(VIDEO added page three) $800 home built twin turbo setup. The car is my '87 Mustang GT. I picked it up 18 months ago for $1000. It needed a new clutch and a bit of TLC but the odometer showed 127,000 miles which isnt too bad.
I was gonna just pull the trans and replace the clutch, but the engine was very grimy so I figured why not pull it too so I can powerwash it and put some new gaskets in it. I got them out and stripped the 302 to the shortblock, then I figured why not put in a new set of rings and bearings, so I stripped it down bare and sent the crank, block and piston/rod assemblies to my machinist. He honed the cylinders, hammered in a new set of cam bearings and cleaned the bare block. The crank only needed a polish and I had him press in a set of ARP rod bolts.
I get all the pieces home, spend the next 6 weeks assembling the shortblock and TFS heads and top it off with a Parker Funnel Web. I spent 20 hours doing a bowl blend with the twisted wedge heads and port matching the funnel web intake with the TFS runners. The cam is a TFS stage 1, it specs out at 221/225 dur @ .050" and .499"/.510" lift in/ex with a 1.6 roller rocker. As far as the motor goes its really nothing special, just a heads/cam upgrade with a carb conversion. The compression ratio is still 9.3:1 and the Holley is an old 650 DP that I converted to run as a blow thru.
Now the fun stuff! The Blowthru Setup
The headers are home-made, they consist of some SB header flanges that I chopped off the original shortys, all the tubing from the flanges to the 3 1/2" collector is 1 5/8" mandrel bent. I bought a DIY weld up kit that came with a box of 1 5/8" bends, the funny part is the kit was for a small block Chevy and priced at $89 minus SBC header flanges. I reduced the 3 1/2" collector down to 2 1/2" and ran that to the T-3 flanges.
The turbos are cheap ebay .63/.50 A/R Ford turbo coupe knock-offs, they usually sell for $150-$200 apiece. The twin 38mm wastegates are $60 apiece ebay specials. BOV is a $40 you guessed it (ebay).
The charge pipe is another homemade piece consisting or 2 1/2" mandrel bent mild steel tubing, the two pipes meet and merge into a 4" tube that feeds into the 4" carb bonnet.