Jan 17, 2006 · A stock 2JZ flows about 238in and 154ex at .400 lift. A stock 1JZ head flows 215in and 133ex at .400 lift. After I did a good street port job including reworking the chamber the 1JZ head flowed 230in and 152ex at .400. This should put to rest the idea that the 1JZ head is better than the 2JZ, because the fact of the matter is that it is not better.

Aug 4, 2007 · The 1JZ-GTE VVTi exhaust manifold is entirely different then it's other 1JZ counterparts. #1 & #2 ports/runners are together, as with #5 & #6 ports/runners. I found this bit of disheartening information when I was searching for a stainless manifold for my JZX100 1JZ (VVTi). Basically, nobody in the US sells or produces this manifold. Hell, even ...

Mar 4, 2006 · You have to look at its domestic market. at the time, the 1jZ was not supposed to be superior to the 7m, just different. the ma70 chassis in 91 came with 5 different engines vs the 2 we got. 7mge, 7mgte, 7mgte (turbo a), 1jzgte, and the 1ggte. so toyota decided to cut the choices down for the new mkiv. they melded the 7m's displacement and ...

May 8, 2008 · The cams can also work with a little bit of machining and the the injectors drop in (MKIV 550s need a resistor pack wired in). A lot of the electronics switch over (coil packs, ignitor), and you can run a 2jz with a 1jz harness + ecu (as well as a 1jz with a 2jz harness + ecu)

Apr 11, 2001 · Besides, the 2JZ head has a more aggresive cam compared to the 1JZ let alone the JDM 2JZ but not by much. I say even if there was a doubt you could polish and port a head to make sure it flows right, and it would be a good upgrade for 1JZ guys. Then we can use 2JZ stock twins. People in Australia have been doing 2JZ heads on 1JZ for years.

Jan 29, 2012 · One more thing too - I've been checking into the stroke/rod length ratio, and found the the 1jz also has better numbers in this dept too. The 1JZ has a 125mm rod and a 71.5mm stoke, giving a ratio of 1.75:1, but the 2JZ has a 142 mm rod …

Jul 25, 2003 · same turbo mated to 1.5jzgte with 2jz cams vs same turbo mated to 2jzgte measure both at the same boost and show the hp dyno charts if everything is the same except only the heads then compair the figures.

May 18, 2007 · Ok the 2jz is 27CM and the 1jz is 24CM. So add a 3MM gasket and you should be good to use a 1jz block with 2jz rods to get 1.5 jz. ;) just figured I'd share since i have it all infront of me.. Unless the cranks are diff i see no problems. (didn't measure the crank throw.

Dec 6, 2012 · Anyone have dyno charts of a 1JZ VVTi or 2JZ VVTi that still have their stock turbo systems? Only care about VVT-i here, the torque curve of the non-VVTi motors are completely different and irrelevant to me. If anyone has a dyno chart comparing the VVTi to a non-VVTi that would be nice too, I'm wondering how much the low end torque gain is...

Jun 26, 2013 · Since a setup that would bolt onto a fully stock 1JZ-GTE takes into consideration the block is a 1JZ-GTE block, you cannot assume that it would fit on a 2JZ-GTE block. The reason for this is because the 2JZ-GTE block is an 1/2" taller, so that means the 1JZ-GTE head will sit a 1/2" higher, meaning the turbo setup will sit 1/2" higher as well.