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Here's the video - it's worth noting that to run these times, the car made over 800 crank horsepower: On a mineshaft air day, it might get to 850 hp. But I think that's all the compressor's got. Without another power adder (i.e. second electric supercharger or nitrous) it won't hit 1,000...

Sorry about taking so long to respond. They poured my foundation incorrectly in Texas, and dealing with that from over 1,600 miles away is extremely difficult and frustrating; I'm also packing up stuff from my house for my next trip down. I can't wait until all this other stuff is in the...

LMT 30100 and yes. Haven't pulled the ESC logs yet though.

I'm really eager to see how those cells work out - please keep us posted. My own experience tells me that until you put the compressor on the engine, you won't know how fast the motor will actually turn - not one motor I've tried has been able to hit it's rated kv in actual use, though some...

No - it's a hex drive. It's actually a billet Si wheel in the Sledgehammer - not much of a difference, but a difference none the less.

Thanks for taking the time to model all that. I spent Thursday prepping the car and Friday I took it to the track. Of course, there'll be a video, but here's quickest slip (fastest was 136 mph):

That sounds closer. Those programs always seem to get you in the ballpark, but they're only as good as the input data. I know when I'm in the building phase of a project I can't help but do whatever simulations I can because I'm excited to see the result. I appreciate you running that through...

The valve sizes are close - 2.02 and 1.60. The seat to seat duration (0.006") is more like 280 and 292. The engine makes about 520 flywheel hp - with the other converter I saw a 26% loss through the trans and converter; and it has a BSFC of about .47, which is actually not great because of the...

Sorry for the delay - I've been having major issues with the place in Texas - the contractors poured the foundation incorrectly (and it passed 3 inspections before it was poured, somehow). It's been all I can do to work, try to fix that, keep tabs on my mom (she's 81 now) and kid, pack up the...

Here's the video:

Low rpm boost will blow up pistons. I have a collection of pistons to prove it, and have even cracked a block (SBF) down the middle as a result. What will happen is your tuning window gets real small, because your cylinder pressure gets really high. RPM is easier on parts (up to a point, of...

I would say 12s should be a minimum requirement for any ESC one would consider for any full-size automotive application. Also, while kv and torque constants can be used as a guide, I wouldn't go by them. Too many variables. In practice you'll find things change. Sometimes by a lot. That's...

I think you could come close to 17kW from the Castle/Hobbywing setup. I'm sure you could get to 14kW fairly easily (you just need to make sure duty cycle on the motor is maxed - which means finding the pulley sweet spot (one advantage of a belt/pulley setup)). Basically you want phase current...

It made 17 more peak hp, but as you mention, the area under the curve is huge. Another thing to consider is the weather was horrible last thursday - it was around 90*; the time before, the ambient was around 65 degrees. Even with dyno corrections, it would've made even more - probably another...

I think LiFePo4 cells would work great - the battery in my car (the 12v battery) is a DIY LiFePo4, 100ah battery and it works much better than the old lead acid battery. MkngStffAwesome on here has done some testing with the headway cells - you may want to try hitting him up.

Well - I'll stay this. I've blown up 2 APD ESCs and no MGM ESCs. And the VESC had major issues at high eRPM. Even Kelly controllers charges more for the same ESC running higher eRPM (they have two additional option levels - high rpm and ultra high rpm). It would be nice if there was a...

FWIW, when I spoke with Speedmaster about their P2 superchargers, the guy told me their biggest holdup is getting the shafts.

Here's a graph of torque (though keep in mind this is a glide, so I don't know how meaningful this is):

We finally made it back to the dyno yesterday. It was an interesting day to say the least. The converter, running n/a, LOST 40 rwhp, but locked up harder and turned 6 more mph on the dyno. And when all was said and done, we made a good bit more power with the Sledgehammer in ~90 degree heat -...

I agree with GTHound's thinking. Extremely high rpm means high ESC switching losses, which limits power in a non-linear fashion. However, WB Projects has had some success using a more conventional turbo on his setup. Though I do tend to side with GTHound on this point, there's still very...