Current Parts / Specs & Personal Bests

Submitted by shredjesse on Tue, 08/09/2022 - 14:16

Jesse's 1999 C5 Corvette in it's current state of modification at the Ridge Motorsports Park

The C5 corvette came to me stock. Painfully stock, as in still had a tape deck in it stock. A lot of basics had to go or be sorted out to improve the drive quality in general. The following is a rolling list of upgrades and noteworthy maintenance that has been done to the car.

Body
- Trackspec T1 Hood Louvers
  - Custom vents over the wheel wells out to louvers.
- Non Aero Configuration (OnGrid GT class, etc etc)
  - Rear spoiler + Self made chassis mounts
- Aero Configuration (SCCA Max2, etc etc)
  - 9LR Splitter
    - Custom air dam
    - DIY Aluminum splitter ramps / "diffusers"
  - Richard Kiing Cannards (as needed to tune balance / bite)
  - Wing
    - 9 Lives Racing 71" Wing and CFD Endplates
    - Self Made Chassis Mount
Suspension / Chassis
- Borg Motorsports Premium Delrin bushing kit
- QA1 Proma Star Double Adjustable Coilovers (Install Guide + Torque Specs)
  - Aero configuration
    - 700lb front springs (Eibach)
    - 750lb rear springs (Eibach)
  - Non aero configuration
    - 550lb front springs (QA1)
    - 650lb rear springs (Eibach)
- Progress Suspension Sway bars
  - 35mm front 625 #/inch
  - 25mm rear
    - (soft setting) 408 #/inch
    - (medium setting) 480 #/inch (Current setting, balanced)
    - (hard setting) 552 #/inch
- AfterDarkSpeed Tierod/Toe/Bumpsteer Kit
  - Rear offset, both adjustable
- SKF Front Wheel Hubs
- MPI V1 Rear Wheel Hubs
Brakes
- Cadillac Brembo Brakes + 14" C6 Z06 Sized Rotors (FRONT)
  - KNS Blank Rotors
- C6 Z51 Rear brake brackets + 13" Rotors (13") (REAR)
- Stock Calipers Rear
- Motul RBF 600 Brake Fluid
- Powerstop Braided Brake Lines
- EBC SR-11 Brake Pads
Engine, Intake & Exhaust
- Tick Performance SNS TorqueMax Stage3 cam (235/243 | .630"/.610" | LSA111+2) (link)
- 243 Heads, lightly milled and refreshed by local machine shop.
- Upgraded Trunnion Bearings on the Roller Rockers
- LS6 Intake
- Summit SFI Balancer - pinned
- Oil Changes Mobil1 15w50 - 7.5 Quarts for track days - Changed every 3-4 track days, under 1000 miles per oil change.
- AC-Delco 41-110 Spark plugs + New wires Sep 25 2022
- Kooks Longtube 1-7/8" headers
- Custom midpipe with X-pipe
- Z06 Titanium Mufflers W/Bypass mod
- AMT Motorsports Engine Mounts
- Simple Cold Air Intake Bracket with dual 3"x7" K&N Cone Filters
Wheels / Tires (two sets)
- 18"x11" Apex SM10 ET57 Wheels
- Tires
  - Track Days - Continental Extreme Contact Force 315/30R18
  - Time Attack - Max2 - Vitour Tempesta P1 315/30R18
  - Time Attack - OnGrid GT - Vitour Tempesta P1 295/30R18 front, 315/30R18 rear
Transmission
- LS7 Clutch + Aluminum Flywheel
- Tick Master Clutch Cylinder
- MGW Short Throw Shifter
- Trans Rebuilt June 2025
  - Billet 1-2
  - Steel 3-4
  - Carbon Synchros
  - Bronze shift keys
- Torque tube
  - Swapped to 12mm
  - Grade 12.9 12mm bolts
  - Heavy duty input shaft
  - All new SKF bearings
  - New OEM Guibos
Diff
- Reviewed, issue free and no need to rebuild June 2025
- 3.4 differential ratio.
- Differential Fluid Mobil 75W140
- AMT Motorsports Diff Mount
Interior
- Trackspec Full Cage
- Racetech 4000W Bucket seat (Drivers)
- AMT Motorsports Seat Mount (Drivers)
- Crow 5 point 3" Harnesses (Both sides)
- IKON Motorsports Seat (Passenger, Amazon, Beige)
- C5 low mount racing seat bracket (passenger)
- Interior stripped per SCCA Max 2 class rules with a rollcage
- Rear tub removed for superior tranaxle access.
Other
- Heel/Toe Brake and Gas pedal (used off ebay, unknown mfg)
- True Focus Fabrication Coolant Expansion Tank

