914World Member Gear Set Library  
this page maintained by race914

Here is a collection of member 901 gear setups for Autocross, Street, and Track.   This 914World resource provides a consolidated listing of in-use gear sets, by application, as well as member contacts to support you when planning a new gear set for a new engine, a new track, etc.  Use this info to run a gear ratio model in the 914 901 Gear Ratio Workbook which is available in the Re-gearing tech article, and then tune your gear set for your car’s tire diameter, RPM, etc. 

If you’d like to contribute to the 'Gear Set Library', please post on the 914 901 Gear Ratios thread in the Paddock, and include:  Applicable Category, Track (if applicable), Engine (cc & cylinders), HP, Redline RPM, Tire Diameter, Weight w/Driver, 1st-5th gear codes and any short comment that you’d like to pass on, or better yet provide the link to the applicable 914World discussion thread.

 

 

Autocross Setups
(alphabetical by member name)

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread

 

Street Setups
(alphabetical by member name)

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
race914 3.2/6 220 6400 22.97

2200

 A F M S X

1/10/08

 Not good for long Hwy trips

 

Track Setups
(alphabetical by Track Name, then by member name)

Buttonwillow Raceway Park, CA California Speedway, CA Daytona International Speedway, FL Eagles Canyon Raceway, TX Firebird International Raceway, AZ
Hallet Motor Racing Circuit, OK Infineon Raceway, CA La Junta Raceway, CO Lime Rock Park, CT Mazda Raceway Laguna Seca, CA
Mid Ohio Sports Car Course, OH Motorsport Park Hastings, NE New Hampshire Motor Speedway, NH Phoenix International Raceway, AZ Pocono Raceway, PA
Portland International Raceway, OR Pueblo Motorsports Park, CO Road Atlanta, GA Roebling Road Raceway, GA Sebring International Raceway, FL
Summit Point Motorsports Park, WV Thunderhill Motorsports Park,CA Watkins Glen International, NY Willow Springs International Motorsports Park, CA

 

Buttonwillow Raceway Park, Buttonwillow, CA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Dan (Almaden Valley) 2.7/6 210 6800 25.4

2000

 A F KA V Z 1/10/08
race914 2141/4 150 6500 23.4

2100

 A F KA Q V 1/10/08
sww914 2056/4 140 7400 23.6

2161

 A F KA S X 1/10/08 Upgrading to “M” 3rd

 

California Speedway, Fontana, CA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Drew365 2.7/6 198 7500 25.4

2250

 A GA KA Q V 1/10/08 Hit redline 2/3 way down straight
sww914 2056/4 140 7400 23.6

2161

 A F KA S X 1/10/08 Upgrading to “M” 3rd

  

Daytona International Speedway, Daytona, FL

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
911quest 2.0/4 6000 21.5 A F M S Z 1/18/08 Ran @ RennSport Reunion III.  Z too high, plan to go to X
911quest 2.0/4 6000 21.5 A GA M U X 1/18/08 planned for next Daytona event
Racer Chris 1.8/4 180 7000 23

2020

 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23

2020

 A I M Q V 1/16/08 80% ZF LSD
rwjames 2.0/4 23 A F M S Z 1/22/08 Welded Diff, Z too high, plan to go to Y

 

Eagles Canyon Raceway, Decatur, TX

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
brant 2.0/6 160 7300 23.5

2027

 F J O S V

1/22/08

 TB differential, F is used, S is used on longest straight (not V)

 

Firebird International Raceway, Chandler, AZ

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread

 

Hallet Motor Racing Circuit, Jennings, OK

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
brant 2.0/6 160 7300 23.5

2027

 F J O S V

1/22/08

 TB differential, F is used in slowest corner, S is used on longest straight (not V)

 

Infineon Raceway, Napa, CA 

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Dan (Almaden Valley) 2.7/6 210 6800 25.4

2000

 A F KA V X 1/10/08
race914 2141/4 150 6500 23.4

2100

 A F M S X 1/10/08

 

La Junta Raceway, La Junta, CO

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
brant 2.0/6 160 7300 23.5

2027

 F J O S V

1/22/08

 TB differential, F is used in slowest corner, V is used on longest straight but not redlined

