Field Report: Talking with Rob Dahm about his 1000HP+ Quad rotor build.
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Description
If you haven’t heard of Rob Dahm and his Mazda FD RX7 build, you have now. This has been many years in the making so far with lots of ups and downs as well as plan changes along the way — we caught up with Rob a couple of years ago at SEMA and took a good look at this incredible build. Want to learn how to EFI tune? Start with some free lessons right here: hpcdmy.co/efilesson Brotherly rivalry led Rob to consider an AWD/4WD build and with support and encouragement from Ian Steward of ASD Motorsports who built Ken Block's Gymkhana 7 ‘Hoonicorn’ AWD Mustang. A lot of the details of the Hoonicorn build were shared with Rob, but in the end, it wasn’t compatible with this application particularly when it came to fitting a passenger seat. Due to concerns with cast components, Rob sourced a billet 4 rotor from Carl Thompson which was the spare for a build of his we have featured previously (linked below). It has some unique features which we’re excited to learn more about as time goes on and A-B testing is planned in relation to tuning and exhaust components in the near future too. The car runs an R32 GTR transfer box off the back of a Holinger RD6, Winters Quick Change rear differential, Adaptronic M6000 ECU, Garrett 106mm turbo, Clearview oil filtration system along with Ti Automotive a dual brushless pump setup. Also discussed are the reasons for the tube frame in relation to requirement, or just preference, cast vs billet 4 rotor setups and what the plan is from here.
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