Installing MSD Boost A Pump
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From: West Palm Beach FL
Installing MSD Boost A Pump
Hi Guys,
I had my MSD temporarily installed up front taped into the fuel pump fuse for tuning purposes, but am now moving it to the back and hooking it up near the pump as it is supposed to be. I have my vaccum line run back and positive and negaitve are hooked up to the batter, I am just left with the two red wires that connect to the fuel pump harness. I have located the harness inside the driver's side wheel well with 4 wires in and out of the connection. My question is, am I splicing into the gray wire just like I did up front or is a different color back here? Just want to tripple check before I go hacking
Thanks,
Evan
I had my MSD temporarily installed up front taped into the fuel pump fuse for tuning purposes, but am now moving it to the back and hooking it up near the pump as it is supposed to be. I have my vaccum line run back and positive and negaitve are hooked up to the batter, I am just left with the two red wires that connect to the fuel pump harness. I have located the harness inside the driver's side wheel well with 4 wires in and out of the connection. My question is, am I splicing into the gray wire just like I did up front or is a different color back here? Just want to tripple check before I go hacking
Thanks,
Evan
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From: Think BEFORE hitting "Submit Reply"
Hi Guys,
I had my MSD temporarily installed up front taped into the fuel pump fuse for tuning purposes, but am now moving it to the back and hooking it up near the pump as it is supposed to be. I have my vaccum line run back and positive and negaitve are hooked up to the batter, I am just left with the two red wires that connect to the fuel pump harness. I have located the harness inside the driver's side wheel well with 4 wires in and out of the connection. My question is, am I splicing into the gray wire just like I did up front or is a different color back here? Just want to tripple check before I go hacking
Thanks,
Evan
I had my MSD temporarily installed up front taped into the fuel pump fuse for tuning purposes, but am now moving it to the back and hooking it up near the pump as it is supposed to be. I have my vaccum line run back and positive and negaitve are hooked up to the batter, I am just left with the two red wires that connect to the fuel pump harness. I have located the harness inside the driver's side wheel well with 4 wires in and out of the connection. My question is, am I splicing into the gray wire just like I did up front or is a different color back here? Just want to tripple check before I go hacking
Thanks,
Evan
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Joined: Aug 2006
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From: West Palm Beach FL
Ok and the splice should be on the plug side of the connection (not the receptical side) and which wire should be first (or does it matter)? The red long wire directly off the MSD or the Red Relay wire?
Evan
Evan
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From: Think BEFORE hitting "Submit Reply"
Take a look at these instructions to get a good look.
The cut gray wire from the fuse box triggers the relay (#85), and the red 10ga wire splices into the short cut gray wire at the plug, towards the pump.
Send all black leads to a good chassis ground.
I would also use a 10ga wire from the battery to the relay(#87).
Last edited by vrybad; Aug 26, 2009 at 04:41 PM.
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From: West Palm Beach FL
http://www.msdignition.com/uploadedF...ons.pdf?n=9957
Take a look at these instructions to get a good look.
The cut gray wire from the fuse box triggers the relay (#85), and the red 10ga wire splices into the short cut gray wire at the plug, towards the pump.
Send all black leads to a good chassis ground.
I would also use a 10ga wire from the battery to the relay(#87).
Take a look at these instructions to get a good look.
The cut gray wire from the fuse box triggers the relay (#85), and the red 10ga wire splices into the short cut gray wire at the plug, towards the pump.
Send all black leads to a good chassis ground.
I would also use a 10ga wire from the battery to the relay(#87).
I have 2 red wires off the MSD. One goes directly off the MSD (The one the instructions say to run to the pump) and one that comes off the MSD Relay (Smaller guage) that the instructions say to run to the Pump relay. I am trying to figure out which one goes where... Sorry to sound stupid, but can you break it down to novice terms for me please??
