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it depends on the class. This car has very little rear weight, but we only have to manage 250ish Rwhp. We plan to test both weights and power levels. We aim to be as light as possible, and then detune power to that weight.
the hard part is that to get this car on a 275 in TT4, you have to weigh 3100. The advantage is that now we can place the weight advantageously, and have a better car with a lower Center of gravity, and less pendulum.
right now, full fuel, and driver, we’re roughly 2900lbs.
I have to ask, What organization will let you race without a cage? Why would anyone take this risk? Is this just an HPDE car?
I wouldn't even do serious HPDE without full safety! What is your life worth?
I have to ask, What organization will let you race without a cage? Why would anyone take this risk? Is this just an HPDE car?
I wouldn't even do serious HPDE without full safety! What is your life worth?
for what it's worth.....I've measure the steel b-pillar and the aluminum a-pillars in C5 and base c6, and the are structurally very close to that of 1.75" roll bar tubing. You don't have the front halo tying it all together of course, and no diagonals, but c5/c6 has excellent roll-over protection and I'd not hesitate to TT in one.
NASA TT is open passing, crazy **** happening all over the place, it's not like other TT and Autocross style events.
Carbon roof was worth around 50lbs, carbon fenders around 10lbs, but WC c5/c6 cars ran carbon everything including the inner tubs. I'd personally like to get a carbon hood and front fascia (it is very heavy) and I'd be happy with both the weight and the bias of my car
This was hard to do, added 15lbs, but dropped 1.5 seconds.
Car has a front aero push, plan to add some dive planes and splitter fences. Adding all of this drag is counter intuitive, but our top speed has increased feom
when it had no aero. 116mph-120.
For those familiar with Motorsports Ranch, the car laid down a 1:17.3, in traffic on a full tank. That’s knocking on the TT3 track record. I suspect we will run a low 16, even high 15.
Peak lat G was 1.6, peak long G under braking was 1.25! This is all on a stock 2pc batwing pan with improved Racing baffles, and overfill 1.5 qt. We will measure oil pressure next time out.
We tuned it up on the dyno today, for the unrestricted tune. This is a 70k mile Ls6, only mod being a dirty black wing and a set of long tubes.
Its about 10/15 low, in our opinion, but it could be any number of things. This engine could use a refresh, which we will do later, hopefully before it breaks!
My Ls6 was 70k street miles from a cts-v and then did 5 race seasons. It was about 360 on dyno before the ASA cam, now it is 380 hp and probably 85k miles. It'll last . I run a batwing pan and an accusump.
That is within about one or two horsepower of our OEM engine Spec Corvettes running the OEM exhaust manifolds, but various exhaust systems after that.....
I would say the car is right in the normal range.
Originally Posted by GSpeed
We tuned it up on the dyno today, for the unrestricted tune. This is a 70k mile Ls6, only mod being a dirty black wing and a set of long tubes.
Its about 10/15 low, in our opinion, but it could be any number of things. This engine could use a refresh, which we will do later, hopefully before it breaks!
03-24-2018, 11:26 PM
. I run a batwing pan and an accusump.
