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F-Body Road Racing and Autocross Forums _ General Discussion _ Heidts Pro-G IRS 1999 Camaro

Posted by: dojob Oct 31 2018, 06:20 PM

MOD LIST:
1999 Chevrolet Camaro by Heidts Hot Rod & Muscle Car Parts

Suspension: • Heidts Pro-G IRS • Heidts tubular K-member made from DOM tubing that is reinforced with gussets for strength needed in performance driving. • Heidts tubular front upper control arms made from DOM tubing with brackets for coilover shocks • Heidts fabricated and gusseted front lower control arms with fully serviceable spherical joints • Heidts solid 1-3/8” front sway bar • Heidts fabricated transmission crossmember • Heidts 3 point strut tower brace • Heidts sub frame connectors • Alston Racing Roll cage • Ridetech triple adjustable shocks front and rear • Wildwood 6 piston front brakes, 13” Wilwood rotors • Wilwood 4 piston rear brakes, 12” Wilwood rotor

Powertrain: • LS3 525HP crate engine • Fast Induction intake, throttle body and fuel rails • Texas Speed headers 1-7/8” • T56 Magnum 6 speed manual transmission • Currie 3.50 rear axle ratio, Ford 9” • Aluminum driveshaft • Twin disc clutch • Custom dual exhaust with Magnaflow mufflers

Other • Corbeau racing seats • Falken Azenis RT615K+ tires (315/30zR18 • 18x11 Wheels

https://www.youtube.com/watch?v=4ZsBr5a1cuo

Posted by: ESPCamaro Oct 31 2018, 11:40 PM

Is this your car?

Posted by: dojob Nov 1 2018, 11:03 AM

QUOTE (ESPCamaro @ Oct 31 2018, 07:40 PM) *
Is this your car?


No

Posted by: Dans93lt1 Nov 1 2018, 06:06 PM

They dump all that money into the car and it still has the enormous stock plastic shifter knob.

Posted by: dojob Nov 1 2018, 06:10 PM

needs track tested by a competent driver. i'd like it exposed as snake oil or validated as worth while

Posted by: ESPCamaro Nov 1 2018, 08:36 PM

QUOTE (dojob @ Nov 1 2018, 12:10 PM) *
needs track tested by a competent driver. i'd like it exposed as snake oil or validated as worth while


I’m no engineer but I’ll tackle that response here in a bit.

Posted by: ESPCamaro Nov 1 2018, 11:41 PM

Ok so I don’t know the guys at Heidts. And this is just my opinion. I guess I kind of know how business works in that most shops wouldn’t build something unless people were willing to buy it.
With that said that “mod list” has a bunch of stuff on it that isn’t what I’d consider a problem area.
Front: I think rules permitting an aftermarket lower control arm is a good idea. Now with that said if a budget friendly way of adding a spherical bearing set to the stock arms is available that’s definitely an option too.
The tire moves around a TON even with the old ESP setup of poly everywhere except the 1LE rubber equivalent in the caster bushing location. This is something easily visible at real time speeds on an autox course.
That’s it. That’s the problem area.

The upper arms very well may “bottom out” (against the wheel well area) sooner than stock upper control arms.


Pretty much everything on the list makes the car heavier.

Ultimately a lighter car with many more stock but optimized parts would outperform this car

Posted by: mikedamageinc Nov 1 2018, 11:46 PM

The passenger seat and belt is stock, all that money on the IRS r&d and they couldn't shell out to make it even. They also kept talking about how cheap the setup is and how it is better than a Vette. Even best case scenario they spent 20k on that car not including labor and a built c5 would cost that much and destroy it.

If they actually did any testing someone would have seen it, UMI and Strano cars are seen and people know how they perform, what about this one?

Posted by: slowTA Nov 2 2018, 01:42 AM

Their website kind of sucks for product info.

Posted by: SuperMacGuy Nov 2 2018, 05:45 PM

A watts link and full Strano setup probably can autocross or lap just as fast or faster than this, all other body mods/weights being equal. I didn't watch the vid, just looked like dudes riding around on public streets for 15 minutes - no track time or anything.

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