Morning Mark,

This is more of a curiosity question. How long do your tires last when you are tracking them ?

It's so easy to improve stuff that Charlie has owned. LOL


Good to hear it's going the way you wanted it too.... but we know you'd get it handled!

The new Rival S seem to be good for about ten 15 - 20 minutes test sessions with me driving. I would think I will get two events out of a set of tires now that I can run full 20 minute tests without temp issues. If you are not going 10/10th I would think a set of tires should last you 4 - 5 events depending on the HP and mass of your car. I have junked a set of tires in a day in the past though. I tested some Michelin Super Sports and tore chunks out of them.

On a side note the new Rival S tires are WAY better than the old ones. With the current tires wars going on I would plan on new tires every year anyway.

A 2014 Z2/8 can wear out a set of tires in 80 minutes of track time going flat out. (Two tank fulls of fuel) A new Z06 will wear out the tires in 30 minutes and they are the best on the first two laps. (One tank full of fuel).

If you want to play you are going to need to pay....

Mark

Wow, that is incredible and thank you for the quick reply.

Talk about great body language!!!

http://i439.photobucket.com/albums/q...psqnhyrogb.jpg

I think I have my new computer wallpaper! :D

I guess my boss has never pushed his Ferrari 599 anywhere near the limits when he goes to the Elkhart Lake Ferrari every summer. That car is roughly 3700lbs with 600+ horsepower so I'm wondering if it would chunk the tires at 9 or 10/10ths too.

Do you think the Rival S tires would improve those numbers, Mark?

Indeed!!!

This makes me wonder, what kind of numbers did Hellfire generate once it was dialed-in?

Great numbers on the thermals. Heat management on a 1000hp bullet becomes a serious system-wide challenge.

Tires and tire wear is a tricky subject. First off not all Michelin Super Sports are the same. All of the OE tires are tuned to the car. The 345 I chunked on Hellfire was due to tire over temps due to 100 MPH tire spin. I'm sure Ferrari works with Michelin to tune a specific tire. The Michelin tires on the C7 Corvette are very unique from the off the shelf tires.

On your bosses car, there is big difference batween 9/10 and 10/10 on tire wear and car temps.

Right now on Rival S tires I would say JA 2.0 is faster than Hellfire on the old Rivals. Actually I have data from Waterford that it is. I will know when I get to Gingerman. Most of my data is from Gingerman so it will be a better comparison. On a high lever JA 2.0is 125 lbs heavier than HF. JA 2.0 is up 20 HP over Hellfire so that is a wash. The Rival S is much better than the Rivals so it should be fun to see the lap times.


The graph below show the Rivals (in Red) from OUSCI last year on a 85 degree day on Hellfire. The Blue data is the Rival S on JA 2.0 on Gingerman on a 60 degree day.

The X axis is Lateral Acceleration and the Y axis is Long Acceleration (Friction Circle)

http://i439.photobucket.com/albums/q...psemcuzodb.jpg

The data is kind of interesting that you can clearly see the max Lat numbers on the Rival S are up about 0.08 to 0.10 G in LH and RH turns. Because it was cold and Waterford is small the acceleration and Decel delta does not show up.

I know once I get the Rival S on a bigger track where I can get some heat in them they will really work well.

Mark

What will be on the front for Gingerman?

I Rival S on all 4 corners.

Mark

Informative as always, Mark! Thanks for sharing and I always learn something interesting "looking over your shoulder" with your projects!

In full disclosure right now I have Bridgestone RE-71s 275 on the front and Rivel S 335 on the rear. The car feels very balanced. I finally got the 275 Rival S yesterday so I'll run those this weekend.

Mark

any chance of you telling us what your "next" project is .... another f body or are you going to jump to something else again ,possibly another chevelle ?

Any chance you can tell me what oil to break in my crate ls3 480hp?

Also what fluid are you using on your t56 magnums?

On the ford 9" what fluids are you using? weight, synthetic, non syn, brand etc? Any break in diff fluid either?

