Odd title I know but I didnt know what else to say. My motor has a dead cylinder so I have decided to put a long block in it with the following stats
Wiseco Pistons .020 over
Eagle/SCAT H Beam Rods
ARP Rod Bolts
Block inspected and cleaned
Block redecked
Block Bored and Honed using a Torque Plate
Rotating assembly balanced
Crank magnafluxed and the journals micro-polished
New Moly coated Race Spec main bearings installed
New Moly coated Race Spec rod bearings installed
Block prepped and assembled
New OEM Head Gaskets
Heads inspected and cleaned
Heads redecked
Ported exhaust and intake runners
3 angle valve job
New OEM Valve stem seals installed
Valve Stem Heights set
Cold Clearance set for stock cams
Heads prepped and assembled
New OEM Rev-up Oil Pump

My real quesstion involves the exhaust. I have a JIC spartan single exit with a SS pipe and Ti muffler. I normally run with the silencer in on the street and out on the track. I have a jwt intake, teast pipes, and headers. I love this setup and the sound levels are just right for street and track but with the new motor I dont want to run a silencer. Im worried about back preassure and the new motor is this a valid concern? I was thinking about adding a muffler or resonator in the middle of the exhaust (I currently have the JIC with no resonator) any thoughts on this idea and suggestions on the muffler to use if that is your suggestion.
Thanks

 

You shouldnt have a problem with or without the muffler/silencer.

 

do u plan on going FI?

 

I plan on staying NA this car will be a daily driver and a track car.

 

Use a resonator in the 5" to 5.5" diameter range about 12" to 14" long.

 

r u worried that not having backpressure in ur exhaust is gonna harm ur motor?

 

I will look into the resonator mentioned above. How much quieter will it be with that resonator and no silencer? Also to answer above I am worried about too much back preassure with the silencer that is why I want to go with no silencer

 

I ended up getting a 30in long flow through resonator of the type mentioned above. I will let you know how it works

 

Good stuff. N/A cars never have to worry about back pressure because not enough is created in the first place. If you were FI, you would maybe consider removing the silencer because the flow restriction will decrease power. I don't think these cars, even FI'd Z's, will produce enough pressure to create a large amount of back pressure...especially if you already have an aftermarket exhaust.