Why round exhaust pipe?

[SuperBuickGuy]

Larry's Pipemax is a hell of a deal at $45. He gets you close to the mark, then you need to test from there.

There are no silver bullets, unless you are going to pay big bucks for someone else to science it out, build it and test it.

is here where I mention that my wife designs inhalers and has all that stuff (flow testing equipment/computers with airflow modeling on them/etc) right in her lab?

[Bob Holmes]

Bastard!! You've been holding out on us!!!

Nice. Now, what test are you going to design, and then report the findings?

[MR P-BODY]

Also if it was so easy the pro stocks wouldnt need to dyno their
engines.... but they spend countless hours on them looking for
that last couple of HP at any given condition (high elevation
VS sea level )

[SuperBuickGuy]

Larry's Pipemax is a hell of a deal at $45. He gets you close to the mark, then you need to test from there.

There are no silver bullets, unless you are going to pay big bucks for someone else to science it out, build it and test it.

and in the end it probably doesn't make one bit of difference to anyone but the guys competing at the very top of the sport, or very competitive classes

[SuperBuickGuy]

Bastard!! You've been holding out on us!!!

Nice. Now, what test are you going to design, and then report the findings?

dammit Bob, do you honestly don't think a person who is in the is supported by an industry that feels no risk is the minimum, and who studies the minutiae of law wouldn't have some kind of idea of the answer before he asked the question? Or to quote John Travolta from "A Civil Procedure" "never, ever ask a question in which you do not know know the answer." That said, I'm neither an expert nor omnipotent so I do check my work by asking questions - and I've learned a couple things, plus got a new avenue to test (x pipes).

[moparmaniac07]

I still build all my own
headers.. mainly due to what I run and nothing is made for them

Like a V8 rampage?

[MR P-BODY]

Like a V8 rampage?

Yeah, I never did find a aftermarket set.... like I really looked
didnt have much choice... or my W-9 headers for the
P-Body

[CDMBill]

My those are pretty. Whose coating did you use? I went with JetHot inside and out all the way through the x-pipe. Pipe Max helped me justify the short stepped primaries I built for mine as that is what would fit and be removable form under the car with out pulling the engine and trans and accomodate the frame clearance tubes and meet the x-pipe. Ideal no, but servicable. What I can't do is fit them on the DTS or Super Flow engine dynos.

Your Rampage just rules, I'm surprised more people haven't built them given how great it looks as you've done it.

[MR P-BODY]

My those are pretty. Whose coating did you use? I went with JetHot inside and out all the way through the x-pipe. Pipe Max helped me justify the short stepped primaries I built for mine as that is what would fit and be removable form under the car with out pulling the engine and trans and accomodate the frame clearance tubes and meet the x-pipe. Ideal no, but servicable. What I can't do is fit them on the DTS or Super Flow engine dynos.

Your Rampage just rules, I'm surprised more people haven't built them given how great it looks as you've done it.

All the headers I make I get coated at QC Coatings here in Mich... they have always
done me right.... hey, if you cant get the headers on and off with relative ease then
they really arent worth the headaches... so you do what ya gotta do.... thanks on
the Rampage.... I got the block back today so I'll have it ready for the dyno Tuesday...
I dont really care tooo much about the numbers BUT I am curious ... all I want is about
525-550 hp... just want to be able to run 10.0-10.2

[jcharliem]

...they spend countless hours on them looking for
that last couple of HP at any given condition...

According to our resident tech expert - TC - a couple of horsepower doesn't make a bit of difference in a 9 sec car. Therefore, based on his "theories" a couple of ponies would mean even less in a Pro Stock ride.

[TC]

According to our resident tech expert - TC - a couple of horsepower doesn't make a bit of difference in a 9 sec car. Therefore, based on his "theories" a couple of ponies would mean even less in a Pro Stock ride.

Just as an example using the Wallace Racing ET calculator a car weighing 3000lbs with 2003HP would run a 6.66, and a car weighing 3000lbs with 2011HP would still run a 6.66...... So that is an 8hp difference and it still produced the same ET's...... And in real life I would think that number would be higher......... So anyway ya 5HP isn't going to make one god damn difference at their ET/power levels.......

[dieselgeek]

it's a PERCENTAGE of power increase, not a fixed number. I guess whoever wrote the above post didn't include that before it was copied and pasted here. lol

[MR P-BODY]

According to our resident tech expert - TC - a couple of horsepower doesn't make a bit of difference in a 9 sec car. Therefore, based on his "theories" a couple of ponies would mean even less in a Pro Stock ride.

Being that I'm a bracket racer I dont really care if I didnt find the added HP from every
little bit.... hell I have the wrong cam in my car now but I do plan on having it re-ground
but my car is slow... its only 8.90s at 151

[TC]

it's a PERCENTAGE of power increase, not a fixed number. I guess whoever wrote the above post didn't include that before it was copied and pasted here. lol

Oh wow the google expert actually learned something..... Of course it is a percentage and as you go faster the power needed to go faster goes up........ But hey go ahead and tell me how 5hp in a ProStock is going to make a difference..........

[MR P-BODY]

Oh wow the google expert actually learned something..... Of course it is a percentage and as you go faster the power needed to go faster goes up........ But hey go ahead and tell me how 5hp in a ProStock is going to make a difference..........

If you dont think so, your kidding yourself..... forget that calculator