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LIMIT+1 Time Attack —> Race Car Build (Car #2)

2385 Views 14 Replies 4 Participants Last post by  Limit+1, 
Limit+1
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Hello! My name is Ben! I am heading our initial track focused build. This car will be our main test mule for all of the components that we develop in house and also for the parts that we launch for partners. For this season we are transitioning it into a competitive time attack car fitting GridLife Falken Tire Club TR Rules. Following this seasons hopeful success, we will be taking the natural course of action and building this GR Corolla into a true W2W race car with the help of our sister company URW ( Home | URW - ULTIMA RACE WORKS ).
Below are our first steps!
We will be at Autobahn Country Club completing initial testing tomorrow!

Stock Suspension for Initial Test
Wheel Car Sky Vehicle Tire

Front Camber Bolts
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GR Corolla Front Camber Adjustment Bolts

Crucial for any vehicle being used for track! Allows adjustment up to -3.2 degrees of front camber at stock ride height!
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Auto part Fashion accessory Metal Font Titanium

Apex SM-10 18x10 Wheels With 255/40/18 Falken RT660 Tires
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4X Apex SM-10 Flow Formed Wheels 18"x10" ET40 with Lug Nuts and Hub-Ce

Package Deal!4X 18x10" SM-10 Flow Formed Wheels in Anthracite or Satin Black4X Hub Centric Centering Rings20X Black Race Lug NutsIf your order is affected by a backorder you will be notified!Need Tires? We Can Help!Email us at [email protected]
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Tire Wheel Vehicle Car Automotive lighting

CE Hood
Available Soon
Car Tire Wheel Land vehicle Vehicle

CE Spoiler
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GR Corolla Circuit Edition Rear Spoiler W/ Mounting Kit

Direct from our connections deep inside Toyota to our facility where the parts are inspected and re-packed to ensure that they make it safely to you un-damaged (Toyota literally just puts the bare spoiler in a cardboard box with no padding). An installation guide is included with every...
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Pagid RST 3 Pads Front and Rear + GyroDisc Rotors
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Pagid Racing RST 3 GR Corolla FRONT Brake Pads

RST 3 is a medium-high friction metal-ceramic compound containing steel fibers and is therefore the perfect complement of the RST product family. It captivates by its low heat conductivity. NOT RECCOMENDED FOR STREET USE DUE TO ELEVATED LEVELS OF DUST AND NOISE.
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Pagid Racing RST 3 GR Corolla REAR Brake Pads

RST 3 is a medium-high friction metal-ceramic compound containing steel fibers and is therefore the perfect complement of the RST product family. It captivates by its low heat conductivity. NOT RECCOMENDED FOR STREET USE DUE TO ELEVATED LEVELS OF DUST AND NOISE.
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limitplus1.com

GiroDisc GR Corolla Front Rotors (Pre-Assembled)

Although the OEM GR Corolla Rotors are a 2-piece design, the hat and ring cannot be seperated for replacement purposes. In addition to all of the GiroDisc benefits, after purchasing your initial complete set of rotors, you are able to purchase just the friction rings and re-use the center hats...
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Endless RF650 Brake Fluid
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Endless RF650 Racing Brake Fluid

Directly compatible with your GR Corolla. Reccomend a quantity of 2 for a complete system flush. Even though this fluid is more expensive youll save time and money in the long run since RF650 can last 3x as long as Motul RBF Fluid!All of Porsche's factory-built race cars come with Endless RF-650...
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Vehicle Car Grille Hood Automotive lighting


Not Pictured-
BMC Air Filter
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BMC GR Corolla Air Filter (OE Style)

Intended to be installed in the vehicle's original airbox to replace the OEM air filter. It is made of highly performing materials that allow an increased air flow combined with a more efficient filtration, guaranteeing containment of all impurities from as small as 7 microns (compared to OEM's...
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Liquimoly 5W-30
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Liqui Moly Special Tec 5W-30 Full Synthetic Oil Change Kit W/ OEM Filt

Do you use GR Corolla as the sports car it was intended to be? Is it more than just your daily driver and do you take it to high RPM every drive cycle? Then this oil change kit is for you. Fully synthetic, high-tech low-viscosity motor oil. With advanced wear-protection formula. Fastest...
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Ill keep this post active with updates and test results!
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Limit+1
Here’s some footage from our initial on track shakedown. We were able to run casual 1:37s on Autobahn Country Club’s South Track. That’s about 4 seconds off podium times in Gridlife’s Club TR Time Attack class and a hair faster than Spec Miata. The stock suspension was an obvious weakness. We’ll be back next weekend to see how much time can be shaved off with the addition of race dampers!


#Limitplus1 #GRCorolla #Autobahncc #gridlifeclubtr #clubtr #gridlife
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López de Santa Anna
Limit+1 said:
Here’s some footage from our initial on track shakedown. We were able to run casual 1:37s on Autobahn Country Club’s South Track. That’s about 4 seconds off podium times in Gridlife’s Club TR Time Attack class and a hair faster than Spec Miata. The stock suspension was an obvious weakness. We’ll be back next weekend to see how much time can be shaved off with the addition of race dampers!


#Limitplus1 #GRCorolla #Autobahncc #gridlifeclubtr #clubtr #gridlife
Click to expand...
Hey Ben!

What dampeners are you going with? Penske7500/8300?

