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Joined: May 2000
Posts: 21,197
I have no life
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I have no life
Joined: May 2000
Posts: 21,197 |
Does it change your life now? 
-'96 SE MTX 3L
-'98 SVT 1,173 of 6,535
-'05 Mazda 6s, loaded, g/f's ride
-Need a 96-00 manual on CD? PM or email me
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Joined: Aug 2002
Posts: 310
CEG\'er
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CEG\'er
Joined: Aug 2002
Posts: 310 |
From what I understand, the ECU can only correct about +/- 8% for fuel. If you go from 17's to 19's, that's almost 12% and you would run rich.
I'll put holes in him!!
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Joined: Sep 2000
Posts: 7,025
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2000
Posts: 7,025 |
Originally posted by bnoon:
By the way, I disagree with Mr. Hahn. You can run the 3L with 19# injectors just fine on the stock ECU without throwing a code.
pssst.  He doesnt have an svt which means he will have to upgrade his injectors to at least 19 lb. He will definetely need a tune. I think Todd proved my point. I stand by my original comment. 
Jim Hahn
1996 T-Red Contour SE Reborn 4/6/04
3.0L swap and Arizona Dyno Chip Turbo Kit
364 whp, 410 wtq @ 4,700 rpm
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Joined: Oct 2003
Posts: 718
Veteran CEG\'er
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Veteran CEG\'er
Joined: Oct 2003
Posts: 718 |
A local cougar owner has a 3L swap with 19's in his car without a chip...let's just say it "stinks" when you stand by it.  Not to mention without a tune on his car my 2.5L cougar w/o nitrous outpulls his SVT 3L ...he needs a tune. 
1999 Cougar V6 MTX
SVT UIM/LIM/65mm TB, I/H/E, Fidanza/SPEC III/Torsen, Koni/GC's, 19" Icon wheels w/ Pirelli rubber, NX Wet Kit
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Joined: Aug 2001
Posts: 5,810
Hard-core CEG'er
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Hard-core CEG'er
Joined: Aug 2001
Posts: 5,810 |
Originally posted by todras:
Mine starts and idles fine. Car runs very rich though. Needs a tune big time. I have 19's on a 96 SE computer BTW. Also don't have IMRC due to oval port heads.
Something as simple as the SAFC will be enough to pull fuel versus rpm and throttle position since you are only running 19s.
I recommend just getting a used SAFC and pull about 12-15% fuel below 1000rpm and idle, then progressively increase it until you are pulling only about 8-10% in the midrange, 2500-4000 rpm range. After that you can pull maybe 5% and then leave it until redline. This would probably get you more power right off the bat and still be safe enough.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
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Joined: Jun 2000
Posts: 2,621
Redneck Troll
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Redneck Troll
Joined: Jun 2000
Posts: 2,621 |
Originally posted by beyondloadedSE:
Originally posted by bnoon:
By the way, I disagree with Mr. Hahn. You can run the 3L with 19# injectors just fine on the stock ECU without throwing a code.
pssst. He doesnt have an svt which means he will have to upgrade his injectors to at least 19 lb. He will definetely need a tune. I think Todd proved my point. I stand by my original comment.
Psst back... I ran mine without a tune on the 19's, and later even with the 24's for almost 3 years. Never threw a rich code (though had a couple for exhaust leaks along the way). Stock SE ECU will run it fine for the time being, but as I said earlier, there's probably some power left in any custom combination without a custom tune.
http://www.bnmotorsports.com
"And I will strike down upon thee with great vengeance and furious anger those who attempt to poison and destroy my CEG brothers. And you will know I am the Moderator when I lay my vengeance upon you."
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