Just bought eBay OBX headers

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Jul 11, 2008 | 06:09 PM

#81

03vettemaniac

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From: Valencia CA

Everything that comes with the OBX header system (dog not included)

http://i247.photobucket.com/albums/g...u/IMG_1941.jpg
Small ting in right header from shipping

http://i247.photobucket.com/albums/g...u/IMG_1945.jpg
X pipe

http://i247.photobucket.com/albums/g...u/IMG_1946.jpg
Straight pipes and resonators

http://i247.photobucket.com/albums/g...u/IMG_1949.jpg
Weld Quality

http://i247.photobucket.com/albums/g...u/IMG_1951.jpg
Quality Controll Stamp (will come off after a few runs)

"OBX R"

http://i247.photobucket.com/albums/g...u/IMG_1953.jpg
Dent in straight pipe from shipping (was fixed for $5 at muffler shop)

http://i247.photobucket.com/albums/g...u/IMG_1954.jpg
Another view of the dent

Jul 11, 2008 | 06:15 PM

#82

03vettemaniac

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From: Valencia CA

http://i247.photobucket.com/albums/g...u/IMG_1956.jpg
Pic time 12:44

http://i247.photobucket.com/albums/g...u/IMG_1958.jpg
Pic time 12:45

http://i247.photobucket.com/albums/g...u/IMG_1959.jpg
Pic time 12:49

http://i247.photobucket.com/albums/g...IMG_1961-1.jpg
Pic time 12:53

http://i247.photobucket.com/albums/g...u/IMG_1963.jpg
Pic time 1:10

http://i247.photobucket.com/albums/g...u/IMG_1965.jpg
Pic time 1:10

http://i247.photobucket.com/albums/g...u/IMG_1966.jpg
Pic time 1:38

Jul 11, 2008 | 06:26 PM

#83

03vettemaniac

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From: Valencia CA

This is when we realized parts were missing and we spent the next few hours getting them all together.

http://i247.photobucket.com/albums/g...u/IMG_1969.jpg
Inside of header- Pic time 1:38

http://i247.photobucket.com/albums/g...u/IMG_1970.jpg
Homemade O2 extensions! Three hours later!! Pic time 4:40!!! (see most of the time was spent gathering parts not provided)

http://i247.photobucket.com/albums/g...u/IMG_1973.jpg
Room btw header and engine compartment

http://i247.photobucket.com/albums/g...u/IMG_1974.jpg
O2 sensors up against the stock channel plate (now a bit farther away)

http://i247.photobucket.com/albums/g...u/IMG_1976.jpg
Inside of resonator

Jul 11, 2008 | 06:32 PM

#84

03vettemaniac

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From: Valencia CA

Okay I am embarrased to say no pics of the whole system installed

All of us were trying to finish the job as fast as possible because we were all there after close. It just slipped my mind. I ordered my aftermarket O2 extensions and I have to get them installed next week...so I will snap a pic then. Was not able to get my tune at noon today, but will be getting it tonight at 7 from Charlie

Will let you guys know tonight!!

Jul 11, 2008 | 06:58 PM

#85

Genocid

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Will have to go over all the linked picts when I get home, but thanks for posting everything for us!

Jul 11, 2008 | 07:41 PM

#86

roysvett

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To all nay sayers

They look good to me i will use my current high flow cats this will be a easy addition only having to cut 2 pipes i think that the fit is good and the welds are good we will see the numbers soon. Props to 03 thanks for the picts. I think it will the decision making process for the rest of us .The number to OBX is 18667383222 ask to talk to someone about the c5 headers and when ask for their distributer number they will give it to you.IF you order direct from them they will give you a 10$ discount and will ship for 598.00 shiped. Can anyone chime in and tell us why these will not produce the equal hp or maybe 1 or 2 hp less than a competitor.

Jul 11, 2008 | 08:36 PM

#87

MaxLean

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From: San Jose Ca

Quote:

Originally Posted by roysvett

Just looking at them, they don't have anything fancy for the collector (merge, etc), but the primaries sure look the same as the name brands. I'd guess they would be within a couple percent of the more expensive, possibly a wash. I'm still quite happy with them. No leaks, and they aren't hitting anything either.
Scott

Jul 11, 2008 | 09:21 PM

#88

Genocid

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Quote:

Originally Posted by roysvett

there are lots of factors that can make a difference in both power and power curve / bands in the intake & exhaust systems. the most common terms you'll hear about what usually makes the difference are things like

Pressure equalization between cylinders (or banks)
equal air travel lengths
back pressure
low pressure areas
scavenging

"tuned" is just how all of these things are used together, but a properly tuned intake / exhaust system can / will make more power than just a bunch of pipes thrown together (intake more so for turbo cars, exhaust "tuning" has more of an effect for non turbo cars, for turbos you generally just go for the most free flowing exhaust you can get. Not sure about SC).

Flowmaster loves to point out that one of their mufflers actually makes -more- power with the muffler than with a completely unrestricted system.

So absolutely there can be differences! Look forward to see how this system does!

