The OneLapCamaro - Thoughts on SEMA and the Optima Invitational - Lateral-g Forums

James OLC · #1 11-13-2008, 09:11 PM

Here is a plot of the telemetry from the last time trial on the road course at Spring Mountain - three laps worth:

The green line is GPS Speed. Maximum that I saw was only 104 mph and from the data it was at under 6000 rpm midway down the back straight. I know that I was babying it (especially with my brake problems) but darn, I didn't think that I was taking it that easy.

The blue line is engine RPM. Like I said above, I was under 6000 rpm most (all) of the time. Lots more legs left...

The red line is lateral G's. Maximum positive (right) was 1.4, maximum left was 1.

It's interesting to look at it after the fact, it shows me two things... one - I was being way to easy on it and two - there is a lot of potential left in the car.

Mean 69 · #2 11-14-2008, 11:17 AM

Quote:

It's interesting to look at it after the fact, it shows me two things... one - I was being way to easy on it and two - there is a lot of potential left in the car.

Dude, you have nearly as many track miles on the car now as you have street miles, take it easy on yourself! It's a brand freaking new car!

And yes, there is no doubt in my mind that you have barely scratched the surface of the car's potential. With regard to the brakes, shoot me the numbers on the m/c bore sizes, and the caliper piston sizes (if you have them). Did the pedal feel solid? How much travel before you took up all of the hydraulic "slack?" What pads?

Awesome write-up, nicely done young man, all around.

Mark

James OLC · #3 11-14-2008, 12:20 PM

I know Mark. The whole datalogging thing can be a double edged sword... the data is great and can show you alot about what was going on and what you were doing, but it can also remind you of what you didn't do or what you did 'wrong'. The fact that my max speed was midway down the straight being a perfect example.

I think that I found the brake problem. There are so many potential variables with a new car - mc sizing, freshness, seating, etc. - that sometimes you have to start at the simple end of things and work your way to the more difficult possibilities. In my case it looks like the adjustability on the brake pedal ratio was off (4.7 vs 6.2). I'll swap that tonight and if the snow holds off I'll take it for a test drive tomorrow. Then I get to pull the exhaust and transmission...

Mean 69 · #4 11-14-2008, 01:49 PM

I suppose snow chains are completely out of the question!? Stay warm, drive safe. Spring is, err, just around the corner?

M

awr68 · #5 11-16-2008, 10:29 AM

James it was great to meet you and your wife! The car is amazing! You and the other guys certainly did a great job....and maintaining excelant build quality with the pressure of SEMA, my hats off to you! Very quality build that certainly had a well thought out plan from the start...it truely shows!

It was awesome to see it at the track! The car shows are nice....but seeing these cars in action....well that's just plain killer!!

GLad you made it home safe! Rest up a bit, fix the trans, and enjoy the car....you and the misses deserve it!!

**Spiffav8** · #6 11-16-2008, 10:56 AM

Quote:

Originally Posted by reboot04

Here is a plot of the telemetry from the last time trial on the road course at Spring Mountain - three laps worth:

The green line is GPS Speed. Maximum that I saw was only 104 mph and from the data it was at under 6000 rpm midway down the back straight. I know that I was babying it (especially with my brake problems) but darn, I didn't think that I was taking it that easy.

The blue line is engine RPM. Like I said above, I was under 6000 rpm most (all) of the time. Lots more legs left...

The red line is lateral G's. Maximum positive (right) was 1.4, maximum left was 1.

It's interesting to look at it after the fact, it shows me two things... one - I was being way to easy on it and two - there is a lot of potential left in the car.

That's COOL!

**Rybar** · #7 11-17-2008, 02:55 PM

James it's an amazing car, you should be very proud of yourself to get it all done and to the show and Optima challenge. It is a very stunning Camaro, one of the nicest in my opinion.

We should meet up one day as were not too far from eachother (I'd love to see your car and Fuel in person), Dave and I have been talking about meeting up for a while.