ARP HEADERS now i'm confused
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Teching In
Joined: Nov 2005
Posts: 29
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ARP HEADERS now i'm confused My car is a 2001 SS camaro 6-speed stock.Not going to do any other mods,
heads cams etc.
I am going to purchase arp headers with their the catted y-pipe.
Does anyone have any dyno sheets or info on 1 3/4 vs 1 7/8?
All set to get 1 3/4 with dyno tune, when I was told that there have been comparison tests,
and even on the stock ls1 like mine better numbers could be gotten with the
1 7/8. Now I am looking for some input backed by facts.
Also what is the feeling on coated stainless steel headers vs non coated,
and its effect on a dyno tune?
heads cams etc.
I am going to purchase arp headers with their the catted y-pipe.
Does anyone have any dyno sheets or info on 1 3/4 vs 1 7/8?
All set to get 1 3/4 with dyno tune, when I was told that there have been comparison tests,
and even on the stock ls1 like mine better numbers could be gotten with the
1 7/8. Now I am looking for some input backed by facts.
Also what is the feeling on coated stainless steel headers vs non coated,
and its effect on a dyno tune?
There are quite a few threads on this and yes from what I've researched its stupid not to go 1 7/8. They don't lose power down low (from graphs I've seen) and the gain exponentially more vs 1 3/4 as you mod (i know you say you're not going to, but... even stock they made more power). Coating will just help keep heat in and I am sure its arguable about "scavenging" and similar from the heat in the runners, but essentially on a dynograph I couldn't imagine horsepower being gained from having them coated. Keeping heat down in an engine bay is a great thing however since other aspects of the tune can be affected by AIT and similar.
Yeah its an interesting concept why bigger wouldn't be better **fitment obviously comes into play when you get too large** when it comes to getting exhaust out of the car (if tuned properly) or how you could lose power from runners being too large.
As previously posted:
I guess I don't get why anyone would go bigger than 1 3/4? For this slightly beefed up '01 Camaro with HP/TQ: 1300/800, 1 3/4 was just FINE!:
http://www.gmhightechperformance.com...o_pistons.html
I guess I don't get why anyone would go bigger than 1 3/4? For this slightly beefed up '01 Camaro with HP/TQ: 1300/800, 1 3/4 was just FINE!:
http://www.gmhightechperformance.com...o_pistons.html
Post your "PROOF"! Dyno pictures please, comparing BOTH. 
There are quite a few threads on this and yes from what I've researched its stupid not to go 1 7/8. They don't lose power down low (from graphs I've seen) and the gain exponentially more vs 1 3/4 as you mod (i know you say you're not going to, but... even stock they made more power).
