2jz-ge VVTI to 2jz-ge non vvti swap Bolt in swap?
05-07-14, 07:37 PM
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2jz-ge VVTI to 2jz-ge non vvti swap Bolt in swap?
Is a 2jz-ge VVTI to 2jz-ge non VVTI swap bolt in including wiring?
So here's my dilema.
1999 sc300 with a 2jzge VVTI motor. After searching myIS and clublexus the general consensus is that they'll hold like 400whp or 10psi
non-vvti motors can pretty much hold the same as a GTE, 700-800whp
Shooting for like 550-600whp on e85
Building the vvti motor would be overkill so I kinda wanted to know if i could do this?
So here's my dilema.
1999 sc300 with a 2jzge VVTI motor. After searching myIS and clublexus the general consensus is that they'll hold like 400whp or 10psi
non-vvti motors can pretty much hold the same as a GTE, 700-800whp
Shooting for like 550-600whp on e85
Building the vvti motor would be overkill so I kinda wanted to know if i could do this?
05-08-14, 05:45 AM
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no, it is not a direct bolt in.
youll have tons of rewiring to do
it would be in your best option just to upgrade the rods (weak link of the vvti) and boost it from there.
the vvti will actually help spool.
youll have tons of rewiring to do
it would be in your best option just to upgrade the rods (weak link of the vvti) and boost it from there.
the vvti will actually help spool.
05-08-14, 07:56 AM
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So...in summary
96-97 bottom end with vvti head and wiring, okay
92-95 non vvti swap, not okay
96-97 non vvti swap...??
Obviously all this is gonna be tuned, Torn between standalone and piggyback at the moment
I have access to a set of GTE rods and pistons. But I'd hate to tear apart the shortblock and not put built internals in, you know xD.
96-97 bottom end with vvti head and wiring, okay
92-95 non vvti swap, not okay
96-97 non vvti swap...??
Obviously all this is gonna be tuned, Torn between standalone and piggyback at the moment
I have access to a set of GTE rods and pistons. But I'd hate to tear apart the shortblock and not put built internals in, you know xD.
05-08-14, 09:12 AM
#5
you can swap in a non vvti motor but you will have to swap the harness and ecu and all that good stuff.
If you have to do emissions you would want to use odb2 stuff so that the 96-97 computer will see all the right stuff for a 96-97 2jzge, and then you might not even have that may problems with codes as it would be happy then. you may have to figure out how to wire in the body plug on the 96-97 engine harness into the 98+ body harness if the body pugs are different. generally this is just a handful of wires.
If you don't have to do emissions, you can swap any 92-97 2jz-ge in there and use whatever ecu, but you will need the non-vvti style 92-97 harness on it at least, if going standalone a 92-95 harness would be easiest. For E85 and big power you probably will be using a standalone.
with emissions stay with 96 and 97 versions of the motor if using a 96-97 2jzge odb2 ecu.
What I would do though since you are turbo is use the USDM 2jzgte ecu which are all non-vvti, use an odb2 96-97 2jzge harness, and really on that setup you can use any 92-97 2jzge motor and not have a bunch of codes with the gte ecu cause it doesn't have the extra crank sensor like the odb2 96-97 GE ecu's have, so that means you can also use 92-95 motors when using the gte ecu or a standalone, but the gte ecu will be odb2 friendly in the end. Throw a VPC or map ecu on there and its not a bad setup.
If you have to do emissions you would want to use odb2 stuff so that the 96-97 computer will see all the right stuff for a 96-97 2jzge, and then you might not even have that may problems with codes as it would be happy then. you may have to figure out how to wire in the body plug on the 96-97 engine harness into the 98+ body harness if the body pugs are different. generally this is just a handful of wires.
If you don't have to do emissions, you can swap any 92-97 2jz-ge in there and use whatever ecu, but you will need the non-vvti style 92-97 harness on it at least, if going standalone a 92-95 harness would be easiest. For E85 and big power you probably will be using a standalone.
with emissions stay with 96 and 97 versions of the motor if using a 96-97 2jzge odb2 ecu.
What I would do though since you are turbo is use the USDM 2jzgte ecu which are all non-vvti, use an odb2 96-97 2jzge harness, and really on that setup you can use any 92-97 2jzge motor and not have a bunch of codes with the gte ecu cause it doesn't have the extra crank sensor like the odb2 96-97 GE ecu's have, so that means you can also use 92-95 motors when using the gte ecu or a standalone, but the gte ecu will be odb2 friendly in the end. Throw a VPC or map ecu on there and its not a bad setup.
