Ideas for more power??

BLCK4X4

New member
Hey guys, so I was in this conversation with a fellow jeep buddy, thought I'd ask everyone what they think...

The conversation was about which is the best way to gain more power in the engine. Super charger, turbo, Hemi..ect!
What would you do with a 2015 jk?

Let's hear it?
 
Regear. Beyond that, LS motor swap. Superchargers and turbos are lame.

All of this^^^

why are superchargers lame?

I've heard that they have more problems than benefits.

I personally love forced air induction and have lots of experience with modifying vehicles with them. As much as I love them, if the turbo/sc wasn't there from factory, in my experience, it adds a list of headaches and money to follow. I myself and others I have known have sold vehicles and engines in mid-project while attempting a forced air induction mod before the project ever gets completed. I don't know that I'd do it again honestly unless the vehicle was set up from factory to have forced air induction on it.
 
I personally love forced air induction and have lots of experience with modifying vehicles with them. As much as I love them, if the turbo/sc wasn't there from factory, in my experience, it adds a list of headaches and money to follow. I myself and others I have known have sold vehicles and engines in mid-project while attempting a forced air induction mod before the project ever gets completed. I don't know that I'd do it again honestly unless the vehicle was set up from factory to have forced air induction on it.

On a street car/race car yea sure a supercharger or turbo is great. On a jeep, no point
 
On a street car/race car yea sure a supercharger or turbo is great. On a jeep, no point

I know most of the power comes from higher rpms, but do you know if you end up losing power in the lower rpms?

If there was a reliable option out there that brought decent mid range power, do you think it would be a good option for a daily driver?
 
why are superchargers lame?

Because nobody has brought one to the market for the JK yet that does not adversely effect the drivability of your Jeep. Part of the problem is the lack of a mass air flow meter. The JK is a speed density system as far as I know. It has an inlet air temp sensor, but no mass air flow meter. A speed density system is much harder to tune and make work well without effecting drivability, especially when you throw a supercharger into the mix.


I know most of the power comes from higher rpms, but do you know if you end up losing power in the lower rpms?

If there was a reliable option out there that brought decent mid range power, do you think it would be a good option for a daily driver?


On a PROPER positive displacement or twin screw compressor supercharger system, no. The boost bypass valve will direct air past the compressor rotors and the supercharger will not build any boost, therefore not requiring extra power to spin. You can unhook the belt on a supercharger and spin the pulley by hand effortlessly. Really the only time a supercharger robs any noticeable amount of power from the engine, is when it is making boost. It can take over 50hp to spin a twin screw supercharger to over 25lbs of boost, but it's giving the engine 400 - 500hp in return, so it's still creating significant gains. That is why turbo chargers can be a more efficient power adder, they do not require engine crankshaft power to operate.

On a centrifugal supercharger system, I'm not sure. I've never used one. So I have no idea how the boost bypass system would operate at part throttle/no boost conditions.
 
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......Aside from Turbos & Superchargers, bolt ons or adds on will give you SOME Horsepower / Torque, but the cost doesn't justify the HP/TQ you get in the end...

First and foremost regearing will give you back the drivability / power you may have lost by running bigger tires mixed with improper gearing. ...Other than that you could add:

  1. An aftermarket muffler / exhaust
  2. A tuner / programmer

:beer:
 
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