what should a/f be when spraying a t.n.t 150 shot?
07-21-2005, 03:01 PM
#1
what should a/f be when spraying a t.n.t 150 shot? my a/f is around 12.5 on motor and i use the ramcharger box to pull timing. does the kit lean out by it self when it's sprayed? t.n.t told me i should be in the 11.0-11.5 a/f with their kit. if this is true how do i lean it out when my car had been tuned already? i have a holly 255 intank pump with stock 28.8 injectors. car made 434hp and 389tq on the motor, stang dyno. thanks, mike c.
Last edited by mike c.; 07-21-2005 at 09:25 PM.
07-21-2005, 03:53 PM
#2
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Do you know what your A/F ratio is on the bottle. If your running 12.5 on the motor then the TNT jettings should put your A/F ratio in the low 11s. What do you mean by does the kit lean itself out? Is it running pig rich on the bottle? If so, back down your fuel jets.
07-21-2005, 04:15 PM
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It would be the fuel system and not the PCM since he's running a wet set up. Last I knew TNT jetted for 50-55psi. That Walbro should have him running a steady 58-60psi which would throw him rich. Every car is different but, my car runs 12.6 N/A and 11.0-11.2 with the stock TNT jettings and just a Walbro pump. 
07-21-2005, 04:18 PM
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Well if he should see if he is a touch rich w/o the n20 on....
That is what I was getting at...
If the primary not the enrich fuel system was a touch rich then it could be part of it..
As for the n20 enrich fuel circuit get a adjustable fpr and dial it in for the desired AFR...
That is what I was getting at...
If the primary not the enrich fuel system was a touch rich then it could be part of it..
As for the n20 enrich fuel circuit get a adjustable fpr and dial it in for the desired AFR...
