anyone running jwt tt with greddy intercooler?
11-07-2009, 05:01 PM
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anyone running jwt tt with greddy intercooler?
i saw couple guys here running jwt tt with greddy intercoolers, cant find the threads anymore. just wondering what is needed to do this intercooler conversion, there is a pipe that runs to the middle of the jwt intercooler, wondering where does that go once you change it to greddy, please provide info thanks
11-07-2009, 05:10 PM
#2
i saw couple guys here running jwt tt with greddy intercoolers, cant find the threads anymore. just wondering what is needed to do this intercooler conversion, there is a pipe that runs to the middle of the jwt intercooler, wondering where does that go once you change it to greddy, please provide info thanks
greddy fmic (I=intake piping connected to plenum)
..._____________
>|____________|
>|____________>I
JWT TWIN FMIC
**________****_________
>|_______|> I<|________|<
the arrows represent the intake charge from the turbos
Basically the greddy is one i/c with two entrances, one exit to the intake mani, and the jwt is two individual intercoolers meeting together ala y pipe to go into the intake manifold.
This is one of the reasons (besides water cooling, and low end torque) I think the jwt kit is a better track kit....
Maybe this helped?
But for the most part I think you would have to do full custom intake piping off the turbos. IMO if you are going to do that much work to get the FMIC to fit, you might as well buy a cheaper I/C. But don't fear FMIC piping, its a lot easier than it seems. 
Last edited by Resmarted; 11-07-2009 at 05:13 PM. Reason: added the stars to line up my uber diagram
11-07-2009, 05:21 PM
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let me make a diagram, because I'm under the impression you are missing a key component to this....
greddy fmic (I=intake piping connected to plenum)
..._____________
>|____________|
>|____________>I
JWT TWIN FMIC
**________****_________
>|_______|> I<|________|<
the arrows represent the intake charge from the turbos
Basically the greddy is one i/c with two entrances, one exit to the intake mani, and the jwt is two individual intercoolers meeting together ala y pipe to go into the intake manifold.
This is one of the reasons (besides water cooling, and low end torque) I think the jwt kit is a better track kit....
Maybe this helped? But for the most part I think you would have to do full custom intake piping off the turbos. IMO if you are going to do that much work to get the FMIC to fit, you might as well buy a cheaper I/C. But don't fear FMIC piping, its a lot easier than it seems.
greddy fmic (I=intake piping connected to plenum)
..._____________
>|____________|
>|____________>I
JWT TWIN FMIC
**________****_________
>|_______|> I<|________|<
the arrows represent the intake charge from the turbos
Basically the greddy is one i/c with two entrances, one exit to the intake mani, and the jwt is two individual intercoolers meeting together ala y pipe to go into the intake manifold.
This is one of the reasons (besides water cooling, and low end torque) I think the jwt kit is a better track kit....
Maybe this helped?
But for the most part I think you would have to do full custom intake piping off the turbos. IMO if you are going to do that much work to get the FMIC to fit, you might as well buy a cheaper I/C. But don't fear FMIC piping, its a lot easier than it seems.
11-07-2009, 06:34 PM
#5
XKR did run the JWT with Greddy. Forged has done it a few times, Sharif said the JWT piping can be modified to work with the Greddy IC. It is supposed to be very good for helping prevent heat soak on track days as well as less restriction when making big power. Look at XKRs build in the shop builds section the pictures below are not XKR but another Forged customer.
Just wrapped another one of these hybrid JWT850bb coupled with Greddy Intercooler setups. All of the piping was modified and created in house, and we switch to the more typical twin intake setup. The customer originally had the complete JWT 530bb Kit on the car, and like many us...eventually wanted more power. 
We have found that after about 500whp or so, the JWT intercooler setup is too restrictive to continue making good efficient power. Moving to the large core Greddy intercooler gives us all the overhead we need.
Key Components:
Forged Performance S1 Shortblock
JWT C2 Camshafts
Fcon Vpro Complete EMS with Knock Amp
HKS 1000cc Injectors
Carbonetic Triple Disc Clutch
Just thought I would share.
We have found that after about 500whp or so, the JWT intercooler setup is too restrictive to continue making good efficient power. Moving to the large core Greddy intercooler gives us all the overhead we need.
Key Components:
Forged Performance S1 Shortblock
JWT C2 Camshafts
Fcon Vpro Complete EMS with Knock Amp
HKS 1000cc Injectors
Carbonetic Triple Disc Clutch
Just thought I would share.
