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#1
06-27-2003, 09:20 AM
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Notice to anyone who took the "restrictor Plate" off DX or STD
That little plate in the intake plenum is there for a reason. Sure you take off the the DPFI top and you see it there and it looks restrictive but it's there to create a whirlwind effect with the air, it's kine like that tornado thing that they advertise on tv all the time. If you took it ou you'll probably notice that you're car is making alot more carbon and soot, this is because your engine's running rich as hell. I have a DTM tip so the soot was coming up on my back window, I put the plate back in and voila no more soot, and no more rich smell. I suggest putting it back in, you didn't gain any hp by taking it out and you're not going to lose any by putting it back in, you'll just have a better air fuel mix which means longer lasting engine for you.
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Why can't money come easier? ok so i had two civic hatchbacks, i totaled one because i wasn't paying attention, the other one i got ran into a creek by an old lady asleep at the wheel, then i got a CRX was being retarded hit a deer at 90 and flipped, so now i drive a 1992 celica GT and i love it, done with being stupid, this one will not be wrecked. 
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#3
06-27-2003, 11:17 AM
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I agree ....after i took mine out i noticed that the car was a lil harder to start sometimes because it would flood out a little and it seemed to run a little bit rich, like you said. I then put it back in and the car started fine everytime.
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#5
06-27-2003, 12:30 PM
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Mine was gone when I bought my car. I'll be swapping a Z6 sometime this summer so I won't have to worry about it much longer.
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1990 Honda Civic Shit-box, Sold.
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#6
06-27-2003, 02:46 PM
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i still got mine! and i figured its there for a reason too. why else would they put it there right?
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94 s-10 bagged, body dropped, 22's, suicide coupe doors, fully shaved, and soon a small block 350 2011 Silverado... Stock Daily driver 
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#7
06-27-2003, 03:20 PM
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Hmm. Don't have that problem. How did you come about to this conclusion.
That plate is their for two reasons. Fuel economy and emissions. Limit airflow and the emissions will drop and the fuel economy will go up. I think i will keep mine out.
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2007 dodge ram hemi sport-the tow/dd 1993 Civic HB-h22 with type s pistons, 125 shot, and some other goodies 1989 CRX(in the works)-h2b plus maybe some spray, or some boost
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#8
06-27-2003, 03:37 PM
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ive driven three DPFI cars, all of them without that plate. and while the shape of the plate does look like it helps create a venturi effect, ive ran the cars on wideband O2 machines and noticed that there is absolutely no difference in the A/F ratio on the car. this is mainly because the MAP sensor knows how much pressure is in the intake manifold, and the ECU sends fuel accordingly. not to mention that if it did start to rich out, the O2 sensor would pick that up and then the ECU would adjust accordingly.
point blank, none of my cars with the DPFI ever ran rich, never had soot or carbon or smoke of any kind coming out of the tailpipe (cept when i punched my cat on one as an experiment). you either have a lazy O2 sensor, a bad cat, a stuck open injector, or a lazy MAP sensor. on another note, i didnt really notice any gains in performance on the cars either, but i know that i can go from my house to LSU campus (90 miles) and back home almost 3 times on a tank of gas. i have to fill up on the way back home on the last trip.
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over 10 grand in parts, and about 300 hours of labor, and i only spent 3k. and then Katrina filled it with mud.
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#9
06-27-2003, 03:40 PM
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Okay, so i used the new honda diagnostic tool. Those things are pretty kick ass.
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2007 dodge ram hemi sport-the tow/dd 1993 Civic HB-h22 with type s pistons, 125 shot, and some other goodies 1989 CRX(in the works)-h2b plus maybe some spray, or some boost
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#10
06-28-2003, 03:04 PM
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Quote:
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over 10 grand in parts, and about 300 hours of labor, and i only spent 3k. and then Katrina filled it with mud.
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#11
06-28-2003, 05:17 PM
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Damn you, i get to drive the oddity five speed. We raced the 2003 oddeseys five speed auto against a V6 accord four speed auto and the oddesy walked it.
 No NSX for me
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2007 dodge ram hemi sport-the tow/dd 1993 Civic HB-h22 with type s pistons, 125 shot, and some other goodies 1989 CRX(in the works)-h2b plus maybe some spray, or some boost
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#12
06-28-2003, 11:30 PM
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I dunno, mine's been out for my past two tanks of gas and i've averaged about 40 MPG in mostly city driving (yeah, crazy). It hasn't been putting out noticably more soot and it doesn't start any worse. The throttle response seems slightly better with it out.
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2003 Civic EX 4D D17A2 (Stock) 5-Speed Manual
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#13
06-28-2003, 11:37 PM
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I took it out of my brothers civic almost a year ago, and have experienced no problems to date... still gets good milage, and there's no extra carbon on the exhaust tip either.
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Honda Enthusiast
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#14
06-28-2003, 11:50 PM
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You have bigger issues than a stupid plate if you only have 2 fuel injectors. DPFI
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http://www.fourthgenhatch.com FOR SALE: Get this stuff out of my house! -Stock hood (red) $30 -Stock Rear Spoiler (red) $30 -Stock mirrors $30/both -Stock side front and rear side glass $30/piece
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#15
06-28-2003, 11:56 PM
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Quote:
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 AF Bay Area Crew 97 Toyota T100 xcab 3.4l v6 5spd 2wd
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