Hey guys. Just tryin to finish up all my resarch and what not so I can gather stuff for my turbo build. I'm going with the nismo front bumper on my car for the setup, I like it cause it is close to factory, sorta stealth like. I know they make the twin inlet intercoolers for the JWT turbo setup, .....i'm going with the greddy twin turbos. I keep hearing they decrease the air flow and you somewhat lose power from the all the extra pipin and what not and then I hear it doesn't. Just tryin to get a final word on the twin inlet and some feedback for people who have them would greatly be appreciated. tryin to see what is the best way to go with the nismo front bumper.

 

Im doing this setup on a NISMO bump but i'm still keepin the single greddy FMIC. No matter what air will still get to the IC via the big azz vents on that bumper.

 

anybody else with some feedback that might actually have the set up?

 

Well if that setup makes you lose power....someone needs to tell that to my G...because I am running over 500rwhp and will be doing a race map to 600rwhp. So someone is giving you wrong info. I have the JWT 700bb Turbo setup. Just click on my cardomain web page to get more info and pictures.

 

Yeah but you also have a built engine to....i'm keepin the stock block right now with factory internals and runnin low boost until i get ready to build the motor. can you get the twin inlet intercoolers for the greddy kit? i'm pretty sure it doesn't matter but i was just makin sure cause all i ever here people having is the JWT setup with the Twin inlets.

 

call Speed Force Racing...they will sell you their dual inlet fmic...all you'll need to do is fab some piping to fit it to the greddy kit

and you're not going to lose power...his built engine has nothing to do with anything...you might lose 1psi, but who cares? just turn up the boost a little...

 

dual intercoolers ftw looks so sick

 

Not knocking the JWT set up since I have 1, but the Z intercooler set up and the G intercooler set up using the Y pipe are not the most ideal configurations. Coming in from both sides I think the APS set up is the more ideal configuration.



The Greddy intercooler configuration is ideal for it's piping. Biggest upside of the JWT is no need to lose your bumper brace and the G set up is pretty much designed around the stock G bumper openings.

 

Good points, but...

The JWT design is more symmetric. If you look at the APS, the air from one turbo is going to get cooled much more than air from the other, which has a much shorter path to the intake piping. Vertical flow might be slightly better to reduce pressure loss but I don't know that it's any better at reducing intake temps; particularly the way that APS IC ducting is designed.

The key design win with the JWT is that they sized the ICs to fit the openings of the stock bumpers. Maximum airflow over the IC is critical to reduce temps maximally. A central IC obscured by a stock (or Nismo) bumper may be worse than you think because a portion of the hot air is never cooled by air-air exchange at all.

Get a bumper to match the IC dimensions or visa versa.

 

I will add that at least the APS vertical flow design has some air from both turbos always undergoing air-air heat exchange. Now consider the horizontal Greddy, where the top 1/3 is blocked by the bumper. All that hot air is going to go across and go right into the intake. It will mix with air from the lower half but that's a poor design I would think.

 

im still partial to the greddy design, it is a much larger core than the others listed here, APS JWT..


i actually am starting with a greddy intercooler on my new setup, im picking up my 2 GT35Rs today!! they will be in by end of next week ...

 

But if part of the core does not receive airflow, then wouldn't it actually be *worse* being bigger? (a portion of the hot air never really cools down)