What did the tire wear look like? Did you have a full 3.2 of negative camber?
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Limit+1
López de Santa Anna said:
Hey Ben!

What dampeners are you going with? Penske7500/8300?

What did the tire wear look like? Did you have a full 3.2 of negative camber?
Click to expand...
We are testing suspension from a few different manufacturers but will likely end up with Motion Control Suspension due to the relationship and experience we have built with them in other areas of Motorsport.
Current alignment specs are 3.2 degrees front 1.9 rear. Front toe is 0. Rear is slightly in.
could use more camber both front and rear. We expect to run about 4 degrees up front.
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López de Santa Anna
Very cool, looking forward to the suspension development.

Are you targeting Hz? stock spring rate? increased spring rate but at same ratio front to rear?

I would be very interested in the damp dynos if you ever go down that hole.
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Limit+1
López de Santa Anna said:
Very cool, looking forward to the suspension development.

Are you targeting Hz? stock spring rate? increased spring rate but at same ratio front to rear?

I would be very interested in the damp dynos if you ever go down that hole.
Click to expand...
We think we have initial spring rate narrowed down for a decent starting point. 🤞We’ll post results.
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A
Limit+1 said:
Here’s some footage from our initial on track shakedown.
Click to expand...
Lol @ the collision detected call from Toyota! Is there any way to turn that off when your on track?

Also did you experience any ITCC overheat warnings?
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Limit+1
AE86Guy said:
Lol @ the collision detected call from Toyota! Is there any way to turn that off when your on track?

Also did you experience any ITCC overheat warnings?
Click to expand...
You can opt out by pressing the SOS button.

No overheating during the single 15 minute session we drove. Although we do have drivetrain cooling systems in the works!
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problemzerg
Limit+1 said:
You can opt out by pressing the SOS button.

No overheating during the single 15 minute session we drove. Although we do have drivetrain cooling systems in the works!
Click to expand...
Can you explain what you mean by opt out? I've been encountering this emergency services issue during my autocross runs
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Limit+1
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Here we go again! This Friday we will be testing suspension from Fortune Auto which is now available here:
510-
https://limitplus1.com/products/fortune-auto-510-series-gr-corolla-coilovers
500-
https://limitplus1.com/products/fortune-auto-500-series-gr-corolla-coilovers
We went with the fully optioned out 510 series featuring caster increasing camber plates and swift springs.

Camera accessory Window Automotive tire Auto part Font


Product Automotive lighting Tool Audio equipment Nipper


Blue Auto part Camera accessory Technology Electric blue


Photograph Light Camera accessory Font Electric blue


Heres the setup-
Ride Height Adjustment & Corner Balance with 170LBS in the drivers seat. Set 1/8" Rake measured from the pinch welds.

Tire Wheel Vehicle Grille Hood


Pretty Sharp!

Alignment-
4 Degrees Front Camber
0mm Front Toe
8ish Degrees Caster (4 more than stock!)
3 Degrees Rear Camber
3mm Total Rear Toe

7 clicks from soft front
10 clicks from soft rear

Tire Wheel Car Vehicle Automotive tire


We also have GR-FOUR Vinyl Rocker Panel Inlays in stock!
limitplus1.com

GR-FOUR - GR Corolla Rocker Panel Vinyl Inlay

Comes in a sheet of 3 and includes surface preparation wipes!Cut from SMART1000 Vinyl - 2.0 mil premium high-performance cast vinyl film on a 78# kraft liner. - Lasts up to 9-years outdoors.
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Tire Wheel Vehicle Motor vehicle Automotive tire


We also installed ARP extended wheel studs-
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ARP x LIMIT+1 GR Corolla Extended Wheel Studs - 5 Pack

2.6" Length - GR Corolla Fitment - ARP’s heat-treated 8740 chrome moly wheel studs are a much-needed replacement for any car engaged in racing or perfromance driving. They have a tensile strength of 190,000 psi and are able to easily handle the tremendous acceleration shock loads (shear) and...
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Heres the look!

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We have a few more mods to make before testing on friday. Stay tuned!
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A
Awesome! So 18x10+40 cleared the coilovers no problem? How much space do you have between them and the wheel?
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Limit+1
AE86Guy said:
Awesome! So 18x10+40 cleared the coilovers no problem? How much space do you have between them and the wheel?
Click to expand...
AE86Guy said:
Awesome! So 18x10+40 cleared the coilovers no problem? How much space do you have between them and the wheel?
Click to expand...
this is with a 20mm spacer. I did not test without.
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Excellent info much appreciated!
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Limit+1

Here’s some footage of initial testing of the Fortune Auto Suspension setup. Throughout the day we were able to fine tune the suspension to promote less push and understeer. We were blown away with how dialed and predictable the car was with these straight out of the box! Updates will follow as we make spring rate and sway bars changes. Links to get your own set of 500 and 510 series coilovers are below!
500-
https://limitplus1.com/.../fortune-auto-500-series-gr...

510-
https://limitplus1.com/.../fortune-auto-510-series-gr...

#GRcorolla #Limitplus1
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Limit+1
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And we were back to the track this past weekend! This time we ventured to Gingerman Raceway in Michigan to compete in Gridlife's Street Class Time Attack Series. After extracting everything that our GR Corolla had to offer in its current form, we ended up in P3 for the weekend with a fastest lap of 1:42.01 at Gingerman Raceway!
We will be back for Gridlife’s Midwest Festival in two weeks with more power and cooler IATs!


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