Transmissions and Drivetrain Need help with your trans? Problems with your axle?

700R4 Converter Selection

Thread Tools
 
Search this Thread
 
Old 07-08-2008, 12:23 PM
  #1  
Member

Thread Starter
 
brian schuetta's Avatar
 
Join Date: Sep 2006
Location: san antonio tx
Posts: 104
Likes: 0
Received 0 Likes on 0 Posts
Car: 83' Camaro, 88' TPI 350 Firebird
Engine: 383
Transmission: th350
Axle/Gears: 12 bolt w/ 5.13s or 4.56s
700R4 Converter Selection

Have a 88' Formula 350 with a 700R4. Thinking about a higher than stock stall converter. It will have a mostly stock TPI with a cat back, MSD distributor and 6-AL, shorty headers. I'm working on a set of Engine Quest Vortecs 180 cc for this engine. Cam is a possibility. I need a lock-up converter right? Is it as simple as just installing the converter or are there other parts to make this work? Not talking about coolers or engine components.
Old 07-08-2008, 06:09 PM
  #2  
Junior Member
 
TUNGSTEN's Avatar
 
Join Date: Jan 2007
Location: Decatur Texas
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Engine: 355
Transmission: 700r4
Axle/Gears: 3.73 Trutrac
Re: 700R4 Converter Selection

Yes you will need a lock converter.
Old 07-08-2008, 07:49 PM
  #3  
Junior Member
 
whiley's Avatar
 
Join Date: Mar 2008
Posts: 57
Likes: 0
Received 0 Likes on 0 Posts
Re: 700R4 Converter Selection

Originally Posted by brian schuetta
Have a 88' Formula 350 with a 700R4. Thinking about a higher than stock stall converter. It will have a mostly stock TPI with a cat back, MSD distributor and 6-AL, shorty headers. I'm working on a set of Engine Quest Vortecs 180 cc for this engine. Cam is a possibility. I need a lock-up converter right? Is it as simple as just installing the converter or are there other parts to make this work? Not talking about coolers or engine components.
LOL yes, a cam would definitely help your engine run better but if you mean a hotter cam, then dont forget that the particulars of what cam you go with, factors in stall speed/torque converter selection, so you'll want to narrow that down first too
Old 07-08-2008, 08:31 PM
  #4  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,751
Received 369 Likes on 298 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: 700R4 Converter Selection

yep get a lockup and get a small converter, something like a 9-10 inch unit. they are more efficient. Spend the money on a decent one, its worth it. I love my Edge racing converters... i think they are still 500+ shipping these days, but not sure

With my bolt on L98, i went with a 2800 stall. Worked well enough to push that car to 12.90's. Launched harder than alot of more powerful cars out there. I was happy and it was streetable as can be.

I now have the same unit restalled to 3600 for my 383. So far i like it

Any stock to mild cam/heads motor should love 2600-3000 stall depending on what you want out of the car. Some strip time looking for good ETs then get alittle higher, like 2800 for a bolt on TPI car that sees some strip time or 2500-2600 for a more street driven daily TPI bolt on car

My 383 for mix between street/strip i went with 3600. could have gone 3800-4000 some say. More daily driver i would have chosen 3200-3400


as far as coolers go, its a nice addition but if you have stock cooler and arent racing it hard all the time you should be fine with stock cooler. i was
Old 07-09-2008, 08:48 AM
  #5  
Member

Thread Starter
 
brian schuetta's Avatar
 
Join Date: Sep 2006
Location: san antonio tx
Posts: 104
Likes: 0
Received 0 Likes on 0 Posts
Car: 83' Camaro, 88' TPI 350 Firebird
Engine: 383
Transmission: th350
Axle/Gears: 12 bolt w/ 5.13s or 4.56s
Re: 700R4 Converter Selection

When you say "bolt on TPI car", what exactly are you bolting on? I'm trying to get this thing to run 14.2 here in El Paso at 4200' elevation. First I need to tune it up and get it running right. I haven't been able to hook the car on the temporary strip at the airport we had so it has been running 16s. A track in New Mexico has a Modified class with a 14.50 break which I want to run when we start racing again in the fall ( no lights at track so they shut down for the hot summer months) I have 8 x 26.0 slicks for this car I have never tried. It ran 15.0 at Las Vegas a few years ago. So I'm trying to come up with a combo to deal with the higher altitude here. Thought a converter would help me get closer to where I want to be.
Old 07-09-2008, 05:45 PM
  #6  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,751
Received 369 Likes on 298 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: 700R4 Converter Selection

i'm not sure what my old combo would do up your way, but when i say bolt on TPI, i mean intake upgrades and other small easy bolt on parts like pulleys, rocker arms, exhaust etc

I had a stealth ram intake, underdrive pulleys, 1.6 rockers, full exhaust/suspension, 2800 stall, 3.42 gear and 26x10 slicks and skinnies up front and ran 12.95 at 103.8 at 188ft Density Altitude. I'm at 1200 ft elevation but the air quality in the summer has the density altitude upward of 3000 ft. In those conditions my car ran 13.4's i think it was. If you got altitude of 4200 on todays weather conditions of 73 degrees and 30.02 inches of HG, then your DA would be 6256 ft. I would think my car would be mid lower 14's at that height but i have no idea.

NHRA correction factors put me at about second slower at 5500 ft and thats all they give for corrections. I'd be somewhere in the mid high 13's i think up there at 5500 ft. If i take my 3000 ft DA times as sealevel and correct to 3200 ft higher then i guess that is like correcting to 6200 and means my 13.4's become 13.90's so i'm not sure.

For you tho, i'd start with full bolt ons, prefferably HSR/Miniram/Superram or lastly a heavilysiamesed SLP runner tpi setup. HSR/miniram breath best and will respond well to cam choices if you need to upgrade cam alittle to reach your goals.

Try converter first tho. from stock with exhaust to full bolt ons you can not go wrong with 2800 stall
Old 07-10-2008, 11:11 AM
  #7  
Member

Thread Starter
 
brian schuetta's Avatar
 
Join Date: Sep 2006
Location: san antonio tx
Posts: 104
Likes: 0
Received 0 Likes on 0 Posts
Car: 83' Camaro, 88' TPI 350 Firebird
Engine: 383
Transmission: th350
Axle/Gears: 12 bolt w/ 5.13s or 4.56s
Re: 700R4 Converter Selection

Any mods to the 700R4? Govenor kit? Did you leave it in Drive or OD? Shift points? Did touch the servos? Any information is appreciated. thanks.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
12-10-2019 07:07 PM
RyanJB
Members Firebirds
39
11-20-2018 03:30 PM
plm99
Southern California Area
5
11-16-2015 05:21 PM
1Aauto
Sponsored Vendors
3
10-05-2015 03:14 PM
Hotrodboba400
Firebirds for Sale
0
09-02-2015 07:28 PM



Quick Reply: 700R4 Converter Selection



All times are GMT -5. The time now is 10:38 PM.