Bronco Hut    

   Ford Bronco Parts - Classic Vintage Early Bronco Parts   Toms Bronco Parts   BC Broncos
Community
 Message Forum
 Photo Gallery
 Event Calendar
 Book Reviews
 Bronco Wallpaper
 Bronco FAQ
 Link Back to CB!
 600+ Bronco Links!
 
Search all Bronco Links
Buy / Sell
 Classifieds / Want Ads
 Vendor Forum
James Duff
Rust Bullet
Sexton Offroad
Bronco Tech
Recent Tech Articles
 •Holley Carb Tips
 •Aussie Locker
 •C6 203 205 Doubler
 •4 Link
 •Clutch Replacement
 •Early Turn Signals
 •C4 Improvements
 •Threaded Dipstick
 •NV3550 5 spd
     More Tech...
Ford Bronco Parts - Classic Vintage Early Bronco Parts

Welcome to the ClassicBroncos.com Forums.

You are currently viewing our boards as a GUEST which limits your access to viewing only. To take advantage of all the forum features please take a moment to register. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact the admin. If you've lost your password click here.

Go Back   ClassicBroncos.com Forums > Archives > Bronco Chat - Archives

 
 
Thread Tools
Old 07/20/10, 05:26 PM   #1
SSDDBRONCO
Bronco Guru
 
SSDDBRONCO's Avatar
 
Nothin Like Livin In Cali... Stuck in Traffic!!

Los Angeles, Ca
Joined: Nov 09
Posts: 2,017

My Gallery
Garage
My Bronco Acceleration

Hey whats up. I was wondering why my bronco takes off pretty slow when i step on the gas. It is a stock 302 but has an exhaust, headers, new holly ta carb, c4 auto, 33 tires, 4.10 gears, and thats about it. Just wondering why it would accelerate slowly. What should i tune up or buy to make it accelerate faster. I know its not a Mustang Cobra but i have seen other broncos that are stock (like mods i have) and take off way more faster than mine does. Help and ideas would be great.
Thanks

1973 Ford Bronco: 302 with Holley Terminator EFI, Aeromotive Phantom 340 Fuel Pump, C4, Dana 44 & Ford 9 BB, 3.5 JD Lift, 35's MTZP3, blah blah blah...
SSDDBRONCO is offline  
Old 07/20/10, 05:51 PM   #2
DonsBolt
Bronco Guru
 
DonsBolt's Avatar
 
Chestnut Hill, Mass
Joined: May 05
Posts: 5,244

My Gallery
which TA the 470 or the 670? If it is the 670 might be too rich, does it smell like gas?

Also whats your timing set at, depending where it is set you could bump up the timing a little and get some more power out of it

[SIZE="2"][COLOR="DarkOrange"]1977 Bronco Ford Racing 5 Liter NV3550 456 Gears - 3.5 Suspension 35's

2017 Shelby GT350
DonsBolt is offline  
Old 07/20/10, 06:24 PM   #3
SSDDBRONCO
Bronco Guru
 
SSDDBRONCO's Avatar
 
Nothin Like Livin In Cali... Stuck in Traffic!!

Los Angeles, Ca
Joined: Nov 09
Posts: 2,017

My Gallery
Garage
i have the ta 470, and i never did anything to the timing since i bought it almost a year ago. Should i get it timed?

1973 Ford Bronco: 302 with Holley Terminator EFI, Aeromotive Phantom 340 Fuel Pump, C4, Dana 44 & Ford 9 BB, 3.5 JD Lift, 35's MTZP3, blah blah blah...
SSDDBRONCO is offline  
Old 07/20/10, 06:25 PM   #4
BronCowie
Contributor
Bronco Dawg
 
BronCowie's Avatar
 
Hillsboro, OR
Joined: Apr 07
Posts: 7,256

My Gallery
Garage
Is your C4 down shifting to 1st when you stop? If not, starting from 2nd or even 3rd gear will feel like your driving through mud trying to get up to speed.

Try shifting to the "1st" position instead of "D" and see if there is a difference from a full stop. If that is what's going on, let us know and you'll get a bunch of C4 trouble shooting advice.

DefendOurConstitution!

