RUNNING LEAN ?
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Senior Member
Joined: Feb 2000
Posts: 2,141
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From: lancaster,pa. usa
RUNNING LEAN ?
hey guys JL here. ive been hearing alot of people saying the only reason my truck runs in the 12's is because my program is way to lean. well i just got back from superchips and got the A/F 10:9 i don't think thats too lean.... i just changed my program while down there and now i'm 11:4 is that to lean ? (don't think so)! here is my dyno results!
330 hp / 491 ft.lbs
491 @ 2,500
475 @ 2,600 to 4,200
425 @ 4,300 to 4,800
325 @ 4.900 to 5,200
good enough for me ! i'll be testing at the track fridaynight i'll let you know how it goes........ oh yea we did make 501 ft.lbs with 1 program but decided this was the best one...........
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93 cobra 10.90@127.00
99 lightning (black)
e.t. 12.85 @ 105.1
best mph 105.4
60 ft. 1.85
superchiped
johnnylightning ram air
(man i luv this truck)
cobra93474@aol.com
330 hp / 491 ft.lbs
491 @ 2,500
475 @ 2,600 to 4,200
425 @ 4,300 to 4,800
325 @ 4.900 to 5,200
good enough for me ! i'll be testing at the track fridaynight i'll let you know how it goes........ oh yea we did make 501 ft.lbs with 1 program but decided this was the best one...........
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93 cobra 10.90@127.00
99 lightning (black)
e.t. 12.85 @ 105.1
best mph 105.4
60 ft. 1.85
superchiped
johnnylightning ram air
(man i luv this truck)
cobra93474@aol.com
Senior Member
Joined: Apr 2000
Posts: 1,173
Likes: 0
From: Allen, TX, USA
Looks great, JohnnyL!
I'd say 11.4 is excellent for 93 octane gas. You're definitely not running lean!
FWIW, my PSP chip gets the A/F ratio down in the 11.8-11.7 range. The Superchip was actually a bit leaner than this (like 12.0:1) using this particular wide-band meter.
Quick question...the guys at the dyno report that running the wide-band on a car equipped with cats will make it read leaner than it really is. True or false? Makes a little sense to me, but I'd like to hear from others.
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Wes Tarbox
90 LX 5.0 (10.69 @ 134.7)--597rwhp/590rwtq
96 Cobra (12.63 @ 114.5)--392rwhp/433rwtq
99 Lightning (13.20 @ 103.3)--364rwhp/444rwtq
00 Expedition XLT 5.4
http://members.aol.com/Wa2fst/index.html
I'd say 11.4 is excellent for 93 octane gas. You're definitely not running lean!
FWIW, my PSP chip gets the A/F ratio down in the 11.8-11.7 range. The Superchip was actually a bit leaner than this (like 12.0:1) using this particular wide-band meter.
Quick question...the guys at the dyno report that running the wide-band on a car equipped with cats will make it read leaner than it really is. True or false? Makes a little sense to me, but I'd like to hear from others.
------------------
Wes Tarbox
90 LX 5.0 (10.69 @ 134.7)--597rwhp/590rwtq
96 Cobra (12.63 @ 114.5)--392rwhp/433rwtq
99 Lightning (13.20 @ 103.3)--364rwhp/444rwtq
00 Expedition XLT 5.4
http://members.aol.com/Wa2fst/index.html
Senior Member
Joined: Oct 1999
Posts: 2,497
Likes: 0
From: EVERYWHERE
Hey Johnny,
That does not seem too lean to me. Glad to hear you found improvements at Superchips.
I know that I should also have my air/fuel ratio checked. As you know,by the look of my plugs, I am running a little too RICH. Sent you an e-mail, but havent heard from ya'....
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Spiro-TEAM PSP
BLK. #1476
Best run to date
12.753 @107.98
Best 60` 1.84
Best m.p.h. 107.98
@ 4700 lbs.
"Empty Pockets Racing"Drag Race Team NJ-DE
Spiro99SVT@aol.com
LAUNCH HARD
[This message has been edited by Spiro99SVT (edited 08-24-2000).]
That does not seem too lean to me. Glad to hear you found improvements at Superchips.
I know that I should also have my air/fuel ratio checked. As you know,by the look of my plugs, I am running a little too RICH. Sent you an e-mail, but havent heard from ya'....
------------------
Spiro-TEAM PSP
BLK. #1476
Best run to date
12.753 @107.98
Best 60` 1.84
Best m.p.h. 107.98
@ 4700 lbs.
"Empty Pockets Racing"Drag Race Team NJ-DE
Spiro99SVT@aol.com
LAUNCH HARD
[This message has been edited by Spiro99SVT (edited 08-24-2000).]
Senior Member
Joined: Jan 2000
Posts: 833
Likes: 0
From: IL
Johnny,
haven't been out to track yet because of that computer thing but had some 65 degree air out the other morning...Truck did that little tail dance thing on 1-2 shift. planning to give the ram air as well as those 28x11x15 Goodyears a workout Sept 1.
Jim
haven't been out to track yet because of that computer thing but had some 65 degree air out the other morning...Truck did that little tail dance thing on 1-2 shift. planning to give the ram air as well as those 28x11x15 Goodyears a workout Sept 1.
Jim