Los Angeles based Doug and Miriam Macmillan again made their mark at the 63rd annual SpeedWeek, as the pair drove their Acura RSX and Honda CRX to three new records and new personal bests at the Bonneville Salt Flats in Utah. Doug is the co-founder of the successful Los Angeles based Hondata Inc.

Competing for her 4th year, Miriam drove her 1990 Honda CRX, with a turbocharged 1.5 liter engine and new DW1300cc injectors to a new record of 220.258 mph averaged over two runs on successive days. Miriam’s exit speed at the end of the 4th mile of 234.6 mph is a personal best up from her peak speed of 207mph in 2010 when she earned her crown as New Zealand’s Queen of Speed.
“My CRX has a lot more in it” said Miriam. “Had the driver’s window not been sucked out of the car and smashed I would have run again and continued to the 5th mile.”
Doug later commented on the addition of the DW1300cc injectors, “Out of all the injectors I tested, the DW1300cc injectors were the best choice for our highly strung K15 turbo allowing us close to 700 HP with ample capacity to spare.”




Doug’s twin supercharged 2.0 liter Acura RSX fueled by a single DW301 300LPH fuel pump was up next. Armed with a Boost-A-Pump to increase pump voltage to 18V, “this gave us ample fuel to repeatedly and reliably run our 800 HP twin supercharged K20 engine over the 5 mile land-speed course.”
The first run put an impressive 12mph on the previous record to achieve 230.761mph. Doug’s runs were all smooth, however. Tire issues and engine rod cap failure cut the RSXs runs short, not allowing him to back up his fastest run of the day. But, despite these issues, Doug’s RSX broke the previous record with a 232.546 mph run, the team’s fastest timed mile for the week.



Doug’s closing thoughts...

“The RSX with its 100 shot of nitrous was pulling very strongly. With better tires and taller gearing we’ll be shooting for more than 240 mph in the RSX next year.”
“I think the CRX has the most untapped potential though. Our goal for the CRX is to hit 250mph.”

 

That's awesome

 

that is crazy! a K15? is that stock? or were the sleeves changed using a k20 block?

 

I believe the K15 is based off the K20A.

 

i read an article on it a while back, it said it was a custom crank with a shorter stroke.