1 3/4" or 1 7/8" Headers??? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Josh@ARH · 03-18-2011, 09:19 AM

1 7/8 is the best all around header for the Camaro. It's not too big of a header for a bolt on car and it will benefit you more as you do more mods.

JANNETTYRACING · 03-18-2011, 09:51 AM

Quote:

Originally Posted by camaro2k10

Did a search on this subject but no results came back i know that the norm. is 1 7/8 however I've found several 1 3/4 that seem serviceable and have similar gains and was actually interested in borla headers until i found that they are 1 3/4 and it put question in my mind so I was wondering what you guys' opinion of headers were...keep in mind the only mods my car has planned for it are:
Already have Borla atak cat back system
Plan to have:
Headers
Vararam cold air intake
Texas speed performance vvt cam kit

So any recommendations on a size of header? not so much stuck on brand as much as the age old question does size really matter in this situation lol

This is a good read and will answer all of your questions and is where some of the info above came from.

http://www.camaro5.com/forums/showth...r+test+results

Along with this one

http://www.camaro5.com/forums/showth...r+test+results

IPS Brandon · 03-18-2011, 10:30 AM

1 3/4s long tubes have better torque curves from my experience, 1 7/8ths make more hp and are better suited for further upgrades (heads/cam/blower/ ect).

Regards

JANNETTYRACING · 03-18-2011, 10:35 AM

Quote:

Originally Posted by IPS Brandon

1 3/4s long tubes have better torque curves from my experience, 1 7/8ths make more hp and are better suited for further upgrades (heads/cam/blower/ ect).

Regards

Are you reading the same graphs we are, The lower of the three upper torque and hp graphs is from the 1 3/4 headers of

PQ · 03-18-2011, 10:54 AM

Mine are the Borla. No cats.

If 7 HP is all that's lost, and somw end torque is gained, I see no problem. However, I'm sure it'll change the more power you run through.

I've yet to see a bigger build using Borla. I'm about to find out. I'm guessing it's overstated as far as the difference going forward.

Larz29 · 03-18-2011, 11:05 AM

My take on it is 1 3/4 is fine. If I do any more mods other than headers and what I have now they will be minor, because I don't race (I just like the sound and a bit more response) so for me a few more ponies isn't anything to sweat.

PQ · 03-18-2011, 11:10 AM

Quote:

Originally Posted by JANNETTYRACING

Are you reading the same graphs we are, The lower of the three upper torque and hp graphs is from the 1 3/4 headers of

According to that graph, the 1 3/4 are producing 30+ less Tourque.

Seems kinda high. My torque right now is higher than my power. I'm boosted of course, but wow. 30+? That's a lot.

I just don't want to buy more headers. And won't.

caverman · 03-18-2011, 11:16 AM

My car pulled 411 rwhp and 412 rwtq with 1 3/4" KOOKS. That's only down about a few HP that what is norm for 1 7/8".

Now...I got a great deal on my because they were used. The extra $500-$600 wasn't really worth the extra money for me since I'm not trying to squeeze every HP I can and only plan to add a Cam at most some day down the road.

However, I'll say that if I were buying new I would've definately bought 1 7/8".

If you like the Borla and it fits your budget and you don't plan to do big upgrades then you'll be fine. If you're not stuck on Borla then you should probably consider the 1 7/8" in case you want to add stuff down the road. Plus...if for some reason you need to sell them, they'll sell much easier. Just my take.

JANNETTYRACING · 03-18-2011, 11:57 AM

Quote:

Originally Posted by PQ

According to that graph, the 1 3/4 are producing 30+ less Tourque.

Seems kinda high. My torque right now is higher than my power. I'm boosted of course, but wow. 30+? That's a lot.

I just don't want to buy more headers. And won't.

No the Lowest graph is the totally stock LS3

PQ · 03-18-2011, 12:06 PM

Quote:

Originally Posted by JANNETTYRACING

No the Lowest graph is the totally stock LS3

Sorry.

So how bout approach it from a different angle in this thread.

Why WOULD someone go with 1 3/4 headers? And why do they even make them like that for this car?

Mark Myles · 03-18-2011, 02:02 PM

....lol. This is getting good...

M

Larz29 · 03-18-2011, 03:37 PM

Honestly like I said a few hp isn't enough to sell me to a bigger header. I guess if someone was going to give me the 1 7/8" for the same price, then sure

I also didn't get kooks. I got a less expensive brand, which should do me fine. I realize there are a lot of people who race at the track, but it's not really my style, just sayin

I guess it comes down to personal preference.

PQ · 03-18-2011, 03:45 PM

True. But some people might get irritated when people tell them that their headers are not good headers. (or whatever the item discussed at the time)

And I've heard 'experts' say that the 1 3/4 are a killer on power. And you can't get 600 rwhp with 1 3/4 and not break something.

