rb20s in s13s are gay

[rb240det]

Stock s13 suspension info:




Base case specifications :

OE front spring rate : 112lbs/in

OE rear spring rate : 112lbs/in

Car weight : 2850lbs

Weight distribution : 53/47% (f/r)

Unsprung weight : ~75lbs/corner

Front sprung weight : 700lbs/corner

Rear sprung weight : 600lbs/corner

Wheel base : 2m




53/47 is damn near perfect for RWD since the transfer under accel makes it 50/50. And thats stock. With a KA. RB weighs more so it gets worse.

I'm trying to find that thread on NICO where a guy weighed his swapped S13 (RB20). I do not remember whether he used mounts or just the R32 crossmember, but the weight distribution was 48/52. Good enough for me...

[1439/2000]

Yeah the weight distribution isn't the problem, the problem is people swapping them, putting a bigger turbo on and putting down 250 whp. Thats lame.

[rb240det]

Yeah the weight distribution isn't the problem, the problem is people swapping them, putting a bigger turbo on and putting down 250 whp. Thats lame.

Apparently you did not read my previous posts. I had a couple boost leaks that I found later that day after pressurizing my IC piping. So with a MAF measuring XX amount of air entering, then dumping the amount of fuel needed to compensate, only to leak that air farther down the system = crappy dyno results.

Not to mention having to use an SAFC to tune with. 30% correction across the board isn't the greatest way to tune, but that has been corrected as well...

"Lame"...I can't help the fact I had a few issues with my car. Those have been corrected, so please don't judge me.