Am I Going to Die?
09-28-2018, 01:59 PM
#1
Am I Going to Die? Drama queen alert!
Just finished up the NX nitrous install (Mainline, single fogger) on the wagon (because family car) and it is set up at a 100 shot (N 52 / G 25).
The driveline is basically a high mileage stock compression LS1, PRC Stg 1 243/799s, CamMotion 228/234 .627"/.612" 112+3, .660 BTR dual springs, Straub trunion kit, ported TBSS intake, Warr 92mm throttle body, 1-7/8" Hookers, cats, 3" exhaust w/cutouts, 4L80E with HD-2 and other bits, FTI 3800 triple disc (because I want to spray through the shifts), S60 w/3.73, and rolling on Toyo TQ 345/40R17s. Fuel system is -8AN to the stock rail fed by a hot wired and BAP'd Walbro 255 into a set of 42pph injectors. The lambda is on point per the LS7 MAF (in a 4" can) at .880 on straight 91 octane. The system has a WOT switch at the throttle body and an MSD window switch (PN 8969) - plus other fail-safes (ie. fuel pressure, bottle heater shutoff, dedicated arming switches, etc). All wrapped up in an assumed heavy-*** G-body wagon.
My slight concern is that this has TR6s stuffed in it (.041" gap) and timing is set up to ramp in from 22-24* from MBT (4000rpm) up to redline (6800rpm), and I plan on having the system activate at 4000rpm (because it already blows the tires off on motor). This timing is pretty conservative on motor alone; I never see KR - so I don't imagine it is going to be an issue on this small shot - yet it all worries me a hair.
Your thoughts please.
Just finished up the NX nitrous install (Mainline, single fogger) on the wagon (because family car) and it is set up at a 100 shot (N 52 / G 25).
The driveline is basically a high mileage stock compression LS1, PRC Stg 1 243/799s, CamMotion 228/234 .627"/.612" 112+3, .660 BTR dual springs, Straub trunion kit, ported TBSS intake, Warr 92mm throttle body, 1-7/8" Hookers, cats, 3" exhaust w/cutouts, 4L80E with HD-2 and other bits, FTI 3800 triple disc (because I want to spray through the shifts), S60 w/3.73, and rolling on Toyo TQ 345/40R17s. Fuel system is -8AN to the stock rail fed by a hot wired and BAP'd Walbro 255 into a set of 42pph injectors. The lambda is on point per the LS7 MAF (in a 4" can) at .880 on straight 91 octane. The system has a WOT switch at the throttle body and an MSD window switch (PN 8969) - plus other fail-safes (ie. fuel pressure, bottle heater shutoff, dedicated arming switches, etc). All wrapped up in an assumed heavy-*** G-body wagon.
My slight concern is that this has TR6s stuffed in it (.041" gap) and timing is set up to ramp in from 22-24* from MBT (4000rpm) up to redline (6800rpm), and I plan on having the system activate at 4000rpm (because it already blows the tires off on motor). This timing is pretty conservative on motor alone; I never see KR - so I don't imagine it is going to be an issue on this small shot - yet it all worries me a hair.
Your thoughts please.
09-28-2018, 02:49 PM
#2
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With mods in my signature I ran tr6's gapped at .040 on a 100 shot. I have since switched to br7's gapped at .030. The tr6's ran fine, but i got tired of always worrying and wondering if I was on the ragged edge. And just for reference the car runs exactly the same on both plugs n/a. A good tune can easily do that. If it were me id switch the plugs
