Setup for Road Course, Speed Stop and Autocross

[JusticePete]

We spent the weekend testing at Road America with the Lingefelter L/28 and our driver Danny Popp. The results were impressive and we got great data. The L/28 was brutally fast. We are going to make a few tweaks based on our data along with tire temps and input from our driver Danny Popp.

Videos from all Three Optima Events

Autocross



Speed Stop



Road Course



Data Points

Steady State Average Gs Across the Events and Lap Sectors 1.2 Gs. That is the AVERAGE. The theoretical limit on a street tire is 1.3Gs. we saw that number and then some across the events.
Top Speed on a Short Straight at Road America 148 MPH. That is screaming on the short straight.

Danny is extremely fast behind the wheel. His driving style is very aggressive. We found the front setup with -2.2 degrees of camber and caster adjustment maxed out to be virtually perfect. The tire temperatures inside to out were very even. The LPE motor puts down 590 at the rear wheels. Danny's style along with 590 all motor normally aspirated RWHP were roasting the inside of our rear tires. We'll dial down the rear camber to help Danny put down more power coming out of the turns. We have a few other tweaks in mind that we will share with the C5 community as soon as we test and get good data.

If the L/28 were a street car and not a street car wants to be a race car driven by a hot shoe we would leave the setup almost exactly as it is. Our intent is to still be a street car want to be a race car with even more bad attitude.



How did we do? I don't know if I am allowed to tell anyone. I will say we left with big smiles. BIG. We know we can coax more from the car. Not a lot, but with a driver like Danny every little bit we can give him he'll use 125% of

[TBone]

Any runs on the Road Course? I mean AutoCross is nice and all but man, you are at ROAD AMERICA!!

T.

[JusticePete]

Originally Posted by TBone

Any runs on the Road Course? I mean AutoCross is nice and all but man, you are at ROAD AMERICA!!

T.

Of course. The video from the road course and speed stop have lengthy non-action in the beginning and end. When I get back to the office I'll edit the dead space out and get them loaded. OPTIMA elected to run only a portion of the course to keep speeds down. We still hit 148 MPH on a cone restricted short course. Our road course runs were the fastest of the day. Not bad considering the number of prepared Vettes and Pro Touring cars, not to mention a very well driven all wheel drive Porsche Carerra GT. That car was so smooth in all the events. I tip my hat to the driver who chased the L/28 all day. He was not going to accept a second place finish

FYI: The RPMs were doubled due to a setup error. My bad.

[ShnOmac]

I love the sounds that car makes!

One of these days I'm going to have to fly somewhere so I can see that beast in action.

[So Cal Camaro]

Pete, that looked a whole lot better than that Autox course in Arlington....

[JusticePete]

Originally Posted by So Cal Camaro

Pete, that looked a whole lot better than that Autox course in Arlington....

The course in Arlington was perfect for autocrossing.... a FIAT Abarth

[JusticePete]

Originally Posted by ShnOmac

I love the sounds that car makes!

One of these days I'm going to have to fly somewhere so I can see that beast in action.

Spring Mountain the Saturday after SEMA or C5 Fest III in INDY. Better yet, do BOTH.

[ShnOmac]

Originally Posted by JusticePete

Spring Mountain the Saturday after SEMA or C5 Fest III in INDY. Better yet, do BOTH.

Hmmmmm very tempting.

[TBone]

Originally Posted by JusticePete

Of course. The video from the road course and speed stop have lengthy non-action in the beginning and end. When I get back to the office I'll edit the dead space out and get them loaded. OPTIMA elected to run only a portion of the course to keep speeds down. We still hit 148 MPH on a cone restricted short course. Our road course runs were the fastest of the day. Not bad considering the number of prepared Vettes and Pro Touring cars, not to mention a very well driven all wheel drive Porsche Carerra GT. That car was so smooth in all the events. I tip my hat to the driver who chased the L/28 all day. He was not going to accept a second place finish

FYI: The RPMs were doubled due to a setup error. My bad.

I look forward to that video.

Road America was my first road course and I am HOOOOOKED!!! I was hitting a buck fity on the front straight and around a buck forty on the back. Coming out of the Carousel and nailing the kink just right is sooooooo awesome. It really gets your adrenaline pumping. What a blast.

I am going to do Autobahn a few times here locally, South Course this month then full next, and head back to RA in October. Thank goodness for my Pedders XA Coilovers because they really allow me to attack that track and stay in control. But one has to remember that RA demands great brakes and rotors.

Man, I have goosebumps just thinking about RA. I got it bad.

I look forward to that video so I can study your drivers line.

T.

[JusticePete]

Originally Posted by TBone

I look forward to that video.

