ls1 swap for s13

[HiPSI]

Beat the **** out of your drive shaft tunnel because its gonna be alot bigger. How is your rear end? Why not throw an solid axle under there while your at it to make it wont blow?
You can get a cheap 10 Bolt chevy or ford 8.8 for nothing and it will hold the power you need it to.
I dont really see the little IRS diff holding up to 400 hp and off the line torque.

doesn't take that much hammer work.

and why throw a solid axle under a car with a perfectly good independent rear with nearly bulletproof rear end? the R200 diff is similarly beefy as a ford 9" internally. they've repeatedly held up well above 400ft-lbs of torque on sticky tires at dragstrips. at worst you'll break axle shafts for a u-joint, but a nice beefy set of aftermarket axles is much cheaper than retrofitting a solid axle into the car.

[HiPSI]

so turbo the lsx

if you've got that kind of money you might as well buy a vette. ever priced out a forged rotating assembly for an LS1? the stock stuff will only hold up so long, then you have to have deep pockets.

[HiPSI]

Ok, no matter what...LS > SR ANY ****ING DAY

no matter what? Dan from Batlground's drift car is one wicked sumbitch and will eat my LS1 for lunch. if you properly engineer your setup on the SR, it'll not only be reliable but it'll make a hell of a lot of power. to my knowledge they're still running the same old engines they have been with stock internals too.

neither is better than the other, just depends on your preference and driving style.