Any chance you can tell me what temp to set my barbecue grill at to cook my turkey burgers?

Also what vitamins do you take before each race?

In your cereal what milk do you use? 2 percent? Whole milk? Almond milk? Any chopped up banana with it?

Thanks in advance,
Love Ahmad

:lmao:

Andrew

I can tell you it is not a Chevelle.... The next project will be a 1st Gen but after that we have had a lot of talk about what to do next.

It has run the gambit of C-6 ZR-1 to 32 Ford to AWD Porsche to a Pantera....

We are really looking at power to weight, CG and areo. A lot will depend on what OUSCI does with rules and if I still want to play in that space.

I have been in some sort of build for 10 years and I might take a break. I have some big projects at GM that are going to pull a lot of my spare time.

We have a lot of great cars that are turn key track cars.... Maybe I'll just buy one of those.... then tune it up.

Mark

Thomson breaks my engines in on normal engine oil (Like 2W30 Valvoline) then I run them on Redline 10W40.

I run D4 Redline oil in my trans

I run 90W120 normal oil in my diffs like Valvoline of similar with a big diff cooler. Keep it cool and the non-synthetic work great and are quiet. On a side note, I have had C&R build and dyno my last two diff. It is great. They are set up correctly, they are quiet and do not require break in. I have tried synthetics and they have always been noisy.

Mark

I grill stuff at medium heat or until crispy on the outside.

Flinstone chewables vitamans.

2 percent with blue berries.

:bitchslap:

Best info ever! Time to change my rear diff fluid.

I knew I had the heat wrong, thank you once again.

2nd Gen
 

Mark, I know you're tired of me asking (begging really) but please do a 2nd Gen!

Buy me one......:catfight:

They are great cars but with the new rules in OUSCI still not the best car to build and the 1st Gen is not also.

Mark

LMFAO Stielow for the win , take someone being a smartass and toss it back .
highly doubt that the big bosses at GM will allow you to tell us whats coming down the pipe ?

Ha ha that sounds like my brain -

"ooh, older Porsche LS1 !"
"ooh, 996 AWD Carrera Ls7 !"
"ooh, bare bones road race street rod thing"
"ooh, mid-engine Pickup with just a cab"
"ooh, rebodied C5 chassis !"
"Full frame under a '68 Cadillac El Dorado !"
"ooh, sleeper '95 Lincoln Mark VIII"

thank you for the help

Thank you. Im about to start adding fluids in my car. Its getting close. I was going to use some driven br30 break in oil and then switch to ls30 for the engine.

As far as the t56 goes i just started researching it.

The rear diff i was told to use reg diff oil but dse was saying they use driven 75w90 gear oil which is synthetic. Just trying to fig out why some use 75w90 and others use diff weight.

I'm with oldflm! Time to forward a generation!

So maybe name the next build Exploited? :unibrow:

Wait, what? Roadster! ROADSTER!!!! :idea:

Hint hint, wink wink.

http://gallery.nerdrods.com/Customer...ering_29_m.jpg
(click for bigger)

You should totally do the roadster.

Blueberries, huh? Hmmm, I've been told raisins are the way to go, but I can see how blueberries might help with antioxidants. They are a superfood. Wonder if you can mix them? :headscratch:

I think we're all in agreement on the 2% at least.

Thanks for the opinion!


Bill

Any further info available yet on this Spal 850W fan? Seems like it has worked for you in early testing.

could you tell me how you were able to control the dual fan setup with the gpmm harness? what else is needed to make this happen? It seems like the blue wire coming from the gpmm fuse box is labled fan but I'm not sure where to go from there

It was a busy week at SEMA and OUSCI. I wasn't really planning on doing OUSCI this year but I got a last minute invite and decided to go.

I didn't do that well and that has a lot to do with not practicing all summer. Doing AutoX once a year does not keep your skills up. It also does not help I don't like it....LOL.