Road America was my first road course and I am HOOOOOKED!!! I was hitting a buck fity on the front straight and around a buck forty on the back. Coming out of the Carousel and nailing the kink just right is sooooooo awesome. It really gets your adrenaline pumping. What a blast.

I am going to do Autobahn a few times here locally, South Course this month then full next, and head back to RA in October. Thank goodness for my Pedders XA Coilovers because they really allow me to attack that track and stay in control. But one has to remember that RA demands great brakes and rotors.

Man, I have goosebumps just thinking about RA. I got it bad.

I look forward to that video so I can study your drivers line.

T.

[bannonm]

Originally Posted by TBone

I am going to do Autobahn a few times here locally, South Course this month then full next, and head back to RA in October.

I hope you have better than 245's up front for the south track. I toasted mine on the second day of a two day HPDE in May. It was 95 degrees that weekend and everything took a beating. I had all my suspension upgrades by then and was driving the car pretty hard. The fronts just couldn't keep up with what the suspension was capable of. The Autobahn is pretty tough on a 3800 pound whale.

[JusticePete]

Originally Posted by bannonm

I hope you have better than 245's up front for the south track. I toasted mine on the second day of a two day HPDE in May. It was 95 degrees that weekend and everything took a beating. I had all my suspension upgrades by then and was driving the car pretty hard. The fronts just couldn't keep up with what the suspension was capable of. The Autobahn is pretty tough on a 3800 pound whale.

I love to see and hear that our clients are putting Pedders bits to good use.

A square wheel and tire set up is the way to go. I love the 305/30/19/XL Bridgestone RE-11s on Forgelines. Too bad they are a 180 tread wear and outside the Optima rules We are getting good results with the ZL1 rears at all for corners.

[bannonm]

Originally Posted by JusticePete

I love to see and hear that our clients are putting Pedders bits to good use.

A square wheel and tire set up is the way to go. I love the 305/30/19/XL Bridgestone RE-11s on Forgelines. Too bad they are a 180 tread wear and outside the Optima rules We are getting good results with the ZL1 rears at all for corners.

Love the XAs for sure. I went with an 285/35-20 square setup on TSWs 20x10 using Pilot Super Sports. Keeps me in a more competitive bracket by sticking with at least a 200 tread wear in my club. I have not had the opportunity to test these out yet, hoping to do so soon. The Autobahn is available this Monday but I'm traveling for work so not sure if I can get the car prepped by then.

[JusticePete]

Originally Posted by bannonm

Love the XAs for sure. I went with an 285/35-20 square setup on TSWs 20x10 using Pilot Super Sports. Keeps me in a more competitive bracket by sticking with at least a 200 tread wear in my club. I have not had the opportunity to test these out yet, hoping to do so soon. The Autobahn is available this Monday but I'm traveling for work so not sure if I can get the car prepped by then.

Those are going to transform your car.

[BullF-16]

Hey Pete, got a question for you. I should be up and running in about a month hopefully with over 800rwhp but a hundred lbs heavier in the front with the iron LSX. I have decided that i want to maximize this car for the street/road course/auto x. Not real interested in going all out for the 1/4mile with my setup, cant really understand the point to it. I am interested in the L28 setup.

As you know, i have the Justice road course pkg and will drive down to see Heath for the ZL1 rear zway bar and toe links as well as the front trailing arm bushes with steel jackets. I also have the original Pedders Camaro wheel/tire setup.

So, what else do i need to get my car close to the L28 or at least close to or better than.....say..... a Z06? I also eventually plan on a brake upgrade.

Thanks Pete!

[JusticePete]

Bull,

Great question and one that is dependent on driving style and RWHP.

You have 200 more RWHP than the L/28 and the L/28 is a handfull with 'only' 590 normally aspirated RWHP.

We have Danny Popp behind the wheel and the two of us are working on the ideal setup. The ideal setup is driver dependent. Danny executes a driving style that is extremely aggressive. He runs in a range that is out of control for all but 99.99% of drivers. The fastest setup for Danny is not going to be right for for all but a handful of drivers. I have worked with some great drivers. Paul Tracy is hands down the most seasoned professional. John Buttermore, Chris Brannon and Stan Wilson are all outstanding. Chris and Danny are similar is style. John and Stan are the most analytical behind the wheel. Based on our data logging John Buttermore is the most consistent driver of the group. Over 40 laps at Gingerman in two different cars on the same day the difference between his fastest and slowest lap was 1/100th of a second. That is perfection behind the wheel. Danny may be the fastest when we are talking about a qualifying lap. Danny and John would want the car setup differently.