Last edited by Ali SC3; 05-08-14 at 09:17 AM.
05-08-14, 10:15 AM
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This Guy ^^^ LIfe saver
you can swap in a non vvti motor but you will have to swap the harness and ecu and all that good stuff.
If you have to do emissions you would want to use odb2 stuff so that the 96-97 computer will see all the right stuff for a 96-97 2jzge, and then you might not even have that may problems with codes as it would be happy then. you may have to figure out how to wire in the body plug on the 96-97 engine harness into the 98+ body harness if the body pugs are different. generally this is just a handful of wires.
If you don't have to do emissions, you can swap any 92-97 2jz-ge in there and use whatever ecu, but you will need the non-vvti style 92-97 harness on it at least, if going standalone a 92-95 harness would be easiest. For E85 and big power you probably will be using a standalone.
with emissions stay with 96 and 97 versions of the motor if using a 96-97 2jzge odb2 ecu.
What I would do though since you are turbo is use the USDM 2jzgte ecu which are all non-vvti, use an odb2 96-97 2jzge harness, and really on that setup you can use any 92-97 2jzge motor and not have a bunch of codes with the gte ecu cause it doesn't have the extra crank sensor like the odb2 96-97 GE ecu's have, so that means you can also use 92-95 motors when using the gte ecu or a standalone, but the gte ecu will be odb2 friendly in the end. Throw a VPC or map ecu on there and its not a bad setup.
If you have to do emissions you would want to use odb2 stuff so that the 96-97 computer will see all the right stuff for a 96-97 2jzge, and then you might not even have that may problems with codes as it would be happy then. you may have to figure out how to wire in the body plug on the 96-97 engine harness into the 98+ body harness if the body pugs are different. generally this is just a handful of wires.
If you don't have to do emissions, you can swap any 92-97 2jz-ge in there and use whatever ecu, but you will need the non-vvti style 92-97 harness on it at least, if going standalone a 92-95 harness would be easiest. For E85 and big power you probably will be using a standalone.
with emissions stay with 96 and 97 versions of the motor if using a 96-97 2jzge odb2 ecu.
What I would do though since you are turbo is use the USDM 2jzgte ecu which are all non-vvti, use an odb2 96-97 2jzge harness, and really on that setup you can use any 92-97 2jzge motor and not have a bunch of codes with the gte ecu cause it doesn't have the extra crank sensor like the odb2 96-97 GE ecu's have, so that means you can also use 92-95 motors when using the gte ecu or a standalone, but the gte ecu will be odb2 friendly in the end. Throw a VPC or map ecu on there and its not a bad setup.
05-08-14, 10:27 AM
#7
I forgot I think you have to run a fuel return line also. I think the vvti motors only have a feed line or something like that. not very difficult really its low pressure. The body stuff might be tricky if its not plug and play but should be doable if you have both diagrams.
also not sure about where it plugs into the fusebox is different or not on those years. basically you will need some harness work.
also not sure about where it plugs into the fusebox is different or not on those years. basically you will need some harness work.
Last edited by Ali SC3; 05-08-14 at 11:30 AM.
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05-08-14, 03:15 PM
#8
I've never wired a 98-00 sc, but have done plenty of IS stuff. Does the vvti sc use a can signal for cluster functions and integrate a/c in the mix as well through the ecu? Because if so, **** aint gonna work right with the early style trigger signals. Talk about headaches, I did an engine job/rewire/upgrade on someone's havcked together early aristo swapped IS, and it really really didnt like the difference in triggers. A/C wouldn't function as stock, and a portion of the cluster wouldn't work without the stock ecu, which was not present.
edit: if it is in fact similar to the IS, I full on suggest running a standalone in parallel with the stock ecu. Also, I love vvti, and the cam sensors in the head is a way better design than an old bull**** distributor. I wouldn't change that.
edit: if it is in fact similar to the IS, I full on suggest running a standalone in parallel with the stock ecu. Also, I love vvti, and the cam sensors in the head is a way better design than an old bull**** distributor. I wouldn't change that.
05-09-14, 08:52 AM
#9
that is true you could just change the bottom end out and then throw on a fully capable piggyback or 2nd standalone and run your vvti top end. it would be a nice combo and not have to worry about the wiring except for wiring in the fuel computer but those are all pretty easy to do compared to making the older harness work with the newer body. it could be less of a headache your new harness is already wired for coils etc...
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