Justin Reed Racing DF Goblin

[Machine1515]

Did DF make the knuckle as well? That machined part from the shock to the knuckle is interesting. I would guess that the geometry has to remain the same so no space gained to run a wider tire?

 

[Desert Sasqwatch]

You can run as wide a tire as you want on the Goblin. The determining factor is the wheel backspacing to keep the rim from contacting the strut spring/perch. There are many builders running a 315mm width tire.

 

[Justinreed7]

I love love love your videos and usage of the car pretty much what I do with my fun cars.
I have a C5 and didn't know that consumables are so ridiculous, makes me want a goblin.
Thanks for the updates and that subframe looks amazing.
What class are you in for Gridlife btw?

I was only allowed to run advanced HPDE at gridlife. They don’t allow open wheel cars for time attack for some reason

 

[Justinreed7]

Did DF make the knuckle as well? That machined part from the shock to the knuckle is interesting. I would guess that the geometry has to remain the same so no space gained to run a wider tire?

Yeah it’s a machined aluminum spindle

 

[Justinreed7]

Car Setup for Talladega Gran Prix 2022 11/12/22
I forgot my Gopro at home so a passenger iphone video was the best i could do lol

Chassis:
Nine Lives Racing 48 inch Front Wing with dual element 10 degrees, 69 inch rear wing 10 degrees
500lb front springs 400lb rear springs
Brakes:
front-stock base cobalt rotors and caliper
rear- stock solstice rotors and caliper
Setup:
wastegate 16psi @425whp
1/8 toe in at front
0 toe in rear
-.5 front camber
-3 rear camber
275/35/15 Nankang AR-1s on 15x10 wheel
22psi cold front
26psi cold rear

Notes: Track is extremely abrasive but has decent grip. The first track day I've had when traffic wasn't an issue made me aware of my inferior brakes. Running full beans the brakes only last a lap and a half before shuttering the car violently and fading extremely fast. Other than that the car was happy all day with the setup working quite well. Fairly stable under braking with slight movement and a secure corner entry and planted center. Slightly loose upon playing with throttle mid corner for better turn on slower corners and slightly loose on corner exit mainly due to trying to put the power down.

 

[JSATX]

What brake pads? Are you running the stock brake booster setup?

 

[ctuinstra]

Surprised about the brakes.

 

[Justinreed7]

What brake pads? Are you running the stock brake booster setup?

Stock pads because they don’t make performance pads for the base model unfortunately. No brake booster since I’m running a wilwood pedal box. The pads are so glazed they’re practically useless unless you get at least some heat in them now

 

[Justinreed7]

Surprised about the brakes.

As was I. Just never had an open track like I did here to really push them to the limit for a few laps straight

 

[Desert Sasqwatch]

Would a set of drilled/slotted rotors and ceramic pads make a difference over the stock rotors and pads? Maybe?

Front Zinc Drill/Slot Brake Rotors + Ceramic Pads for Chevrolet Cobalt 2007-2010 | eBay

APF: Ceramic Carbon Fiber Brake Pads. APF All Performance Friction - Front Brake Kit - With Hardware.

www.ebay.com

Or these?

R1 Concepts Rear Brake Rotors Black Drill Slot For 2008-2010 Chevrolet Cobalt | eBay

Find many great new & used options and get the best deals for R1 Concepts Rear Brake Rotors Black Drill Slot For 2008-2010 Chevrolet Cobalt at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[Justinreed7]

 

[Justinreed7]

Would a set of drilled/slotted rotors and ceramic pads make a difference over the stock rotors and pads? Maybe?

Front Zinc Drill/Slot Brake Rotors + Ceramic Pads for Chevrolet Cobalt 2007-2010 | eBay

APF: Ceramic Carbon Fiber Brake Pads. APF All Performance Friction - Front Brake Kit - With Hardware.

www.ebay.com

Or these?

R1 Concepts Rear Brake Rotors Black Drill Slot For 2008-2010 Chevrolet Cobalt | eBay

Find many great new & used options and get the best deals for R1 Concepts Rear Brake Rotors Black Drill Slot For 2008-2010 Chevrolet Cobalt at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Those are ss brakes, I’m running stock base model brakes to fit my wheels

 

[ncgoblin]

@Justinreed7 what gauges are you monitoring and do you have a close up picture of the setup, looks clean.

Thanks

 

[comegetjoe]

15x10 5.5 backspace with 235 50 15s r888r the toyos run pretty wide so it works

Found the post, but from where did you purchase?

 

[Turbotalon1g]

Any updates?

 

[Desert Sasqwatch]

Justin, did you ever find the correct brakes? Curious to know if there is something track worthy that can hold up to the abuse a Goblin can dish out.

 

[Ross]

Less than 2 minutes, and my hands are sweating. Bloody el. Nice run, congrats on the win. #14 is a rocket.

 

[Ghostknife]

What a run!

 

[Ross]

There were risks taken at King of the Hill.

 

[Justinreed7]

Thanks guys! In case anyone is confused what they’re talking about, I’ll post the winning run below!
Pine Mountain hillclimb was one of the more frustrating hillclimbs for me due to the tight low speed corners and just terrible surface in general. Turbo is way to big for the tight switchbacks and am already looking into other turbo options to keep the car ahead of the field. There was some time left on the hill due to turbo lag for sure…. Here’s my setup sheet from the event as well! NOTE: this isn’t a magic setup and will not plug and play to yours. Saying this because I’ve had a few try and complain. Setups are relative to driving style and what the car will be doing.