Seat time in a plane or car is essential. Hundreds of thousands of laps turn a talented driver into a fast driver. There is no replacement for seat time. If we are talking jets we are looking for more power for you Bull. We are talking insanely fast and powerful street car so we are talking about controlling the power you have. With the power and suspension you already have you can walk a Z06 as long as we can keep your car on track. For your car I think we move to the Z bar and arms. We'll use less negative camber in the rear so you can put power down. We may use 12kg rear coils, again to handle all that power you have. Long story short, we'll tweak your Justice suspension to suit your RWHP and driving skills. It will be loose enough to be fast, but not as loose as Danny's setup.

[BullF-16]

Originally Posted by JusticePete

Bull,

Great question and one that is dependent on driving style and RWHP.

You have 200 more RWHP than the L/28 and the L/28 is a handfull with 'only' 590 normally aspirated RWHP.

We have Danny Popp behind the wheel and the two of us are working on the ideal setup. The ideal setup is driver dependent. Danny executes a driving style that is extremely aggressive. He runs in a range that is out of control for all but 99.99% of drivers. The fastest setup for Danny is not going to be right for for all but a handful of drivers. I have worked with some great drivers. Paul Tracy is hands down the most seasoned professional. John Buttermore, Chris Brannon and Stan Wilson are all outstanding. Chris and Danny are similar is style. John and Stan are the most analytical behind the wheel. Based on our data logging John Buttermore is the most consistent driver of the group. Over 40 laps at Gingerman in two different cars on the same day the difference between his fastest and slowest lap was 1/100th of a second. That is perfection behind the wheel. Danny may be the fastest when we are talking about a qualifying lap. Danny and John would want the car setup differently.

Seat time in a plane or car is essential. Hundreds of thousands of laps turn a talented driver into a fast driver. There is no replacement for seat time. If we are talking jets we are looking for more power for you Bull. We are talking insanely fast and powerful street car so we are talking about controlling the power you have. With the power and suspension you already have you can walk a Z06 as long as we can keep your car on track. For your car I think we move to the Z bar and arms. We'll use less negative camber in the rear so you can put power down. We may use 12kg rear coils, again to handle all that power you have. Long story short, we'll tweak your Justice suspension to suit your RWHP and driving skills. It will be loose enough to be fast, but not as loose as Danny's setup.

Thanks Pete, good info and sounds like a plan. I'll let you know when the car is ready. Looks like throttle discipline will be important

[JusticePete]

Originally Posted by BullF-16

Looks like throttle discipline will be important

Not if you get a tire sponsor

[garcmol]

Bull needs a build thread, dammit! I find good info from you everywhere, but you really really really have to search for it

Can't wait til your back up and running

[TBone]

Originally Posted by bannonm

I hope you have better than 245's up front for the south track. I toasted mine on the second day of a two day HPDE in May. It was 95 degrees that weekend and everything took a beating. I had all my suspension upgrades by then and was driving the car pretty hard. The fronts just couldn't keep up with what the suspension was capable of. The Autobahn is pretty tough on a 3800 pound whale.

Why yes I do. I run 275/40/20F and 295/35/20R Invos. I ran this at RA earlier this year and they ran awesome. I am hoping to save up over the winter for some track specific tires/wheels for next year. I was thinking of going for more power but not real sure I need it.

T.

[BullF-16]

Originally Posted by JusticePete

Not if you get a tire sponsor

That would be nice. On a side note. I always try to find a silver lining to everything. Being down the last few months have allowed me to save a hundred bucks a week in fuel costs and have saved wear on my brand new RE-11s

Originally Posted by garcmol

Bull needs a build thread, dammit! I find good info from you everywhere, but you really really really have to search for it



Can't wait til your back up and running

Yes, i know. I just really, really, really hate paper work....i equate making a big build thread to paperwork. Lots of queep work. I have had a number of people PM me for info though. My main goal with my car is just a very well balanced car that performs well in all roles, just not one specific role. They do call the F-16 the "jack of all trades....master of none" which is very true

[JusticePete]

Videos from all Three Optima Events

Autocross



Speed Stop



Road Course

[PYROLYSIS]

Nice. Looks like the driver did a heck of a job handling a lot of horsepower. I can't tell whether he's a kamikaze driver or if the L28 is just that much of a beast! That exhaust should be recorded and blared out of rear bumper speakers on every turbo 4 cylinder 6th gen Camaro.

[Info@PeddersUSA.com]

Great job to everyone all around!

[JusticePete]

Originally Posted by PYROLYSIS

Nice. Looks like the driver did a heck of a job handling a lot of horsepower. I can't tell whether he's a kamikaze driver or if the L28 is just that much of a beast! That exhaust should be recorded and blared out of rear bumper speakers on every turbo 4 cylinder 6th gen Camaro.

Danny has no fear. He puts the car deep into a turn and stands on the brakes with two feet. As he is letting off the brakes he begins his turn. He expects the car to stick. Period. When he sees his line he puts both feet on the accelerator.

The difference between a kamikaze WWII pilot and Danny is Danny expects to go home when he finishes his run.