I have everything else done (Power, ground, and vaccum).Evan
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From: Think BEFORE hitting "Submit Reply"
I have those instructions, but I admit I am a total wiring novice, I can install a supercharger no problem, its the wiring that gets me :o
I have 2 red wires off the MSD. One goes directly off the MSD (The one the instructions say to run to the pump) and one that comes off the MSD Relay (Smaller guage) that the instructions say to run to the Pump relay. I am trying to figure out which one goes where... Sorry to sound stupid, but can you break it down to novice terms for me please?? I have everything else done (Power, ground, and vaccum).
Evan
I have 2 red wires off the MSD. One goes directly off the MSD (The one the instructions say to run to the pump) and one that comes off the MSD Relay (Smaller guage) that the instructions say to run to the Pump relay. I am trying to figure out which one goes where... Sorry to sound stupid, but can you break it down to novice terms for me please??
I have everything else done (Power, ground, and vaccum).Evan
Is there an orange fused wire like in the instructions?
It could be red on your BAP.
Last edited by vrybad; Aug 26, 2009 at 05:06 PM.
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Joined: Aug 2006
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From: West Palm Beach FL
This Harness:
And these wires:
Right now I have:
-Black Wire Out of MSD To Ground
-Yellow Wire With Fuse Into Relay
-Red Wire Off Relay to Battery
-Black Wire Off Relay to Ground
Which leaves me with 1 red wire coming out of MSD, and 1 red wire off #85 on relay (as pictured above). Just trying to figure out where those 2 go, I figure they both go to the gray wire in the same spot,just not sure and also not sure which goes where (can't tell which part of the harness is heading to the pump and which is heading to the fuse).
Evan
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From: Think BEFORE hitting "Submit Reply"
OK, I think I understand what you have.
You splice the smaller red wire to the gray wire from the front of the car (the one you cut near the plug near the back of the car)-that is the trigger wire that triggers the relay
And you splice the big red wire to the gray plug wire towards the pump.
Remember, one wire triggers the relay and one wire goes to the pump.
Can you take a pic of all the components as they sit, just to make sure it is set up correctly?
You splice the smaller red wire to the gray wire from the front of the car (the one you cut near the plug near the back of the car)-that is the trigger wire that triggers the relay
And you splice the big red wire to the gray plug wire towards the pump.
Remember, one wire triggers the relay and one wire goes to the pump.
Can you take a pic of all the components as they sit, just to make sure it is set up correctly?
Basically here is what I have...
Right now I have:
-Black Wire Out of MSD To Ground
-Yellow Wire With Fuse Into Relay
-Red Wire Off Relay to Battery
-Black Wire Off Relay to Ground
Which leaves me with 1 red wire coming out of MSD, and 1 red wire off #85 on relay (as pictured above). Just trying to figure out where those 2 go, I figure they both go to the gray wire in the same spot,just not sure and also not sure which goes where (can't tell which part of the harness is heading to the pump and which is heading to the fuse).
Evan
Right now I have:
-Black Wire Out of MSD To Ground
-Yellow Wire With Fuse Into Relay
-Red Wire Off Relay to Battery
-Black Wire Off Relay to Ground
Which leaves me with 1 red wire coming out of MSD, and 1 red wire off #85 on relay (as pictured above). Just trying to figure out where those 2 go, I figure they both go to the gray wire in the same spot,just not sure and also not sure which goes where (can't tell which part of the harness is heading to the pump and which is heading to the fuse).
Evan
Last edited by vrybad; Aug 26, 2009 at 05:38 PM.
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Thread Starter
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Joined: Aug 2006
Posts: 89
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From: West Palm Beach FL
OK, I think I understand what you have.
You splice the smaller red wire to the gray wire from the front of the car (the one you cut near the plug near the back of the car)-that is the trigger wire that triggers the relay
And you splice the big red wire to the gray plug wire towards the pump.
Remember, one wire triggers the relay and one wire goes to the pump.
Can you take a pic of all the components as they sit, just to make sure it is set up correctly?
You splice the smaller red wire to the gray wire from the front of the car (the one you cut near the plug near the back of the car)-that is the trigger wire that triggers the relay
And you splice the big red wire to the gray plug wire towards the pump.
