Quote:
Originally Posted by Megahurtz
King is absolutely right. Boosted LT1's live on pump gas when the boost pressure is lower than 9psi and a bunch of timing is pulled to be safe. The number one danger on a boosted LT1 is detonation. It will break the weak LT1 pistons real fast. Second is the heat the top rings are exposed to. Too hot and you break a ring quickly. To mitigate this, boosted stock piston LT1's are usually run rich and low on timing. They make good torque but lay over up top. Pushing past this on pump gas, and your risks greatly increase.
As the blower heats up, the ECU pulls more timing, keeping things safe but also lowering the power. So a dyno pull might show 570 rwhp, but then on the street the car gets slower when things are heat soaked or the blower is hot. You can mitigate this with meth or flex fuel and make more consistent power. But on pump gas, you're stuck with this timing logic.
You can push an LT1 harder if you're spraying meth or using Flex Fuel extract more heat from the combustion chamber, reducing detonation chances and keeping the rings cooler. What King has been saying is not "1 car example". It's be proven time and time again on the LT platform.
|
Thanks again for the heads-up and guidance. I salute you and Joe for the knowledge and caring for me so well. My issue with E is having limited storage place + having to transport 5 Gallons E Jerrycans ~30% E (to get to E40 on a full tank - E10 is already included in the 93 at the pump) to the gas station every time I fill up - is out of the question. Best I could do, is add maybe another 10% E ~ 2 Gallons, just to be a little safer - It would become E20 overall. What is your take on this?