restrictor plates??????????
Senior Member
Joined: Dec 2005
Posts: 340
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From: Auburn, CA
Originally Posted by catch-22
any one have a pic of these restrictor plates for the exhaust so i can get one made. or does anyone in nc have some.
Albert
You might also try restricting your intake. For instance, if you are running single and the inlet to the turbo is 2.75 try, reducing to 2.5 or 2.25. Simular to what Winston Cup car's do to reduce top end HP.
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Grand Poobah of Torque
Joined: Jun 2006
Posts: 186
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From: Clermont, Florida
Originally Posted by ptrhahn
Why would you restrict your exhaust on purpose??!
Sell the midpipe and buy a highflow cat (pre welded), or a good used factory cat from Fritz.
It's more than likely that some cobbled up restriction you put in a midpipe is likely to disturb the air and cause turbulence such that it likely flows WORSE than a decent factory cat. You're just wasting the midpipe, and possibly even costing yourself power as opposed to a factory cat.
It's more than likely that some cobbled up restriction you put in a midpipe is likely to disturb the air and cause turbulence such that it likely flows WORSE than a decent factory cat. You're just wasting the midpipe, and possibly even costing yourself power as opposed to a factory cat.
Originally Posted by dopefishlives
Say your OE cat is clogged and you have a nice S.S. midpipe, but you dont have the larger injectors or tuning to compensate for it and your other mods. Adding the restrictor is a lot cheaper than a weld-on cat or the several hundred dollars in fuel management and tuning.
Grand Poobah of Torque
Joined: Jun 2006
Posts: 186
Likes: 0
From: Clermont, Florida
Originally Posted by ptrhahn
Sell the midpipe and buy a highflow cat (pre welded), or a good used factory cat from Fritz.
It's more than likely that some cobbled up restriction you put in a midpipe is likely to disturb the air and cause turbulence such that it likely flows WORSE than a decent factory cat. You're just wasting the midpipe, and possibly even costing yourself power as opposed to a factory cat.
It's more than likely that some cobbled up restriction you put in a midpipe is likely to disturb the air and cause turbulence such that it likely flows WORSE than a decent factory cat. You're just wasting the midpipe, and possibly even costing yourself power as opposed to a factory cat.
Senior Member
Joined: Oct 2004
Posts: 498
Likes: 0
From: the swamp, fl
There haven't been any reports of the restrictor plates in the exhaust causing any troubles. However, I think it should be an only temporary fix to safeguard against when your lead foot gets the better of you. They should not be used in order for you to WOT your car regularly. I personally have a midpipe in and I am experiencing no creep, however I also have a cosmo fuel pump, 1300cc secondaries, a PFC, and am only boosting on my acuator spring(8psi). I NEVER WOT my car and will not even boost for extended periods of time until I get a good tune on a dyno.
Don't mistake restrictor plates for a fix to boost creep. They are merely as temp. solution until you can port your WG and get fuel/tune to deal with any creep.
That being said, I have a stock man cat in awesome shape with <20k miles on it(came with my car from Fritz Flynn so you know its in good shape).
Don't mistake restrictor plates for a fix to boost creep. They are merely as temp. solution until you can port your WG and get fuel/tune to deal with any creep.
That being said, I have a stock man cat in awesome shape with <20k miles on it(came with my car from Fritz Flynn so you know its in good shape).
All you naysayers of restrictor plates are retarded. Restrictor plates cause only enough restriction to prevent boost creep. They flow better than an OEM cat and weigh about 50lbs less. You old fogeys are behind the times.