Remember, one wire triggers the relay and one wire goes to the pump.
Can you take a pic of all the components as they sit, just to make sure it is set up correctly?
Thread Starter
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Joined: Aug 2006
Posts: 89
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From: West Palm Beach FL
Ok so we ended up wiring how we originally thought and the car starts and runs fine... Don't have much of a way to test if its pumping more voltage, but its passing it which to me means it works... Installing an AFR and boost gauge tomorrow to be sure its working...
Look right?
Evan
Look right?
Evan
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From: Think BEFORE hitting "Submit Reply"
Evan,
One quick note-I'd throw a volt meter on the wire to the pump, and test the voltage from the MSD.
A small turn of the adjustment screw can have a big effect on the voltage, and you can also adjust it by putting a bicycle pump on the MSD and giving it some pressure as you read the voltage-with ignition to "ON" but the engine not running.
This will help you insure that you don't run too much additional voltage under boost and burn out the stock pump.
One quick note-I'd throw a volt meter on the wire to the pump, and test the voltage from the MSD.
A small turn of the adjustment screw can have a big effect on the voltage, and you can also adjust it by putting a bicycle pump on the MSD and giving it some pressure as you read the voltage-with ignition to "ON" but the engine not running.
This will help you insure that you don't run too much additional voltage under boost and burn out the stock pump.
Thread Starter
Advanced
Joined: Aug 2006
Posts: 89
Likes: 0
From: West Palm Beach FL
Evan,
One quick note-I'd throw a volt meter on the wire to the pump, and test the voltage from the MSD.
A small turn of the adjustment screw can have a big effect on the voltage, and you can also adjust it by putting a bicycle pump on the MSD and giving it some pressure as you read the voltage-with ignition to "ON" but the engine not running.
This will help you insure that you don't run too much additional voltage under boost and burn out the stock pump.
One quick note-I'd throw a volt meter on the wire to the pump, and test the voltage from the MSD.
A small turn of the adjustment screw can have a big effect on the voltage, and you can also adjust it by putting a bicycle pump on the MSD and giving it some pressure as you read the voltage-with ignition to "ON" but the engine not running.
This will help you insure that you don't run too much additional voltage under boost and burn out the stock pump.
Thank you again for all your help and the phone call! This is what happens when I overthink something simple and second and third and fourth guess myself
Evan
Racer
Joined: May 2007
Posts: 492
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As an alternate to splicing get a Racetronix harness the thing works slick just plug and play,
SEE:
http://racetronix.info/showthread.php?p=86#post86
SEE:
http://racetronix.info/showthread.php?p=86#post86
Last edited by Street gear; Aug 26, 2009 at 08:48 PM.
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From: Think BEFORE hitting "Submit Reply"
Will do thanks! It was already adjusted by my tuner while he was on the dyno (and I have not touched his setting), but I will check to make sure!
Thank you again for all your help and the phone call! This is what happens when I overthink something simple and second and third and fourth guess myself
Evan
Thank you again for all your help and the phone call! This is what happens when I overthink something simple and second and third and fourth guess myself
Evan
Best of luck with the car, it sounds like a beast!!
Le Mans Master
Joined: Aug 2002
Posts: 8,472
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From: Houston TX
St. Jude Donor '11
Sounds like you're done but here is another, very clean way to install it.
http://forums.corvetteforum.com/c6-f...ap-wiring.html
http://forums.corvetteforum.com/c6-f...ap-wiring.html
Pro
Joined: Apr 2007
Posts: 527
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From: Fort Walton Beach FL
Just make sure you have a good fuse hooked up to the booster. I guess I" had the original fuse, and went to the track and the fuse blew, and began to arc. Well... the arcing then proceeded to catch the fuse casing and other things around it on fire. Lucklily I caught it before it did any REAL damage. I simply repliced a new fuse housing in the line. Its just a good reminder on the amount of power that the booster is putting out.
Pro
Joined: Apr 2007
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From: Fort Walton Beach FL
