sorry, does the nisei licp work turbo xs ic?

 

i believe it will work with any intercooler, check with nisei to be sure.

 

no zip ties...no problem
All stock pipes including the one off of the turbo was replaced.

 

aftermarket pipes that fit the stock fmic will fit any fmic that can use stock pipes.

 

But do we have a consensus if it is better to TAPER (reduce width, someone asked me what taper means) slowly along the LICP like starting at 2/3s, or to abruptly taper using the coupling or at the last few inches of the pipe?

 

From a fluid dynamics perspective, a smooth taper is always preferred to minimize turbulence. Seems like there is a trade-off between smooth taper and less of the small diameter. Quite a few people report some improvement after installing a LICP, so it seems that the larger diameter piping is more important.

 

That is incorrect. Using the coupling as transition is pretty abrupt and creates a flow loss. When you have a tapered pipe going from small to big, it's called a diffuser; you can also call it a diverging nozzle (as opposed to a converging nozzle which goes from big to small). The smaller the angle of the diffuser, the lower the loss. You try to not go bigger than ~7 degrees on the taper (or 14 degrees included angle).

Well, short version, when you go immediately from a small hole to a bigger hole (no taper, basically 90 degree angles), you get the biggest losses. A diverging nozzle minimizes losses.

In the case of LICPs, using a diffuser section probably adds a bit of cost and complexity (because you also need the smaller diameter piping as opposed to one size piping). Using the coupler for the transition makes things a lot simpler. While not ideal, it's probably not much of a loss compared to if you used a proper diffuser on something like this.

If someone gets bored... could always test a few variations out on a flow bench!

 

Ive run the buschur LICP with no brackets and no undertray for nearly a year and had no issues with it ever popping off.

 

I started thinking along those lines towards the end of my thinking out loud post :P Thanks for verifying what I thought was just paranoia

 

The motor moves around somewhat during acceleration and engine braking. Since the Nisei has a very short coupler between the LICP and the turbo outlet (vs the long rubber hose with the stock setup), and the Nisei also has the mounting bracket, I'm wondering if that puts extra stress on the LICP or the turbo when the engine moves around.

 

Sounds like an engine dampner is in order.

 

I just spoke to AMS about the licp and they said the reason theirs is smaller in dia at one end because it helps spool up and actually performs better that way, I don't recall exactly the justifications that were given but do remember them making sense.

Would there be any loss or gain of power between one licp over the other? To be speicifc the AMS over lets say Nisei or HPF?

 

Although helping spoolup is good wouldn't you still have a power loss up top if the pipe couldn't support what it was putting out?

 

The new AMS pipe with integrated support bracket looks to be one heck of a comprehensive solution

 

Have you not been looking at all the posts?

I posted pictures of the various designs of LICP. Some taper gradually, some taper at the coupling. There IS a performance difference.