Re: B&B Header Back System...
Quote:
Originally Posted by rossgn49u
Had the 3" system with xpipe. Could not use cell phone on highway. Had the stock system reinstalled. Looked and sounded great, other than the drone issue. Drone was most prevalent in 6th gear. Tolerable in 5th at 75mph.
Sent from my SM-G930V using ZR-1 Net Registry mobile app |
The excessive resonance is rpm and load related, not speed. The resonance spikes occur at two points, roughly 1800 and 3400 rpms, and is most intense under light load. It is mitigated with Helmholtz Resonators, which the stock and Corsa systems have but not the Borla. Also if you are switching to Borla, note they have fairly restrictive mufflers (or at least used to) and also use a restrictor ahead of the resonator as noted in these Technical Information notes by Marc Haibeck on his website. http://www.zr1specialist.com/HAT%20W...20vs%20b&b.htm and http://www.zr1specialist.com/HAT%20W...restrictor.htm --Bob
__________________
2016 Long Beach Red Z06 #10281 "POPS Z"
1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts
--Sold but still running strong
1993 Quasar Blue #161 "HIL KING"
--Sold but still running strong, now with more than 120,000 miles
1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd
--Sold a long time ago
ZR-1 Net Registry Founding Member #95
NCM Lifetime Member
Favorite Quote--Attributed to Mickey Thompson:
"Too Much Horsepower is Almost Enough"
Last edited by WARP TEN; 03-24-2019 at 12:42 PM.
|