Cheap tubing notcher for your lathe

[kb58]

Wow, I thought I had the best whp/weight ratio in town. Not even close, those numbers are crushing! Do you have to use a restrictor plate for autocross to keep it under control?

I grew out of autocrossing and now just do trackday events, but yeah, I'm a little scared of it. It's very unlike anything I've driven before, where every time I come out of Turn 9 at Willow Springs onto the front straight, and get pushed back into the seat, I sort of murmur "geez, this thing..."

BTW, the comment about different dyno types is actually a big deal. The hub-mounted type versus the in-floor drum type are different by about 20%. 20% doesn't seem like a lot but when the former says "500whp" means that the latter will read "400whp", which is an enormous error in design as far as I'm concerned. At the end of the day, dynos are just for tuning, not getting accurate numbers, but the in-floor drum type with its lower number is likely more accurate.

And yeah, I know I've totally hijacked this thread...