How about some tech in the tech forum?
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Does not race from a roll
Joined: Jun 2002
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How about some tech in the tech forum?
OK, heres one. We all know what the EGR spacer is there for, but lets say in a race car running a single nitrous nozzle before the throttle plate, what would be the advantages or disadvantages of removing the EGR completely? Would it effect velocity or help it? This is something I'm contemplating on the real street car and will be testing. Anyone have any ideas or input? I have the option of completely removing the EGR spacer and I'm curious to find out what the outcome will be....
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By removing the EGR plate it would shorten the runner length of the upper pelenum and you would gain more torque than h.p. kind of like using a long runner single plane carb intake vs. a short runner dual plane. The shorter (dual) planes are always better for torque because of less velocity. At least that is how I understand it.
There is my .02..
There is my .02..
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Joined: May 2002
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Like FordMan says the plumbing changes could cause some mixed tuning changes. The engineers usually are pretty exact at designing how the pulse frequencies and flow intertias help fill the cylinders so the safe bet if the none of the ford guys have a reason to get rid of it keep it as a spacer.
Either way I would at least recommend disabling it so it no longer adds exhaust to your intake mix.
EGR is only there to reduce smog producing emissions. No good performance car should have one.
Since I am not intimate with 5.0 plumbing can the spacer be drilled for your nozzle so you don't have to put holes in more valuable item?
Either way I would at least recommend disabling it so it no longer adds exhaust to your intake mix.
EGR is only there to reduce smog producing emissions. No good performance car should have one.
Since I am not intimate with 5.0 plumbing can the spacer be drilled for your nozzle so you don't have to put holes in more valuable item?
Pull Over
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Originally posted by "FordMan"
By removing the EGR plate it would shorten the runner length of the upper pelenum and you would gain more torque than h.p. kind of like using a long runner single plane carb intake vs. a short runner dual plane. The shorter (dual) planes are always better for torque because of less velocity. At least that is how I understand it.
There is my .02..
By removing the EGR plate it would shorten the runner length of the upper pelenum and you would gain more torque than h.p. kind of like using a long runner single plane carb intake vs. a short runner dual plane. The shorter (dual) planes are always better for torque because of less velocity. At least that is how I understand it.
There is my .02..
short runners = horsepower
also the egr spacer should not make much of a difference in power (length wise) due to the fact that it is not a "tuned" runner of the intake. it may make SOME change but not as much as say shortening the upper intake by 1". the actual individual runners length help determine the rpm the torque is produced. this would make an interesting test though.
i wonder if removing it would reduce some velocity of the air right after the throttle blade (thus affecting the n20) as removing it would allow the air to "dump" into the upper quickly instead of the extra area the spacer provides.
Sammy, i have an egr eliminator bracket if you want it. i still need to stop by to bring you the cart.
steve
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"I'm in the 82nd Airborne and this is as far as the bastards are going!"
93 Cobra, R302 331,canfields,T-76,TKO......sold
87 Coupe, 466, Edelbrock heads,Vic jr,150 shot 10.41@129.5...sold
2006 Honda 450ER .....new toy
Do you own a Torch Red FRC and tremble every time you drive under I75 on Hwy 60 and look in your rearview mirror? If so you are suffering from what is known as Cobraphobia.
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Thread Starter
Does not race from a roll
Joined: Jun 2002
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Originally posted by "race495"
you have it backwards. long runners = torque
short runners = horsepower
also the egr spacer should not make much of a difference in power (length wise) due to the fact that it is not a "tuned" runner of the intake. it may make SOME change but not as much as say shortening the upper intake by 1". the actual individual runners length help determine the rpm the torque is produced. this would make an interesting test though.
i wonder if removing it would reduce some velocity of the air right after the throttle blade (thus affecting the n20) as removing it would allow the air to "dump" into the upper quickly instead of the extra area the spacer provides.
Sammy, i have an egr eliminator bracket if you want it. i still need to stop by to bring you the cart.
steve
Originally Posted by FordMan
By removing the EGR plate it would shorten the runner length of the upper pelenum and you would gain more torque than h.p. kind of like using a long runner single plane carb intake vs. a short runner dual plane. The shorter (dual) planes are always better for torque because of less velocity. At least that is how I understand it.
There is my .02..
There is my .02..
short runners = horsepower
also the egr spacer should not make much of a difference in power (length wise) due to the fact that it is not a "tuned" runner of the intake. it may make SOME change but not as much as say shortening the upper intake by 1". the actual individual runners length help determine the rpm the torque is produced. this would make an interesting test though.
i wonder if removing it would reduce some velocity of the air right after the throttle blade (thus affecting the n20) as removing it would allow the air to "dump" into the upper quickly instead of the extra area the spacer provides.
Sammy, i have an egr eliminator bracket if you want it. i still need to stop by to bring you the cart.
steve
__________________
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Smackin down LS1s since 99', LQ4s too...
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Smackin down LS1s since 99', LQ4s too...