'69 Sport daily driver since 1993. Manual Steering, Manual Drum Brakes, Manual Choke, Pull For Heat, Alice Turn Signals and much more.
BronCowie is offline  
Old 07/20/10, 06:29 PM   #5
crab
Contributor
Bronco Guru
 
crab's Avatar
 
"Got Crabs Cage?"

Pacific City Or.(SOB
Joined: Feb 04
eBay: robnangi
Posts: 2,044
What kind of RPM's are you building between shift points? Could be Tranny/TC issues??

'73 RANGER CRAWLER
'68 427 EFI STROKER
'73 Sport (sold)
'73 Ranger (sold)
'70 Explorer (sold)
'77 rust bucket project
'77 Just a nice driver
"BEAT IT TO FIT....PAINT IT TO MATCH!"
crab is offline  
Old 07/20/10, 06:33 PM   #6
SSDDBRONCO
Bronco Guru
 
SSDDBRONCO's Avatar
 
Nothin Like Livin In Cali... Stuck in Traffic!!

Los Angeles, Ca
Joined: Nov 09
Posts: 2,017

My Gallery
Garage
Quote:
Originally Posted by BronCowie View Post
Is your C4 down shifting to 1st when you stop? If not, starting from 2nd or even 3rd gear will feel like your driving through mud trying to get up to speed.

Try shifting to the "1st" position instead of "D" and see if there is a difference from a full stop. If that is what's going on, let us know and you'll get a bunch of C4 trouble shooting advice.
well i recently put a lokar kick down cable thinking that it would help but is still the same and i do believe it does down shift to 1st.

1973 Ford Bronco: 302 with Holley Terminator EFI, Aeromotive Phantom 340 Fuel Pump, C4, Dana 44 & Ford 9 BB, 3.5 JD Lift, 35's MTZP3, blah blah blah...
SSDDBRONCO is offline  
Old 07/20/10, 06:39 PM   #7
SSDDBRONCO
Bronco Guru
 
SSDDBRONCO's Avatar
 
Nothin Like Livin In Cali... Stuck in Traffic!!

Los Angeles, Ca
Joined: Nov 09
Posts: 2,017

My Gallery
Garage
what kind of tranny problems do you guys think im running into??

1973 Ford Bronco: 302 with Holley Terminator EFI, Aeromotive Phantom 340 Fuel Pump, C4, Dana 44 & Ford 9 BB, 3.5 JD Lift, 35's MTZP3, blah blah blah...
SSDDBRONCO is offline  
Old 07/20/10, 07:01 PM   #8
broncnaz
Contributor
Bronco Guru
 
I.Y.A.A.Y.A.S.

Thatcher, AZ
Joined: May 03
Posts: 24,283
Timing may help slightly but it sounds more like a tranny slippage issue. Could be wear in need of adjustment ect. Might be a good idea to change the fluid and filter.

73 Ranger 2 1/2 lift 302 TFS heads NP435,PS,PDB, tierod over, 33x10.50x15 BFG M/T
71 Sport 63,000 miles all orginal except for cut fenders 302 3sp 4.11's D44/BBTrac lok rear
broncnaz is offline  
Old 07/20/10, 07:07 PM   #9
SSDDBRONCO
Bronco Guru
 
SSDDBRONCO's Avatar
 
Nothin Like Livin In Cali... Stuck in Traffic!!

Los Angeles, Ca
Joined: Nov 09
Posts: 2,017

My Gallery
Garage
Quote:
Originally Posted by broncnaz View Post
Might be a good idea to change the fluid and filter.
Already did that. Am i going to have to rebuild the tranny or no?

1973 Ford Bronco: 302 with Holley Terminator EFI, Aeromotive Phantom 340 Fuel Pump, C4, Dana 44 & Ford 9 BB, 3.5 JD Lift, 35's MTZP3, blah blah blah...
SSDDBRONCO is offline  
Old 07/20/10, 07:19 PM   #10
crab
Contributor
Bronco Guru
 
crab's Avatar
 
"Got Crabs Cage?"

Pacific City Or.(SOB
Joined: Feb 04
eBay: robnangi
Posts: 2,044
Did you install the Lokar kickdown because then tranny wasn't kicking down? To early to tell if you have tranny issues but sounds like it me. Should jump out of the hole if everything is working corectly.

