Can a 4.6l be spun to 7500 (no more than 7800) "reliably" for short periods of time? Likely only be at those revs for no more than 10 seconds. Can the hydraulic power steering take it? A/C is deleted.
This is for a dedicated autocross only car (2900lb SCCA CP car). I have lots of decent power under the curve with tune, header, LW flywheel, LW damper, and Detroit Rocker cams (361T/337H). I have it spinning to to 6800. Bottom end is stock. Trans is stock with a LW clutch) I need rpms to get to 76-80mph more than I need power.
I get lots of good pedal control by having the 4.6 in the car. But I want reliability and hopefully no great loss in power to go higher in revs. I have no plans to do a power adder. Too much weight and complexity. I'm confident I can get there with cam, heads, rods, bore, and maybe an EPAS. But at that point things are getting expensive enough that a stock Gen2 drop in might be a better long term choice(especially if I sell my 4.6).
Can I get "safely"the rpms I want with just head work and cams (assume the power will still be under 400)?
Key points: Autocross only car. Weight is important. Good control of throttle important. Broad usable power under the curve more important than peaks. I'm lazy/old and don't want to fix stuff at the track
Thanks
This is for a dedicated autocross only car (2900lb SCCA CP car). I have lots of decent power under the curve with tune, header, LW flywheel, LW damper, and Detroit Rocker cams (361T/337H). I have it spinning to to 6800. Bottom end is stock. Trans is stock with a LW clutch) I need rpms to get to 76-80mph more than I need power.
I get lots of good pedal control by having the 4.6 in the car. But I want reliability and hopefully no great loss in power to go higher in revs. I have no plans to do a power adder. Too much weight and complexity. I'm confident I can get there with cam, heads, rods, bore, and maybe an EPAS. But at that point things are getting expensive enough that a stock Gen2 drop in might be a better long term choice(especially if I sell my 4.6).
Can I get "safely"the rpms I want with just head work and cams (assume the power will still be under 400)?
Key points: Autocross only car. Weight is important. Good control of throttle important. Broad usable power under the curve more important than peaks. I'm lazy/old and don't want to fix stuff at the track
Thanks