Question about Tq converters
Thread Starter
|
Senior User
Joined: Aug 2004
Posts: 498
Likes: 0
Question about Tq converters
Im geting ready to put a C6 with a shift kit into a 1966 F100 with a 352 , Presently I have a 3:54 rear end ratio which even with 30 inch tires will run the rev's pretty high, I do some towing of my boat which is arounf 2,200 lbs tow weight, I Am thinking about droping the rear ratio down to 3.08 gears, my question is what stall speed Tq converter should I use. This is not a race car it's a dayly Driver and used to get to the lakes sometime's. I presently have a 3 speed overdrive manual that is losing 2nd gear and the clutch is going also. I have not liked the clutch on the boat ramp and am looking forward to the auto. i just want to get the correct converter for the job. I rarely see over 3000 rpms.
I thank you in advance for any info you can share as Stall speeds is somthing I know nothing about.
I thank you in advance for any info you can share as Stall speeds is somthing I know nothing about.
Last edited by jav409; Oct 30, 2005 at 09:40 PM.
Post Fiend
Joined: Jul 2003
Posts: 11,945
Likes: 3
From: Spokane, WA
The stall speed is really going to depend on the cam and build of your engine. When people install a converter with a higher stall it's to allow the engine to get into an RPM range where it's producing more power before it stalls. "built" engines with larger cam profiles might not start producing power until 2000,rpm 2500, 3000 or with race built motors even higher. Therefore the stall speed is matched to the RPM where the cam is producing power. I'm guessing, based on your statement about rarely seeing over 3,000rpm that you're not running a really built setup. If the motor is stock, or relatively close to stock go ahead and run a stock converter, which will probably stall between 1200-1500rpm. If you have an aftermarket cam post up the cam number or profile here and we can tell you which stall you'll need. Hope that helps.
Thread Starter
|
Senior User
Joined: Aug 2004
Posts: 498
Likes: 0
Thanks a bunch, no shes basicly stock, holley 500 cfm 2v, dual flowmaster, and pertronics ing,someday maby a set of headers and a performer intake with 600 holley but thats about all. not a hotrod by any means. havent desided yet, I have a 460 and C6 still at my storage in Sac but wont be grtting that up hear till spring and it will need a rebuild, if I do a hotrod motor that will be the one.
Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
You can get away with a stock converter. Converters need to be matched to the cam in the engine. You could even run a coverter with a lower stall and that would help cut rpms ant cruise. around 300-400rpm, for a mileage/towing converter.
Thread Starter
|
Senior User
Joined: Aug 2004
Posts: 498
Likes: 0
Originally Posted by kopfenjager
You can get away with a stock converter. Converters need to be matched to the cam in the engine. You could even run a coverter with a lower stall and that would help cut rpms ant cruise. around 300-400rpm, for a mileage/towing converter.
most of the parts store's I have seen online list a stock converter, where would I find a lower one ?
thanks.
Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
Trending Topics
Post Fiend
Joined: Jul 2003
Posts: 11,945
Likes: 3
From: Spokane, WA
Be careful you don't get your stall too low or you'll have a really hard time getting moving if you're pulling a load.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Laughing Gas
Joined: Feb 2003
Posts: 1,234
Likes: 3
From: In the woods of Oregon
I deal with oregon performance transmission. They have a store on e-bay. They were realy helpful in helping me get the right parts for my trany rebuild. And yeah you can always have to much of a good thing. If you don't have the torque down low to pull the stall than it can hurt more than it helps.