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01-20-2004, 03:27 AM
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CC Member
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Join Date: Oct 2003
Location: Tibro,
VaG
Cobra Make, Engine: AK 427 + Ford 302 EFI std, so far
Posts: 11
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Not Ranked
5.0 Efi -87
Need advice!
I want to gain power to my 1987 5.0 EFI, but have heard that the -87 fuelinjection system (speed-density) is not sutable for this. My goal is to reach appr. 300-350 hp. My original plan was pistons, rods, canshaft & heads.
So: Is it right that -87 (speed-density) is not suitable for tuning and what's your proposal instead?
Best Regards, Roy in Sweden
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01-20-2004, 06:07 AM
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CC Member
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Join Date: Mar 2000
Location: Dayton,
OH
Cobra Make, Engine: RCR SLC, Graziano 6-spd, LS3
Posts: 914
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Not Ranked
It is true that the Speed-Density system does not respond kindly to engine modifications.
Convert your Speed-Density system to Mass-Air. Ford Motorsport makes a kit to convert: FMS-M12071F302.
Pete |
01-20-2004, 08:43 AM
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CC Member
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Join Date: Oct 2003
Location: Tibro,
VaG
Cobra Make, Engine: AK 427 + Ford 302 EFI std, so far
Posts: 11
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Not Ranked
Thanks!
That what you call, learningcost....
OK, what more do I need, engine block will bee bored 0.030.
AND can I use stock harness??
Best Regards, Roy
Last edited by magna_swede; 01-20-2004 at 01:08 PM..
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01-21-2004, 09:26 PM
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CC Member
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Join Date: Nov 1999
Location: Las Vegas,
NV
Cobra Make, Engine: Classic Roadster; 351W
Posts: 743
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Not Ranked
You will need a new harness. I believe that part number includes the harness. If not, there is a kit that includes the harness. Get a good set of AFR 165 heads, and a decent cam. Couple that with a good Cobra/tfs/Edelbrock intake and good exhaust will get you the 300 + mark. lots of 302 (5.0) info on the mustang website www.corral.net |
01-22-2004, 07:43 AM
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CC Member
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Join Date: Oct 2003
Location: Tibro,
VaG
Cobra Make, Engine: AK 427 + Ford 302 EFI std, so far
Posts: 11
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Not Ranked
One says reuse another says don't.. Whats right?
thanks for your answer's !
Keep nursing the snakes!
Roy
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01-22-2004, 08:23 AM
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CC Member
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Join Date: Mar 2000
Location: Dayton,
OH
Cobra Make, Engine: RCR SLC, Graziano 6-spd, LS3
Posts: 914
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Not Ranked
If you get the kit from Ford Racing, it includes the jumper wires to modify your stock harness. From the Ford Racing Website: Mass Air Conversion Kits
MUSTANG KIT INCLUDES:
• EEC-IV mass air processor module assembly
• EEC-IV jumper wire harness
• Mass airflow sensor, hoses, clamps and brackets
• Easy to follow instructions
If you scrounge the individual parts yourself (MAF and computer), then you will also need a harness from a mass air car.
Pete
Last edited by PSB; 01-22-2004 at 08:42 AM..
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01-22-2004, 08:38 AM
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CC Member
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Join Date: Oct 2003
Location: Tibro,
VaG
Cobra Make, Engine: AK 427 + Ford 302 EFI std, so far
Posts: 11
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Not Ranked
Thanks!
Now there's no questionmarks left about that!!
Best Regards
Roy in cold sweden, longing for the summer!
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01-22-2004, 07:20 PM
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CC Member
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Join Date: Nov 1999
Location: Las Vegas,
NV
Cobra Make, Engine: Classic Roadster; 351W
Posts: 743
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Not Ranked
My bad.. Did not know you could splice into the existing harness. Sorry
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01-23-2004, 10:30 AM
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CC Member
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Join Date: Oct 2003
Location: Tibro,
VaG
Cobra Make, Engine: AK 427 + Ford 302 EFI std, so far
Posts: 11
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Not Ranked
Appreciates any aswers, anyhow!
Have a nice day!
BR Roy
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