UMI Autocross Challenege 2021 - July 23-24

I saw that Ryan made a post here a few years ago about their 2018 Autocross event. I have been participating at it these past two years and I am signed up again this year. There are about a dozen thirdgen f-bodys on the list and also a good handful of 4th gens. I know they have a facebook page, an actual webpage, and there is a post on www.thirdgen.org about it too. Curious to see who from this web-forum might be going since I think I have only met one of you guys in person.


https://www.umimotorsportspark.com/autocrosschallenge/



This is a fantastic event. No wonder it sells out in a matter of hours. Two days of autocross with lunch and dinner meals provided by UMI. Two years ago they had an open house at their UMI shop and everyone could walk around and see all the machines they use to build the products as well as their project cars and test mules. Covid didn't allow that this year, so instead they put on a kind of outdoor party at the racetrack which included a country singer/concert, activities for kids, food trucks, and I think fireworks too. Great people who run the event and awesome participants.

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I usually get my butt kicked, but I know it comes with being a beginner and having a car that us a combination of street, strip, show, and autox platforms.

Who is signed up and what are ya bringing?
- I will have the red 87 Iroc there looking like this with hopefully some much better tires:
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New member - here from New Jersey

Hi guys. I recently became aware of this whole board via some friends of mine on thirdgen.org. This looks like a good forum for me to be on and I am hopeful to learn as much as I can by reading some of the forums. I will make sure to search for the info I have questions on, and I will always keep things tech related.

I've had my 1987 IROC for 21 years now and it was my high school car. Years later after I made it look real nice, I got bit by the quest for more performance. The car is indeed a true real-deal street car that I use for autocross, short course road racing, drag racing, car shows, and general street duty. I do not own a trailer and street drive it wherever I go. My parts selection is based on those factors, so I have quite the balancing act to do when it comes to picking parts.

I have competed in the Optima Batteries Search for the Ultimate Street Car series in 2016 and also in 2017 (both at New Jersey Motorsports park)
I have also competed in the UMI Performance Autocross challenge in 2019 and 2020.
I also have done a handful of other autocross events in NJ and PA as well.


I enjoy the heck out of the car, but I know it will never be competitive in any specific CAM-T class or competition. For me, it is all about building/driving the car to find its potential, and then learning what I can do to take it a step further.


As mentioned, its an 1987 IROC-Z. It has a 406 small block chevy with a dart block, dart heads, callies rotating assembly, full roller valvetrain, and I use the holley sniper efi. I know the automatic trans is not optimal, but it is what is staying in the car. it consists of a ProBuilt Automatics 700R4 built with their tiop level package, and a 9.5" Edge Racing 3,400 converter. A 3" driveshaft from Dennys, and a Moser 12 bolt rear axle with 33 spline axles nad a tru Track. It currently has 3.55 gears, but In February it will get a gear change from 3.55 to 3.91 gears. Also, the engine was built with nitrous in mind and it will indeed be getting a 150-200 wet shot soon.

Front:
I have the C4 HD 13" brake package up with Hawks HPS pads. UMI A-arms up front with Koni Yellow struts and UMI upper strut mounts. OEM sway bar with poly mounts. Replacement Moog springs and a 2" drop-spindle setup. Replaced everything to the steering system with new components and had the original IROC-Z steering box re-built this past winter so it is very on-point. Wheels are 18x8" with a Nitto 555 255/40/18 tire that I would love to replace.

Rear:
UMI adjustable lower control arms, UMI panhard bar, Founders performance upper panhard bar. OEM swaybar with poly mounts. Koni yellow rear shocks. Moog springs with 3/4 coil cut off. C4 rear brake conversion so 12" rotor with powerstop pads. 18x10" wheel with a 285/40/18 nitto 55 tire. Also looking to replace these in the spring.


Here are some photos:

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(IMG:https://live.staticflickr.com/65535/49900080406_c0efef3152_c.jpg)

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(IMG:https://live.staticflickr.com/65535/50269531676_c369c0fe6d_c.jpg)


(IMG:https://live.staticflickr.com/7113/27355806591_71c8967ff4_c.jpg)

(IMG:https://live.staticflickr.com/4445/37713056722_a617e759f7_c.jpg)

(IMG:https://live.staticflickr.com/65535/50055682841_ddbb67f597_c.jpg)




here is a link to some of my photo albums of events and my car's build over recent years:
https://www.flickr.com/photos/iroczman15/albums



I also have a youtube channel, and while I do not do any editing or creative video work, I do have some videos of my autocross runs over recent years. if you search through the "My videos" section. My username is the same as it is here IROCZman15

I am also on www.thirdgen.org using this username and I have a couple of long "build" threads and some racing info there along with photos, datalogs, videos, and tech info.

Glad to be a member here and looking forward to what I can learn after I spend some time reading.