Here are a couple of screen shots of my Ariel Atom II going from zero to 110 MPH. The first printout shows the session timer at 1:14.195 and the speed at 1 mph (the first movement from stopped), and the second printout is at 101 MPH with the session timer at 1:20.715. So 1 mph to 101 mph in 6.52 seconds. I am pretty happy with this, considering the tires were cold and the track was so dusty that I could not use full throttle until more than two seconds into the run, when the tires finally hooked up, at about 40 mph, as shown on the data log.
I am trying to learn how to use my HPtuners equipment to do my own tuning. I bought Greg Banish's CD and his Engine Management Advanced Tuning book and have spent a lot of time, so far, trying to learn. It is proving to be a real challenge, but at least my wide open throttle performance is pretty good.
This run was a second gear start, so there is only one shift, at 8,192 rpm and 78 mph, from second to third gear, and I ran it up to 110mph in third, at 8,082 rpm, before I shut it down.
I built the Ecotec LSJ engine myself, except for the Darton sleeve installation and the CNC porting of the cylinder head. I increased the bore from 88 to 92 mm to increase the displacement from 2.0 to 2.2 liters. I used Carrillo forged steel rods and Diamond forged pistons with Total Seal rings. Supetech valve springs, oversize stainless intake valves and Inconel exhaust valves, and titanium retainers. I used Comp cams, and have a stainless and stepped header/collector, with a shorty FlowMaster muffler. I use a tunable water/methanol injector, and have two aluminum intercooller radiators with two large Bosch pumps, and four full-time electric fans on those. I use the Harrop TVS supercharger on the LSJ intake manifold that I hand ported and matched to the larger head ports.
Big fun so far-
Eddie
