Single VS Dual Exhaust System.

[Chris_F]

it's a good point!

one thing to consider with the k24 though is that once it passes 5.5krpm-6krpm it starts to become starved for air because it's hard for the cylinders to be filled with air due to its really long stroke.

If you go for a more free flowing setup and plan on getting a tune later on you should increase the mid-range significantly.

That's why the jtune products allow the vtec point to be lowered to around 4000rpm. The K24's biggest advantage is always going to be it's mid range power.

If you don't plan on ever tuning the car or changing the vtec point tho all the extra flow you achieve won't be taken advantage of (just like any other car). If you check out the hondata reflash ppl in the states go crazy over its the 25+hp gain in the mid-range that makes it great bang for the buck, peak power is essentially unchanged.

[markasia]

it's a good point!

one thing to consider with the k24 though is that once it passes 5.5krpm-6krpm it starts to become starved for air because it's hard for the cylinders to be filled with air due to its really long stroke.

If you go for a more free flowing setup and plan on getting a tune later on you should increase the mid-range significantly.

That's why the jtune products allow the vtec point to be lowered to around 4000rpm. The K24's biggest advantage is always going to be it's mid range power.

If you don't plan on ever tuning the car or changing the vtec point tho all the extra flow you achieve won't be taken advantage of (just like any other car). If you check out the hondata reflash ppl in the states go crazy over its the 25+hp gain in the mid-range that makes it great bang for the buck, peak power is essentially unchanged.

So In A Way I Have To Take Into Consideration Of Tuning The Car Or Changing The Vtec Point In The Future?

[aaronng]

it's a good point!

one thing to consider with the k24 though is that once it passes 5.5krpm-6krpm it starts to become starved for air because it's hard for the cylinders to be filled with air due to its really long stroke.

It's not the stroke. It's the cylinder volume. In fact, the longer stroke helps with filling. If it was a short stroke-large bore engine, the filling efficiency would be worse than it is now.

[Lukey13]

So if the Euro would only benefit from a maximum exhaust pipe size of 60-63mm, what is the standard piping size and what will be the piping size of the Jtune product (when it's released in 2011)??

[ginganggooly]

So if the Euro would only benefit from a maximum exhaust pipe size of 60-63mm, what is the standard piping size and what will be the piping size of the Jtune product (when it's released in 2011)??

If the K-series powered race cars are anything to go by, a 3" system would be the way to go.