Headers installed - ZR-1 Net Registry Forums

Aurora40 · 04-18-2007

I got headers installed this last week. They have cats (random tech) and AIR tubes. I drove up to Marc Haibecks to have them done. I also had C-beam plates installed, and got the car dyno tuned. Marc also noticed the shift boot wasn't installed properly, so he fixed that and a loose drivers side exterior mirror. As part of the tune, he re-enabled the shift light and raised the redline to 7,300 rpm.

The car woke up noticeably! It also sounds awesome. There is more burble to the exhaust. There is of course also more noise and resonance. I'll have to see if I get used to it or not. Marc mentioned it seemed to have less resonance than the B&B with headers, and a little more than the '93+ pipes with Flowmaster 40-series delta flows.

Anyway, on to the meat of the upgrade:

bobbyhi · 04-18-2007

That is really great to hear about your car......mine is going to Haibeck's on Saturday for header w/o cats also. Hope to pick up a couple of HP's doing so. I have the Power Effect Exhaust system so I really don't know what to expect for noise. Hope it picks up a couple of decibles

....

jonszr1 · 04-18-2007

very nice numbers indeed . what exhaust do ya have ? 410 gears and top end porting really do the headers justice. get you into the 400s mine 409.9 and 373.3 tq with the top end done give you a perminate

GrayZ · 04-18-2007

wow...those are great numbers, for just an exhaust, headers and chip.
I'm am anxious to get my car back..Marc has it too.
i've having the chip and gears..and few other things done.
did ya see mine there? it didn't act real mean, I hope
my car does not play well with others..

Z Factor · 04-18-2007

Very nice

I think you will adjust to the resonance by either getting use to it or adjusting your driving to avoid it.

Aurora40 · 04-18-2007

It has headers, exhaust, and a ported top end. The exhaust was featured in the previous HotB. It's the stock pipes with an LT4 resonator and Dynomax Ultraflow mufflers. From the back it looks stock with the square tips and black cans.

Keith, I saw your car there. It's *** was way up in the air. I could tell you drove it a few miles to get there, as it was almost as dirty as mine.

FU · 04-18-2007

Nice number's

Let the mods begin !!
When will the plenum and inj. housings be done

04-18-2007

Quote:

Originally Posted by FU2

Nice number's

Let the mods begin !!
When will the plenum and inj. housings be done

They already are done.

Aurora40 · 04-18-2007

^-- What he said. The top end was ported about a year ago.

Peaven · 04-19-2007

Outstanding Bob! I'll bet she really gets to 7300 quick....with all of the mods being done to so many of yous guys Z's, it looks like Blue will be the slowest Z in BG

....I think wifey needs to get a job.

04-18-2007	#1
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Headers installed I got headers installed this last week. They have cats (random tech) and AIR tubes. I drove up to Marc Haibecks to have them done. I also had C-beam plates installed, and got the car dyno tuned. Marc also noticed the shift boot wasn't installed properly, so he fixed that and a loose drivers side exterior mirror. As part of the tune, he re-enabled the shift light and raised the redline to 7,300 rpm. The car woke up noticeably! It also sounds awesome. There is more burble to the exhaust. There is of course also more noise and resonance. I'll have to see if I get used to it or not. Marc mentioned it seemed to have less resonance than the B&B with headers, and a little more than the '93+ pipes with Flowmaster 40-series delta flows. Anyway, on to the meat of the upgrade:

04-18-2007	#2
bobbyhi Join Date: Jul 2005 Location: Mendota Heights, MN. 55120 Posts: 983	Re: Headers installed That is really great to hear about your car......mine is going to Haibeck's on Saturday for header w/o cats also. Hope to pick up a couple of HP's doing so. I have the Power Effect Exhaust system so I really don't know what to expect for noise. Hope it picks up a couple of decibles ....

04-18-2007	#3
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: Headers installed very nice numbers indeed . what exhaust do ya have ? 410 gears and top end porting really do the headers justice. get you into the 400s mine 409.9 and 373.3 tq with the top end done give you a perminate

04-18-2007	#4
GrayZ Join Date: Mar 2006 Location: Innsbrook, Missouri Posts: 1,720	Re: Headers installed wow...those are great numbers, for just an exhaust, headers and chip. I'm am anxious to get my car back..Marc has it too. i've having the chip and gears..and few other things done. did ya see mine there? it didn't act real mean, I hope my car does not play well with others..

04-18-2007	#5
Z Factor Join Date: Dec 2003 Location: S. Florida Posts: 2,647	Re: Headers installed Very nice I think you will adjust to the resonance by either getting use to it or adjusting your driving to avoid it.

04-18-2007	#6
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Re: Headers installed It has headers, exhaust, and a ported top end. The exhaust was featured in the previous HotB. It's the stock pipes with an LT4 resonator and Dynomax Ultraflow mufflers. From the back it looks stock with the square tips and black cans. Keith, I saw your car there. It's *** was way up in the air. I could tell you drove it a few miles to get there, as it was almost as dirty as mine.

04-18-2007	#7
FU Join Date: Mar 2004 Location: Found Member Posts: 4,327	Re: Headers installed Nice number's Let the mods begin !! When will the plenum and inj. housings be done

04-18-2007	#9
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,704	Re: Headers installed ^-- What he said. The top end was ported about a year ago.

04-19-2007	#10
Peaven Join Date: Jul 2006 Location: Omaha, NE Posts: 322	Re: Headers installed Outstanding Bob! I'll bet she really gets to 7300 quick....with all of the mods being done to so many of yous guys Z's, it looks like Blue will be the slowest Z in BG ....I think wifey needs to get a job.