Check My Hot Side

[Coley]

Just wondering how much more power you get from doing the hot side? I've got new cold side piping and intake but was wondering if its really worth waiting to do the hot side? Any opinions?

[mic]

It is aslong as your hotside pipework is the same size as your end tanks. Dont do as I done though, its bodgey and would only be good 4 a drag car. It was an experiment 4 me.

Edited 27/06/08 08:15 AM by mic

[KAZ68U]

Is there any reason why you used what looks to be 3'' pipe doing this job very curious, not knocking what you have done in any way as its prime to see people having a go at things for sure?

Increasing the size of the hot side piping over the stock size what made you think of doing that was it mainly to shorten the pipe run or for power/performance?

In turbo setups the hot side pipe should always be carefully matched with the size of the comp cover outlet.

Adding a 3'' pipe for instance isnt gonna allow any more flow to run down that hotside pipe as it is restricted by the size of the turbo outlet prior to filling the 3'' pipe run.

What I can see it doing straight up is decreasing the velocity of the air pushing through the pipe and possibly adding a micron of a cooling effect before it reaches the cooler.

I see you said its an experiment so I thought I may aswell add my knowledge to this and it might help somebody out!

[mic]

The stock hot side pipe is bigger than the comp outlet anyways. If that is your analogy then why do guys get 4 inch dumps put on the back of their stock turbo that has a turbine wheel of 67mm or so ? I think its fine aslong as it does not come to a bottleneck somewhere, my silly setup went from 3 inch into a 2.5 inch end tank. And yes, I thought this would be a shorter path with less jagged turns.

[RAP1D]

At the moment mine has a short 3inch hot side... battery tray has been cut out, so the piping runs through and under the headlight.

The change from my usual 2.5inch hot side (that I sell as part of my IC kits), to this 3inch hot side resulted in some added lag, but some more punch through the midrange.

Timing has been advanced down low to fix the lag, now its very responsive.

I think for most guys the change to 2.5inch would be fine as it doesnt really need any timing changes to fix up the lag...

But hey, if it works on your set up, which you would be able to tell straight away, then your doing well.