Club Cobra Gas - N Exhaust  

Go Back   Club Cobra > Engine Building, Tuning, and Induction > Small Block Talk

MMG Superformance
Nevada Classics
Main Menu
Module Jump:
Nevada Classics
Nevada Classics
Keith Craft Racing
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
Keith Craft Racing
MMG Superformance
December 2024
S M T W T F S
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31        

Kirkham Motorsports

Like Tree5Likes
  • 1 Post By Dwight
  • 1 Post By Dwight
  • 1 Post By Dwight
  • 1 Post By Three Peaks
  • 1 Post By Three Peaks

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 06-10-2018, 06:39 PM
Apex_speed's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2018
Location: Denver, CO
Cobra Make, Engine: Superformance Mk3 with Roush 427R
Posts: 77
Not Ranked     
Default Starter Recommendations?

I just got done with a Holley Sniper TBI installation and am having cranking issues that were not there before. The only real current draw change is a Holley electric fuel pump that appears to be a power sucking pig. So now if my radiator fans are running, I can't crank the engine over enough to start it. A booster pack placed at the battery fixes the issue immediately so I don't believe it to be the solenoid or ignition switch. I have an Optima Red Top 1000CCA battery that I was sure was the issue but it load tested fine. I have also checked the suspect SPF main chassis ground and it is also fine. I measure voltage as low as 9V while cranking throughout the car which seems low (solenoid, main 12V distribution points, etc).

I'm thinking whatever starter Roush out on the 427R c2006 is maybe not the best choice and may have aged badly but I' m not expert on SBF starters.

Any thoughts on a high torque starter that might have a lower current draw while cranking the engine?

Update:

I put in a Powermaster 9603...great starter. But the problem was the Optima battery that had load tested fine. What a POS. I popped in an Interstate MTP-34 and I could now drive it down the block using only the starter motor!

Last edited by Apex_speed; 06-19-2018 at 08:51 AM..
Reply With Quote
  #2 (permalink)  
Old 06-10-2018, 08:51 PM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile

Summit sells one.
What size is your cable from the battery to the starter?
I recommend #2 awg welding lead (fine strand wire) that will carry a lot of amps.
Apex_speed likes this.
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #3 (permalink)  
Old 06-10-2018, 08:55 PM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile

check these out

https://www.summitracing.com/search/...rder=Ascending
Apex_speed likes this.
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #4 (permalink)  
Old 06-10-2018, 08:59 PM
Dwight's Avatar
Senior Club Cobra Member
Visit my Photo Gallery

 
Join Date: May 2001
Location: Florence, AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
Not Ranked     
Smile mini starter

here is another source
I have bought several and they are good starters. Don't let the price scare you.

https://www.dbelectrical.com/starter...ini-hi-torque/
Apex_speed likes this.
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Reply With Quote
  #5 (permalink)  
Old 06-10-2018, 09:01 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2005
Location: Hillsboro, OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
Posts: 1,623
Not Ranked     
Default

First things first.
Make sure all your connections are extremely clean and no corrosion, then retighten very well. Also, make sure you have a good ground to the engine and the starter. If you can, run a good ground wire from the battery to the starter.
The biggest cause of starter problems is corrosion or other interference with a good connection at the starter and/or solenoid, and an insufficient ground. Once you have that absolutely determined to be good, then look at starter problems since it looks like your battery is good.

Bob
Apex_speed likes this.
Reply With Quote
  #6 (permalink)  
Old 06-10-2018, 09:34 PM
Apex_speed's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2018
Location: Denver, CO
Cobra Make, Engine: Superformance Mk3 with Roush 427R
Posts: 77
Not Ranked     
Default

Thanks for the tips. Wire gauge should be fine, solenoid is in good condition.

Giving this more thought...As it’s happening when hot, it could also be heat soak effecting the starter.

Maybe the ticket is a gear reduction starter as what I’m after is solid cranking with the least amount of current draw. The 427R is only 10.5-1 with a moderate cam so it shouldn’t be too demanding.
Reply With Quote
  #7 (permalink)  
Old 06-10-2018, 10:02 PM
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2005
Location: Hillsboro, OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
Posts: 1,623
Not Ranked     
Default

I installed a mini starter on my 393 with 10.5 compression and haven't had any problems with it.

Bob
Apex_speed likes this.
Reply With Quote
  #8 (permalink)  
Old 06-19-2018, 08:50 AM
Apex_speed's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2018
Location: Denver, CO
Cobra Make, Engine: Superformance Mk3 with Roush 427R
Posts: 77
Not Ranked     
Default

I put in a Powermaster 9603...great starter. The problem was the Optima battery that had load tested fine. What a POS. I popped in an Interstate MTP-34 and I could now drive it down the block using only the starter motor!
Reply With Quote
  #9 (permalink)  
Old 06-19-2018, 08:55 AM
Apex_speed's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2018
Location: Denver, CO
Cobra Make, Engine: Superformance Mk3 with Roush 427R
Posts: 77
Not Ranked     
Default

.....
Reply With Quote
  #10 (permalink)  
Old 06-20-2018, 11:37 AM
cobrarkc's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Wayne, NJ
Cobra Make, Engine: Contemporary 482 all aluminum Tunnelport Self built and owned since 1980 frame#0000017 and owner of frame CCX 33961 looking for an FIA body to go with it
Posts: 432
Not Ranked     
Default

You might need to run a ground wire from the engine to the battery and make sure it is the same gauge as the positive lead. The newer electronic components especially fuel injection units need this to operate correctly, a ground to the frame is not sufficient. What will happen is they will look for ground through all the other wires, this could potentially burn out other components in the vehicle. If this is not the problem try an MSD Dyna Force starter.
__________________
Cobrarich
Reply With Quote
  #11 (permalink)  
Old 06-20-2018, 04:26 PM
Apex_speed's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: May 2018
Location: Denver, CO
Cobra Make, Engine: Superformance Mk3 with Roush 427R
Posts: 77
Not Ranked     
Default

Quote:
Originally Posted by cobrarkc View Post
You might need to run a ground wire from the engine to the battery and make sure it is the same gauge as the positive lead. The newer electronic components especially fuel injection units need this to operate correctly, a ground to the frame is not sufficient. What will happen is they will look for ground through all the other wires, this could potentially burn out other components in the vehicle. If this is not the problem try an MSD Dyna Force starter.
This had crossed my mind but as I updated above, it was the battery. It was starting great all afternoon yesterday as we set the timing.
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 06:03 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy
Links monetized by VigLink