 

Lime Rock Park, Lakeville, CT

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Racer Chris 1.8/4 180 7000 23 2020 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23 2020 A I M Q V 1/16/08 80% ZF LSD
stownsen914 2.7/6 260 7500 25.5 1875 A KA P S U 1/18/08 A little tall

 

Mazda Raecway Laguna Seca, Monterey, CA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Dan (Almaden Valley) 2.7/6 210 6800 25.4

2000

 A F KA V X 1/10/08
grantsfo 2480/6 200 7400 25.2, 23 A F M S X 1/14/08 video with 25.2" tires  On 23" tires the car accelerates even faster and can be shifted into 5th gear on long straights as opposed to 4th.  Thread
race914 2141/4 150 6500 23.4

2100

 A F KA Q V 1/10/08 plan to upgrade to a GA 2nd, may need an H

 

Mid Ohio Sports Car Course, Lexington, OH

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Racer Chris 1.8/4 180 7000 23 2020 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23 2020 A I M Q V 1/16/08 80% ZF LSD

 

Motor Sport Park Hastings, Hastings, NE

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
brant 2.0/6 160 7300 23.5

2027

 F J O S V

1/22/08

 TB differential, F is used in slowest corner, S is used (not V)

 

New Hampshire Motor Speedway, Loudon, NH

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Racer Chris 1.8/4 180 7000 23 2020 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23 2020 A I M Q V 1/16/08 80% ZF LSD

 

Phoenix International Raceway, Phoenix, AZ

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread

 

Pocono Raceway, Long Pond, PA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

 Comments/Video/Discussion Thread
Racer Chris 1.8/4 180 7000 23 2020 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23 2020 A I M Q V 1/16/08 80% ZF LSD
stownsen914 2.7/6 260 7500 25.5

1875

 GA KA P S U 1/18/08 use all 5 gears

 

Portland International Raceway, Portland, OR

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread

 

Pueblo Motorsports Park, Pueblo, CO

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
brant 2.0/6 160 7300 23.5

2027

 F J O S V

1/22/08

 TB differential, F is used in slowest corner, V is used on longest straight but not redlined

 

Road Atlanta, Braselton, GA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
HAM Inc 1.8/4 7800 23 A GA KA Q V

1/20/08

Still tuning for this track
neilca 2.0/6 175 7500 23.6

1850

 A I N S X

1/14/08

 

Roebling Road Raceway, Bloomingdale, GA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
neilca 2.0/6 175 7500 23.6

1850

 A I N S X

1/14/08

 

Sebring International Raceway, Sebring, FL

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread

 

Summit Point Motorsports Park, Summit Point, WV

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Racer Chris 1.8/4 180 7000 23 2020 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23 2020 A I M Q V 1/16/08 80% ZF LSD

 

Thunderhill Raceway Park, Willows, CA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Dan (Almaden Valley) 2.7/6 210 6800 25.4

2000

 A F KA V Z 1/10/08
race914 2141/4 150 6500 23.4

2100

 A F M S X 1/10/08

 

Watkins Glen International, Watkins Glen, NY

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Racer Chris 1.8/4 180 7000 23 2020 A F KA Q X 1/16/08 80% ZF LSD
Racer Chris 1.8/4 180 8000 23 2020 A I M Q V 1/16/08 80% ZF LSD
stownsen914 2.7/6 260 7500 25.5

1875

 A KA P S U 1/18/08

 

Willow Springs International Motorsports Park, Willow Springs, CA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
Drew365 2.7/6 198 7500 25.4

2250

 A GA KA Q V 1/10/08
sww914 2056/4 140 7400 23.6

2161

 A F KA S X 1/10/08 Upgrading to “M” 3rd

 

Willow Springs International Motosports Park Streets of Willow, Willow Springs, CA

Member Engine
(cc/cylinders)		 HP Redline Tire Diameter

Weight
w/driver

 1st 2nd 3rd 4th 5th

date provided

Comments/Video/Discussion Thread
sww914 2056/4 140 7400 23.6

2161

 A F KA S X

1/10/08

 Upgrading to “M” 3rd