lightspeed240
truck it!
My new MSD digital 6 ceased to function after only having it on the truck for probably 1500 miles. At this point, I am totally fed-up with MSD. Ive heard of several people having recurring issues with other MSD ignitions on syclones/tyhpoons, including the digital 7 and 7a's. The 6a on my 240 died after a fairly short time, and some of my other mustang friends tend to consider them "disposable" items.
Enough about that, but Im looking for feedback on either the crane hi-6s or the accell 300+ setups. Id prefer to go with the plug-and-play harness, which I had with my MSD digital 6 and MSD coil setup. I did notice a definate improvement with the MSD setup, although I have to admit that Im running the stock ingition with just the MSD coil now, and its an imporovement over the stock coil.
A little about my setup... I recently went from a pt60 to a pt67 setup. With the pt60 and pure stock ignition/coil, I could only run about 21 psi with alky before flame-out (around .030 gap.). With the MSD digital 6 and MSD coil, I never exceeded the ignition capability (26 psi with alky/93 octane.) With the pt67 and stock ignition, with just the MSD coil, I can run 25 psi on alky/93 octane, which is all I want to run with this setup. The issue comes in with 50/50 114/93 octane mix and alky (less alky though.) I can now only run about 21 psi without flameout. I will say that the truck runs better on 50/50 racegas and alky at 21 psi than it did with 93 octane and alky at 25 psi. BTW, the truck runs somewhat conservative timing, and is tuned to 0-1 degree retard at 25 psi and alky on 93 octane, at 11.3-11.4 AFR. The power improvement seems to come from the fact I can run less alky, which is leaning it out a little and letting it run more timing at that leaner AFR before detonation.
I would like to add that I dont want to undergap my plugs any more than I have to. Ive had bad drivability with that in the past, so I only plan to reduce the gap further if I cant get an ignition to handle it fully at this gap.
Anyway, suggestions are appreciated.
Enough about that, but Im looking for feedback on either the crane hi-6s or the accell 300+ setups. Id prefer to go with the plug-and-play harness, which I had with my MSD digital 6 and MSD coil setup. I did notice a definate improvement with the MSD setup, although I have to admit that Im running the stock ingition with just the MSD coil now, and its an imporovement over the stock coil.
A little about my setup... I recently went from a pt60 to a pt67 setup. With the pt60 and pure stock ignition/coil, I could only run about 21 psi with alky before flame-out (around .030 gap.). With the MSD digital 6 and MSD coil, I never exceeded the ignition capability (26 psi with alky/93 octane.) With the pt67 and stock ignition, with just the MSD coil, I can run 25 psi on alky/93 octane, which is all I want to run with this setup. The issue comes in with 50/50 114/93 octane mix and alky (less alky though.) I can now only run about 21 psi without flameout. I will say that the truck runs better on 50/50 racegas and alky at 21 psi than it did with 93 octane and alky at 25 psi. BTW, the truck runs somewhat conservative timing, and is tuned to 0-1 degree retard at 25 psi and alky on 93 octane, at 11.3-11.4 AFR. The power improvement seems to come from the fact I can run less alky, which is leaning it out a little and letting it run more timing at that leaner AFR before detonation.
I would like to add that I dont want to undergap my plugs any more than I have to. Ive had bad drivability with that in the past, so I only plan to reduce the gap further if I cant get an ignition to handle it fully at this gap.
Anyway, suggestions are appreciated.
