New owner-buying on3 kit - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 9 Old 10-21-2012, 07:23 PM Thread Starter
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New owner-buying on3 kit

Figured I would introduce myself and share some history on the car
I'm a part time car dealer and bought this car from a wholesaler. I originally wanted to sell it for profit but I had some stress in my life and it was the worst of my problems. I ended up driving it as a daily for 2 months. Anyways. The car is all original 1988 5.0 lx aod. Sometime in 2005 the trans was rebuilt. The original owners son made his father sell it because he was too old to drive. The car runs great and now that's I've decided to keep it, it needs alittle more go. I originally saw the cxracing kits on eBay and eventually found the on3 kit. My questions are
1. Is this the fuel pump I need?

Holley
Part No. 12-915
Avenger; Forced Induction Series; Performance In-Tank Electric Pump; 255 LPH
Electric Fuel Pump; In-Tank Electric Fuel Pump; 255 LPH; Forced Induction
Or this?
http://www.highflowfuel.com/i-521032...1986-1997.html

2. I have ford green top injectors from my pro charger ls1 build. Will these work?

3. Do I have to convert the car to maf?

4. Does it have to be dyno tuned or is an off the shelf tune available ?

5. Is the turbo blanket required?

Thank you


Last edited by Tudds; 10-21-2012 at 07:52 PM.
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post #2 of 9 Old 10-21-2012, 07:27 PM Thread Starter
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The tank leaks when it's full and drips down the back. Anything else i need?


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post #3 of 9 Old 10-22-2012, 01:11 PM
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I'll try to help. I have an On3 kit that will be going on my coupe soon.

1. Your green top 42lb injectors will work.
2. The car will need to be converted to MAF unless you plan to run a standalone ECU.
3. There are companies that do mail order tunes, but I would honestly take it to a reputable tuner in your area for a tune.

Instead of buying a new tank, figure out where yours is leaking from. It sounds like it could be from the fuel neck rubber grommet. As far as the fuel pump, it sounds like a standard Walbro 255lph will work for what you're wanting. They're only about $100. I would go ahead and pick up an adjustable fuel pressure regulator as well, that will help get your fuel pressure set correctly when the car gets tuned.

The turbo blanket isn't required, but it would be a very smart thing to buy. It will help keep the underhood temps down, prevent stuff under the hood from being melted, etc. It would be a good idea to get some header wrap and wrap the down pipe and crossover, do not wrap the headers.. I've read that this can promote rust.

Once you convert the car to MAF, pick up a VMP HPX 05+ slot style MAF, flange, and pigtail. Hopefully this helps a little.

Quote:
Originally Posted by Tudds View Post
Figured I would introduce myself and share some history on the car
I'm a part time car dealer and bought this car from a wholesaler. I originally wanted to sell it for profit but I had some stress in my life and it was the worst of my problems. I ended up driving it as a daily for 2 months. Anyways. The car is all original 1988 5.0 lx aod. Sometime in 2005 the trans was rebuilt. The original owners son made his father sell it because he was too old to drive. The car runs great and now that's I've decided to keep it, it needs alittle more go. I originally saw the cxracing kits on eBay and eventually found the on3 kit. My questions are
1. Is this the fuel pump I need?

Holley
Part No. 12-915
Avenger; Forced Induction Series; Performance In-Tank Electric Pump; 255 LPH
Electric Fuel Pump; In-Tank Electric Fuel Pump; 255 LPH; Forced Induction
Or this?
HFP 255LPH Fuel Pump Ford Mustang GT 5.0/4.6 1986 - 1997

2. I have ford green top injectors from my pro charger ls1 build. Will these work?

3. Do I have to convert the car to maf?

4. Does it have to be dyno tuned or is an off the shelf tune available ?

5. Is the turbo blanket required?

Thank you
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post #4 of 9 Old 10-22-2012, 01:25 PM Thread Starter
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Thank you for your help. I have no idea what the maf you mentioned is. From what I've read the maf is calibrated to your injectors?
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post #5 of 9 Old 10-22-2012, 01:29 PM
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i would get the hlley pump or another that is high pressure, they all built for forced induction

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post #6 of 9 Old 10-22-2012, 03:53 PM Thread Starter
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Is that hot wire kit necessary ?
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post #7 of 9 Old 10-22-2012, 04:00 PM
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not sure what that is besides maybe a pnp wiring harness

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post #8 of 9 Old 10-22-2012, 10:32 PM
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The 42's will end up being a bottle neck before a Walbro GSS340 (255lph high pressure) - that's why I suggested that one to save him a few bucks. The MAF that I suggested doesn't need to be calibrated for the injectors, the tuner can calibrate the MAF for the injectors. That's one of the reasons a lot of tuners love these MAF's.

The pig tail would be needed for a plug n play deal, as the connectors are different on 05+ slot style MAFs
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post #9 of 9 Old 10-23-2012, 07:46 AM Thread Starter
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I'll go drive by a local place that tunes mustangs and ask what maf they prefer
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