Driver impressions from those who did some porting please - Page 5 - ZR-1 Net Registry Forums

Ccmano · 01-18-2018

The trick is finding an LT4 system. Z06 cats are easy.
H

XfireZ51 · 01-18-2018

Quote:

Originally Posted by -=Jeff=-

Gunny, how is the odor from having no cats? I found it a bit much on my Borla challenge system and I have cats with Corsa currently

Jeff,

Currently tuning Hans’ 90 w similar setup. Working on tuning out most of the rich smell which is typical at idle. We’ve been able to reduce it significantly.

billschroeder5842 · 01-18-2018

Quote:

Originally Posted by WARP TEN

Bill, George is right--If you like a sleeper look but the ability to add power and be very loud when you want it, go for headers (with or without cats), a stock '95 system with cutouts.

Wow, what a slick system- I bet that is a lot of fun!

XfireZ51 · 01-19-2018

Quote:

Originally Posted by billschroeder5842

Wow, what a slick system- I bet that is a lot of fun!

Some of us here in the Windy are using the C6Z06 NPP valves mated to DynoMax Ultraflow muffs. I have a switch in the center console controlling Open/Close on these. I mostly drive w them closed. Even w/o resonator, they do a good job of controlling drone IMO. Especially w better tuning.
W the valves open, everything still goes thru the muffs but now a second opening is operative giving the exhaust a deeper bass note much like a big block.

WARP TEN · 01-19-2018

Quote:

Originally Posted by -=Jeff=-

Gunny, how is the odor from having no cats? I found it a bit much on my Borla challenge system and I have cats with Corsa currently

There was definitely a strong odor in the garage on start up but as Gunny notes, not at 70 mph. Marc reminded me that it is what cars smelled like in the 60s and 70s. I think if i still had the '95 I would add some bullet cats or maybe the Z06 ones noted elsewhere to minimize this. --Bob

WARP TEN · 01-19-2018

Quote:

Originally Posted by billschroeder5842

Wow, what a slick system- I bet that is a lot of fun!

For me it was certainly the perfect system and I did enjoy it. Always fun to be sitting quietly at a light then open up the cutouts. Or starting the car with the cutouts open, say when you are leaving a car show.--Bob

-=Jeff=- · 01-19-2018

Quote:

Originally Posted by XfireZ51

Jeff,

Currently tuning Hans’ 90 w similar setup. Working on tuning out most of the rich smell which is typical at idle. We’ve been able to reduce it significantly.

Understood, but it is still there. I have almost all the pieces, i just need to make them all fit together

rush91 · 01-19-2018

Bill, you just couldn't leave it original huh lol.......Mods on these cars are addictive. Once one starts, it's hard to not keep going! I plan on making it to Bowling Green this year for the Gathering, and plan on asking you guys with Mods ALOT of questions!!! And maybe ask for some ride alongs, to get a feel for the different exhaust / header combos.......Ya, I'm going to be that guy who asks a million questions lol.

01-18-2018	#41
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Driver impressions from those who did some porting please The trick is finding an LT4 system. Z06 cats are easy. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

01-19-2018	#48
rush91 Join Date: Feb 2016 Location: Carterville Illinois Posts: 852	Re: Driver impressions from those who did some porting please Bill, you just couldn't leave it original huh lol.......Mods on these cars are addictive. Once one starts, it's hard to not keep going! I plan on making it to Bowling Green this year for the Gathering, and plan on asking you guys with Mods ALOT of questions!!! And maybe ask for some ride alongs, to get a feel for the different exhaust / header combos.......Ya, I'm going to be that guy who asks a million questions lol.