I didnt say he was a member here.He was on TS just like you are. Also I was just using him as an example.
Also is this true
12-09-2003, 04:38 PM
bloodypulp vbmenu_register("postmenu_5681", true);
Yellow Belt
Join Date: Jun 2003
Location: Torrance, CA
Posts: 131
all have forged steel crank, but cast aluminium pistons and cast steel rods
aluminum uppers can be swapped between generations
cranks can be swapped too for changing stroke
1uz tuned for higher rpm operation
smaller bore/shorter stroke -> higher revving
aluminum block - lightweight, good for cars; cost not factor, for luxury cars
3uz (and later 1uz) have VVTI cams which gives high and low-end optimization. 3uz is basically a bigger 1uz
2uz tuned for low/mid rpm(suv/truck applications)
longer intake runner length than in the 1uz/3uz, good for torque
has to be really reliable and cheap so keep the revs low and iron block
iron block is heavier than aluminum block, so would not be suitable in application where handling is important(sedans/coupes)
2uz can use early 1uz camshafts, but shifts power curve to higher rpm
ported 2uz heads as good as 1uz or 3uz stock, but for easy drop-in get the 1uz non-vvti.
if you're going to port the bejeezus out of the heads, you might as well upgrade the valves, etc.
TRD race parts available for the 2uz are forged high compression pistons, billet camshafts, uprated valvetrain, titanium rods. don't bother asking your dealer for the TRD catalog, one-offs for Race teams only. (Toyota off-road racing uses the 2uz lower block with 1uz upper for a 5.0L 600hp monster.)
but if you have the resources, it's not hard getting custom internals made to order
"drop-in" 2uz Natural Aspirated upgrades for around $3000US:
headers
piggyback ecu
1uz heads/intake manifolds
1uz camshafts
crankshaft pulley
345+ hp/400+ lb-f
