Some more American muscle at the track. It’s like the good ole Trans Am days when the domestics did a lot of road racing. GM is really cranking out track capable cars straight off the showroom floor. A Corvette took first in Limited with a 2:18.588 and a Camaro took second with a 2:19.819.
Kevin Parlett brought out his G35 that he’s been campaigning for quite a while. It always seems to be evolving with parts and aero updates. The turbo gets cold air with the air filter being located right behind the upper central opening which is all mesh to prevent damage to the radiator from debris.
Kind of like Evos, VQ powered cars are a bit scarce these days at time attack events and track days. Kevin has a nice Cosworth intake manifold back when Cosworth made cool aftermarket parts.
I think this is a Garrett GTX3584RS. It has a speed sensor installed to keep tabs on where the turbo is operating in the compressor map.
StopTech Trophy brakes doing their thing.
A number of Radicals were out getting some testing time in.
They have nice duct work getting air to heat exchangers and the front brakes.
6 comments
That NC Miata is what my NC Miata wants to be when it grows up
Honest question? Is there a lack of participation / competition going on at this event? Doesn’t seem very many serious competitors for the top spots.
Looks like a total of 46 cars were entered. In reading comments on various forums, it seems the high cost of entry due to it being at COTA deterred some from participating. That said, I think the notable cars missing were the Professional Awesome Evo, PZtuning Civic which seems was in Japan and just set the Tsukuba FF track record, Chris Boersma Civic, Can-Jam STI. RS Motors Evo. Could any of them have beat the Lyfe GTR? Not so sure…. would have been interesting for sure. Hopefully they all make it out next year.
Great article on a great event. I’m positive that this will become a standout event that draws everyone. SuperLap Battle USA, well done on taking what must’ve been a huge risk and making it happen. Khiem, so glad you were able to get there!
Not too sure that radiatior on the Miata is going to be effective. Even though you have high dynamic pressure at the stagnation point on the front bumper, it the streamline would have to turn something like 80 degrees, into another high pressure zone under an unvented hood. I’m sure it works but it probably adds a ton of drag. I hope he builds a ducted hood vent eventually. Or you could do what Ferrari did recently with the 488 Pista and vent beneath the car. Ferrari claims 10% better cooling and 7%less drag. Another bonus is that the rear gets cool air instead of hot air which is denser, with less turbulence and entropy so the rear wing or spoiler becomes more efficient. The CoG is better too.
https://www.youtube.com/watch?v=F5mTBkJXb-s&app=desktop
I had to know what was going on with the SR3 Radical suspension. Found a pretty fascinating message chain. The original inventor chimes in at the end.
The nik-link uses a bell crank to compress the top of the coil over as well as the coil over compressing from the bottom a-arm. This gives more shock travel to control the spring they say. The ARB is a tubular bar bent downward at one end and is mounted across the chassis connected to the bell cranks on either side. When the suspension moves the bar bends (bows) causing roll resistance.
ubrben (Automotive)
27 Jul 04 17:50
This is what I hate about the whole patenting system. The ‘nik link’ is identical in concept to the front suspension system Andrew Thorby designed for the early 90s Van Diemen Sports 200 car. He subsequently used the design on the Lister Storm LMP
LMP900 (Automotive)
4 Aug 04 13:25
I did indeed use it on the Van Diemen and the Lister. There are a number of benefits, but on the front of the Van Diemen (and presumably the Radical) it allowed the good motion ratio of a pushrod linkage with the chassis simplicity of a simple double A-arm/coilover layout. Didn’t realise it was patentable though….
Andy