Home / Toyota Supra Forums

Go Back   Toyota Supra Forums! Join the Supra forum! > Performance, Modification, and Maintenance Forums - for generation specific discussions > MKIII Supra

Reply
 
Thread Tools Display Modes
Old 02-11-2013, 04:23 AM   #1
abhattan
3" Exhaust
 
abhattan's Avatar
 
Join Date: Oct 2006
Location: Brentwood, New York
Posts: 162
abhattan is on a distinguished road
Default 1JZ non VVTi vs VVTi

Hey guys, I checked around and couldn't really find anything on this. Besides the VVTi, are there any other major differences between the 2 1JZ type engines? I saw a few pics and it kind of looks like the VVTi is a single turbo as opposed to the twin turbo non VVTi. Are there any benefits/disadvantages of either engine? Any help would be very helpful and much appreciated. Thanks.
__________________
'91 Turbo Targa 5 Spd.
'87 Corolla GT-S 5 Spd
'91 Accord Daily Driver 5 Spd
Soon to be rebuilt (All to some extent)
abhattan is offline   Reply With Quote
Old 02-11-2013, 03:52 PM   #2
pandrade
12psi boost
 
Join Date: Mar 2011
Location: fort myers florida
Posts: 345
pandrade is on a distinguished road
Default

i dont know much about the 2 and 1j but i know that on the 2j most people like the vvti becuase its easier to tune. i would imagine that both are the same except for some electronics diffrences possibly a diffrent head's thats all i can imagine and possibly less waight since 1 turbo is lighter than 2, maby the mk4 guys would know more
__________________
1987 7m-gte R-154, SS braided clutch line, full 3in exshaust,aluminum radiator,full throttle gen 2 whith GM 3 inch mass air flow,13lbs flywheel, and more to come
pandrade is offline   Reply With Quote
Old 02-11-2013, 04:17 PM   #3
abhattan
3" Exhaust
 
abhattan's Avatar
 
Join Date: Oct 2006
Location: Brentwood, New York
Posts: 162
abhattan is on a distinguished road
Default

Thanks man. I was able to read up on some recommended threads after I posted this. I found out that the VVTi also has a partial Drive By Wire (DBW). I would imagine that there is some more wiring for that. Also, you get torque a lot sooner (2400rpm 3400 or something like that). The VVTi are a little cheaper also, since no one wants to deal with the added headaches. One other thing (but I'm sure there is more), the exhaust manifold has a different bit pattern and port pattern. Makes it hard to get an aftermarket manifold that fits.
__________________
'91 Turbo Targa 5 Spd.
'87 Corolla GT-S 5 Spd
'91 Accord Daily Driver 5 Spd
Soon to be rebuilt (All to some extent)
abhattan is offline   Reply With Quote
Old 02-14-2013, 04:19 AM   #4
Sonyps307
Lexus & 550's
 
Join Date: May 2010
Location: Baltimore
Posts: 526
Sonyps307 is on a distinguished road
Default

The 1jz vvti has a intake cam that changes with Rpms when the nonvvti doesn't but has two turbo instead. They r both 2.5liters. I think the nonvvti uses a map sensor and the vvti still uses the afm. Same goes for the 2jz but that is a 3.0 liter and both vvti and non vvti have 2 turbos
Sonyps307 is offline   Reply With Quote
Old 02-15-2013, 01:25 AM   #5
abhattan
3" Exhaust
 
abhattan's Avatar
 
Join Date: Oct 2006
Location: Brentwood, New York
Posts: 162
abhattan is on a distinguished road
Default

I heard that it is harder to get parts for the VVTi. Are they that different that the internals and the most of the sensors are not interchangeble?
__________________
'91 Turbo Targa 5 Spd.
'87 Corolla GT-S 5 Spd
'91 Accord Daily Driver 5 Spd
Soon to be rebuilt (All to some extent)
abhattan is offline   Reply With Quote
Old 03-04-2013, 04:58 PM   #6
Stephenkelly
Stock
 
Join Date: Nov 2012
Location: United States
Posts: 5
Stephenkelly is on a distinguished road
Default

Quote:
Originally Posted by abhattan View Post
I heard that it is harder to get car parts for the VVTi. Are they that different that the internals and the most of the sensors are not interchangeble?
Yes these parts are very hard to attain. I searched them for 2 months and finally one of my friend arranged them

Last edited by Stephenkelly; 03-06-2013 at 06:07 AM.
Stephenkelly is offline   Reply With Quote
Old 03-15-2013, 12:26 AM   #7
abhattan
3" Exhaust
 
abhattan's Avatar
 
Join Date: Oct 2006
Location: Brentwood, New York
Posts: 162
abhattan is on a distinguished road
Default

I've been speaking with Lonnie Benson over at SupraStore.com and between them, Titan and someone else, everything is available for the VVti engine and not difficult to get anymore. So I am going VVTi. 3 reasons, builds torque way earlier, already single turbo, and the Valve cover looks better, lol.
__________________
'91 Turbo Targa 5 Spd.
'87 Corolla GT-S 5 Spd
'91 Accord Daily Driver 5 Spd
Soon to be rebuilt (All to some extent)
abhattan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Vvti 2jzgte? 98supraVVTI MKIV Supra 4 10-25-2012 04:09 PM
mk4 vvti head on 7mgte pandrade MKIII Supra 17 06-03-2012 08:38 PM
converting a n/a to vvti turbo blackdemon93 MKIV Supra 2 12-08-2009 02:02 PM
2JZ VVTi or 1JZ VVTi Engine swap. kane822 Non-Generation Specific Questions 0 07-24-2009 08:41 PM
1JZ-GTE vvti help Azlv MKIII Supra 1 08-08-2007 03:44 PM


All times are GMT. The time now is 02:40 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.

1986



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88