[Redline Motorsports]

We recently got asked to comprehensively test a ported blower against the stock LT4 1700 supercharger. This demonstration was on a 2019 ZL1 which had our PHASE3 Performance Package which consists of a specific camshaft profile, lower pulley and long tube headers.....in a nut shell. We did the swap straight up AFTER all calibration was completed and all within an hours time to not "unsettle" the test....we are not into "pull it in the morning" numbers....

Full article was posted here;

https://www.lsxmag.com/tech-stories/...-a-zl1-camaro/

HT

[Gunkk]

Impressive results.


Heads up for next time you run a ZL1... the main engine coolant is low in this pic. The top tank is supposed to be completely full on the 6th gen Camaro.

[Redline Motorsports]

Originally Posted by Gunkk

Impressive results.


Heads up for next time you run a ZL1... the main engine coolant is low in this pic. The top tank is supposed to be completely full on the 6th gen Camaro.

We are fully aware of this. This is what we do....that photo was a random staged photo for the articles purpose.....

[IneedAZ]

Nice gains! Right in the ball park and mods i considered. Still concerned with heat though. I too am in Florida and with the heat and humidity we get most of the year, i am concerned going that route vs blower change(2650 unit).

Did the owner of that car do any cooling mods?

[2out2sea]

Kong is good for additional lbs boost and resultant more hp. My experience was almost identical to Redline's results. Whatever Kong is doing at the snout appears to allow the rotors to make boost instead of wasting energy trying to draw air into the supercharger plenum.

[Fraxum]

I would like to see that test before adding the Cam + LTs.

[Redline Motorsports]

Originally Posted by IneedAZ

Nice gains! Right in the ball park and mods i considered. Still concerned with heat though. I too am in Florida and with the heat and humidity we get most of the year, i am concerned going that route vs blower change(2650 unit).

Did the owner of that car do any cooling mods?

This mod is far from a 2650 upgrade but yet another option. At the end of the day the 1700 has its limits in mass flow and it happens quick...unlike a 2650 which is very efficient at higher pressures. Here is another good read related to the 1700 vs the 2650 we did;

https://www.lsxmag.com/tech-stories/...rger-on-a-zl1/

[2out2sea]

Originally Posted by Fraxum

I would like to see that test before adding the Cam + LTs.

If it makes any difference my car made 30whp just swapping to Kong ported blower. No cam, but I did have lt and green cats. I am curious on how the Magnuson 2300 stacks up. I like the fact that the 2300 is bolt on without trimming under the hood, etc. I am more interested in a bolt on car than a full build.

[regnouy37]

Originally Posted by 2out2sea

If it makes any difference my car made 30whp just swapping to Kong ported blower. No cam, but I did have lt and green cats. I am curious on how the Magnuson 2300 stacks up. I like the fact that the 2300 is bolt on without trimming under the hood, etc. I am more interested in a bolt on car than a full build.

I'm curious about this as well. Hopefully someone can post a picture of what the 2300 cooling bricks look like.

[Redline Motorsports]

Originally Posted by 2out2sea

If it makes any difference my car made 30whp just swapping to Kong ported blower. No cam, but I did have lt and green cats. I am curious on how the Magnuson 2300 stacks up. I like the fact that the 2300 is bolt on without trimming under the hood, etc. I am more interested in a bolt on car than a full build.

The 2650 required minimal trimming and parts that can be purchased from the dealer and reinstalled if you ever took it off. Its a far superior supercharger from the 2300.

[Dixie ZL1]

Originally Posted by 2out2sea

Kong is good for additional lbs boost and resultant more hp. My experience was almost identical to Redline's results. Whatever Kong is doing at the snout appears to allow the rotors to make boost instead of wasting energy trying to draw air into the supercharger plenum.

More inlet airflow creates a larger post rotor airmass, hence greater boost. The stock snout is a large restriction, so increase flow past that and you have a larger volume of compressible air and therefore more boost.

Boost is a simple function of restriction, so port the blower and heads after the ported snout and boost will decrease.

[2out2sea]

Originally Posted by Dixie ZL1

More inlet airflow creates a larger post rotor airmass, hence greater boost. The stock snout is a large restriction, so increase flow past that and you have a larger volume of compressible air and therefore more boost.

Boost is a simple function of restriction, so port the blower and heads after the ported snout and boost will decrease.

I thought initially that a port job on the stock blower was just increasing the size of the snout and maybe increasing the internal sc volume (along with smoothing the casting). I was wrong. My car was dynod with two ported chargers with two different ported snouts. Swap was done on the same day.
The Kong blower and snout made more boost and more overall hp. I'm not a Kong salesman. I just found it very interesting that the difference port work made a big difference.

Sorry for the thread Jack.

[2out2sea]

Redline
Can you guys help the uninitiated out here? Other than the obvious volume increase, what are the differences between the 2300 and 2650?

[Redline Motorsports]

Originally Posted by 2out2sea

Redline
Can you guys help the uninitiated out here? Other than the obvious volume increase, what are the differences between the 2300 and 2650?

check out post #7 there is a link on a test we did it has some good info and pics. The 2650 is the latest from the TVS rotor family. The rotors are twisted in a unique manner that make them efficiency. Part of efficiency is the ability to move more air mass with less heat. All forms of forced induction devices have a certain efficiency range they work in...this being a supercharger (both positive displacement and centrifugal) as well as turbos.

The 2650 has a much better efficiency where GM runs it on the LT5 and that efficiency carries well up into 20 lbs of boost. They also took some drag out of it so it frees up power. Edelbrocks 2650 has a huge cooling brick and when combined with a matching heat exchanger you can solve a lot of IAT problems which again equates to more performance.

The above statement is clinical fact but I'm sure it will be debated by the trolls...