[wparsons]

Originally Posted by drifter93

Guys, i know that's a really old thread, but i feel like it's a good thing to correct the myth/hype about the "2JZ is iron block, it's heavy compared to an aluminium block, so why would i ruin my balance?"

Google is your friend:

The 2JZ weighs around 500lb while the FA20 weighs 379 lb. Each motor was weighed with intake/exhaust manifolds, turbos, dumps, and all accessories except AC.

If you search at supra forums, the 2jz longblock itshelf weighs somewhere around 430lbs, and that's without the intercooler, radiator, two turbos, intake and exhaust manifold, but with the alternator and a lightweight flywheel and clutch.

Actually we are talking for a 50 pound weight difference. Of course you won't be keeping the twin turbo setup, and convert it to a single turbo. A single turbo plus a cast single turbo manifold, and the stock intake manifold already shaves you some pounds and weigh about 50 pounds. Those who are supercharging their fa20 are already adding 30lbs + of additional weight.

About the tranny. Why go with the rare and expensive v160, when there is the tremec t56 magnum? It only gives you 20lbs of more weight compared to the stock tranny and it doesn't make a difference where the weight is added. Also don't forget that those 20lbs could be easily shaved from lightweight rotors, lightweight rims, coilovers and from exhaust.

So in conclusion: 2jz turbo vs fa20 supercharged: 50+50-30= 70lbs of weight difference.

With some nice coilovers (ohlins, kw v3) you can full scale and corner balance your little rocket and that's what makes a real difference. You may as well focus to your left - right, cross weight balance, instead of the front - rear. Front - rear is for marketing purposes. Left to right and cross is what makes the huge impact to the handling.

That's just my opinion and you are welcome to correct me if i'm somewhere wrong.

2JZ with V160 is 594lbs fully dressed, FA20 with stock gearbox is 480lbs fully dressed. That's 114lbs.


Plus, with the length of the 2JZ a large portion of the weight is way out in front (the worst place for it to be).


A local shop has a 2JZ swapped formula drift car, next time I'm talking to any of them I'll ask about the weight distribution. They also run a rear rad and lots of other changes so it's not apples to apples, but it'll be real numbers.