Redone exhaust and improved tune

Started by gmonsen, April 15, 2017, 05:54:10 PM

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gmonsen

I tried to find my old thread, but couldn't.  So, here are some pictures of my new exhaust and a video of the new exhaust and newer tune.  First, I used to have 2 Borlas in line and they sounded "tinny" to me.  So, I swapped them out for 2 Magnaflows or about the same length plus 2 5 inch Vibrants.  It made the sound deeper and not tinny at all.  Second, the exhaust note used to sound lumpy, like a cammy piston motor and the idle was at 1500 or so.  I found pinhole leaks in the intake runners and plugged them up.  Found 2 of the injectors had similar small leaks.  Fixed them.  The throttle plates are still misaligned or not in sync and I'll fix that shortly.   

Gordon   

https://www.youtube.com/watch?v=EShtSYUyWx0
1993 Mazda Rx7 R1 20b NA/ 1991 BMW E30 M3 2.5 Evo II/
1991 BMW 850i Dinan 6 speed/ 1990 Corvette ZR1/
1994 Ducati 916 Strada/ 1993 Ducati 900SS/1989 Honda GB500/1986 Honda VFR750F/
1974 Honda CB350F/1971 Honda CB450K4/CB1968 Honda CB450K1/1980 Moto Guzzi V50 Monza

boosted

Very nice indeed...thats 1 awesome manifold...

Sent from my SM-N910F using Tapatalk

92 FD rx7 Twins 13.5psi.  EX Track car
EAT SLEEP ROTOR REPEAT.

clive

Wow, that looks good.

Couldn't work out what I was looking at, but then I saw the video  :great:   
All the best Clive