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The following message was cross-posted on the .Org tech page, but I doubt many of the people who are following the launch of the SRT-4 pay much attention to that forum.
As I understand, most 2.4 swaps use a dohc 2.0 head and manifolds. Does anyone have any idea yet (I know it's a little early to be asking) if the 2.4 head that will be used on the SRT-4 is different?
The reason I ask is oiling system related. The 2.0 head tends to gather and hold oil when it is turbocharged and used with a lot of lateral g-force, like on a National level autox course or a road course with a long carousel type turn. The oil gathers outboard of the oil return galleys and eventully pumps out of the breather on the back of the valve cover. More than a couple turbo 2.0 engines have lost rod bearings this way.
I have a hard time believing that D-C would release a car with a powertrain warranty that would be used after every skidpad session with R tires, but I've seen no mention of a block and head configuration unique from the existing 2.4 hardware.
The only roadcourse testing I've read about is on the "Streets of Willow" by Grassroots Motorsports. Willow Springs is a low speed track with a lot of transients, but nothing like the outer loop at Watkins Glen or any of the NASCAR turns (usually entered from a low speed off the infield) at the super-speedways like MIS, PPIR, or TWS.
Your thoughts are greatly appreciated,
Dale
As I understand, most 2.4 swaps use a dohc 2.0 head and manifolds. Does anyone have any idea yet (I know it's a little early to be asking) if the 2.4 head that will be used on the SRT-4 is different?
The reason I ask is oiling system related. The 2.0 head tends to gather and hold oil when it is turbocharged and used with a lot of lateral g-force, like on a National level autox course or a road course with a long carousel type turn. The oil gathers outboard of the oil return galleys and eventully pumps out of the breather on the back of the valve cover. More than a couple turbo 2.0 engines have lost rod bearings this way.
I have a hard time believing that D-C would release a car with a powertrain warranty that would be used after every skidpad session with R tires, but I've seen no mention of a block and head configuration unique from the existing 2.4 hardware.
The only roadcourse testing I've read about is on the "Streets of Willow" by Grassroots Motorsports. Willow Springs is a low speed track with a lot of transients, but nothing like the outer loop at Watkins Glen or any of the NASCAR turns (usually entered from a low speed off the infield) at the super-speedways like MIS, PPIR, or TWS.
Your thoughts are greatly appreciated,
Dale