Podium Finishes, Records & Personal Best Times

Now that I've hit so many different tracks up and down the west coast, I've got a bunch of PB times to keep track of. Add on competing in Time Trials / Time Attack and even snagging a few records... I've got a lot to keep track of! So, in the interest of making my life easier, here's all my times from all the various tracks. Please note that some times were set at very different points in the development of the C5 Corvette, so some times may seem pretty quick, while others seem out of place by comparison.

Competition Finishes (Podium)

DATE	TIME	Track	Org & Class	POSITION	NOTES / EXCUSES
2024/04/	1:26.359	Thunderhill West (FULL CCW)	SCCA Max 2	3rd	First time here ever, Falken 615s
2024/04/0	1:26.447	Thunderhill West (FULL CCW)	SCCA Max 2	2nd	Used tires from track vendor in smaller width, much hotter day
2024/09/08	1:25.926	Thunderhill West (FULL CCW)	SCCA Max 2	2nd	Conti ECF
2024/09/09	1:24.946	Thunderhill West (FULL CCW)	SCCA Max 2	2nd	Conti ECF
2025/09/13	1:22.98	Thunderhill West (FULL CCW)	SCCA Max 2	1st	Vitour P1, 92 degree day
2025/09/14	1:05.39	Thunderhill West (Bypass CCW)	SCCA Max 2	1st	Vitour P1, 94 degree day

Class/Track Records:

TRACK	TIME	LINK	DATE (Y/M/D)	Record	NOTES / EXCUSES
Thunderhill West (Full CCW)	1:22.98	RB	2025/09/13	SCCA Max 2	Vitour P1, 92 degree peak temperatures.
Thunderhill West (Bypass CCW)	1:05.39	RB	2025/09/14	SCCA Max 2 & SCCA Track Overall	Vitour P1, 94 degree peak temperatures

Personal Bests:

TRACK	TIME	LINK	DATE (Y/M/D)	NOTES / EXCUSES
PIR (Chicane)	1:26.72	RB	2025/06/27	65-70 degree afternoon, Vitour P1's (Fresh)
The Ridge	1:48.89	RB	2025/09/06	Vitour P1s, 75 degree day overcast on perfectly seasoned Vitour P1's. Non-aero configuration. More time on the table once I come back with aero!
ORP (CCW)	1:53.53	RB	2025/07/16	Vitour P1s, 78 degree day with modest breeze. On repave which is supposedly slower.
Thunderhill West	1:22.91	RB	2025/09/13	Transponder confirmed, SCCA Max2 class record at the time
Thunderhull West (Bypass)	1:05.39	RB	2025/09/14	Transponder confirmed, SCCA Max2 class record & track record at the time.
Thunderhill East (Cyclone)	2:05.307	TA	2024/03/10	Falken 615s.
Thunderhill East (Bypass)	2:03.696	TA	2023/11/26	Falken 615s, no wing.
Streets of Willow CCW	1:25.969	TA	2024/11/18	Falken 615s, no wing.
Streets of Willow CW	1:25.050	TA	2023/06/18 (?)	Have faster times on GoPro, but 10hz GPS data is reliable. Falken 615s, no wing.
Laguna Seca	1:45.170	TA	08/30/2024	Very early track day, need to get back!
Buttonwillow CW1	2:10.253	TA	2023/05/05 (?)	Star Mazda Layout, IE: Longest version of the track. Pre-aero and HCI.
Buttonwillow CW13	2:16:16	YT	2022/10/02	3rd track day ever! 104 Degree day on 300tw tires. Pre almost everything. I really need to go reset this number!

NOTE: All times are logged with at least 10hz GPS, if not 25hz, and if not backed up by transponder! Only tracks I haven't been to in a long time are timed on video.