 2004Rs . There is also many built up 2004Rs for sale on websites for over $1000. The 200 4R tranny does not eat up horse power like a 700R4 is reported to do and wilol last with the right Grand National parts. Also do not get the 2004R transmission confused with the 200 which was a waste of GM metal. Quote Link to comment Share on other sites More sharing options...
Phantom Posted July 26, 2002 Share Posted July 26, 2002 I vote for the T-56. Using a newer one with the .50:1 overdrive 6th gear and a 3.7:1 R200 my car will be turning 1750 RPM at 70 mph - half the numbers above - means a lot longer engine life and a much quieter ride. Quick downshift to 4th and its at 3500 rpm and the car is gone like a shot. Quote Link to comment Share on other sites More sharing options...
Heavy Z Posted July 27, 2002 Share Posted July 27, 2002 Ok, as opinions are flying I'll give my two cents. I am set up with a with a T5 at the moment and when it fraggs I'll be 700 bound, with a manual shift kit so it still isn't full auto. I am convinced that JTR says to go with the 700 for a few good reasons. The top of my personal list has to do with shift times versus speed potential, and a well-prepped V8z winds up faster than average thanks to the weight savings. What slows you down the most in a V8Z is probably going to be your ability to shift quickly, and if you go manual get ready for some exercise if you drive hard. An auto can give you lightning fast shifts and limit your human lag, plus you get an overdrive, which you will need. Good luck, Heavy Z Quote Link to comment Share on other sites More sharing options...
biohzrd Posted July 28, 2002 Share Posted July 28, 2002 i've heard mixed thoughts on both the 200r4 and the 700r4. around here most of the people who are running overdrives use the 200r4. the gearing is not so radical and they can be built to handle the same hp a th350 can. i know a couple of guys running into the 700hp range on thier 200r4's with know problems. on the other hand i only know of one 700r4 that is holding up. in the end i don't think you can really go wrong with either as long as it's built correctly. Quote Link to comment Share on other sites More sharing options...
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