What's the approximate horsepower you can get if you have AEM CAI, UR pulley, and 5zigen exhaust?

Stock RL has 295 horsepower right? so those three combination would give maybe 25~30 hp?

With those combo, do you think RL can beat, for example, stock bmw 535xi?

 

Gaining some extra HP will always help acceleration, but it depends when you are gaining that HP, most likely with those mod you had mentioned, I think you are getting more HP at the high end, which mean you might accelerate better at higher rpm or speed. But 0-60, will you do better or worse, that is questionable. I remember the days when I add one of those big exhaust to my Honda Prelude SR, I lose some torque, but I do feel there are some gain at higher rpm or speed. Since our RL is lacking some low end torque, you should do some research on those parts that you are ordering.

 

Not a chance, 535xi has more torque and lighter than RL

 

+1

The main thing the RL needs is low end torque. That is why Anzbo is creating a J-Pipe for us. I am also dealing with someone to try and install a supercharger. F*** difficult as hell I tell ya.

It is about where would it go under the engine bay. haha

 

Actually, part of the reason for the J-Pipe is to increase airflow out of the engine to allow those of us with intakes to take more advantage of that increased airflow we get coming into the engine, IIRC (if I'm wrong, correct me guys! ). The J-pipe allows for minimal loss of low-end torque as compared to the true dual exhaust aznbo proposed.

Answer is here--click....search is your friend. I don't have a pulley and no one has dyno'ed with a pulley on yet, so we don't know how much potential there is in the RL.

 

so bob, the J-Pipe wouldn't help our low end?

 

Nope. The only ways, really, to get more low-end torque would be a) more displacement or b) a turbo. I am saying this, of course, admitting my 4th-grade understanding of engines and am hoping those more knowledgeable will chime in.

 

Bob is right, there is no N/A mod we can do to dramatically increase low end torque, unless we go with turbo or supercharge. However, through my research, I have quote the following from somewhere on the net.
"You'd want to look into a longer intake then stock with the Joe Z pipe for more torque. The general rule for intake pipe length is 13" for peak torque at 6000RPM, add 1.75" to the length for every 1000RPM you want to lower peak torque. So you may want to look for/construct an intake about 18" long to move peak torque (well the largest torque gained from the intake) down to just above 3000RPM."