Last edited by Sylvan Lake V35; 11-07-2009 at 06:38 PM.
11-07-2009, 10:42 PM
#6
XKR did run the JWT with Greddy. Forged has done it a few times, Sharif said the JWT piping can be modified to work with the Greddy IC. It is supposed to be very good for helping prevent heat soak on track days as well as less restriction when making big power. Look at XKRs build in the shop builds section the pictures below are not XKR but another Forged customer.
nice pickup on that though, i now remember seeing this on XKR's build thread
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05-12-2012, 12:57 PM
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Sorry to bring this topic up again but I have a 03 350z Jwt TT and I want to run the Greddy intercooler. My question is can I just flip the Greddy intercooler around so it would be like an Aps intercooler? So basically on the passenger side there one inlet for the turbo. On the driver side there one inlet on the bottom for the turbo and the top one is going to the throttle body.
05-14-2012, 05:38 AM
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Sorry to bring this topic up again but I have a 03 350z Jwt TT and I want to run the Greddy intercooler. My question is can I just flip the Greddy intercooler around so it would be like an Aps intercooler? So basically on the passenger side there one inlet for the turbo. On the driver side there one inlet on the bottom for the turbo and the top one is going to the throttle body.
hes discribing what sounds like a huge problem, flowing charge air into both sides of the FMIC 
05-18-2012, 10:14 PM
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I know it will work if I run it exactly almost the same as the original setup which is like this
greddy fmic (I=intake piping connected to plenum)
_____________
>|____________|
>|____________l >I
I would like to know if I can run it this way
_____________
l____________l>I
>l____________l<
For those that are disagreeing I would like to know why, not just a simple answer as no I can't do that. Yes there charge air flowing on both bottom side of the setup on how I would like to run it. Wouldn't my setup be the same as the Jwt intercooler in a similar way? So the Jwt intercooler both side have charge air flowing going through it to a center piece which lead to the plenum/throttle body. I just want to know for sure that my setup will work right because I don't want to waste my time and money on something that will not work. Thanks for all the help in advance.
greddy fmic (I=intake piping connected to plenum)
_____________
>|____________|
>|____________l >I
I would like to know if I can run it this way
_____________
l____________l>I
>l____________l<
For those that are disagreeing I would like to know why, not just a simple answer as no I can't do that. Yes there charge air flowing on both bottom side of the setup on how I would like to run it. Wouldn't my setup be the same as the Jwt intercooler in a similar way? So the Jwt intercooler both side have charge air flowing going through it to a center piece which lead to the plenum/throttle body. I just want to know for sure that my setup will work right because I don't want to waste my time and money on something that will not work. Thanks for all the help in advance.
05-18-2012, 10:41 PM
#18
I understand what you're getting at. I think the "Greddy" way the pipe to the throttle body is larger diameter than the " feed" pipes so that might be a hinderece you would have to verify that for sure. For example the one feed pipe may be 2" and one 3" and you new outlet to the TB may be 2" I would get the inlet/outlet measurements checked. They do look different sizes in the pictures.
I would get the inlet/outlet measurements checked. They do look different sizes in the pictures.
Last edited by Sylvan Lake V35; 05-18-2012 at 10:42 PM.
05-18-2012, 11:24 PM
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I understand what you're getting at. I think the "Greddy" way the pipe to the throttle body is larger diameter than the " feed" pipes so that might be a hinderece you would have to verify that for sure. For example the one feed pipe may be 2" and one 3" and you new outlet to the TB may be 2" I would get the inlet/outlet measurements checked. They do look different sizes in the pictures.
I would get the inlet/outlet measurements checked. They do look different sizes in the pictures.(Original Greddy intercooler setup)
2.5 inches>|____________|
2.5 inches>|____________l >I 3 inches
I would like to know if I can run it this way, keep in mind this is before I add the coupler to change the sizes
_____________
l____________l>I 2.5 inches
3 inches>l____________l< 2.5 inches
But here the catch, ok for my passenger side I'm going to run a 2 to 3 inches silicone coupler, driver side bottom 2 to 2.5 inches and for the driver top side 2.5 to 3 inches 90% degree coupler. So basically both bottom sides are 2 inches going to the turbo and the driver top side is a 3 going all the way to the plenum. I have the Greddy intercooler already but want to know for sure this will work. I can take pictures if you guy want on how I would like it to be setup. By the way the original Jwt intercooler run 2 inches on both bottom sides and for the center piece, they run a 2 inch pipe to a 2.5 inch and finally to a 3 inch pipe which go to the plenum.
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