27

ZZP LSJ Dual Pass Intercooler Plate Kit

SKU: ZZ-DUALPIC

$129.99 Sale price

Regular price $129.99

 ZZPerformance had a new end plate casted so we do not have to hack up a used stock plate, weld fittings on it, then thread ugly fittings into it. Ours is a new bolt on unit with no core charge!


The OEM liquid to air laminova intercooler flows in series and our dual pass plate kit converts it to run in parallel. Series means that it flows from one core to the next, then the next, then the next, then it exits the plate. Parallel means that it flows through two cores at once and then through the other two then out.The results are cooler outlet temperatures from the supercharger.

 

The OEM intercooler uses 4 laminova intercooler cores. Inside the intake manifold, hot air from the supercharger passes through the cores and then on to the engine. Pictures below show the stock lower intake manifold with the incoming air sections highlighted in red and the intercooled air flowing to the engine highlighted in blue.

 

The problem with the design of the factory system is this:


As you can see from the intake pictures above, the air has its choice of flowing though one of 4 cores. In this fashion, each core cools 25% of the air going into the engine. The factory intercooler system sends water from the front mount heat exchanger to only one of the IC cores. That IC core then feeds the next IC core and so on. With this design each laminova core receives warmer water. So if your incoming water is 80 deg going into the first core, it may be 90 going into the 2nd, then 100 going into the 3rd and 110 going into the 4th. Clearly this isn't the best way to utilize the cores.

 

By installing the dual pass end plate, the water is fed to 2 cores at the same time which then feed the other 2 cores. Using the above hypothetical numbers, 2 of the cores would receive 80 deg water and two of them would receive 90 deg water. This improves the systems ability to cool the air and lowers IATs.

 

There is another benefit to the dual pass and ZZP is proud to be the first to bring this information to light. The stock laminova cores are restrictive for a pump as large as the one used in the LSJ. The laminova cores have limited coolant flow area as shown below right and highlighted in blue.

 

By running the dual pass endplate, which runs 2 cores in parallel, the coolant flow rate is increased by 40%. This provides additional gains. The gains of higher coolant flow have been backed up by our supercharger dyno. We measured continued intercooler performance as flow increased. Gains did approach diminishing returns but there was a measured gain from 4 to 6 GPM.

 

Important to keep in mind is that a vehicle running our dual pass endplate will circulate ~1.5 gallons in a 14 second 1/4 mile pass. This should be considered when sizing your heat exchanger and reservoir .

 

End plate torque spec: 89 in lbs

 

Diagram

 

ZZP Dual Pass instructions

 

You are viewing a product listed on the following platform:

Ecotec

 ZZPerformance had a new end plate casted so we do not have to hack up a used stock plate, weld fittings on it, then thread ugly fittings into it. Ours is a new bolt on unit with no core charge!


The OEM liquid to air laminova intercooler flows in series and our dual pass plate kit converts it to run in parallel. Series means that it flows from one core to the next, then the next, then the next, then it exits the plate. Parallel means that it flows through two cores at once and then through the other two then out.The results are cooler outlet temperatures from the supercharger.

 

The OEM intercooler uses 4 laminova intercooler cores. Inside the intake manifold, hot air from the supercharger passes through the cores and then on to the engine. Pictures below show the stock lower intake manifold with the incoming air sections highlighted in red and the intercooled air flowing to the engine highlighted in blue.

 

The problem with the design of the factory system is this:


As you can see from the intake pictures above, the air has its choice of flowing though one of 4 cores. In this fashion, each core cools 25% of the air going into the engine. The factory intercooler system sends water from the front mount heat exchanger to only one of the IC cores. That IC core then feeds the next IC core and so on. With this design each laminova core receives warmer water. So if your incoming water is 80 deg going into the first core, it may be 90 going into the 2nd, then 100 going into the 3rd and 110 going into the 4th. Clearly this isn't the best way to utilize the cores.

 

By installing the dual pass end plate, the water is fed to 2 cores at the same time which then feed the other 2 cores. Using the above hypothetical numbers, 2 of the cores would receive 80 deg water and two of them would receive 90 deg water. This improves the systems ability to cool the air and lowers IATs.

 

There is another benefit to the dual pass and ZZP is proud to be the first to bring this information to light. The stock laminova cores are restrictive for a pump as large as the one used in the LSJ. The laminova cores have limited coolant flow area as shown below right and highlighted in blue.

 

By running the dual pass endplate, which runs 2 cores in parallel, the coolant flow rate is increased by 40%. This provides additional gains. The gains of higher coolant flow have been backed up by our supercharger dyno. We measured continued intercooler performance as flow increased. Gains did approach diminishing returns but there was a measured gain from 4 to 6 GPM.

 

Important to keep in mind is that a vehicle running our dual pass endplate will circulate ~1.5 gallons in a 14 second 1/4 mile pass. This should be considered when sizing your heat exchanger and reservoir .

 

End plate torque spec: 89 in lbs

 

Diagram

 

ZZP Dual Pass instructions

 

Customer Reviews

4.8 Based on 27 Reviews
5 ★
81% 
22
4 ★
15% 
4
3 ★
4% 
1
2 ★
0% 
0
1 ★
0% 
0
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
  • Install
  • heat exchanger
  • coolant temp
  • ait temps
RP
10/12/2019
Ryan Perez
United States

Dual pass

Great addition to the intercooling system , high quality and u can't beat the benefits especially at the price .. extremely easy to install . Love it ! Thanks zzp!

JA
07/24/2019
Jeffrey A.
Canada Canada

.

.

A ZZPerformance Customer
MS
07/14/2019
Martin S.
United States United States

Nice

The install wasn't too bad. bought this with the stealth heat exchanger and dropped my ait temps drastically including my coolant temp.

JL
05/12/2019
Jacob L.

Easy installation!

I've yet to utilize the function of this actual product I've installed it though install is Easy, I recommend cleaning the laminova cores with mineral spirits or brake clean while they're out anyway to wash out exhaust soot... I'm sure the product will be great! Great Job ZZP on the engineer process !

GG
08/30/2018
Guest G.

alright

plate is made well, but the hose just kinks, ended up having to use different hose

Be the first to leave a review!

Write a Review

Author
Rating
1 2 3 4 5
Questions
Photos

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Show Reviews