[CW3SF]

Originally Posted by KingLT1

Increasing boost with a stock supercharger on 93 is counter intuitive. Yes it will make more power on a cold pull, then the ECU will be pulling timing via IAT spark table which negates the power from the boost increase.

Flex sensor - E40-60
Headers
Rotofab

There is your 100hp in 3 mods.

Order the E by the drum if need be and mix it to at least E40... you will get good consistent gains pull after pull. What all these shops and youtube channels don't tell you is that these cars cannot sustain full timing stock once up to temp on 93, let alone when you start increasing boost. The Manifold Air Temps hover around 135-140 and that is where the ECU needs to pull timing advance to keep KR at bay. Adding pulleys will have the MAT pushing 160-170 and pulling substantial amounts of timing. With Ethanol that IAT spark table can be raised another 30 degrees easily and now the engine can make pull after pull with full timing.

I wouldn't get get caught up in comparing cold pull dyno numbers. Unfortunately, there are a lot of stock blower 93 cars with pulleys and bolt-ons making 680-700whp on a cold pull, then they are down 50-70whp from that number majority of the time during real world use.

^^^This man knows.