1992 C4 Corvette Build (LS2 Stroker / 4L60e / Terminator X)
07-14-2022, 07:53 AM
#121
I hadn't seen this when posted.... but, hmm, not really. I have seen plenty of people get away with compression around 12:1 with 93 octane, which is what we have here in MI. I do try to overly research things before I build, so I had checked into it quote a bit. I also knew that I had the option of moving to E85 if it wasn't manageable.
One thing to consider, is the camshaft. This is where you have some control, as you can alter the dynamic compression. My cam is almost a bit small for a stroker, compared to many, but was selected to put the DCR where I wanted for a pump gas build. I forget the number, but Its in the range of 8.5-8.7 DCR. Again, I had checked into many sources and made sure the number was in a reasonably safe area.
Lastly, I have brought this tune along slowly. I run it richer and with less timing than I do in my cammed LQ4 that I have been tuning for the last 5 years. I am considering to take it to a dyno for dialing in the timing, as that is a bit hard with street tuning. .
One thing to consider, is the camshaft. This is where you have some control, as you can alter the dynamic compression. My cam is almost a bit small for a stroker, compared to many, but was selected to put the DCR where I wanted for a pump gas build. I forget the number, but Its in the range of 8.5-8.7 DCR. Again, I had checked into many sources and made sure the number was in a reasonably safe area.
Lastly, I have brought this tune along slowly. I run it richer and with less timing than I do in my cammed LQ4 that I have been tuning for the last 5 years. I am considering to take it to a dyno for dialing in the timing, as that is a bit hard with street tuning. .
