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ZR-1 Net Registry Forums (http://zr1.net/forum/index.php)

- C4 ZR-1 General Postings (http://zr1.net/forum/forumdisplay.php?f=14)

- - OBX Headers? (http://zr1.net/forum/showthread.php?t=13458)

KILLSHOTS

08-17-2014 04:28 PM

Re: OBX Headers?

Quote:

Originally Posted by efnfast (Post 209897)

Stock, as I got it. 311RWHP. 309 TRQ
Headers, exhaust,chip. 353RWHP. 341 TRQ
Ported plenum and Injector Housing (IH) 397RWHP. 363 TRQ

Next major upgrade will be head work and probably reground cams.

Welcome BTW.

I'm debating on plenum/IH porting right now. What sort of SOTP difference did you notice when you did that?

efnfast

08-17-2014 04:41 PM

Re: OBX Headers?

Quote:

Originally Posted by KILLSHOTS (Post 209900)

I'm debating on plenum/IH porting right now. What sort of SOTP difference did you notice when you did that?

Hard to say, I did it over the winter, so it was a long time between drives. I got mine from Lococbob. He did a swap, I bought them from him, and sent him mine when I was done. Plus I had them powder coated. Looks good.

Billy Mild

08-17-2014 06:34 PM

Re: OBX Headers?

Quote:

Originally Posted by efnfast (Post 209897)

Maybe I'm crazy but I feel like 311 who is low for these cars. I have seen a lot of numbers around the 350 mark for a stock car.

393 WHP is impressive though. I bet it moves rather well and the LS guys probably have a hard time keeping up. Haha

efnfast

08-17-2014 06:41 PM

Re: OBX Headers?

311 was low, picked up what I was missing in the exhaust work. Found a ZL-1 Camaro the other day. Fast car. I'm happy with it, but not happy enough.

Schrade

08-17-2014 09:57 PM

Re: OBX Headers?

Quote:

Originally Posted by efnfast (Post 209915)

311 was low, picked up what I was missing in the exhaust work. Found a ZL-1 Camaro the other day. Fast car. I'm happy with it, but not happy enough.

Be careful.

Power bug gets you, and 6 figure$ STILL won't get you what you want...

__________________________________________________

Quote:

he adds fuel to support them and enables the anti-backfire.

I don't know if I want to go there; it pulls pretty well right now, and I don't have any problem with backfiring, including when I let off.

Now that the water is gone from the tank, it's running and idling smooth as ever, again, (except for that 1.6 - 2.4% TO glitch, which I don't believe is anything wrong (and that Marc says they all have http://www.zr1.net/forum/images/icons/icon5.gif ) ).

KILLSHOTS

08-17-2014 11:08 PM

Re: OBX Headers?

Quote:

Originally Posted by Schrade (Post 209938)

Be careful.

Power bug gets you, and 6 figure$ STILL won't get you what you want...

__________________________________________________

I don't know if I want to go there; it pulls pretty well right now, and I don't have any problem with backfiring, including when I let off.

Now that the water is gone from the tank, it's running and idling smooth as ever, again, (except for that 1.6 - 2.4% TO glitch, which I don't believe is anything wrong (and that Marc says they all have http://www.zr1.net/forum/images/icons/icon5.gif ) ).

Man, have him add the fuel and just ask him to not disable the DFCO. You're lucky to not have the backfire issue; Marc told me mine was running unusually lean on decel anyway, before I made the modifications, so it doesn't surprise me that mine was backfiring like an SOB. Marc feels strongly that you need to add the fuel to get the full benefit. Enhance that Permagrin, Schrade!

8cam	08-18-2014 07:26 AM

Re: OBX Headers?

At that price point, these are seriously tempting - $509 on ebay right now. Anyone got a pic of Corey Henderson's headers? Wondering how the two compare.

XfireZ51

08-18-2014 08:11 AM

Re: OBX Headers?

Quote:

Originally Posted by 4cam (Post 209954)

At that price point, these are seriously tempting - $509 on ebay right now. Anyone got a pic of Corey Henderson's headers? Wondering how the two compare.

It's my understanding that Corey doesn't build the Jeal header unless it's part of an overall engine build. Just not worth the time and effort as a stand alone product.

Bob Lyle

08-18-2014 09:24 AM

Re: OBX Headers?

Steve going to any shows in the near future?

efnfast

08-18-2014 11:28 AM

Re: OBX Headers?

Quote:

Originally Posted by Bob Lyle (Post 209961)

Steve going to any shows in the near future?

Carlisle on Thursday, nothing else planned. Got anything up your sleeve?

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