holley swap guidance

[graham1524]

So I've done the easy part of the swap and got the old harness out and the new harness in. Now I need a little assistance getting everything that will be reused from the old harness.



This is what I have and I've separated the:
Oil pressure
Wiper motor
Coil plug
Two transmission plugs
Coolant temp
AC plug

I know I'm missing a few and am trying to figure out 100% what I need to do before I do it.

I've been reading all the other holley threads and DaveP said that nothing is removed from the c100 and that's what I'm currently working with.

 

[0966Sy]

Dig up my thread "BS3 in stock Typhoon" I have some info in there regarding the modification of that harness. Otherwise I'll help you out when I get to mine, hopefully today. Do you have a digital volt meter? Your going to need it. Also how did you trigger the fuel pump?

 

[graham1524]

Re: holley swap guidance

Dig up my thread "BS3 in stock Typhoon" I have some info in there regarding the modification of that harness. Otherwise I'll help you out when I get to mine, hopefully today. Do you have a digital volt meter? Your going to need it. Also how did you trigger the fuel pump?

Thanks that's the kind of help I'm looking for. Reading a thread here another guy running the holley setup a relay from the holley to the relay of his fuel pump circuit. I was thinking of doing mine the same way.

 

[0966Sy]

Thanks that's the kind of help I'm looking for. Reading a thread here another guy running the holley setup a relay from the holley to the relay of his fuel pump circuit. I was thinking of doing mine the same way.

The BS3 does not include it's own relay for the fuel pump. If the Holley does, I would not suggest using a relay to trigger another relay. I believe the BS3 is ground controlled for the fuel pump activation. I reused a racetronix harness kit and really happy with the way it worked out. I'm separating my factory harness at the moment, soon I'll update my thread with some more specific details to the modification and reused circuits.

 

[graham1524]

Re: holley swap guidance

The BS3 does not include it's own relay for the fuel pump. If the Holley does, I would not suggest using a relay to trigger another relay. I believe the BS3 is ground controlled for the fuel pump activation. I reused a racetronix harness kit and really happy with the way it worked out. I'm separating my factory harness at the moment, soon I'll update my thread with some more specific details to the modification and reused circuits.

I was able to pick DaveP's brain for a bit and that really helped. I have a racetronix harness as well and have any me up with a way to wire it all. I'm at the point where my harnesses are separated and all I really gave to do is get it back in the truck.