700R4 speedo and tv questions... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72driver · 08-10-2006, 01:32 PM

Hey all, Just want to say quickly Great site. I refer to this very often. I am building a 72 shorty 2wd, 355ci, 700R, everyday driver. I am not real sure on what tooth gear I am needing to run in order to show right on my speedometer. Any help would be greatly appreciated. Also on the TV cable, I am running a holly 4160 carb with the correct holly throttle and TV bracket, and geomtry corrector that bolts on to the carb. Setting my tv cable seems to be a little difficult. Any one have the same issue? Thanks again for any insight.

MISTERSHOTGUN · 08-10-2006, 08:18 PM

Same problem here setting the t.v. Mine shifts early so I baught a lokar shifter and I just manually shift. Seems that no matter where I set the t.v. it just shifts early... is it too far out... in I dunno.. frustrates me so I gave up and grab the stick... I hope that is not bad. I have the edelbrock Performer with the t.v. shift correction also..

PanelDeland · 08-10-2006, 09:07 PM

I don't know about manually shifting but there are several members on this BB that recomend having a tranny shop properly set up your TV cable.There are some issues concerning line pressure and tranny life.There should be more info if you do a search.
Anyways here's a ttt

Longhorn Man · 08-10-2006, 09:10 PM

if it ain't dead on, it'll die within 20,000 miles. The line pressure must be dead on to prevent this.

chevymad · 08-11-2006, 12:48 AM

I just worked through this issue on my truck. Even using all the holley parts the tv cable will not be set up correctly. If you set the cable to have proper line pressure off of idle it will limit full throttle. And if you set it for full throttle, the line pressure and shifts are messed up. Even with the tv corrector there is 1/4" more travel in the holley linkage then on the stock quadrajets.

I finally got fed up and bought the TV made easy kit from Bowtie overdrives. Spendy but it works perfectly.

jamon8 · 08-11-2006, 09:02 AM

make sure that you get the proper bracket

I started typing everything but this is easier

http://sethirdgen.org/tvcable.htm

08-10-2006, 01:32 PM	#1
72driver Registered User Join Date: May 2006 Location: Columbia, MO Posts: 16	700R4 speedo and tv questions... Hey all, Just want to say quickly Great site. I refer to this very often. I am building a 72 shorty 2wd, 355ci, 700R, everyday driver. I am not real sure on what tooth gear I am needing to run in order to show right on my speedometer. Any help would be greatly appreciated. Also on the TV cable, I am running a holly 4160 carb with the correct holly throttle and TV bracket, and geomtry corrector that bolts on to the carb. Setting my tv cable seems to be a little difficult. Any one have the same issue? Thanks again for any insight.

08-10-2006, 08:18 PM	#2
MISTERSHOTGUN Registered User Join Date: Apr 2005 Posts: 95	Re: 700R4 speedo and tv questions... Same problem here setting the t.v. Mine shifts early so I baught a lokar shifter and I just manually shift. Seems that no matter where I set the t.v. it just shifts early... is it too far out... in I dunno.. frustrates me so I gave up and grab the stick... I hope that is not bad. I have the edelbrock Performer with the t.v. shift correction also..

08-10-2006, 09:07 PM	#3
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,992	Re: 700R4 speedo and tv questions... I don't know about manually shifting but there are several members on this BB that recomend having a tranny shop properly set up your TV cable.There are some issues concerning line pressure and tranny life.There should be more info if you do a search. Anyways here's a ttt __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

08-10-2006, 09:10 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: 700R4 speedo and tv questions... if it ain't dead on, it'll die within 20,000 miles. The line pressure must be dead on to prevent this.

08-11-2006, 12:48 AM	#5
chevymad Registered User Join Date: Jan 2001 Location: skamokawa, WA, USA Posts: 527	Re: 700R4 speedo and tv questions... I just worked through this issue on my truck. Even using all the holley parts the tv cable will not be set up correctly. If you set the cable to have proper line pressure off of idle it will limit full throttle. And if you set it for full throttle, the line pressure and shifts are messed up. Even with the tv corrector there is 1/4" more travel in the holley linkage then on the stock quadrajets. I finally got fed up and bought the TV made easy kit from Bowtie overdrives. Spendy but it works perfectly. __________________ 70 C10 long fleet, 355/200 4r, 6 lug disc conversion, 3" drop 70 gmc changed to 67/8 chevy, 454 with voodoo cam, th400, all 74 running gear.. in progress

08-11-2006, 09:02 AM	#6
jamon8 Registered User Join Date: Apr 2006 Location: southern Il Posts: 335	Re: 700R4 speedo and tv questions... make sure that you get the proper bracket I started typing everything but this is easier http://sethirdgen.org/tvcable.htm

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