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#1 |
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Turbo Member
Join Date: Oct 2007
Location: Pewaukee/Elkhorn WI
Age: 19
Posts: 1,534
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A/F ratio for spray
Well im gonna be ordering my wideband tomorow and by the time it gets here i want to know what i should get my A/F ration to when spraying a 50 shot then a 75 shot. Oh and an idle A/F and when i let of the gas/spray.
So anyone know?
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95 whitePgt, Fstb, Rust free Moonroof mod To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Polk Audio db 12"s, Alpine 850 Amp, Speedhut overlay, HIDs, Custom VRS catback, Headers, JJ Resonated Testpipe, CAI, DXD stage 1, Mx3 fly, RR inserts, Trans saver, V-powers & wires, Afpr, LC1, Zex'd |
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#2 |
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God Mod
Join Date: Feb 2000
Location: Socal's Surf City
Age: 31
Posts: 21,563
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I'd watch to make sure it stays in the 11-12 range. If you're getting to 12.5+, I'd pull fuel.
I'd just tune if for n/a though and use the plug readings to tweak the nitrous jet combos.
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Chuck | ProbeTalk's Mega Moderator | |
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#3 | |
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Supercharged Member
Join Date: Aug 2006
Location: Binghamton, NY
Age: 22
Posts: 1,200
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Quote:
Also make sure your intake clamps are Really tight and you don't spray too soon (keep it above 3K at the bare minimum). I've found out the hard way Jeremy
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#4 | |
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Member
Join Date: Oct 2008
Location: Saint Cloud, WI
Posts: 393
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Quote:
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-1994 PGT ZE- 5 spd, fully bolted, zex, & more SOLD -87' N/A Toyota Supra- BIG PLANS! -1993 PGT: The beater, 5 spd, silver/red/flat black, rust free moonroof, and rust everywhere else |
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#5 |
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Supercharged Member
Join Date: Aug 2006
Location: Binghamton, NY
Age: 22
Posts: 1,200
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Usually it will backfire if over a 50 shot. Blows the intake tube apart and bends your VRIS butterflies. The motor can't consume it all quick enough and really you're just wasting it
Jeremy P.S. See, look: http://videos.streetfire.net/video/K...ous_714016.htm
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To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 05 Mazda 3s: lighting mods and wheels To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. : 3" body lift, 35's, cammed, full exhaust Back to terrorize with drift-eze... Eventually To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
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#6 | |
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Turbo Member
Join Date: Oct 2007
Location: Pewaukee/Elkhorn WI
Age: 19
Posts: 1,534
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Quote:
Just for the record.. Higher number is rich and lower number is lean?
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95 whitePgt, Fstb, Rust free Moonroof mod To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Polk Audio db 12"s, Alpine 850 Amp, Speedhut overlay, HIDs, Custom VRS catback, Headers, JJ Resonated Testpipe, CAI, DXD stage 1, Mx3 fly, RR inserts, Trans saver, V-powers & wires, Afpr, LC1, Zex'd |
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#7 |
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Supercharged Member
Join Date: Aug 2006
Location: Binghamton, NY
Age: 22
Posts: 1,200
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Plugs are THE way to know what is going on if you can read them right. White and brown is good. White with brown spots is bad.
No, it's a ratio of air:fuel. 14:1 is lean (less fuel for the amount of air) while 12.5:1 is richer (more fuel for the amount of air). Closer to 1:1, the richer it is. Jeremy
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To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 05 Mazda 3s: lighting mods and wheels To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. : 3" body lift, 35's, cammed, full exhaust Back to terrorize with drift-eze... Eventually To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
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#8 |
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PT Know it All
Join Date: Feb 2002
Location: woodbridge,va
Posts: 4,498
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i kept my as close to 13.1 as possible, i was able to keep running 113shot cold fusion jet on my stock 110hp n/a motor. running more nitrous than the motor output is never recomended but hey its a low compression motor and still running strong
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mx6lx...world record...fastest n/a 2.2.15.2@93mph, 13.5@103mph on 87shot. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 1988 mx6gt..f2 motor,hx35 turbo, 460inj,hks fcon,n20 1990 pgt (DIY PAGE) To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. people will doubt what you say or who you are,but will always believe what you do |
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#9 |
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God Mod
Join Date: Feb 2000
Location: Socal's Surf City
Age: 31
Posts: 21,563
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Sorry. Typed from blackberry...auto correction didn't like my "/" ...pull nitrous/add fuel/a little of both.
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Chuck | ProbeTalk's Mega Moderator | |
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#10 |
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STILL building a motor...
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my car is tuned for 12.0-12.3 on the jug..
