i said earlier that i asked a friend who has an s2k if you would gain hp through the bypass and he said you lose hp, but i know that you woud gain HP by doing this free mod. and as for the oranges that sometimes get ice on them, its during the cold season up in the orange groves in upper florida where it can reach 19 degrees.

 

I bypassed mine, and yes i do notice a little less heatsink and a little more engine responsiveness but hp its not obvious.

 

I've had mine off now for more then a year and never put it back. I live in MA where it gets very cold during the winter and it never freezes up. i couldn't really say theres a HP improvement BUT on hot humid days i don't get that when you start from a stop the car doesn't buck or hesitate.

 

Ive been running this for over a year and in cold climates too. I personally never noticed a change either, I would rather run stock but have been too lazy to put it back to stock. I think this mod is important to keep your intake tract free of ice when its really cold. I just think abou the ice buildup of the air rushing through when its really cold. Imo, i dont think it does anything noticeable for power outside of a dynos margin of error (aka you might make 2 hp but who really knows)

 

my opinion on this mod is that the whole intake will freeze up in cold climates is BS. you still have hot air under the hood. plus the air is moving to fast to freeze up. i'm sure it does help a wee bit. i feel that its faster in cold temps. and in hot temps like i said before, the car doesn't bog when from starting from a stop. i have the coolant flowing directly back into the engine instead of going to the sensor on the side of the intake manifold.

 

The other heat in the engine bay really doesn't help much. Being a pilot, I know about the effects of carb icing first hand. It does happen and it is real...and in the aviation community it has cost lives.

Even though we have fuel injection, our throttle body acts very similar to the venturi in a carburetor.

http://en.wikipedia.org/wiki/Carburetor_icing

http://faq.ninja250.org/wiki/What_is_carburetor_ice%3F

 

ahh yes that is what I was talking about. thank you.

Imo, I think this is the reason for the throttle body coolant passageways

 

Yes it does, through coolant temp sensor, it knows that the car is cold, and adjusts the Intake Idle control valve accordingly.


--snip -- You do get ice on the oranges from time to time, don't you? --snip--

Seriously, now. It's over 100F underhood. Heatsoak will take care of the intake air temp. you think you're getting below-freezing air into your engine? don't we all wish.

--snip-- Remember, there is lots of water vapor from the crankcase (blow-by combustion) recirculated through the intake system via the PCV system. If the temperature of the intake air is less than freezing, you could be manufacturing snow and ice in your intake system. --snip--

What vapor? It's oil vapor, with rust-inhibitors, and oil don't freeze, remember?

 

yeah if you live in florida all yera long

 

I definitely did the bypass as I live in Guam where the average mean temperature is like 82F. It might get to about 70F here in late Jan/early Feb, so definitely no reason to be excessively heating the tb when on average my AIT is already 100+.

If I lived in a cold climate, I might make the change for summer and put back to stock for winter to just play it safe. It doesn't take long at all to change up.