 
Main Menu
|
|
Nevada Classics
|
|
Advertise at CC
|
|
November 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 |
|
|
CC Advertisers
|
|
04-02-2013, 07:32 AM
|
 |
CC Member
|
|
|
Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
|
|
Not Ranked
cyl 7-8 crossfire
I have the dreaded 7-8 crossfire problem which is easily rectified by separating the two wires, however it looks like crap! I have the wires run over the top center of the vc's as per original, and the wires are all parallel. All the pics of 427 engines I've seen have the wires run this way, so how are they getting by with this, unless that's just for pics or show, and the change wire placement for actual running ? I believe twisting the two wires a turn or two does the trick, but that doesn't look very good either.
Any suggestions?
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
|
-
Advertising
04-02-2013, 07:40 AM
|
 |
Stolen Avitar
|
|
|
Join Date: Oct 2004
Location: Brunswick,
GA
Cobra Make, Engine: BDR 1311 428PI
Posts: 3,044
|
|
Not Ranked
What type wires and ignition are you using? A good set of wires shouldn't allow that to happen.
|
04-02-2013, 08:00 AM
|
|
CC Member
|
|
|
Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
|
|
Not Ranked
LH: MSD 6al, Taylor 8.5 mm wires.
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
|
04-02-2013, 08:24 AM
|
|
Stolen Avitar
|
|
|
Join Date: Oct 2004
Location: Brunswick,
GA
Cobra Make, Engine: BDR 1311 428PI
Posts: 3,044
|
|
Not Ranked
That seems pretty standard. I'm running my wires like yours but they're MSD so I don't know how much that changes things. Can you see where the cross fire is happening? i.e. a spark between wires? If so I'd think there was a problem with the wires.
|
04-02-2013, 09:11 AM
|
|
CC Member
|
|
|
Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
|
|
Not Ranked
LH: I could hear a "Popping" in #8 carb stack at idle, almost metallic, like a valve sticking, and rough running and backfire through intake when driving. That all went away by twisting 7&8 wires or moving #8 away as far as possible.
It is an fe anomally due to firing order,as #'s 7&8 are adjacent and 8 fires right after 7.
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
|
04-02-2013, 09:18 AM
|
 |
CC Member
|
|
|
Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
|
|
Not Ranked
That goes back to 1958-----The order of the wires over the left valve cover are 7,5,6,8-Patrict has pictures---------
It was common place in late 50s early 60s to get a tune up and car would run like crap because 3 wires would have been put back on the wrong plugs----
|
04-02-2013, 10:48 AM
|
 |
Half-Ass Member
|
|
|
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,000
|
|
Not Ranked
Quote:
Originally Posted by Jerry Clayton
That goes back to 1958-----The order of the wires over the left valve cover are 7,5,6,8-Patrict has pictures---------
|
I only route them this way to make Jerry happy. Any decent set of today's wires shouldn't have the 7/8 problem anymore. Upgrade your wires first, then put them in this order.
Last edited by patrickt; 11-03-2016 at 10:47 AM..
|
04-02-2013, 04:19 PM
|
|
CC Member
|
|
|
Join Date: Feb 2001
Location: BRADENTON,
FL
Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
Posts: 1,396
|
|
Not Ranked
Ran like crap today, had to cut the drive short and come home. Ran very well yesterday!
The wires are new ,8mil Taylor "Sprio Pro" made for MSD type ignition. Run high voltage wires close and parallel there's going to be some induction, many electrical devices depend on it. Will try Patricks/Jerry's fix tomorrow if it doesn't rain !,
__________________
"When Injustice becomes Law,
Rebellion becomes Duty." T. Jefferson
|
04-02-2013, 06:56 PM
|
|
CC Member
|
|
|
Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
|
|
Not Ranked
It isn't Patricks/Jerry's fix-----its the way Ford built them
|
04-02-2013, 07:44 PM
|
|
Half-Ass Member
|
|
|
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,000
|
|
Not Ranked
Quote:
Originally Posted by Jerry Clayton
It isn't Patricks/Jerry's fix----
|
Well, you have to admit, it sounds better than Jerry/Patrick's fix.... |
04-02-2013, 08:11 PM
|
 |
CC Member
|
|
|
Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
|
|
Not Ranked
5,7,6,8 works for me too. I'm in the dark ages, still running solid core wires, without any negative effects.
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 01:55 AM.
|
Linear Mode
