4.6 3 Valve Build

[marcus89]

so what is the best option. don't want to go forced induction as i want to keep balance of the car. autocross and track car. already has magnum xl and 3.73 axle. thanks!
look for builder or recommendations with some idea on HP/torque numbers

 

[blacksheep-1]

Forced induction really has nothing to do with any " balance". The only downside to a blower is the heat buildup, a turbo can get around that. The long term permanent fix is an engine swap but those and the electronics can be prohibitively expensive unless you have a donor car. The 3 valves do fine with the usual simple mods.
The 2020 SCCA national champ was a bone stock 3 valve

 

[marcus89]

Forced induction really has nothing to do with any " balance". The only downside to a blower is the heat buildup, a turbo can get around that. The long term permanent fix is an engine swap but those and the lectronics can be prohibitively expensive unless you have a donor car. The 3 valves do fine with the usual simple mods.
The 2020 SCCA national champ was a bone stock 3 valve

View attachment 79004

balance was a reference to the weight addition of a power adder. hoping to avoid that extra weight.

 

[blacksheep-1]

balance was a reference to the weight addition of a power adder. hoping to avoid that extra weight.

Percentage wise, not enough to worry about.. maybe 5% tops

 

[8bitmime]

Have you done anything to the engine so far? I know some people who have had great experiences with Livernois and they are in your neck of the woods.