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Originally Posted by OKcruising  It'll be a killer street/drag setup for certain.
Road racing, not so much. You might want to revisit your front diff choices as the GM front diffs are far from performance oriented in that realm. Further, with a 4L80 and transfercase and turbo, your gonna be putting on a bit of poundage and theres going to be some heat concerns with the tight fits.
What about a modified oilpan with a driveshaft through pan and set the engine far back into more of a front-mid-engine setup?
There might be some options with retrofitting a porsche front axle out of a C4S, it's been a while since I've seen one; but I *think* they are rather small.
It's very challenging to have a front and low V# longitudinally mounted for 4wd use. I always imagined it as being a front mid-engine with the the trans output being a little behind the center line. Transfer case with small diameter driveshaft then running hugged next to the block on the passenger side. Granted, AC might go bye bye. Basically very similar to the new gtr, but it's still a bit too high mounted. |
I'm not sure what makes a front diff performance orientated. an lsd? yeah that would help. awd cars that don't turn well generally have a suspension tuning problem. Or have front biased torque split. I have 62 rear 38 front. for the most part it will act and drive like a rear drive car, with more traction for acceleration.
all the pass through axle systems I have seen do not get the axle any higher than I have it now.
My engine is no higher in the engine bay than the other 240 to lsx swappers.
my engine is further back than most 240 to lsx swappers.
Most of the added weight is in the middle of the car and low down.
the 4l80 will have a 5 clutch torque converter that will be locked 2-4th gears for road racing. this will keep the converter from super heating the fluid which will have a large dedicated and ducted cooler and a fan if needed.
the car will run a small diameter drive shaft. tucked next to the block but on the drivers side.
c4s would be too hard to make work. its not the configuration i need.
I was originally going to use bmw 330ix stuff but its too week. this diff is larger than most car front diffs but smaller than most truck stuff. so it will hold up to any thing I throw at it. It also came in many ratios and is cheap.
and again Im starting at about 2650lbs. even with awd it will weigh less than any thing that came from the factory with an lsx.