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02-11-2004, 10:17 AM
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#1 |
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or '331 LX Eric'
Join Date: Jan 1999
Location: Columbus, Ohio
Posts: 2,142
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Am I under injected?
Most of you know what I'm running, but for those who don't, here's a quick and dirty breakdown:
331 stroker 10:1 compression Andrerson N-41 cam TFS TW heads with mild porting TFS Street Heat Intake 75 mm TB 75 mm Pro-M 24# injectors w/155lph pump I'm curious as to what you guys think about the 24# injectors. Are they holding me back? Should I step up to a 30# injector and 255 or 190 lph pump? See my sig for ET. Race weight is around 3100 lbs. Thanks, E
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1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60' |
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02-11-2004, 01:09 PM
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#2 |
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Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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The injectors are fine. IMO and not in any way holding you back.
I would however upgradeb the fuel pump to a 190lph. The only thing I see holding you back is your 60ft. Get the 60ft down to a 1.70 and you would come damn close to an 11 second pass.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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02-11-2004, 01:29 PM
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#3 |
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Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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Theres 1 way to tell for sure. Get to a dyno with a wide-band, or better yet, pick up a wide band from AFM and you can see what the A/F is while you are going down the track.
Andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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02-11-2004, 02:16 PM
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#4 |
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or '331 LX Eric'
Join Date: Jan 1999
Location: Columbus, Ohio
Posts: 2,142
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I called Gregg Banish (turbolx) of Livernois / Detroit Speedworks a couple days ago to arrange for a complete dyno tune w/chip burn this April. It will be interesting to see what the wideband shows and to see how much power I'm leaving on the table.
I think I need slicks...this drag radial thing sucks for 60' times.  E
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1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60' |
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02-11-2004, 07:35 PM
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#5 | |
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Rebel Fleet Commander
Join Date: Oct 2001
Location: Huber Heights, OH
Posts: 1,003
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Re: Am I under injected?
Quote:
 Mabey a bigger pump though....
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1993 Mustang GT, PTK w/ T-64 - My Cardomain Webpage 11.25@123.5 on only 8 psi. 10.84@121 on only 1 headgasket    "The Truth is, Your the Weak, and I am the Tyranny of Evil Men!" 
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02-11-2004, 08:28 PM
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#6 |
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I got something to say
Join Date: Sep 2001
Location: San Diego, CA
Posts: 1,557
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i agree with dark. just get a 190lph pump and definently get a dyno tune with a wide band.
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91 LX Hatch 5.0 - made for the twisties 89 LX Hatchback 5.0 5spd. stolen/stripped 4/7/05  http://www.mustangworks.com/cgi-bin/...splay.cgi?3494 1987 Toyota Pickup Ricer Haters Club Member #33 Want a custom gauge cluster for your Vintage Mustang? www.jmeenterprises.com |
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