'73 RANGER CRAWLER
'68 427 EFI STROKER
'73 Sport (sold)
'73 Ranger (sold)
'70 Explorer (sold)
'77 rust bucket project
'77 Just a nice driver
"BEAT IT TO FIT....PAINT IT TO MATCH!"
crab is offline  
Old 07/20/10, 07:21 PM   #11
SSDDBRONCO
Bronco Guru
 
SSDDBRONCO's Avatar
 
Nothin Like Livin In Cali... Stuck in Traffic!!

Los Angeles, Ca
Joined: Nov 09
Posts: 2,017

My Gallery
Garage
Quote:
Originally Posted by crab View Post
Did you install the Lokar kickdown because then tranny wasn't kicking down?
Well i installed it because the previous owner took off the kickdown and was manually shifting through the gears, which i have the B&M Quicksilver shifter

1973 Ford Bronco: 302 with Holley Terminator EFI, Aeromotive Phantom 340 Fuel Pump, C4, Dana 44 & Ford 9 BB, 3.5 JD Lift, 35's MTZP3, blah blah blah...
SSDDBRONCO is offline  
Old 07/21/10, 12:08 AM   #12
broncnaz
Contributor
Bronco Guru
 
I.Y.A.A.Y.A.S.

Thatcher, AZ
Joined: May 03
Posts: 24,283
You never know what a PO did or didnt do. But you might try adjusting the bands, and kickdown and shift linkage. Might also want to replace the seals on the servo as it could be leaking and causing the issue as well. Might want to check to see what servo it has as well. There should be a letter cast into the cover H or R is good anthing else kinda debateable but I'm pretty sure that broncos came with the H servo.
But in the end its probably about time for a rebuild.

73 Ranger 2 1/2 lift 302 TFS heads NP435,PS,PDB, tierod over, 33x10.50x15 BFG M/T
71 Sport 63,000 miles all orginal except for cut fenders 302 3sp 4.11's D44/BBTrac lok rear
broncnaz is offline  
Old 07/21/10, 12:50 AM   #13
1970mule
Bronco Guru
 
1970mule's Avatar
 
Shut your mouth when your talkin to me.

Joined: Dec 07
Posts: 1,502

My Gallery
almost sure its the TA, they are a pain if not impossible to properly tune. i never was able to get the dead spot out of mine so i went to EFI. will see how that works once i am done.

It's like giving a bunch of monkeys a hand gun and expecting good things to happen.
1970mule is offline  
Old 07/21/10, 05:33 AM   #14
Explorer
Bronco Guru
 
Explorer's Avatar
 
Raphine, Virginia
Joined: Mar 08
eBay: gfw1985
Posts: 4,390

My Gallery
Garage
I'd still check some simple stuff before sending to the tranny shop. Make sure you're getting full throttle travel and yes, set the timing.

66 half cab 203ci I6, Classic Inlines aluminum head and intake, DSII, Holley 390 cfm 4V, Isky cam, Keith Black flat top pistons, ARP studs, balanced, 9.7:1 compression
55 F100 build in progress
Explorer is offline  
Old 07/21/10, 05:58 AM   #15
NYLES
Bronco Guru
 
NYLES's Avatar
 
YOU WANNA WHAT?

FREE RUN, MS
Joined: Aug 04
Posts: 9,796

My Gallery
Garage
Quote:
Originally Posted by Explorer View Post
I'd still check some simple stuff before sending to the tranny shop. Make sure you're getting full throttle travel and yes, set the timing.
What he said

'69, 306 EFI'ed, ZF, DANA 44, 4 WHEEL DISC'S, ASTROBOOST, 3.5"SUSPENSION LIFT, 2"BODY LIFT, GLASS BODY, 37" ON MRW, 5.13's GRZZ/GRIZZ , MOSER, STONE CRUSHER, POWER STEERING, BAILIE BILT, DURABACK, RJM
NYLES is offline  
 

  ClassicBroncos.com Forums > Archives > Bronco Chat - Archives

Thread Tools

Forum Jump


All times are GMT -6. The time now is 01:23 PM.


Bulletin Board Software by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.


This site created, owned and maintained by Jon Hanna
Copyright 1996-2018 All rights reserved. Privacy Statement
ClassicBroncos.com is not affiliated with Ford Motor Company

Page generated in 0.94427 seconds with 63 queries