If you remember we are using a pulse trap/anti reversion collector on the exhaust manifold. The intercooler is a 48 charge row liquid/air setup. We are using the old AC exchanger and the heat exchanger for the L/A system. The resivour is in the trunk.

 

I would like to see better pics of the manifold please?

 

Modified by Blitzkrieg at 4:34 PM 2/4/2004

 

Hey ant why don't you guys save some of your money that you will waste on car parts and buy a digital camera that can actually take some good pics.

 

i think the pics are fine i get the idea and i like the manifold

 

Thats a helluva manifold

 

wow...very interesting, i have never seen that type of mani before....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blitzkrieg &raquo;</TD></TR><TR><TD CLASS="quote">If you remember we are using a pulse trap/anti reversion collector on the exhaust manifold.</TD></TR></TABLE>

I still don't know how that works? If there's any "reversion", open up your downpipe! That "collector" looks like a lot of turbulence to me though...but whatever floats your boat.

Any dyno numbers yet?

 

By the laws of physics opening the downpipe is not going to stop reversion due to the natural restriction that the turbine creates. Keep in mind that a nice smooth laminate merge collector flows smooth in BOTH directions. Also keep in mind that a turbine is nothing but turbulance. What difference is some small turbulence before it in the pusle trap collector. The Exhaust pressure is stuck due to the pressure differences between the high pressure runner and the low pressure collector. It is forced to flow through the turbine rather than back into the runner to distrupt the next exhaust pulse.

 

To me, sound, air, and heat will have to work ALOT harder to turn 180° to go back UP the runners in a 4-1 merge collector, verses the 35-70° that your collector presents.
Im not an engineer or anything Anthony, but it just seems that way to me.
Also, when does the situation arise that sound, air, and heat travels "up" from the turbo, when its guided at super-sonic speeds away from the runners by the collector?
Again, not saying your collector sucks, or mine is the best in world, Im just "inquiring".

 

Why do you need anti-reversion ports on a turbocharged motor with cams that should be setup with zero or very little overlap.

 

I am not talking total reversion into the head mostly the primaries and ports. Air will always take the path of least restriction.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blitzkrieg &raquo;</TD></TR><TR><TD CLASS="quote">By the laws of physics opening the downpipe is not going to stop reversion due to the natural restriction that the turbine creates. </TD></TR></TABLE>

There's a difference between turbulence BEFORE the turbine and turbulence when it goes through the housing. It's a given that anything in the path of the air flow will cause some disturbance. But it would seem that your collector does that BEFORE it enters the turbine. That in turn would likely affect spoolup time in comparison to a more direct merge collector. Also, a collector size of that size and design might radiate off the needed exhaust heat energy that helps with spool up.

Just my $0.02. If it works, then good job. There will always be innovators, I suppose. Strap it on the dyno and let the numbers speak for themselves.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blitzkrieg &raquo;</TD></TR><TR><TD CLASS="quote">Air will always take the path of least restriction.</TD></TR></TABLE>

That is why you open up the downpipe.

There will always be a high pressure area before the turbo. That can never change, it's constant as long as the motor is running. But by opening up the area AFTER the turbo, you create a lower pressure area. And guess where air likes to flow to?....the path of least resistance.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98CTRCoupe &raquo;</TD></TR><TR><TD CLASS="quote">

That is why you open up the downpipe.

There will always be a high pressure area before the turbo. That can never change, it's constant as long as the motor is running. But by opening up the area AFTER the turbo, you create a lower pressure area. And guess where air likes to flow to?....the path of least resistance.

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talk about missing the point of the conversation. lol. re-read their posts and then re-read what you put down