Psycho_91Camaro

Ok so I have a 91 Camaro 700r4 Transmission, my question is.. lets say I wanted to race some person, On my car it has D for drive and a D circled for overdrive I asuume then it has a 2 1
my question is, when I take off, do I shift it directly to the 1 or 2? or is it 2 then 1 ?


I don't know if im doing it right, going from 2 to 1??

How do you shift it correctly so I get the most speed?

Psycho_91Camaro

can anyone pleeeeeeeeease help me??

Precision Trans

Psycho:

If this is for real, then think back to your kindergarden days. It's "1", "2", "3", "4". And you get a gold star!!

Don

DJP87Z28

For the people who should not be driving cars, just leave it in (D) Drive. Also don't race, you sound like accident waiting to happen. Cute username, it sure fits.

91Z28-350

This reminds me of that history channel special.

Just keep it in D and let the tranny do it's work. You're probably going to miss a shift and end up in D anyway.

Psycho_91Camaro

GREEEEEEEEEEEEEEEEEEEEEEEEEAAAAATTTTTTTTTT!! WEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

GTA matt

iTrader: (1)

I just figured I'd respond to that history channel special. Those old fools didn't know what they were doing. The one guy said he shifted into 3rd too soon and thats when he got passed. Sorry, you can't shift into 3rd too soon. If you go from 2nd to 3rd at WOT, it won't shift until the governor lets it at 5000. Just leave automatics in Overdrive!!!! Thats why they call them automatics

Chrome

400Z28Racer

iTrader: (4)

you are totally right one of those idiot does not know what is the diffrence between LT1 and TPI
check this link http://cgi.ebay.com/ebaymotors/ws/eB...tem=4531513693

Fast355

iTrader: (2)

BTW the stock shift point on most 700r4s and even TH350 is 4,200-4,500 not 5,000. I believe only the vette and s10 and s10 blazers w/ 2.8 got the 5,000 rpm governor. The problem with most 700r4s is they shift 1-2 @ 4,400 and 2-3 @ 3,800 or so. If you just let it shift it will cost you alot of acceleration. That is assuming you have a motor that actually makes some power at the higher rpm and can take the abuse. I always had to shift mine manually to run it. That was before I changed the governor weights and springs to make it shift @ 5,500 out of 1st (50 mph) and 4,900 (85)out of second. Nothing like a big van screaming 4,900 rpm in 2nd blowing some **** burner off the road. With the stock 4,400 rpm upshift I would have been at 40 and the engine would have dropped back in RPM too far. Shifting at 3,800 rpm and 65 mph would have brought the rpm in 3rd gear down to 2,300 rpm and performance would have suffered badly.

Thirdgen89GTA

iTrader: (5)

I dont' agree with the 4,200rpm and 3,800rpm. Or at least my experiences aren't the same as yours.

My trans when stock shifted at about 4,500rpm on the factory tack every time. 1-2, and 2-3 were always at 4,500rpm till the trans finally gave up.

My new trans has a stock governer, but a shift kit, vette servo, .500" boost valve, 2,200rpm stall and a complete rebuild but still shifts about 5,000rpm.

I need to work on the governor so it shifts about 5,500rpm when I get the LT1 intake on to compliment the rest of my mods.

Fast355

iTrader: (2)

I am dealing with truck transmissions behind carbed or TBI 305 or 350 engines.

A guy I work with has a 92 RS that shifts at the same speeds. 4,500 into 2nd and less than 4,000 into 3rd.

I wish I knew an easy way short of pulling the valve body to make mine shift at 5,500 out of both first and second.

I am guessing that GM did this on their lower powered engines so that they would upshift even in the worse conditions. That would be something like full throttle and uphill. My guess is that had they kept the 4,400 rpm shift point the transmission might not have shifted unless you let off when going uphill or into a head wind or similar.

GTA matt

iTrader: (1)

Ummmm....these were L98's they were using. they shift right at 5000. Unless your using a 700 out of a 6.2 diesel, the stock trans in a TBI car shifts at 4500. Believe me, I know.

RBob

iTrader: (1)

Sounds like a TBI '92 RS. They are a low rev'ing engine. For the 5,500 RPM shift try a governor out of a '90-'92 3.1l V6 Camaro/Firebird.

RBob.

dimented24x7

iTrader: (2)

Stick it in first. When the engine gets to around 5k, stick it in second. When the engine gets to around 4.5k in second, stick it in third.

When the trans is in 'OD', you have 1st, 2nd, 3rd, and 4th with little or no engine braking. In 'D' youll have 1st, 2nd, and 3rd with engine braking. In second itll be 1st and 2nd with engine braking. Ins first, well, you have first. Under most driving conditions, The trans will still shift automatically but wont shift any higher then the gear thats been manually selected.

HalfInchWrench

Auto's shift fine on their own. You will have to be awfully good at shifting it down the track if you can cut a better time that way. I haven't seen anyone do it no matter a turbo 350 a 700 or a 4L60. If you like shifting gears then you would have been better off with a stick.

Pro Built Automatics

Depending on what engine & transmission & vehicle combination you got from the factory, you could have shift points as high as 5,800 rpm, and as low (except diesels) 4,400 rpm at WOT.

