Performance upgrades headers/superchargers

Nowwhat said:
Jack and Steve,,,,

would you agree:

1) that there is an optimum exhaust flow level for our motors with a paxton...that is to say that you could be too restrictive and by the same token too open....?

2) would you further agree that the optimum flow level has not been determined and therefore it is possible...just possible that you can achieve that flow level without headers...

lastlywould you agree that since I make 700rwhp on just boost and I can't put all of it to the ground anyway....that I simply do not need headers?

respectfully,
Mike


helllo.....?????:D
 
Nowwhat said:
Jack and Steve,,,,

would you agree:

1) that there is an optimum exhaust flow level for our motors with a paxton...that is to say that you could be too restrictive and by the same token too open....?

2) would you further agree that the optimum flow level has not been determined and therefore it is possible...just possible that you can achieve that flow level without headers...

lastlywould you agree that since I make 700rwhp on just boost and I can't put all of it to the ground anyway....that I simply do not need headers?

respectfully,
Mike
Okay yeah,
But headers look so cool. :dontknow:

And it sounds cool to say "I have headers on there.":eek:
 
ViperTruck2933 said:
Okay yeah,
But headers look so cool. :dontknow:

And it sounds cool to say "I have headers on there.":eek:


I had a header once:( ....................................just before I got married:confused:
 
ViperTruck2933 said:
Okay yeah,
But headers look so cool. :dontknow:

And it sounds cool to say "I have headers on there.":eek:

no doubt....and given unlimited funds....maybe...but I just hate seeing people toss $2000 and not get some numbers....

there are people out there that see an ad from Volant or any number of exhaust companies etc etc...that promise big numbers....I wish someone had presented both sides of the arguement before I spent $$$$$$ on a John H CAI that fricken sucked or Slowmasters that killed my power or drag tires that were too short etc etc....
 
Nowwhat said:
no doubt....and given unlimited funds....maybe...but I just hate seeing people toss $2000 and not get some numbers....

there are people out there that see an ad from Volant or any number of exhaust companies etc etc...that promise big numbers....I wish someone had presented both sides of the arguement before I spent $$$$$$ on a John H CAI that fricken sucked or Slowmasters that killed my power or drag tires that were too short etc etc....


I can help ya out............dont use conditioner and shammpoo at the same time to save time:D
 
Nowwhat said:
Jack and Steve,,,,

would you agree:

1) that there is an optimum exhaust flow level for our motors with a paxton...that is to say that you could be too restrictive and by the same token too open....?

2) would you further agree that the optimum flow level has not been determined and therefore it is possible...just possible that you can achieve that flow level without headers...

lastlywould you agree that since I make 700rwhp on just boost and I can't put all of it to the ground anyway....that I simply do not need headers?

respectfully,
Mike
Mike I got your back on this one.

This is how it was explained to me by Doug Levin. A stock engine's exhaust is about 80%-85% efficient. When you do you delete cats, add a cat-back and headers the exhaust efficiency goes to about 90% on an NA engine. Now on an FI engine just by deleteing cats and adding a cat-back the exhaust efficiency is approximately 120% way past it normal effiency that is why the headers do not add much rwhp on the dyno because the engine beyond its max, but they are other benefits to having headers (bling and sound).

Doug even showed me a Viper GTS Coupe he just finished doing this car had a tune, paxton with custom heat exchanger with stock exhaust manifold, stock front cats with rear deletes and B&B cat back. Dyno 636 rwhp 627 rwtp. I asked him why didn't the owner do long tubes he told me it was worth the rwhp gain to do the header $2000 for 3 rwhp. Oh and this car was a sleeper (super quite) by Viper standards.
 
Nowwhat said:
Jack and Steve,,,,

would you agree:

1) that there is an optimum exhaust flow level for our motors with a paxton...that is to say that you could be too restrictive and by the same token too open....?

2) would you further agree that the optimum flow level has not been determined and therefore it is possible...just possible that you can achieve that flow level without headers...

lastlywould you agree that since I make 700rwhp on just boost and I can't put all of it to the ground anyway....that I simply do not need headers?

respectfully,
Mike

1. Yes I agree.

2. Nope, disagree. There is NO way stock manifolds can flow as good as headers, period.

3. Disagree. I would agree you haven't been able to put it to the ground, I would not agree that you can't.
 
I say Mr. Nowwhat is a testimony to how much power can be made without headers, and with the HELP of NOS has the quickest time of any SRT Ram.:rock:

But i still like the look of headers , Nowwhat there is something about having 40k under the hood and stock manifolds showing:D

Hell at least paintem:p
 
Stinker said:
I say Mr. Nowwhat is a testimony to how much power can be made without headers, and with the HELP of NOS has the quickest time of any SRT Ram.:rock:

But i still like the look of headers , Nowwhat there is something about having 40k under the hood and stock manifolds showing:D

Hell at least paintem:p

I'm going to send mine and have them coated by Jet Hot.:D
 
Texas Yellow Fever said:
1. Yes I agree.

2. Nope, disagree. There is NO way stock manifolds can flow as good as headers, period.

3. Disagree. I would agree you haven't been able to put it to the ground, I would not agree that you can't.


...gggeeeeeez.....

I did not say manifolds flow as well as headers....I said the manifolds seem to flow the correct amount for a S/C....

and how in hell are you going to put down 900rwhp on street tires...?
 
Stinker said:
I say Mr. Nowwhat is a testimony to how much power can be made without headers, and with the HELP of NOS has the quickest time of any SRT Ram.:rock:

But i still like the look of headers , Nowwhat there is something about having 40k under the hood and stock manifolds showing:D

Hell at least paintem:p

Icononel heat shields.....:D
 
I haven't had the chance to do any before or after testing with these engines regarding the merits of headers etc. I did speak to Chuck Tator " viper wizard" who is installing My Roe and he said this: " the stock exhaust manifolds are fine for this application, I would just add a catback exhaust".
In the gas flow equation I believe a little more than an "open door" is needed for exiting gases.Particularly in a FI situation where some sort of pressure balance is needed. MY 2 CENTS

Steve
 
Well I am staying N/A anyway. Screw backpressure.
:thefinger: :thefinger: :thefinger: :thefinger: :thefinger:


I love my headers. :rofl:



:D :D :D :burnout:
 
Nowwhat said:
I said the manifolds seem to flow the correct amount for a S/C....

I suppose that would depend on each setup. At some point, I'd have to think that the stock manifolds would become inefficient.

Perhaps it is that with FI that the performance of the engine is less influenced by having a free-flowing exhaust system? On the surface, one would still be thinking that the air-in/air-out rule still applies. By that thinking, it would seem to defy logic that the engine, as an air pump, would not benefit even more from exhaust improvements because of the increased volume of air being stuffed into it. But of course, it's still how everything performs as a system, and what application it was built for.
 
Ram From Hell said:
I suppose that would depend on each setup. At some point, I'd have to think that the stock manifolds would become inefficient.

Perhaps it is that with FI that the performance of the engine is less influenced by having a free-flowing exhaust system? On the surface, one would still be thinking that the air-in/air-out rule still applies. By that thinking, it would seem to defy logic that the engine, as an air pump, would not benefit even more from exhaust improvements because of the increased volume of air being stuffed into it. But of course, it's still how everything performs as a system, and what application it was built for.


well said...
 

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