Mr URL
Member
- Joined
- May 24, 2001
Re: Re: Re: Re: Re: Fragged another one - how long should they last?
>I was at +12% on WOT fueling with the T+/E, LS-1 MAF.
Really? Seems kinda high setting. I run about the same times as you in my GN and I have it set at zero with injectors in the 80's% range with 45 psi static pressure and 24 psi boost. My T-Type is running in the 100% range with Translator set to 2% rich but has P&P heads, cam, TE-63E turbo, V4R IC, etc. My GN runs ~380 gps air flow 24 psi while T-Type is ~460 gps at 22 psi.
>Generally the duty cycle is in the mid 90's. I've got a couple of >frames with a DC of 100%, usually at the top of each gear.
>I am going to be disappointed if I am out of injector with the >50's and an 11.90 car. Heck I took the Blues to the low 12's. >These 50's have to have more head room than 11.90 with a >3,625 Lb. GN. Don't folks scare the 10's with these injectors?
I doubt you are out of injector but I don't know what effect the high altitude as on the equation though. You would know better than me. I know guys running 10's before going static. With proper fuel flow they shouldn't really be maxed until like 10.60's.
>The pump on the other hand is a 4 year old XP with Volt >Booster. Fuel pressure was 45 line off, pressure moves with >boost. 45 line off and 25 PSI puts the 50's at the magic 70.
Your pump may be getting weak? With 45 psi static and the way our fuel regulators work the injectors are still only seeing 45 psi. I don't think that is your problem. Maybe a double pumper will help you out. My GN with a single 340 the O2's start dropping off in 3rd and 4th gear (830 to 760). In my T-Type with a double pumper and more hp is flat as a board from start to finish (800 - 800)
>I think I remember a while back talk that the 50's kind of wig >out at the magic 70 - maybe there is something there?
I don't think so. I know guys running 30 psi boost with MSD-50's having 47 psi static pressure without problems cause they are still actually seeing 47 psi fuel pressure.
>I was at +12% on WOT fueling with the T+/E, LS-1 MAF.
Really? Seems kinda high setting. I run about the same times as you in my GN and I have it set at zero with injectors in the 80's% range with 45 psi static pressure and 24 psi boost. My T-Type is running in the 100% range with Translator set to 2% rich but has P&P heads, cam, TE-63E turbo, V4R IC, etc. My GN runs ~380 gps air flow 24 psi while T-Type is ~460 gps at 22 psi.
>Generally the duty cycle is in the mid 90's. I've got a couple of >frames with a DC of 100%, usually at the top of each gear.
>I am going to be disappointed if I am out of injector with the >50's and an 11.90 car. Heck I took the Blues to the low 12's. >These 50's have to have more head room than 11.90 with a >3,625 Lb. GN. Don't folks scare the 10's with these injectors?
I doubt you are out of injector but I don't know what effect the high altitude as on the equation though. You would know better than me. I know guys running 10's before going static. With proper fuel flow they shouldn't really be maxed until like 10.60's.
>The pump on the other hand is a 4 year old XP with Volt >Booster. Fuel pressure was 45 line off, pressure moves with >boost. 45 line off and 25 PSI puts the 50's at the magic 70.
Your pump may be getting weak? With 45 psi static and the way our fuel regulators work the injectors are still only seeing 45 psi. I don't think that is your problem. Maybe a double pumper will help you out. My GN with a single 340 the O2's start dropping off in 3rd and 4th gear (830 to 760). In my T-Type with a double pumper and more hp is flat as a board from start to finish (800 - 800)
>I think I remember a while back talk that the 50's kind of wig >out at the magic 70 - maybe there is something there?
I don't think so. I know guys running 30 psi boost with MSD-50's having 47 psi static pressure without problems cause they are still actually seeing 47 psi fuel pressure.