guys i appreciate all the helpful info on bp and gas velocity. but can we take all the arguing of whats better and whats not to another thread?

 

Like he said, you need the pipes to create the velocity.


I have not tuned any 1000 hp cars but I do have a bachleors in aerospace engineering and a masters in applied physics. I have not only seen the mathematical breakdown but have the knowledge to understand it. I have studied fluid flow for 6 years, used it for 8 professionaly and have a Professional Engineering (PE) certification to back my statement. I also designed the intake manifold and exterior body for the Tim Fireballed race car. I can tell you from absoulte proven fact, that you want zero back pressure in any exhaust.

 

And I stayed at a Holiday Inn last night.

 

^^^ HA HA HA HA

I am actually typing this right now at a Holiday Inn Express. I have been up in Boston for the past 5 months for a project.

 

I was near you. Just got back from Stratfort, CT.

 

 

Hahaha

 

First yo complain about flaming now because of information overload lol

 

People are discussing the facts and myths about what is required to design the best flowing exhaust in a thread about someone lacking the appropriate knowledge and planning on building a custom exhaust and you want to complain?

What did you expect? You drop 200 dollars on acouple pipes on ebay, post acouple pics, then just expect everyone to flock to your thread and tell you how amazing you are? It seems obvious you do not really know what you are getting into or what you are doing. It is probably in your best interest to read what has been posted and rethink this project.

 

You just proved my point... magic word "race car"

In a rc you want zero street car you neeeeeeeeed some.

 

im not complaining about that. im complaining that you guys have made 4 pages of fighting back and forth. but go ahead. im just going to make a new progress thread anyways when i actually start

 

You obviously misread. I designed the intake manifold, not the exhaust system. He was actually just running velocity stacks. I purely was stating past experience that to give credence to my claim.

Please listen, in any exhaust application you want no back pressure, race car or street car. I thought your 1000+ hp tuning would have taught you this.

 

Smh...

You're missing the point.



Here perhaps this can bring some light to this.

Forget "peak hp"


Why do cars need backpressure?

What are the benefits?

What are the negatives?

 

If you're theory serves right then this setup would be idea... correct me if I'm wrong:


headers to 3 inch exhaust (dual ) at x pipe it'll continue to 3 inch out dual...

at muffler megaphone to 5 inches.


No?





I understand VERY well what you dearly mean with gas velocity. But you have to understand that pressure even at 0psi is better than a negative of any psi. Which exclusively relates to gas velocity.


Without pressure you have no velocity. There is no replacing that.

 

Cars do not need backpressure

There are no benefits

Everything is negative