Fast355

iTrader: (2)

Its like my scenario, I had the 4,500 rpm governor that actually shifted 2-3 @ 3,800 and a 305 that made peak HP at about 6,000. It made a huge difference when you manually shifted it.

hotrod87camaro

6 grand with a 305? mine sounds like its about to blow at 5500 but its also got about 200,000 miles on it and its been driven hard, so i guess its possible.

86IROCTHD

in my iroc with 3.08 rear gears and a 700r4 i would have it shifting about 5800 with the bottle....

MaxxMitchell

iTrader: (4)

My old '87 2.8 + 700R4 would shift at 5,200 +/- 100rpm every time at WOT

EvilCartman

iTrader: (1)

A person might be able to get a quicker time shifting it on their own instead of letting the trans do all the work. If I were to leave mine in Drive, there's no way I'd run the times that I am. In drive it shifts way too low even at full throttle so I manually shift it anywhere from 6800 to 7000 rpm. Hundreds of thousands of people manually shift their autos, guess they all need to drop in a stick shift

Psycho_91Camaro

So what your saying is, if your going to shift your auto tranny, then get a MANUAL TRANSMISSION. Although Automatic transmissions are made to shift automatically, people still shift thier auto transmissions, wont this damage the transmission over time?

EvilCartman

iTrader: (1)

HalfInchWrench was saying people who manualy shift an auto should get a stick shift and I rolled my eyes at that idea (ie dumb idea). As for damage to the transmission by manualy shifting it, I've never had a problem and never heard from friends of any problems. The only things I can think of off hand you could do by manualy shifting your auto is accidentally go into neutral, reverse or park with a stock shifter or some other aftermarket shifters. It's just about impossible to do that with the shifter I have. Maybe Pro-Built or any other professional will step in and shed some light on risks of manual shifting.

CrazyHawaiian

Before saying its a bad idea to want to shift an auto manually, I gotta ask why? Are you talking straight line racing or a roadracing situation or something where you also have to downshift? If its just for going straight, you're better off setting up the trans to shift how you want automatically. You can change when it shifts and how hard and get it to shift the way you want consistently. Or if you're talking roadracing or something I'd say best bet is to get rid of the computer controlled shifting and install a manual valve body. Buf if your trying to roadrace with an auto, think about getting a manual.

80smetalfan

My 91 700 never automatically shifts at 4500 in any gear, regardless of throttle. Never did when it was stock, never does now. And this is in a TBI Camaro of the exact same year. Maybe just a flaw, as the vehicle does have 195,000 on it's stock 700, but it never has.

My 85 700 that I have in a g-body is a totally different story though. However, it's carburated, and not exactly the same, lol.

I wouldn't say that the manual shifting does any damage, and in fact I would recommend it over letting the 700 shift automatically. I don't have any science to support that, but both of my 700's work pretty well for how hard they've been driven, and that '85 has over 286,000 miles on it with much manual shifting in that lifespan.

htown_89bird

LoL, my 89 L98 wont shift untill 5800-6000 rpms at WOT everytime at the track; otherwise its fine. This is of course shifting it manually from 1st to drive.... Best time yet was when i let the automatic do the shifting itself. Even then it didnt shift to the next gear untill reaching 5200-5600 rpms..... L98/700r4 only mods are full exhaust (long tube headers, 3in exhaust), all smog equip deleted and k&n air filter.

Fast355

iTrader: (2)

Thats right where the 2.8 TBI 700r4 shifts in my 1987 Jimmy 4x4.

Z's r Best

My Z28 (305 HO w/700r4) and my IROC (305 TPI w/700r4)both shift at 5500 rpm on the dot with the pedal to the floor. Okay for the Z but the IROC would be better off shifting at 4500 since it starts gasping for air around 4600 to 4700 rpm. Stock 700r4's as far as I know. I just put a rebuilt 700r4 in the IROC and it was not an F-body transmission (tail section did not have the holes to bolt up the bracket for the torque arm - had to use my old tail section) and it shifts at 5500 rpm when the pedal is on the floor. However, it is supposed to be a "higher performance" 700r4 so they probably took the truck/van governer out of it during the rebuild. Hopefully in about a month I'll find out what rpm the red IROC shifts at with the pedal down.

Big454blockchevy

Funny reading some of the replys. It all depends what kind of power your putting down and if you've got a shift kit , good internals . On a stock 305 I would probably just allow the tranny to shift on it's own but on a moddified engine(good power up top), moddified tranny I would surely shift it manually. I would never go to the track , let the tranny do the shifting and expect good e.ts . Now if it was an lt1 ,( stock tranny) I would allow the pcm do the shifting but that's another story.

Cadillac

This one almost comes up as much as, "how do I make my 305 faster?"

One example

pvt num 11

I typically let the transmission sort it all out. But when I want to slow down, I use the tranny to provide additional braking force, by downshifting it. Before I fixed the brakes on the GTA, that was just how I drove it. The TTa, however, has much better brakes so I don't have to worry about it, and heck, it makes gobs more power so I just let it figure out where it wants to shift and call it good. Autocross? I left it in second. Since I never saw anything over forty miles an hour, I was fine. (slow course, lots of cones!) When I was with CrazyHawaiian, he left the car in first while drifting, and drifted to his hearts content - L98 torque is a good thing for busting tires loose, eh? (not to mention throwing me around the interior like a rag doll...)

atransmission

There are no (D)umb questions
http://700r4.info