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Sweet! Good job Nitrous. Just wish you would have done this about 6 months ago. Maybe while they're listening to you, you can get them to change their gayass collectors. Hell while your at it get em to just go ahead & make some longtubes. :smile:
Ya, the collectors will be a pain in the butt to change gaskets due to the bolt to header clearance I made sure I put all of the nuts facing towards the ground to make things easier.
Just form yourself a large tube and weld it to the flange instead of using the collector. Then you can make them like a long tube. I wonder if that would really work since the exhaust gases would already be combined. A large tube where the stock flange is, down from there with a 4" tube like it were a standard long tube exhaust header and then to a standard reducer flange.... I wonder what that would do to the feel of the exhaust.
That would be pretty easy. I think it would act as a long tube header.
anything from a 3.25" or larger pipe would provide more flow area than four 1-5/8" diameter exhaust tubes.
I agree. I think they built the flanges for flow characteristics. All of the tubes go into a 5" area that swedges down to a 2 1/2" pipe. Too bad it has the 02 bung in it already, if it didn't I would get mark to bump it up to a minimum of 3" I'm running 2 1/2" exhaust now but I'd replace it with 3" if that were the case. Right now anything larger than the 2 1/2" flange pipe wouldn't help me out since the 2 1/2" exhaust would restrict it. I guess we could always install cutouts. :duh:
<div class='quotetop'>QUOTE(NITROUS @ Apr 15 2006, 09:52 PM) [snapback]50177[/snapback]</div>How do you figure they built them for flow characteristics? The collecters reduce down to 2 1/2" so abruptly I can't see how they could possibly flow well. Sorry but I hate these headers. The only reason I'm runnin em is they're the only header available & I hate manifolds even more. BTW they sell collecters without bungs (or buns as S&P calls them). I thought about cutting the collecter off just before it necked down and having the exhaust shop weld on some 4" pipe or so & then reduce it down to my current exhaust. Might as well have them weld the collecters to the header while they're at it, so I wouldn't have to worry about any more leaks. My driver side coll. is leaking now and driving me crazy. I can't get the bolts tight enough with the header installed to keep it from blowing out the gasket. They're welded to the exhaust so I will have to cut them off and have them rewelded. :tantrum: Did I mention that I hate these headers?Quote:
I agree. I think they built the flanges for flow characteristics. All of the tubes go into a 5" area that swedges down to a 2 1/2" pipe. Too bad it has the 02 bung in it already, if it didn't I would get mark to bump it up to a minimum of 3" I'm running 2 1/2" exhaust now but I'd replace it with 3" if that were the case. Right now anything larger than the 2 1/2" flange pipe wouldn't help me out since the 2 1/2" exhaust would restrict it. I guess we could always install cutouts. :duh:
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LMAO!!! I think they have better flow than the shorties. JMHO Let me explain myself, I should have done that in my previous post. If you took this design, bumped the collector up to 3" to 3 1/2" and had the collector welded into it and not bolted I think the flow design would work. I'm supposed to be getting the dyno papers from these headers which are supposed to increase HP by 20. I agree, they could have made a long tube and eliminated the mid length but Danny said they didn't have a jig jet since they use pre bent tubing. The reason they left the header like this is because your average joe isn't gonna put 3" or larger exhaust on his truck. He's gonna stick with the stock 1 5/8". What size exhaust are you running? 3" or larger and dumping it in front of the rear axle? If not, a different header isn't gonna help out that much.
Hey motoxlifer, did you go by the header break in procedure? I'm sure you did but I thought I'd ask.
Ummm what header break in procedure? I guess I missed that part. What is it? I'm runnin 2 1/2" exhaust dumped in front of the axle. What do you mean the average joe is going to stick with the stock 1 5/8"? Is stock exhaust tubing 1 5/8"? I thought our primary tubes were 1 5/8". I did some reading on exhaust sizes and from what it said with my motor & mods it would be a waste of time & money to run 3" pipe. I like the looks of these headers & I'm sure they make some extra power. I'm just pissed off at em because of the problems I've had with them.
I was pretty tired last night I believe the stock exhaust tubing is 1 7/8. Nevertheless, it's way too small. Ya, they have a break in procedure where you make a short exhaust run and then tighten everything back up before you drive it. I'll have to post what it says. It was really simple. It also tells what to wash the coating with. I hear what your saying about the headers though, they'll just have to get us by until we can find something else.