Over all I was happy how well my JA 2.0 did.

Below is an overlay of Hellfire best lap and JA 2.0 best lap. JA was 2 seconds a lap faster than Hellfire. I know JA can go faster because my "best" lap was without power steering and a small amount of smoke coming up through the shifter boot. So with power steering and not worrying if the car was going to burst into flames I think it had another 2 seconds in it.

JA 2.0 Red Trace
Hellfire Blue Trace

http://i439.photobucket.com/albums/q...ps5tvhjzto.jpg

The experiment on cooling is a 100 % success. It was a bit cool on Sunday but the car came off the track with the water at 196 F and the oil at 217 F (I may need to go to a higher thermostat on the oil)

Just JA 2.0 data below

http://i439.photobucket.com/albums/q...psrqvw0qrn.jpg

I had a lot of questions on what I'm building next. Right now I'm going to finish my shop. I have been building cars for OUSCI for 7 years now and I need a break.

OUSCI was SEMA cars that can go to the track and now it is Track cars that can go to SEMA. I'm glad the OUSCI has grown and gotten new people in it. But, like I said a few times, a true vintage car will have a tough time against late model vehicles. JA 2.0 is a great (Original Sheet Metal) 69 Camaro that has been on 4 Power Tours and I put 1700 street miles on it this summer. I don't want to gut it and cut it all up to try to outrun an EVO, C-5 Corvette or a GTR. If I want a track car I'll build a track car.

The highest finishing "Muscle" car was Mike Dusold's very cool 67 Camaro. A tube frame, trans axle, Carbon Fiber, Twin Turbo, 2800 lb track car. I met Mike and he is a very cool smart guy. I love the car but I don't want to build or own a car like that right now.

It was great to see everyone and run the car a bit. Now it is time to put our toys away in Michigan and start plans for next year.

Mark

Glad you have fun and that JA 2.0 did so well, Mark. Very interesting to see it go faster than Hellfire given all the weight savings you had on Hellfire. Did you think it would be faster than Hellfire?

The BIG change is going from Rivals to Rival S tires. I think JA is making a tick more power but the corner exit speed is up a lot due to more grip and that is where most of the time is.

Mark

I've never used the GMPP harness stock. I think the blue wire just turns the fan on or off.

We reworked the system to do a Pulse Width Modified (PWM) fan. The ECM has a look up table on how hard the fan should run given engine coolant temp., A/C head pressure and Inlet air temp. Any of those 3 inputs determine the fan speed.

The old CTS-V used a twin fan set up and two relays. You could use the GMPP ECM for one fan and a discreet switch for the 2nd fan. Maybe one fan at 200 F and the 2nd fan at 210 F.

Mark

Great post as usual Mark!

I wish everyone could drive one of your last couple builds - Mayhem - Hellfire or Jackass 2.0..... THEN they'd finally understand the difference between what you're doing and what some of the competition at these events are driving.

Having driven Mayhem and Hellfire --- I didn't want to get out of either one of them.... I wanted to just keep driving to some Southern California beach.... or to New York City. They're smooth... powerful... comfortable... they don't rattle your brains out driving down the highway. A testament to the way they drive is that Charlie always has Shirley as shotgun! How many of you could get your wife to go on a 1500 mile trip with you if your car drove like a dump truck?

While I love my Mustang AT SPEED on the track -- I don't want to even drive it to the Pit gas pumps....it clunks, and chunks, and well.... it's an all out track car.

My respect level for you, and what you build, went to the moon (it was already over 200%) with 4 blocks of driving in stop and go traffic.

So if I put Rival S's on Hellfire....:bump:

If you put Rival S on Hellfire it will be faster. Hellfire is lighter, has 315 on the front and has better downforce.

Driving JA 2.0 is like Red Devil with Hellfire's power.

So, yes Charley Hellfire is still better...... If we swapped Hellfire to E-85 it would pick up 6% power. :D

Where does he go to get some talent????