But I've also heard some say that anyting short of 3" exhaust will not be good for even 500rwhp, and some say it's not gonna hurt till near 650 rwhp.

Who knows. Unless you personally test them all, or someone does every set-up imaginable and post the results, I guess we'll never know.

briancb1 · 03-18-2011, 03:51 PM

Why does the torque and horsepower curve not meet at 5252 RPM on the STOCK pull like the rest of graphs?

Horsepower Formula: HP = (Torque x RPM)/5252

HP and TQ are equal at that RPM and should be located at the same point just like your other graphs, why is it off on the stock pull?

03-18-2011, 10:54 AM	#19
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,717 View My Garage	Mine are the Borla. No cats. If 7 HP is all that's lost, and somw end torque is gained, I see no problem. However, I'm sure it'll change the more power you run through. I've yet to see a bigger build using Borla. I'm about to find out. I'm guessing it's overstated as far as the difference going forward. __________________

03-18-2011, 11:16 AM	#22
caverman Drives: '69 SS Convertible Join Date: May 2009 Location: DFW, TX Posts: 7,111	My car pulled 411 rwhp and 412 rwtq with 1 3/4" KOOKS. That's only down about a few HP that what is norm for 1 7/8". Now...I got a great deal on my because they were used. The extra $500-$600 wasn't really worth the extra money for me since I'm not trying to squeeze every HP I can and only plan to add a Cam at most some day down the road. However, I'll say that if I were buying new I would've definately bought 1 7/8". If you like the Borla and it fits your budget and you don't plan to do big upgrades then you'll be fine. If you're not stuck on Borla then you should probably consider the 1 7/8" in case you want to add stuff down the road. Plus...if for some reason you need to sell them, they'll sell much easier. Just my take. __________________ *-2010 Camaro* 2SS \| M6 \| VR w/White Stripes \| 1 3/4" KOOKS - 3" Magnaflow \| LPE 3.91 gears \| ADM tuned \| Halltech w/ADM Scoop \| Spohn/BMR Trailing Arm/Toe Rod \| BC Coilovers\| Pedders FE4 ZL1 swaybars \| Cradle/Diff/Radius Rod bushings \| VMax TB \| Morimoto Projectors \| MGW shifter \| Red Calipers Build Journal

03-18-2011, 03:45 PM	#27
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,717 View My Garage	True. But some people might get irritated when people tell them that their headers are not good headers. (or whatever the item discussed at the time) And I've heard 'experts' say that the 1 3/4 are a killer on power. And you can't get 600 rwhp with 1 3/4 and not break something. But I've also heard some say that anyting short of 3" exhaust will not be good for even 500rwhp, and some say it's not gonna hurt till near 650 rwhp. Who knows. Unless you personally test them all, or someone does every set-up imaginable and post the results, I guess we'll never know. __________________

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03-18-2011, 09:19 AM	#15
Josh@ARH Drives: 2013 Corvette GS Join Date: Sep 2010 Location: NY Posts: 123	1 7/8 is the best all around header for the Camaro. It's not too big of a header for a bolt on car and it will benefit you more as you do more mods.

03-18-2011, 10:30 AM	#17
IPS Brandon Drives: 2010 Camaro SS black Join Date: Aug 2009 Location: Columbus Ohio Posts: 907	1 3/4s long tubes have better torque curves from my experience, 1 7/8ths make more hp and are better suited for further upgrades (heads/cam/blower/ ect). Regards

03-18-2011, 11:05 AM	#20
Larz29 Drives: 2010 camaro ss LS3 cyber grey Join Date: Aug 2010 Location: Madison,wi Posts: 226	My take on it is 1 3/4 is fine. If I do any more mods other than headers and what I have now they will be minor, because I don't race (I just like the sound and a bit more response) so for me a few more ponies isn't anything to sweat.

03-18-2011, 02:02 PM	#25
Mark Myles Drives: 2010 2SS/RS IBM / Silver Stripes Join Date: Mar 2010 Location: Northeast Michigan Posts: 601	....lol. This is getting good... M

03-18-2011, 03:37 PM	#26
Larz29 Drives: 2010 camaro ss LS3 cyber grey Join Date: Aug 2010 Location: Madison,wi Posts: 226	Honestly like I said a few hp isn't enough to sell me to a bigger header. I guess if someone was going to give me the 1 7/8" for the same price, then sure I also didn't get kooks. I got a less expensive brand, which should do me fine. I realize there are a lot of people who race at the track, but it's not really my style, just sayin I guess it comes down to personal preference.

03-18-2011, 03:51 PM	#28
briancb1 Drives: C6 Z06 Join Date: Nov 2010 Location: Houston TX Posts: 109	Why does the torque and horsepower curve not meet at 5252 RPM on the STOCK pull like the rest of graphs? Horsepower Formula: HP = (Torque x RPM)/5252 HP and TQ are equal at that RPM and should be located at the same point just like your other graphs, why is it off on the stock pull?