2jz twins on 1jzgte
02-06-12, 08:50 AM
#1
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2jz twins on 1jzgte
Hey guys
Ive tried searching with no luck. Im trying to see if anyone has put 2jz twin onto their 1jzgte. I know it is possible. and Im pretty sure I know how to. Just seeing if anyone has pics or details about the modifications that need to be done.
From what I gathered, you have to modify the 1jz manifold to accept the 2jz twins.
you run the 2jz cold charge piping and inlets.
What Im confused about is a guy that did this on Supramania said he had to make a spacer for the 2jz y-pipe section. Not quite sure what he ment? a space between the turbo to downpipe?
I have like 8 Ct12a and 4 Ct20s laying around, Just dont have a motor to mock up to do the testing myself.
If anyone has info or pictures to clear this up please let me know.
P.S I dont need to hear the whole "go single" rant. I am a proud owner of a big singled 1jz.. This is for a friend.
Ive tried searching with no luck. Im trying to see if anyone has put 2jz twin onto their 1jzgte. I know it is possible. and Im pretty sure I know how to. Just seeing if anyone has pics or details about the modifications that need to be done.
From what I gathered, you have to modify the 1jz manifold to accept the 2jz twins.
you run the 2jz cold charge piping and inlets.
What Im confused about is a guy that did this on Supramania said he had to make a spacer for the 2jz y-pipe section. Not quite sure what he ment? a space between the turbo to downpipe?
I have like 8 Ct12a and 4 Ct20s laying around, Just dont have a motor to mock up to do the testing myself.
If anyone has info or pictures to clear this up please let me know.
P.S I dont need to hear the whole "go single" rant. I am a proud owner of a big singled 1jz.. This is for a friend.
02-06-12, 08:59 AM
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For clarification this is what ill be doing to a customers car:
Take a pair of JDM CT20 2jzgte twins,
#1:Replace the ceramic turbine blade with a higher flowing steel/inconel turbine
#2: Machining the Compressor housing to fit a GT2860 disco potato compressor wheel
#3: Machine open the wasgate ports to a 34mm
#4 Machine a sleeve for the rear turbo, and convert it to internally gated control
#5: Get rid of all the B/S sequential in the exhaust and charge piping
#6: Run in full true parallel
Just nee a custom Downpipe and spacer/modify what ever need to be modified.
similar to this:
Take a pair of JDM CT20 2jzgte twins,
#1:Replace the ceramic turbine blade with a higher flowing steel/inconel turbine
#2: Machining the Compressor housing to fit a GT2860 disco potato compressor wheel
#3: Machine open the wasgate ports to a 34mm
#4 Machine a sleeve for the rear turbo, and convert it to internally gated control
#5: Get rid of all the B/S sequential in the exhaust and charge piping
#6: Run in full true parallel
Just nee a custom Downpipe and spacer/modify what ever need to be modified.
similar to this:
Last edited by AlbertTRD; 02-06-12 at 09:02 AM.
02-06-12, 03:25 PM
#3
I looked into the setup a while back and found this on Supraforums:
http://www.supraforums.com/forum/sho...lled-onto-a-1j
If you look a few pics down, the spacer is between the exhaust housing and the y-pipe. The only reason why this setup in the thread failed is he used the front and rear turbo on his car but the rear turbo is NOT wastegated so it kept trying to make boost. That combined with the wimpy ceramic fins led to a short stint of fun. Two front turbos (which are wastegated) will work best.
http://www.supraforums.com/forum/sho...lled-onto-a-1j
If you look a few pics down, the spacer is between the exhaust housing and the y-pipe. The only reason why this setup in the thread failed is he used the front and rear turbo on his car but the rear turbo is NOT wastegated so it kept trying to make boost. That combined with the wimpy ceramic fins led to a short stint of fun. Two front turbos (which are wastegated) will work best.
02-10-12, 08:28 AM
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I looked into the setup a while back and found this on Supraforums:
http://www.supraforums.com/forum/sho...lled-onto-a-1j
If you look a few pics down, the spacer is between the exhaust housing and the y-pipe. The only reason why this setup in the thread failed is he used the front and rear turbo on his car but the rear turbo is NOT wastegated so it kept trying to make boost. That combined with the wimpy ceramic fins led to a short stint of fun. Two front turbos (which are wastegated) will work best.
http://www.supraforums.com/forum/sho...lled-onto-a-1j
If you look a few pics down, the spacer is between the exhaust housing and the y-pipe. The only reason why this setup in the thread failed is he used the front and rear turbo on his car but the rear turbo is NOT wastegated so it kept trying to make boost. That combined with the wimpy ceramic fins led to a short stint of fun. Two front turbos (which are wastegated) will work best.
These will be heavily moddified twins. The rear turbo will get converted to be wastegate controlled via sleeve. so that should help, but to put the cheary on top, the wastegates them selfs will be milled from 22mm to a 34mm hole. There wont be any boost creep issues. Also im taking out the ceramic shafts to be replaced with inconel one. way more durable/reliabilty.
Thanks for the visual, but this is alomost as bad as saying go single. I have the shop to put any two turbos on and make it custom. Cutomer wants what he wants..... a sleeper.
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