Question about header o_o

[Baal]

Ive seen lots of ppl say a short/medium tube works well on low-end torque and a long tube makes great power on high rpms.

Then i saw a couple of ppl saying that a long tube will be better in ANY rpm range than a short or medium tube.

So whats the truth, im puzzled because i NEED low-end, and im not sure what to look for.

[Jeff]

Ive seen lots of ppl say a short/medium tube works well on low-end torque and a long tube makes great power on high rpms.

Then i saw a couple of ppl saying that a long tube will be better in ANY rpm range than a short or medium tube.

So whats the truth, im puzzled because i NEED low-end, and im not sure what to look for.

I have searched through Neons.org on this very topic. Seems that there are two main messages out there: 1) Long tube headers have peak gains at higher rpms, and 2) Long tube headers don't necessarily lose low end torque over stock.

I don't know either of these to be true from experience, I have only read this. There was one thread where guys were posting dyno graphs showing that various long tubes (and I suppose all of them are not created equally) might not gain on the low end, but they didn't lose over stock.

I will be curious to hear responses to your question from people who have installed headers.

[GaryHowell]

Ive seen lots of ppl say a short/medium tube works well on low-end torque and a long tube makes great power on high rpms.

Then i saw a couple of ppl saying that a long tube will be better in ANY rpm range than a short or medium tube.

So whats the truth, im puzzled because i NEED low-end, and im not sure what to look for.

With what your doing with you car. The long tube will be the best choice.

[Baal]

Ive seen lots of ppl say a short/medium tube works well on low-end torque and a long tube makes great power on high rpms.

Then i saw a couple of ppl saying that a long tube will be better in ANY rpm range than a short or medium tube.

So whats the truth, im puzzled because i NEED low-end, and im not sure what to look for.

With what your doing with you car. The long tube will be the best choice.

I know it goes "along" with my other mods, but its for asphalt rally, so i need TORQUE and a wider power band i know the 14 isnt good at that thats why i want the header to be focused on what i want.

So wich of the theories is true gary, LTH is better at all rpm-ranges or it will lose low end.

[GaryHowell]

Ive seen lots of ppl say a short/medium tube works well on low-end torque and a long tube makes great power on high rpms.

Then i saw a couple of ppl saying that a long tube will be better in ANY rpm range than a short or medium tube.

So whats the truth, im puzzled because i NEED low-end, and im not sure what to look for.

With what your doing with you car. The long tube will be the best choice.

I know it goes "along" with my other mods, but its for asphalt rally, so i need TORQUE and a wider power band i know the 14 isnt good at that thats why i want the header to be focused on what i want.

So wich of the theories is true gary, LTH is better at all rpm-ranges or it will lose low end.

As long as they have been making exhaust manifolds and headers it has been known that short tubes are for off idle, medium tubes for midrange, and long for top end. Most racing occurs from mid to top.

[solodogg]

that theory works to an extent. Honestly, primary size and collector type plays more of a role in the power band than the actual length of the header. the ideal header should work as a scavenger, and actually help suck the air out of the cylinder head. If you make one to the perfect length, with the perfect size, and the perfect collector to allow this...please let me know you can take a large tube shorty header and compare it to a small tube medium header...and get virtually the same results.

Typically, a long tube header will have larger primaries for this exact reason.

[Baal]

mmm so if i want powe lets say at 4,500rpm LTH or MTH :s

Lol sorry to ask again but your replies are kinda not conclusive

[solodogg]

that's because you could do it with a variety of headers. long tube vs. short tube doesn't matter nearly as much as the tuning of the header primaries...just like i stated before. a short tube can be tuned to make good power at 3000 rpm or 6000rpm.

[98WhiteNeonR/T]

that theory works to an extent. Honestly, primary size and collector type plays more of a role in the power band than the actual length of the header. .

I beg to differ. I have run 2 of Jason Hensleys Long tube headers, His firt run AND his step tube one. I saw NO Differance in the two what so ever. MAYBE the car REVED a bit faster. I just replaced one on our other car with Garys Long Tube. Seems to pull the same. The size of the collector IS goin to make a diff. You are righ there. BUT that is common sence. Its the same as to suck a golf ball through a Garen hose then same said ball though a 3 inch piec of hose. The results, Bigger opening less restriction.

[solodogg]

think about this one.... suck your golf ball through a 2" diameter 6" long pipe...then suck it through a 1 1/2" diameter 12" long pipe..about the same effort is going to be needed, since they have close to the same volume. length makes no difference, volume makes all the difference in the world. as does tuning frequency...which is where you play with tubing size and length.

btw...i'm sorry...but your ass dyno isn't going to be very accurate. Please post proof of no difference...and i'll dig up the dnyo sheets.

[98WhiteNeonR/T]

I din't gain anything or lose anything in my 1/4 16.6 both runs on our atx cars

[solodogg]

so your driving skill became a measure of power?

[Baal]

so your driving skill became a measure of power?

but aparently your word does.

[98WhiteNeonR/T]

so your driving skill became a measure of power?

Skill has nothing to do with it. You were saying that Volume and TUBE Diameter and Primary length had to to with hp gains. I stated. That I ran both a step tube header and a NORMAL Long tube on my car and saw no gains in the 1/4 mile. Thus proving that your theroy has holes in it... WOW I was hoping that you were smarter than that. That one was pretty cut and dry and you still try to over analize it to try and make it somthing you want to be true. SORRY.....


And who are you calling paco? Me or BAAL? If its me that is fine. I will chalk it up to immaturety. BAAL is from MEXICO if I don't recall. So now you are a raceist against Mexican?

[Edgel]

98 white neon is right about that solodogg his driving skill wouldn't effect the outcome of the results since he was the one driving both times so i beleive he would be right in the sense that your theory has holes in it.

If it was me i would most likely go with a long tube header to compliant everything else your car has done with it. But thats my veiw on the matter at hand.