Your donations help keep this valuable resource free and growing. Thank you.
|
My Matador |
Post Reply | Page 12> |
Author | |
matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
Post Options
Thanks(0)
Posted: Aug/19/2017 at 4:37pm |
so here is the deal 72 Matador 401 small R/V cam and 456 gears for some reason i can only get a 8.9 in the 1/8th mile any idea's to go quicker short of building the 401 no interior spooled have 325-50-15 M&H drag radials but it is quicker with street tires those are 275-60-15
|
|
72 matador 401 the beast
79 concord 2 door 72 matador 304 grasshopper 68 Rogue 406 93 Cherokee 4.0 5 speed |
|
Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5118 |
Post Options
Thanks(0)
|
RV cam is probably better for towing & making torque not horsepower. That combined with 4.56 gears means it's gonna run out of wind by the time you're at 4000 RPM.
What's your timeslip say? 60 foot? 1/8th? ET & MPH? -Steve- |
|
matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
Post Options
Thanks(0)
|
60 foot 2.01 1/8th 8.90 mph 78.42mph
|
|
72 matador 401 the beast
79 concord 2 door 72 matador 304 grasshopper 68 Rogue 406 93 Cherokee 4.0 5 speed |
|
matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
Post Options
Thanks(0)
|
been shifting at 5000 it is a jeep 401 with 8.25 to 1 compression also
|
|
72 matador 401 the beast
79 concord 2 door 72 matador 304 grasshopper 68 Rogue 406 93 Cherokee 4.0 5 speed |
|
Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5118 |
Post Options
Thanks(0)
|
60 foot isn't too bad. Compression is quite low. It's not making much power. Doubt you can do much without making changes to the engine.
-Steve- |
|
scott
AMC Addicted Joined: Jul/10/2007 Location: Wildwood Pa. Status: Offline Points: 3498 |
Post Options
Thanks(0)
|
I'm curious as to the rest of the engine. What intake, carb, ignition, exhaust?? What transmission?
|
|
matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
Post Options
Thanks(0)
|
air gap intake 750 eldo carb 727 trans stock converter headers 2.5 into 2 chamber mufflers crane conversion and a accel super coil
|
|
72 matador 401 the beast
79 concord 2 door 72 matador 304 grasshopper 68 Rogue 406 93 Cherokee 4.0 5 speed |
|
steinercj5
AMC Apprentice Joined: Jul/29/2016 Location: Kenosha Wi Status: Offline Points: 144 |
Post Options
Thanks(0)
|
I have limited experience but I really think your stock converter is holding you back. I realize your combo is not making power higher in the rpm range but I think a quality converter with a higher stall would put the engine in its power band and would decrease your 60' times. Just a thought.
|
|
blaine H
AMC Apprentice Joined: Feb/24/2012 Location: Bethlehem, Pa Status: Offline Points: 72 |
Post Options
Thanks(0)
|
I think with your package you are right where you need to be. Around 14 flat @ 96 mph. To get any faster (big time) you would need to change a lot of different things. Cam, carb, converter, recurve dist, bring in total timing around 36 to 38*. Maybe pump up the drag radials to 25 to 27 pounds. Just a few ideas that worked for me.
blaine H. |
|
NHRA Div 1 Bracket Finals - 2000, 01, 02 and 07.
I may be slow but I go first! |
|
matty 401
AMC Addicted Joined: Jul/06/2007 Location: Iowa Status: Offline Points: 1730 |
Post Options
Thanks(0)
|
no drag radial just cooper 275-60-15 tires
|
|
72 matador 401 the beast
79 concord 2 door 72 matador 304 grasshopper 68 Rogue 406 93 Cherokee 4.0 5 speed |
|
Post Reply | Page 12> |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |