Let's talk headers :)

[Black_SS10]

I posted a cam thread before and thought about it and found I may be getting a head of myself. I'm looking at getting headers first, an upgrade I said in that thread I would get. I can install the headers myself with hopefully no problems. OK....so upon researching headers for days..I still can't find a answer to my question . Maybe my interweb skills are lacking lol. I am trying to find the best headers for the buck..aren't we all?? I know most people will say 1 7/8 LT are the best. My question is are 1 7/8 LT or 1 7/8 tri Y the best headers? Now keep in mind this is for a bolt on and at max cam/ head work Camaro. It will be mainly street driven and see the occasional track...guessing street/strip?? I've been looking at TSP and DT as budget header manufacturers. Oh, also will these bolt onto the Flowmaster outlaw catback?

[62nalide]

Tri Ys are over hyped

Best bang for the buck are the eBay headers and TSP 1 7/8s

IMO the LG Motorsports are sweet headers that's just my personal opinion plus I run them and had great luck

[MightymouseSS]

Most 1 7/8 LT headers are going to perform very similar. Might be a few hp (2/3) from brand to brand. Pick what best fits your budget as long as there stainless steel you should be fine. Most ppl will recommend whatever there running. As far as tri y I haven't seen any where they significantly outperform a regular 1 7/8.

[Black_SS10]

Thanks for the replys!!

Yes I haven't found anything that really proves one is better than the other. Most people agree 1 7/8 LT headers are the "best" all around for a bolt on street car.

With saying that I will be ordering the TSP 1 7/8 LT. Now do these still have to have a "dimple" put in them? I know some people did and others didn't. Just a bad batch or install?

[MightymouseSS]

Ive heard the dimple mostly on the 2" tsp headers.

[Magz_rule]

+1 on TSP headers. Love mine

[Black_SS10]

Originally Posted by Magz_rule

+1 on TSP headers. Love mine

2' or 1 7/8? Did you have to put the "dimple" in yours?

[Camaro Dude]

Originally Posted by MightymouseSS

..... Most ppl will recommend whatever there running.....

ding ding ding!!! We have a winner here!

[ToddB]

2" headers preform the best at all rpms. Its been tested and proven. Also my 2" headers fit perfect with room to spare.

[Camaro Dude]

Originally Posted by ToddB

2" headers preform the best at all rpms. Its been tested and proven. Also my 2" headers fit perfect with room to spare.

http://www.camaro5.com/forums/showthread.php?t=63640

Gains are there, but not worth the hassle if you aren't going FI.

Originally Posted by JANNETTYRACING

First let me say Thanks to Nick American Racing Headers for building us all 3 size headers, cat converters and test pipes, and related hardware.

Just to keep things Fair I Purchased these Headers for the Test.

Our Test Car is none other than, Bigdogs LS3 Camaro used in our CAI test.
This Car is 100% Stock other than the Headers installed for the Testing.

Stock Peak Numbers 373 RWHP 378 RWTQ
Stock Average Numbers I will post tomorow Forgot to print them.

1.75 long tube headers w high flow cats Peak 401.1 HP 403.8 TQ
1.75 long tube headers w high flow cats Average 281.2 HP 363.9 TQ

1.875 long tube headers w high flow cats Peak 406.8 HP 407.5 TQ
1.875 long tube headers w high flow cats Average 283.7 HP 366.6 TQ

2.0 long tube headers w high flow cats Peak 411.7 HP 408.9 TQ
2.0 long tube headers w high flow cats Average 288.1 HP 368.1 TQ

The 1 3/4 Headers did Surprisingly well.
The 1 7/8 Headers IMO are the best all around header.
The 2.0 Headers are neck and neck with the 1 7/8 but Slightly stronger from 5000 to 6300

In an all out racing application they would be worth the extra investment.

So Now it is up to you to choose what best fits your application.

Anybody want to buy some good used Headers

Some interesting tid bits of informations, the A/F ratios were unaffected by the headers or the header size changes, Ranged from 11.7 -12.3 through the pull, the fuel trims also remained constant from size to size.

We also Tested NO CATS and Guess What NO HP GAIN COULD BE MEASURED, ok I lied, 1 HP somwhere in the middle of the run, I think I farted near the air filter

All Kidding aside these cats flow like straight pipe.

And the Headers with High flow cats, Sound with the Factory Exhaust, Music to my Ears.

Here are the Graphs overlayed.

[Black_SS10]

Originally Posted by ToddB

2" headers preform the best at all rpms. Its been tested and proven. Also my 2" headers fit perfect with room to spare.

The research I did shows that 1 7/8" and 2" headers performed basically the same until around 5K rpms when the 2" pulled ahead by a few hp and tq. Now upon reading I discovered that the 2" may be better for FI? Correct me if I'm wrong.

[Black_SS10]

And I posted too late..Camaro dude beat me to the punch. lol

[Camaro Dude]

Originally Posted by Black_SS10

And I posted too late..Camaro dude beat me to the punch. lol

LOL

[ToddB]

There was no hassle with mine and they wear the same price as 1 7/8 so why not?