RennSport Racing New Orleans

#031 Gets some modern updates.

by on May.05, 2011, under Racing

We have been working on some modern updates for #031 to bring it into the 21st century. Most importantly to improve drivability and increase performance we have installed a MOTEC M4 Engine mangement system and GARRETT GT ball-bearing turbos. The MOTEC system included (6-individual) TMW throttle bodies, billet fuel rails and 950cc injectors, new crossbar linkage and new fuel lines. With a new set of Reid Washbon Racing headers and Garrett GT3071R turbos from Dura-Bilt we should have a much more responsive engine. The turbos required the most fabrication of all the changes due to the offset of the mounting flanges. New stainless-steel hangers,modified exhaust pipes, smaller oil inlet lines and removal of the “catch-cans” along with modified charge pipes were needed to install the turbo’s. The last item we will add will be O2 bungs in the exhaust pipes to install our wideband Lambda sensors to monitor the fuel mixture for any neccessary adjustments to the program.

“Before” with the kugel-fisher mechanical injection and KKK turbos as origionally supplied by PORSCHE, and “After” with the MOTEC EFI, TMW throttles and Garrett turbos. To the “untrained eye” it looks pretty much the same, but if you look closer you will spot the differences!

More photos showing the fabrication and installation

1 Comment for this entry

  • Benno Becker


    I am very happy to find this car on your homepage. I am just building , or try to do so, a 99% original replica of a 935 out of my `77 turbo, similar to this #031.
    Parts I am searching are the right side of intercooler, alu housing #930 110 636 00 and #…638…,
    and tube #…640…
    Fiberglass bodyparts missing are the rear window overlay and the ducts for the intercoolers beside.
    I would be very happy about any part or info,

    best regards Benno

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