4" Mufflex exhaust

This is my 1991 Camaro Z28 with 4" Mufflex Exhaust system. I have Hooker (#2210) long tube headers, 3" pipes from the collectors into a Flowmaster merge Y-pipe out to 4", 4" over the axle into the Spintech muffler with 3" stainless steel dual outlets. This video does not do the sound justice. I used my video setting on my digital camera. I set out for a unique sound and I got it with this system. I was tired of hearing late model Camaros with Flowmasters (sound horrible, imho). Look on my other video for complete stats on the car. The big revs are up to 5200 rpm. There was a LOT of condensation in the pipes due to their large size. The car also likes to run very rich when it has not reached closed loop, and was nearly to operating temperature in this video. I tightened the blower belt and was running full Boost in this video. More to come.

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1991 Supercharged 383 TPI Camaro Z28
This is my 1991 Z28 Camaro. I am running an Eagle bottom end (5.7" H-beam rods) with forged JE pistons. The block is a 1976 4-bolt main block with ARP bolts. That is good for 383 cubic inches. The compression ratio is around 8.2:1. It has a custom ground Lunati flat tappet camshaft, Crane full-roller aluminum rocker arms, and Comp Cam lifters and springs. The heads have mild port work done. The TPI induction is stock except for a TPIS air foil. It has Hooker long tube headers (#2210) and 4" single Mufflex Exhaust to a Spintech muffler with 3" duals out and a Flowmaster merge y-pipe. The blower is a Vortech S-trim with a 2.87" pulley, good for about 12-14 psi at 5500 rpm depending on conditions. The car has not been fully tuned yet with the stock computer. It is running 30 lbs injectors with a 4:1 Vortech fuel pressure regulator (yes, I know). It has a shift-kitted 700-R4 with a 3000rpm stall TCI torque convertor. The rearend is a 10-bolt that I have rebuilt once with Richmond Street 3.73 gears and an Eaton carbon fiber clutch posi. It has run a best G-Tech time of 13.6 at 110 mph spinning the tires through first and halfway through second at 5200ft elevation. The car is estimated around 450 fwhp and over 550 ft/lbs of torque. I am in the process of pulling the car apart to repair the body, replace the broken windshield, and replace the transmission. The car was sitting for about a year after I blew 3rd gear. This is the 4th time starting since. There is a pulley that is making noise that can be heard over the blower. I am planning on making a few more videos before the teardown. The revs were to about 4000rpm and the belt was not adjusted very tightly. Sorry about the bad sound quality.





My Camaro
Video clip of my Z28





First start on new rebuilt 305 engine from 1984 Z28 Camaro
This is the first start that made this engine for several years. This 305 L69 has been rebuilt since 2006, and started the 07/23/2009. Big Thanks to Sam and Fred for mechanics ! New Spot ManCamaro : https://www.youtube.com/watch?v=S3MjZ41jJTQ




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