1 7/8 vs. 1 3/4 LT Headers - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SSinthedesert · 04-03-2010, 12:32 PM

I'm having a problem decidine between 1 7/8 and the 1 3/4 LT headers. Does anyone have dyno sheets with the same setup in the car, only changing the size of the headers? Please no "I know a guy who knows a guy" stories. I want to see actual proof. I just have a hard time believing that an 1/8 of an inch warrants the $300-$400 dealers are charging. Show me proof and then I'll believe. Also, I'm sure the size of the cam will make a difference. Will putting a bigger cam make that much of a difference?

barrylnv · 04-03-2010, 12:45 PM

Here's a great test on header sizes from the same manufacturer done recently by a respected tuner on this site: http://www.camaro5.com/forums/showth...ght=ted+header

Yes, cam will definitely make a big change. For that, here's a good article: http://www.gmhightechperformance.com...son/index.html

Most of those are pretty radical cams for street driving, though it all depends on your reference. Your best bet is to call 2-3 tuners you see on this site, tell them your current configuration, your goals, what you're willing to spend, etc. and they'll help you work up a configuration including cam that'll get you there. It's all about what you want and what you're willing to spend and that pretty well defines the final configuration.

Apex Motorsports · 04-03-2010, 01:16 PM

Whether it's worth it or not totally depends on two things:

1) What are your plans for the car?

2) What is your budget for carrying out those plans?

axis · 04-03-2010, 05:05 PM

Jannetty showed that the biggest LT's available right now, 2in, showed the most gains. This was throughout the entire bandwidth. The price difference is totally what your budget can afford.

Russell James · 04-03-2010, 07:06 PM

The 1 7/8s will work perfect for you, now and if you add a cam. I have 1 7/8s ARH on mine and it runs and sounds incredible.

Darth_Emma · 04-03-2010, 07:21 PM

I just went through reading and asking tons of questions about headers. Get the 1 7/8! I just ordered my Kooks 1 7/8" LT catted headers a week ago.

Bell040 · 04-03-2010, 09:44 PM

I got the 2 inchers and they are awesome.

Supercharged SS · 04-03-2010, 10:16 PM

Just some food for thought.... I just ran a 10.99 @ 125 in my L99 and I have the Kooks 1 3/4 headers. The car was also built by Jannetty Racing. So any choice you make will be a good one. Gd Luck!

04-03-2010, 12:32 PM	#1
SSinthedesert Drives: 2010 Imperial Blue SS Join Date: Feb 2010 Location: New Mexico Posts: 50	1 7/8 vs. 1 3/4 LT Headers I'm having a problem decidine between 1 7/8 and the 1 3/4 LT headers. Does anyone have dyno sheets with the same setup in the car, only changing the size of the headers? Please no "I know a guy who knows a guy" stories. I want to see actual proof. I just have a hard time believing that an 1/8 of an inch warrants the $300-$400 dealers are charging. Show me proof and then I'll believe. Also, I'm sure the size of the cam will make a difference. Will putting a bigger cam make that much of a difference?

04-03-2010, 12:45 PM	#2
barrylnv Drives: 2010 2SS IMB LS3/M6 Join Date: Jul 2009 Location: Reno, NV Posts: 137	Here's a great test on header sizes from the same manufacturer done recently by a respected tuner on this site: http://www.camaro5.com/forums/showth...ght=ted+header Yes, cam will definitely make a big change. For that, here's a good article: http://www.gmhightechperformance.com...son/index.html Most of those are pretty radical cams for street driving, though it all depends on your reference. Your best bet is to call 2-3 tuners you see on this site, tell them your current configuration, your goals, what you're willing to spend, etc. and they'll help you work up a configuration including cam that'll get you there. It's all about what you want and what you're willing to spend and that pretty well defines the final configuration. __________________ 2010 2SS LS3/M6 Imperial Blue 650HP LPE Package - 576.3 RWHP, 91-tune 4.10 Richmond Gears ZR1 Clutch / LPE Flywheel LPE IBM Coil Covers Thorley Shorty Headers Borla 140280 Cat-back ADM Boost Gauge MTI Shifter Hotchkis Sway Bars LPE Floor Mats SRP Heel-Toe Pedals

04-03-2010, 01:16 PM	#3
Apex Motorsports Drives: 2000 Camaro SS Join Date: Feb 2010 Location: Louisville, Ky. Posts: 25,165	Whether it's worth it or not totally depends on two things: 1) What are your plans for the car? 2) What is your budget for carrying out those plans? Last edited by Apex Motorsports; 04-03-2010 at 03:00 PM.

04-03-2010, 05:05 PM	#4
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	Jannetty showed that the biggest LT's available right now, 2in, showed the most gains. This was throughout the entire bandwidth. The price difference is totally what your budget can afford. __________________ 2010 Black 2SS/RS A6 Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train.

04-03-2010, 09:44 PM	#7
Bell040 Drives: 2SS/RS - Black - GFX Join Date: Nov 2008 Location: B'ham, Alabama Posts: 2,458 View My Garage	I got the 2 inchers and they are awesome. __________________ Ordered: 10-13-08 Built: 3-30-09 (#1691) Recieved: 6-12-09 Blacked out, Cammed (Lunati Voodoo 233/245, .578/.598 @114°, +4°), ARH LTs, VR OTR CAI, Cutouts, and lots of other fun mods.

04-03-2010, 07:06 PM	#5
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	The 1 7/8s will work perfect for you, now and if you add a cam. I have 1 7/8s ARH on mine and it runs and sounds incredible.

04-03-2010, 07:21 PM	#6
Darth_Emma Psssssssssshhhhhhhhhhhhh! Drives: under contruction Join Date: Nov 2009 Location: Marysville, Ohio Posts: 12,996 View My Garage	I just went through reading and asking tons of questions about headers. Get the 1 7/8! I just ordered my Kooks 1 7/8" LT catted headers a week ago.

04-03-2010, 10:16 PM	#8
Supercharged SS Account Suspended Drives: 2010 Camaro Join Date: Feb 2010 Location: Sandy Hook, CT Posts: 11,926	Just some food for thought.... I just ran a 10.99 @ 125 in my L99 and I have the Kooks 1 3/4 headers. The car was also built by Jannetty Racing. So any choice you make will be a good one. Gd Luck!

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