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

Flash-SS · 05-19-2012, 11:18 PM

Are 1 3/4" long tube headers enough for an N/A, lightly modded car? I wouldn't imagine there would be an appreciable difference unless boost was involved. Anybody had both for a comparison?

Bo White · 05-19-2012, 11:30 PM

Its on a Vette(not mine) but it might give ya an idea:
http://ls1tech.com/forums/generation...xperience.html

Flash-SS · 05-19-2012, 11:50 PM

Quote:

Originally Posted by Bo White

Its on a Vette(not mine) but it might give ya an idea:
http://ls1tech.com/forums/generation...xperience.html

Interesting read, and pretty much what I thought. For the significant price difference between the two, think I will go with 1 3/4, especially if they make better mid-range power. Thanks for the link!

axis · 05-20-2012, 01:17 AM

Ted did back to back to back runs using Dynatech headers in 1 3/4, 1 7/8, and 2in. The graph was almost identical until the peak, where each size bigger produced a few HP more. It wasn't massive but a few HP with each step up. The big thing it showed was no loss of hp or tq in the lower or midrange for any size.

Bo White · 05-20-2012, 01:39 AM

Got a link to it?

SGOS252382 · 05-20-2012, 08:30 AM

Here you go.
http://www.camaro5.com/forums/showth...ht=Header+test

Bay Area SS · 05-20-2012, 11:18 AM

Havent header shopped in a while but personally I would spend the extra cash on the bigger tubes, they will make a tad bit more power, and it will give more room to support bigger mods in the future.

Crime2 · 05-20-2012, 05:17 PM

Quote:

Originally Posted by Bay Area SS

Havent header shopped in a while but personally I would spend the extra cash on the bigger tubes, they will make a tad bit more power, and it will give more room to support bigger mods in the future.

+1

Bo White · 05-20-2012, 08:11 PM

Quote:

Originally Posted by SGOS252382

Here you go.
http://www.camaro5.com/forums/showth...ht=Header+test

Thanx.

geaux_tigerss · 05-20-2012, 09:29 PM

Where are you seeing a big price difference? Most are within $60 or so of each other.

Bo White · 05-20-2012, 09:46 PM

I think he is looking at the cheapest 1 3/4 header compared to the cheapest 1 7/8 header, brand name irrelivent.

Avalnch · 05-20-2012, 10:24 PM

Quote:

Originally Posted by axis

Ted did back to back to back runs using Dynatech headers in 1 3/4, 1 7/8, and 2in. The graph was almost identical until the peak, where each size bigger produced a few HP more. It wasn't massive but a few HP with each step up. The big thing it showed was no loss of hp or tq in the lower or midrange for any size.

I'm the one who bought Ted's 1-3/4" ARH headers from this test. I've always known that the smaller headers would make more mid-range power and it does!

Flash-SS · 05-21-2012, 12:08 AM

Quote:

Originally Posted by Bo White

I think he is looking at the cheapest 1 3/4 header compared to the cheapest 1 7/8 header, brand name irrelivent.

This. I am actually looking at the Pacesetter 1 3/4" LT's. My car is never going to be FI or really heavily modded (pretty much just bolt on's) and will never go down a track, so a set of full length headers for roughly $250 (on Amazon, all day long) seemed too good to be true. I have been blowing up the forums trying to find a ligit reason to spend more, and so far haven't come up with anything. Apparently they fit perfectly and put up comparable numbers, they just don't stay pretty for long. I can deal with that...

axis · 05-21-2012, 12:30 AM

Quote:

Originally Posted by Flash-SS

This. I am actually looking at the Pacesetter 1 3/4" LT's. My car is never going to be FI or really heavily modded (pretty much just bolt on's) and will never go down a track, so a set of full length headers for roughly $250 (on Amazon, all day long) seemed too good to be true. I have been blowing up the forums trying to find a ligit reason to spend more, and so far haven't come up with anything. Apparently they fit perfectly and put up comparable numbers, they just don't stay pretty for long. I can deal with that...

If it were just the fact that they are won't stay pretty as long, there wouldn't be an issue. The fact that they are mild steel, should be what you're looking at. A good set of headers that will last longer than your car will be made of 304SS. You also need to look at what you get in that $250 price tag. The one I see on amazon for $250 is the headers ONLY. You'll have to buy or have a muffler shop manufacture mid pipes and you'll have to either buy O2 extentions or extend your O2 wires yourself. There's a reason they are that cheap.

05-19-2012, 11:18 PM	#1
Flash-SS Drives: 2010 2SS Grey/silver stripes Join Date: Feb 2010 Location: Navarre, FL Posts: 142	1 3/4" vs. 1 7/8"? Are 1 3/4" long tube headers enough for an N/A, lightly modded car? I wouldn't imagine there would be an appreciable difference unless boost was involved. Anybody had both for a comparison? __________________ 2010 2SS LS3/ Custom painted gunmetal grey with "ghost" silver stripes / Roto-Fab CAI / Skip shift eleminator / Barton short throw shifter / 20% tint / muffler delete / ******** stealth enclosure with JL Audio 8W7 powered by a JL Audio J2 500.1

05-19-2012, 11:30 PM	#2
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,018	Its on a Vette(not mine) but it might give ya an idea: http://ls1tech.com/forums/generation...xperience.html __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

05-20-2012, 01:17 AM	#4
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	Ted did back to back to back runs using Dynatech headers in 1 3/4, 1 7/8, and 2in. The graph was almost identical until the peak, where each size bigger produced a few HP more. It wasn't massive but a few HP with each step up. The big thing it showed was no loss of hp or tq in the lower or midrange for any size. __________________ 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.

05-20-2012, 01:39 AM	#5
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,018	Got a link to it? __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

05-20-2012, 11:18 AM	#7
Bay Area SS Drives: 2010 rs/2ss Join Date: Mar 2011 Location: ca bay area Posts: 669 View My Garage	Havent header shopped in a while but personally I would spend the extra cash on the bigger tubes, they will make a tad bit more power, and it will give more room to support bigger mods in the future. __________________ 1 7/8 long tubes full XS Power exhaust no cats, Rotofab CAI, PowderPro Ported TB, Hurst short throw, TSP 231 236 cam, tuned by Synergy Motorsports 454RWHP, 440 RWTQ. More to come!

05-20-2012, 08:30 AM	#6
SGOS252382 Drives: 2010 Camaro 2SS/RS Join Date: Mar 2008 Location: S.W. Florida Posts: 6,294	Here you go. http://www.camaro5.com/forums/showth...ht=Header+test

05-20-2012, 09:29 PM	#10
geaux_tigerss Drives: 2019 GMC Sierra 1500 AT4 Join Date: Nov 2011 Location: Orange, TX Posts: 740	Where are you seeing a big price difference? Most are within $60 or so of each other. __________________ 2019 GMC Sierra 1500 AT4 Summit White 6" Lift, 37x13.50R24's

05-20-2012, 09:46 PM	#11
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,018	I think he is looking at the cheapest 1 3/4 header compared to the cheapest 1 7/8 header, brand name irrelivent. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X