Dual VVTi 2JZ
http://ttcperformance.com/shop/index...emart&Itemid=3
I found these cams for the 1UZ-FE engine, I have no idea if this site would help you with anything being that you have a 2JZ, but check it out
-Joe
I found these cams for the 1UZ-FE engine, I have no idea if this site would help you with anything being that you have a 2JZ, but check it out
-Joe
Lead Lap
Joined: Sep 2003
Posts: 663
Likes: 3
From: Florida
Hm...I'm really thinking about making one lol. I have a few extra 2JZ's sitting around, and soon I'm gonna be picking up a spare 2JZ-GTE VVTi engine. I'm thinking that it might be possible to modify the head and journals to convert the engine to have VVTi on both intake and exhaust side. Obviously this will require sacrificing one head by cutting it up to cannibalize the VVTi mechanism. Once I cut it out, I can weld it onto the other head and use the CNC machine to get everything down to spec afterwards.
As for tuning it, I have the AEM EMS which has plenty of extra output channels to control the extra VVTi solenoid.
Some of you guys might wonder why I'm going thru all this trouble. Well, if I go through with it...I'll be the only person in the world to have a Dual VVTi 2JZ engine
Obviously I'll be experimenting with all this, but my hope is to significantly boost low end torque and speed up the spool.
Plus I have a few extra engine heads sitting around so why not give it a shot...heh.
What do you guys think?
As for tuning it, I have the AEM EMS which has plenty of extra output channels to control the extra VVTi solenoid.
Some of you guys might wonder why I'm going thru all this trouble. Well, if I go through with it...I'll be the only person in the world to have a Dual VVTi 2JZ engine
Obviously I'll be experimenting with all this, but my hope is to significantly boost low end torque and speed up the spool.
Plus I have a few extra engine heads sitting around so why not give it a shot...heh.
What do you guys think?
Lexus Champion
Joined: May 2008
Posts: 3,347
Likes: 6
From: RI
Hm...I'm really thinking about making one lol. I have a few extra 2JZ's sitting around, and soon I'm gonna be picking up a spare 2JZ-GTE VVTi engine. I'm thinking that it might be possible to modify the head and journals to convert the engine to have VVTi on both intake and exhaust side. Obviously this will require sacrificing one head by cutting it up to cannibalize the VVTi mechanism. Once I cut it out, I can weld it onto the other head and use the CNC machine to get everything down to spec afterwards.
As for tuning it, I have the AEM EMS which has plenty of extra output channels to control the extra VVTi solenoid.
Some of you guys might wonder why I'm going thru all this trouble. Well, if I go through with it...I'll be the only person in the world to have a Dual VVTi 2JZ engine
Obviously I'll be experimenting with all this, but my hope is to significantly boost low end torque and speed up the spool.
Plus I have a few extra engine heads sitting around so why not give it a shot...heh.
What do you guys think?
As for tuning it, I have the AEM EMS which has plenty of extra output channels to control the extra VVTi solenoid.
Some of you guys might wonder why I'm going thru all this trouble. Well, if I go through with it...I'll be the only person in the world to have a Dual VVTi 2JZ engine
Obviously I'll be experimenting with all this, but my hope is to significantly boost low end torque and speed up the spool.
Plus I have a few extra engine heads sitting around so why not give it a shot...heh.
What do you guys think?
Here's the real question. Why do you want it? Is it really worth the trouble? I'm assuming you know how vvt-i works, so what is your reasoning for having dual vvt-i, and what would be the advantages of it?
Lead Lap
Joined: Sep 2003
Posts: 663
Likes: 3
From: Florida
The quickest 2JZ's are all non vvti motors, thats all Titan runs in their cars as do all the other top shops, this is why I machined my intake cam down to eliminate the VVTI, when I'm boosting 30+PSI I sure don't need that intake timing changing on me, this is why guys like Darin who is currently running 8.5 @ 160 in his daily driven 6 speed Supra chooses to run non adjustable intake cam gears, he just tunes it with the fixed stockers as the adjustables can move.
The quickest 2JZ's are all non vvti motors, thats all Titan runs in their cars as do all the other top shops, this is why I machined my intake cam down to eliminate the VVTI, when I'm boosting 30+PSI I sure don't need that intake timing changing on me, this is why guys like Darin who is currently running 8.5 @ 160 in his daily driven 6 speed Supra chooses to run non adjustable intake cam gears, he just tunes it with the fixed stockers as the adjustables can move.
I understand everyone runs non-vvti motors as thats whats available here and of course whats best known, but that doesn't mean that the Vvti setup would be any slower. With proper tuning it should make substantially more power, especially on street cars.
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it is sweet to be the only guy to have a rare motor
too bad drive by valves aren't available yet
Instructor
Joined: Oct 2007
Posts: 1,147
Likes: 2
From: Minnesota
The quickest 2JZ's are all non vvti motors, thats all Titan runs in their cars as do all the other top shops, this is why I machined my intake cam down to eliminate the VVTI, when I'm boosting 30+PSI I sure don't need that intake timing changing on me, this is why guys like Darin who is currently running 8.5 @ 160 in his daily driven 6 speed Supra chooses to run non adjustable intake cam gears, he just tunes it with the fixed stockers as the adjustables can move.
Lead Lap
Joined: Sep 2003
Posts: 663
Likes: 3
From: Florida
I understand but what if you're running even 20psi and that intake cam gear fails or just advances too much? I wouldn't want to take the risk of that adjustable cam gear moving on me, it wasn't designed to adjust under increased HP.. Same reason why guys like Darin run stock cam gears over adjustable ones, it's not worth the risk of taking a chance and having that thing move under boost.
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