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-John Kessler- The Original Mayonnaise '96 PGT- 10k+ RPM is STILL coming..12:1|I-Beams|3" Exhaust|One-off Longtubes|250deg. .400" lift Cams|Ported Heads|Interprep Springs|Custom SLA's|Ferrea Valves|ITB goodness|Ext. Oil Pump|10000rpm|PAR 3rd|Custom 1st gear|MFactory LSD|Progressive 175 shot.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Current: Colt Tri-Flow Test Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. '02 Nissan Maxima SE- Tint, 6 spd, Stock Maxima E.T. & Trap Speed Record Holder
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 14.01@99.77mph 214whp/233wtq |
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#11 |
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Newbie
Join Date: Nov 2009
Posts: 14
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Exactly how necessary is it to tune? I've never really heard of anyone tuning for nitrous before now.
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#12 |
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Turbo Member
Join Date: Oct 2007
Location: Pewaukee/Elkhorn WI
Age: 19
Posts: 1,534
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Ok thx guys for the help. But these numbers are coming from when you are actually spraying correct? Like his-
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95 whitePgt, Fstb, Rust free Moonroof mod To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Polk Audio db 12"s, Alpine 850 Amp, Speedhut overlay, HIDs, Custom VRS catback, Headers, JJ Resonated Testpipe, CAI, DXD stage 1, Mx3 fly, RR inserts, Trans saver, V-powers & wires, Afpr, LC1, Zex'd |
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#13 |
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STILL building a motor...
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..yes thus the 'on the jug' part.
Glick how have you not heard of one tuning for nitrous? you have to tune to for in one way or another!
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-John Kessler- The Original Mayonnaise '96 PGT- 10k+ RPM is STILL coming..12:1|I-Beams|3" Exhaust|One-off Longtubes|250deg. .400" lift Cams|Ported Heads|Interprep Springs|Custom SLA's|Ferrea Valves|ITB goodness|Ext. Oil Pump|10000rpm|PAR 3rd|Custom 1st gear|MFactory LSD|Progressive 175 shot.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Current: Colt Tri-Flow Test Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. '02 Nissan Maxima SE- Tint, 6 spd, Stock Maxima E.T. & Trap Speed Record Holder
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 14.01@99.77mph 214whp/233wtq |
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#14 |
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Supercharged Member
Join Date: Aug 2006
Location: Binghamton, NY
Age: 22
Posts: 1,200
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The manufacturers do a good job providing you with the correct jet settings most of the time but to get to most out of it you need to know what your air/fuel is doing and pull some timing to be safe.
Jeremy
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To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 05 Mazda 3s: lighting mods and wheels To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. : 3" body lift, 35's, cammed, full exhaust Back to terrorize with drift-eze... Eventually To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. |
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#15 |
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Newbie
Join Date: Nov 2009
Posts: 14
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I'm not experienced in the area, but you're changing permanent settings for a temporary fuel condition. To me it just doesn't make sense.
**Disclaimer** I am NOT experienced in this area, at all. |
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#16 |
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Turbo Member
Join Date: Oct 2007
Location: Pewaukee/Elkhorn WI
Age: 19
Posts: 1,534
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Its because its still sometype of power adder. Not exactly forced induction, but any big power adder u should "tune" it to the right settings. More air/fuel= bigger boom and more heat so u need to control that boom and heat. No matter how temporary it is. As far as i understand it, all ur really changing is the fuel pressure with an afpr, but thats not even needed if u have a wet kit. And then u are also chaning the fuel/nitrous jets.
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95 whitePgt, Fstb, Rust free Moonroof mod To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Polk Audio db 12"s, Alpine 850 Amp, Speedhut overlay, HIDs, Custom VRS catback, Headers, JJ Resonated Testpipe, CAI, DXD stage 1, Mx3 fly, RR inserts, Trans saver, V-powers & wires, Afpr, LC1, Zex'd Last edited by suprakid366; November 11th, 2009 at 06:16 PM. |
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#17 | |
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STILL building a motor...
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Quote:
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-John Kessler- The Original Mayonnaise '96 PGT- 10k+ RPM is STILL coming..12:1|I-Beams|3" Exhaust|One-off Longtubes|250deg. .400" lift Cams|Ported Heads|Interprep Springs|Custom SLA's|Ferrea Valves|ITB goodness|Ext. Oil Pump|10000rpm|PAR 3rd|Custom 1st gear|MFactory LSD|Progressive 175 shot.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Current: Colt Tri-Flow Test Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. '02 Nissan Maxima SE- Tint, 6 spd, Stock Maxima E.T. & Trap Speed Record Holder
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 14.01@99.77mph 214whp/233wtq |
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#18 |
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God Mod
Join Date: Feb 2000
Location: Socal's Surf City
Age: 31
Posts: 21,563
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I stopped reading at ..I'm not experienced. Please stop posting in this thread.
