Hey all, yep...I'm a Toyota 1JZ newbee. My question is, what is the disadvantage in chooseing the VVT-i 1JZ over the reg. non VVT-i.

I plan on buying a front cut to swap into my Datsun 260 z car, and I seen a pretty good price on a fairly new engine set.
I was planing on doing the RB26dett swap, but in case your not familiar with this beast of a motor, it cost way to much, so I need to know the ups and downs of the JZ series motors...

thankz
joel

The 1JZ is easily a good a motor as the RB26DETT... thought of as the closest rival in japan in terms of design and capability. Youre not downgrading by using the 1JZ insted of the RB26.

Not much difference between the vvti and non-vvti. both are just as good. vvti single turbo, non-vvti twin turbo. Both have similar power yet vvti has masses more torque as standard mucu lower down the rev range.
vvti harder to mod due to less bolt on parts and vvti aspect.

i would go with the none-vvt-i , the cams will rev better. and they r better if u want more hp

vvti is a difficult swap. LOTS more wires.
like ADI said, the aftermarket support is weak. the NON vvti is older BUT has WAY more parts from aftermarket.

Thank You guys... I'll stick with the non vvt. Crap.... I might as well look for me a 2JZ

Now your talking. I have a video of a 260z with a turbo LS1 vette motor. Bad Ass. It breaks loose at 50mph in 2nd then spins the shit out of 3rd.

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Originally posted by supratrboX2:
Now your talking. I have a video of a 260z with a turbo LS1 vette motor. Bad Ass. It breaks loose at 50mph in 2nd then spins the shit out of 3rd.

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Man... I'd love to see that video... hint, hint.....

i have broke loose @60 . didnt last too long though.

Newer 1JZs from Soarers have an Apexi Power FC available.. so that's somewhat of an advantage. Lack of aftermarket parts is not as relevant as you may think. Some things are "general", like exhaust, intake and boost controller.
Here's probably some of the best things you could do for some power from the VVTi model:
1. Apexi or other good air filter.
2. Custom 3 - 3 1/2" inner diameter downpipe [custom because the dowpipes meant for the TT non-VVT 1JZ may not be in the same location, and if so probably won't mount to the elbow from the VVT model's turbocharger].
3. 3 - 3 1/2" inner diameter test pipe or cat.
4. 3 - 3 1/2" inner diameter cat-back exhaust.
5. Electronic boost controller.
6. Intercooler and piping.
7. Larger injectors. Note that the VVT 1JZ uses different injectors than the non VVT 1JZ. On the Takakaira site, Power Enterprises explains the difference. When choosing injectors for the VVT model, you will choose the ones that specify "After MC" [Minor Change, meaning the switch to different feed injectors, VVT, single..]
8. Apexi PowerFC or another stand-alone engine management system. The PowerFC is an ECU replacement that can be used with "Commander" that is a handheld programmer.. you don't need a laptop to program your car.
9. Custom turbo manifold, with flange suited for the type of turbo you plan on using.
10. Your new turbocharger.

Of course there are other things to consider, like gauges, turbo timer, etc., but those are things that can be hooked up to any turbo car if you know what the hell is going on. Basically, if you can do a 1JZ swap, you can hook those things up. Really.
If you use a PowerFC, be careful how you tune and ALWAYS use the best gasoline/octane available. PowerFC is used to being in tuned Japanese cars, which most often are run with higher octane gas than is used commonly in the USA.

you never were able to use the power fc with an autobox.. not sure if this is still the case.

Well thanks for the info guyz that should help me make up my mind....

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Originally posted by adi:
you never were able to use the power fc with an autobox.. not sure if this is still the case.

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It may have changed. I looked on the APEXi Japan page and found the PowerFC "catalog" and "data" pages.
There are TWO 1JZ applications with different part/code numbers that I found for the JZX100, and both are for the 96.9-01.7 JZX100 [Mark II?]. I can't read the Japanese in the comment column, but one of them does read "AT" in the remarks, so one is probably for manual and the other for AT.
The chart can be found here: PowerFC Catalog
Here is a different catalog, which is formatted a little better:
PowerFC Catalog II
Cool stuff, eh?

WOULD A VVTI exhaust maifold fit a non vvti head???? hmmm. cheap way to convert to single. cheap way to get to that damn BPU.

help me out here.... what the heck does BPU mean....

HAHAHA You're Idea is similar to mine. I'm putting a 2jz into a 240z when I have all the cash ready.

BTW, BPU means basic performance upgrade. Here's some more information on it.

http://www.suprastore.com/bpuwhatdoesi.html

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Originally posted by 1JZGTE 260z:

help me out here.... what the heck does BPU mean....

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Basic Performance Upgrade. Read the FAQs.

Originally thought up by the Supra crowd, I think it was actually Mark Tozer who did, then the name stuck for all performance enthusiasts.

ECHO.....echo.....ec....o

lol my bad

just playin.