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Jul 11, 2008 | 11:37 PM

#89

roysvett

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to all naysayers

Wait till you all see the numbers that 03 got with the so called garbage no name header.I think that all owe a sort of a apology for his buy.I will have them ,install them my self and do it for 600.00$

Jul 12, 2008 | 01:08 AM

#90

Genocid

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Quote:

Originally Posted by roysvett

to all naysayers
Wait till you all see the numbers that 03 got with the so called garbage no name header.I think that all owe a sort of a apology for his buy.I will have them ,install them my self and do it for 600.00$

All?? Most have been quite supportive I'd say. Just because someone may not spend their own money on the same thing does not mean they think it's a garbage no name header, you're the first person I've seen call it that. Most are just concerned that there might be problems, and rightfully so I'd say given their well documented history with selling products that have a large % of problems.

Still waiting to hear more from the guy that's seen them taken off for problems. But with the updates about the install being easier than it first sounded like they're sounding more promising! I'd still like more info about the distributor as well.

Jul 12, 2008 | 01:38 AM

#91

03vettemaniac

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From: Valencia CA

Numbers Are In!!

Just got it dyno tuned by Charlie at RPM. Before the headers I had the Vararam, Borla Cat Backs, 3.42's and a dyno tune with RWHP 326. Now with the OBX headers and great tune by Charlie I got 356 rwhp and 365 ft-lb of torque! I asked Charlie how these headers compared with others and he said they were slightly above average in the hp gain and that the torque was the really impressive thing. I will look for my old dyno sheet and let you know the peak torque back then. If i remember right the peak torque was less than 320 ft-lb. As for now here is a few pics of the dyno sheet. Hope this answers any ?'s if not let me know

http://i247.photobucket.com/albums/g...reforyou/0.jpg

http://i247.photobucket.com/albums/g...reforyou/2.jpg

http://i247.photobucket.com/albums/g...reforyou/4.jpg

Jul 12, 2008 | 02:36 AM

#92

Genocid

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Congrats!

Did you have a tune done with those last numbers from the same shop before the headers and this run, or do these numbers account for both the headers and a tune you didn't have before?

I'm no expert on dyno graphs, but from the few I've seen it looks a little interesting. First of all, that's quite a flat torque curve!! Second though, the HP curve seems to be very linear, almost like a perfect 45* climb all the way from about 2k - 5k rpm, which seems like a slow start to me? I haven't seen a stock graph, so I could be way off here, but only 120 hp at 2k rpm? And only up to 200 by 3k rpm? Is that normal? I would have expected more meat down low with long tubes, or is that all in the flat torque curve?

Please correct me if I'm mistaken, but isn't it usual for the HP curve to climb a little quicker to reach more power a bit earlier in the rpm range?

Great overall numbers though!! Would love to see that old dyno graph!

Jul 12, 2008 | 02:50 AM

#93

03vettemaniac

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From: Valencia CA

Quote:

Originally Posted by Genocid

I had my first dyno tune done by LAPD's old tuner...i forget his name. The peak power with his tune was 326 hp w/ borla cat backs, 3.42's, and a vararam. Now after the header install and dyno tune by Charlie at RPM my peak power is 356 hp. I must be honest though, I attribute quite a bit of the gain to Charlies tune. He is really really good at what he does!! Not sure about the dyno sheets, interested to hear what other say about it. And i will look for the old dyno sheet

Jul 12, 2008 | 03:20 AM

#94

03vettemaniac

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From: Valencia CA

Old dyno #s

Finally found my old dyno sheet hope you can read it. Looks like I was way off about guessing my old torque. Peak Power was 325.79 and Max Torque was 336.68. Here is two pics of the old dyno sheet...

http://i247.photobucket.com/albums/g...eforyou/e1.jpg

http://i247.photobucket.com/albums/g...eforyou/e2.jpg

Jul 12, 2008 | 03:21 AM

#95

Genocid

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I bet with a torque curve like that it's a lot of fun to drive!

Looking forward to that old graph if you can find it. I'm used to turbo app dyno sheets, so maybe that's a trait of turbo cars moreso than NA's. I'm sure someone else familiar with c5 dyno sheets can fill us in

Jul 12, 2008 | 03:33 AM

#96

Genocid

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Ok, so the HP increase rate is similar between the two graphs, that's good!

So you went from 325.79 hp & 336.68 Tq to 356 hp & 365.4 Tq, so you gained 30.21 Hp & 28.72 Tq from headers and a fresh tune, not bad considering it had already been tuned before! With the mods you have I would have expected more if it had never had a tune before, or less if it didnt have a tune and you didnt get one this time.

So that's not bad.

You have 350 torque from 2500 -5250 RPM with it peaking at 365.4, & still over 310 Tq down at 2000 RPM, that's pretty darn good I think!

Jul 12, 2008 | 03:57 AM

#97

tstar

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From: DuBois PA

St. Jude Donor '11-'12-'13-'14-'15

Pretty darn excellent actually!!!!!

Tim

Jul 12, 2008 | 04:12 AM

#98

03vettemaniac

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From: Valencia CA

[QUOTE You have 350 torque from 2500 -5250 RPM with it peaking at 365.4, & still over 310 Tq down at 2000 RPM, that's pretty darn good I think!QUOTE]

Quote:

Originally Posted by tstar

Pretty darn excellent actually!!!!!

Tim

Thanks guys

Jul 12, 2008 | 04:27 AM

#99

tstar

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From: DuBois PA

St. Jude Donor '11-'12-'13-'14-'15

Quote:

Originally Posted by 03vettemaniac

[QUOTE You have 350 torque from 2500 -5250 RPM with it peaking at 365.4, & still over 310 Tq down at 2000 RPM, that's pretty darn good I think!QUOTE]

Thanks guys

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