New TOY! OFNA Hyper One Seven

[Thirdgen89GTA]

Its based on the Hyper 7 PBS setup. Uses same front and rear arms I believe. I'll have to check part numbers on that to be sure though. front and rear diff/bulkheads should be the same. I did that for the pictures. Its an easy plastic c clip that snaps into place either in front or behind the upper a-arm on the hinge pin. Right now both clips are behind the a-arm to give it massive caster. But when I was running it i had it set with 1 in front and 1 in the back of the arm. The "middle" setting which is the factory setting.

Its a blast though. Dips and stuff that really upset the 1:10th scale stuff didn't even faze the Hyper, and rocks that would have made a 1:10th scale owner cry as their car pinhweeled to pieces didn't make me skip a beat.

OS makes an on-road for $280 or so that I'm considering. but I can't find specs on it really. This is the one I'm talking about. http://www.os-engines.co.jp/english/line.../13871.htm, its about the same price as a Vspec. Not quite sure if I want a Vspec, P5x, or this engine in the car. For now a 528xr is going in there, but that ultimately won't have the RPM to pull insane speeds like I want to.

I'm switching to 15/19 gearing soon. Stock first gear uses 13/56 gearing, and 2nd gear has 17/52 gearing. I'm going to switch to the non-reverse 2spd in a bit, which will let me use a more normal 44/48t set of spur gears so I don't have to get crazy with clutchbell sizes.

With the stock gearing in order to hit 60mph an engine needs to turn 45,000rpm! The 15/19 clutchbell brings that down to 40,000rpm. And if I switch to the smaller 2spd with 44/48 spurs and use a 15/19 then I only need an engine to turn 34,000rpm to hit 60mph.

However, with a crappy Power Racing .27 and a JP3 pipe we got it to 43mph on the radar. And later got it to clock a bit faster. At 43mph the engine was turning 33,000rpm using stock gearing in 2nd gear. That engine wasn't really tuned perfect and it didn't have a body on it, so lots of drag.