What Should I Do!?!?!
Oh yeah he also said i should get any header uncoated...he said they flow worse coated and that when tuned you cant really get all of the power out of them...this guy has his own shop and mainly tunes corvettes...he said he has tuned over 2000 LSX's...anyway the reason why he says i should get them uncoated its becuase the heat may cause detonation...in his experience with coated headers he has had to tune for detonation and thus cannot tune to get the most power out of the headers...any thoughts on this?? Any help would be greatly appreciated.
And one last question...I have been looking into electric cutouts and i think i might just order some soon...with my setup of most likely either Pacesetter or Hooker LTs, ORY and Magnaflow catback is it worth it?? i though about welding 2 electric cutouts to the ORY right after they connect to the LTs...what do you guys think?? would i see any difference in power and/or acceleration??
One of the biggest things I look for on header design is the type of collectors they use. Most of the normal header company's that have been in the business for years, like to cut corners and use the cheaper style lower flow collectors... Basically all the tubes are cut straight off at the end of the primaries before going into the collector. I'm not a fan of those because the air has no direction after the primaries, and can go any which way it wants. Nicer headers will have a "scavenger spike" inside the collector between the 4 primaries. This helps direct the air flow to the center of the collector... getting it out of the header with the least amount of restriction possible.
This is the kind of collector you'll see on a good quality header like American Racing, or LG. It's a merge collector that shrinks down right after the primaries then goes back up to the size of your exhaust, essentially speeding up the air flow in the exhaust, and in turn causing your car to make more power.
This is just my experience from what I've seen in making headers. Another thing we could go into is coatings, and how much I dislike them on headers Ceramic coated headers always seem to cause detonation. Why? Well everybody jumps on this bandwagon of wanting to keep underhood temps down. Which is great, I love it, whatever you can do to keep underhood temps down is going to help make the motor produce more power. But what we're doing by ceramic coating the headers is we are locking that heat inside the exhaust... Not allowing it to dissipate... This heat now acts as an agent in producing detonation. Almost every car I've ever tuned that had ceramic coated headers, was not able to take as much ignition timing as a car with uncoated stainless steel headers. So the power was greatly reduced because instead of tuning for all out power, I had to tune for detonation. Extra fuel, and less timing... Things that have a great effect on what kinds numbers your car will put down on the dyno, and at the track.
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One of the biggest things I look for on header design is the type of collectors they use. Most of the normal header company's that have been in the business for years, like to cut corners and use the cheaper style lower flow collectors... Basically all the tubes are cut straight off at the end of the primaries before going into the collector. I'm not a fan of those because the air has no direction after the primaries, and can go any which way it wants. Nicer headers will have a "scavenger spike" inside the collector between the 4 primaries. This helps direct the air flow to the center of the collector... getting it out of the header with the least amount of restriction possible.
This is the kind of collector you'll see on a good quality header like American Racing, or LG. It's a merge collector that shrinks down right after the primaries then goes back up to the size of your exhaust, essentially speeding up the air flow in the exhaust, and in turn causing your car to make more power.
This is just my experience from what I've seen in making headers. Another thing we could go into is coatings, and how much I dislike them on headers Ceramic coated headers always seem to cause detonation. Why? Well everybody jumps on this bandwagon of wanting to keep underhood temps down. Which is great, I love it, whatever you can do to keep underhood temps down is going to help make the motor produce more power. But what we're doing by ceramic coating the headers is we are locking that heat inside the exhaust... Not allowing it to dissipate... This heat now acts as an agent in producing detonation. Almost every car I've ever tuned that had ceramic coated headers, was not able to take as much ignition timing as a car with uncoated stainless steel headers. So the power was greatly reduced because instead of tuning for all out power, I had to tune for detonation. Extra fuel, and less timing... Things that have a great effect on what kinds numbers your car will put down on the dyno, and at the track.
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However, if you don't like my advice (which I expect you won't
However, if you don't like my advice (which I expect you won't
Last edited by ChocoTaco369; Sep 20, 2007 at 07:34 PM.
https://ls1tech.com/forums/showthrea...ight=stainless
black2002ws6 is a sponsor and sells both the y-pipe and race version of the headers for $550 SHIPPED. They're VERY NICE for the money, ABOVE AND BEYOND the quality of Pacesetters. They're stainless and will last a lifetime assuming the welds hold up. This is the route I'd go if money is tight.
However, it's also important to note that MPH Motorsports is running a sale on QTP headers. QTP's are one of the best if not the best header on the market (I run them), and they're on sale for $685. Now, this is a very good deal, but it's a lot more money than what you alloted to spend, plus their y-pipe doesn't fit well and a custom y-pipe is really necessary IMO.
In case you decide to spring for QTP's, here's the link:
https://ls1tech.com/forums/sponsor-sales-specials/780773-quick-time-performance-headers-y-pipe-sale.html
If not, I strongly recommend the XS over the Pacesetters since the quality is substantially higher for about the same price.
I didn't want to sound like a jerk or anything with my "financial advice" up top



