5.0 Cobra intake swap made my car slower???
- Thread starter 91foxbodygt
- Start date
DMAN302
My mom says thanks for the pearl necklace.
Killer50stang
New Member
- May 11, 2004
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91foxbodygt said:
Have to agree on timing here. If you're timing is off then you will run hotter than normal. Changing an intake shouldn't make any difference. Did you mess with the timing at all? Set it 8-10, should work for you. Make sure that injector you used for replacement is a 19lb. (orange colored).
Thenemesis
Member
JOHNS GT said:
why would they stick a 19lb injector in a granny car? lol i think thats your problem.. one cylinders coughin lol
Killer50stang
New Member
- May 11, 2004
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JOHNS GT said:
Lol!!! You should have done a little research on that first. Is the crown vic injector the same color as your others?
- Apr 11, 2005
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well the injector i put was also orange, almost all the digits were identical except for the last one.
i have heard trucks, family cars, and even 6 cyl stangs have 19lb---??? dont know for sure
hopefully it isnt the injector but just something as simple as the timing
just in case it is, how much would you sell the 19pounder for John???
I checked and yes the throttle boddle is opening all the way when the pedal is pushed on.
i havent gotten around to checking for leaks though
im still using EGR
another thing which is weird is that when i launch it the handbrake sign turns on around 3000rpm....???then when i let off it goes away
---15.8 baby-- :damnit:
i have heard trucks, family cars, and even 6 cyl stangs have 19lb---??? dont know for sure
hopefully it isnt the injector but just something as simple as the timing
just in case it is, how much would you sell the 19pounder for John???
I checked and yes the throttle boddle is opening all the way when the pedal is pushed on.
i havent gotten around to checking for leaks though
im still using EGR
another thing which is weird is that when i launch it the handbrake sign turns on around 3000rpm....???then when i let off it goes away
---15.8 baby-- :damnit:
BlackGT89
Member
darthcual
Member
You sed the manny came with a one inch spacer. Did you put a gasket between both sides of the phenolic spacer if not that could be your vac leak.
StangLou
Active Member
91FoxBodyGT you are my SAVIOR!!!
Thats exactly what I need to see to figure out how to wire the underneath of my intake.
Not trying to hijack, but YOU DA MAN!!!
Thats exactly what I need to see to figure out how to wire the underneath of my intake.
Not trying to hijack, but YOU DA MAN!!!
50bomber
New Member
Ok, nothing brilliant to add here, but when I installed my Eddy for the first time (now x3), I used the FMS/Felpro 1262 intake gasket ( 
) that had these weird ass bolt holes in the middle of coolant ports, which I neglected to trim, and that made my car run a little hotter (like 1 bar higher) as well as having a coolant surge before the thermostat opened. Since then I ditched the damn gasket and got me a different Felpro gasket from PepBoys, the one with rubber endseals ( 
) for $20, which had the correctly shaped coolant ports. And oh yeah, my stock headead/cam car picked up hp/tq all over the powerband after just the Edelbrock install, so I agree that it must be something else like a vacuum leak.
) that had these weird ass bolt holes in the middle of coolant ports, which I neglected to trim, and that made my car run a little hotter (like 1 bar higher) as well as having a coolant surge before the thermostat opened. Since then I ditched the damn gasket and got me a different Felpro gasket from PepBoys, the one with rubber endseals ( ) for $20, which had the correctly shaped coolant ports. And oh yeah, my stock headead/cam car picked up hp/tq all over the powerband after just the Edelbrock install, so I agree that it must be something else like a vacuum leak.
- Apr 11, 2005
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well when i put the spacer i did put both gaskets, top and bottom, but i learned the hard way. the intake got scarred for life since i still have the stock hood. but even with the spacer it felt slow. i took if off and reused one of the gaskets just like that. without dots of silicone or anything. my best guess is that it might be the timing because its on 12. i've heard 10 is normal. you guys think this is it??? 
- Apr 11, 2005
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by the way, your welcome lou. nice to know i helped. without that pic i would have been lost too! lol
just4bob50
Active Member
i definitly think that there are vacume problems. 1. if you have a vac. leak its past the point where air and fuel are metered, which can cuase your motor to run hotter than normal. 2. If it is a vac. leak that is bad enough to effect idle your car will not make full fuel pressure at W.O.T. fuel pressure could be down by as mucch as 10 psi. 3. if your TPS is no set write it will compound any other problems. 4. if your dist. was even 1 tooth off from where it was sopposed to be you wouldnt of even run 15.8 in the 1/4. 5. If you ran your vacume lines inccorectly nothing you do will help untill there write. As for cars getting slower with a street level intake change, almost all that i know of are from impropper install in some form.