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Chuck | ProbeTalk's Mega Moderator | |
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#19 |
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Supercharged Member
Join Date: Aug 2006
Location: Binghamton, NY
Age: 22
Posts: 1,200
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Haha. You don't tune any different while not on the spray, only while on the spray.
I.E. you don't just up the fuel pressure to get more fuel, just as you don't on a boosted car cause when you're not boosting (cruising and idle) your car will run like balls cause it will be rich. An FMU adjusts fuel pressure to boost pressure, that's the cheap way of getting more fuel on a boosted car. With that said, MS can switch fuel maps when the nitrous is activated OR the cheaper way is to just adjust the fuel jet on your wet kit, with a dyno and a wideband. If you're rich with a .024 jet, switch to an .023 and run it again!! That's called tuning too Jeremy
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To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 05 Mazda 3s: lighting mods and wheels To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. : 3" body lift, 35's, cammed, full exhaust Back to terrorize with drift-eze... Eventually To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Last edited by KLDE Wagon; November 12th, 2009 at 12:03 AM. |
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#20 |
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God Mod
Join Date: Feb 2000
Location: Socal's Surf City
Age: 31
Posts: 21,563
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^^^ or fork over a c-note and a handful of jets and I'll tune it for you.
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Chuck | ProbeTalk's Mega Moderator | |
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#21 |
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POC Mod
Join Date: Feb 2002
Location: st. louis
Age: 25
Posts: 3,369
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Yes....lets all resort to a haphazard tuning method cause that is the best forward progression i know of!
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-J-Rod- 301whp 293wtq 9.5psi 14 degrees To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 93 PGT-T To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 96 PGT Reacquired, Revived, and Resold 08 Mazdaspeed 3 GT 280whp/313wtq To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. I can neither confirm nor deny that we may or may not be in what may or may not be a position to either confirm or deny what you may or may not have allegedly alleged. |
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#22 |
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Turbo Member
Join Date: Oct 2007
Location: Pewaukee/Elkhorn WI
Age: 19
Posts: 1,534
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alright just opened my wideband and holy hell, my jaw dropped. Read through the manual and theres alot of crap u have to do for this thing. Cant believe i need to wire in this push button thing with an LED. The software is cool tho. But anyways whats the best stock o2 sensor to remove for the wideband one? The front one or the rear one?
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95 whitePgt, Fstb, Rust free Moonroof mod To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Polk Audio db 12"s, Alpine 850 Amp, Speedhut overlay, HIDs, Custom VRS catback, Headers, JJ Resonated Testpipe, CAI, DXD stage 1, Mx3 fly, RR inserts, Trans saver, V-powers & wires, Afpr, LC1, Zex'd |
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#23 |
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STILL building a motor...
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if you have no leaks just plug the two and have a bung put in before the cat
__________________
-John Kessler- The Original Mayonnaise '96 PGT- 10k+ RPM is STILL coming..12:1|I-Beams|3" Exhaust|One-off Longtubes|250deg. .400" lift Cams|Ported Heads|Interprep Springs|Custom SLA's|Ferrea Valves|ITB goodness|Ext. Oil Pump|10000rpm|PAR 3rd|Custom 1st gear|MFactory LSD|Progressive 175 shot.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Current: Colt Tri-Flow Test Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. '02 Nissan Maxima SE- Tint, 6 spd, Stock Maxima E.T. & Trap Speed Record Holder
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 14.01@99.77mph 214whp/233wtq |
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#24 |
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Turbo Member
Join Date: Oct 2007
Location: Pewaukee/Elkhorn WI
Age: 19
Posts: 1,534
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what? cant i just take out a factory 02, and replace it with the wideband one? And leave the other factory 02 in and wired up?
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95 whitePgt, Fstb, Rust free Moonroof mod To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Polk Audio db 12"s, Alpine 850 Amp, Speedhut overlay, HIDs, Custom VRS catback, Headers, JJ Resonated Testpipe, CAI, DXD stage 1, Mx3 fly, RR inserts, Trans saver, V-powers & wires, Afpr, LC1, Zex'd |
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#25 |
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STILL building a motor...
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why only read from one bank? it would cost you like 10 bucks to have a bung welded in so you can account for both banks..
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-John Kessler- The Original Mayonnaise '96 PGT- 10k+ RPM is STILL coming..12:1|I-Beams|3" Exhaust|One-off Longtubes|250deg. .400" lift Cams|Ported Heads|Interprep Springs|Custom SLA's|Ferrea Valves|ITB goodness|Ext. Oil Pump|10000rpm|PAR 3rd|Custom 1st gear|MFactory LSD|Progressive 175 shot.. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Current: Colt Tri-Flow Test Car To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. '02 Nissan Maxima SE- Tint, 6 spd, Stock Maxima E.T. & Trap Speed Record Holder
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. 14.01@99.77mph 214whp/233wtq |
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