:. Additional Prosport Specs .:
Last Updated: 2005.03.17
Radical makes an 'owners manual' available for Prosport drivers on their website Here (Word .doc format)
There are a few bits and pieces left out of this that I've learned as I went along, so I thought I'd add what I've learned:
- Sway Bar Diameters:
The manual references different sized bars, but doesn't say anything about what those sizes are:
| Small: |
5/8" |
| Medium: |
3/4" |
| Large: |
7/8" |
| Note: These sizes hold true for Nik and Sway bar sizes from Radical. |
- Wheelbase: 87" *check*
- Caster: NonAdjustable, ___ Degrees.
- Ackerman: __________
- Motion Ratios Spring/Shock-To-Wheel movement (my best est measurement)
| |
Front |
Rear |
| Clubsport (rear Swaybar) |
1.1:1 |
~0.75:1 |
| Prosport (Rear Nik-Bar) |
1.1:1 |
1.1:1 |
- Dive Planes
Radical has two different dive plane designs.
The first is the normal downforce version, which stops basically under the middle of the headlight cutout.
The high downforce version extends inward fairly far beyond the headlight.
- Spring Rates
Radical ships various spring combos with their cars.
250/400 - Standard Clubsport (with older cars)
300/350 - Standard Prosport
200 - soft front spring (Green)
250 - std clubsport front (Orange)
300 - std prosport front (Red)
350 - stiff front, std Prosport rear
400 - stiff rear
- Bolt Pattern 4 on 4.25"
- Throttle Cable for Carb'd R1 = Radical P/N# CA053 for Kawasaki
Item Weights
In an effort to compile a list of the weights of various components on the Radical,
I've been weighing various items on the car throughout the year. Here's what I've gotten so far:
| Component |
Weight (lbs) |
Lighter Alternative? |
Weight (lbs) |
Weight Savings (lbs) |
| Bodywork |
| Nose (w/ splitter, mirrors) |
47 |
Beasley |
30 |
17 |
| Tail |
45 |
Beasley |
30 |
15 |
| Diffuser (carbon-fiber) |
8 |
Beasley |
8 |
0 |
| Sidepods (Pair) |
26 |
Beasley |
18 |
6 |
| Wing w/ Endplates |
11 |
Stohr, others |
~6 |
~5 |
| Wing Support |
6 |
-- |
-- |
-- |
| Unsprung Weight |
| Control Arm - Rear Lower |
4 |
-- |
-- |
-- |
| Control Arm - Rear Upper |
1 |
-- |
-- |
-- |
| Control Arm - Front Lower |
4 |
-- |
-- |
-- |
| Control Arm - Front Upper |
1 |
-- |
-- |
-- |
| Upper Front Ctl Arm |
1 |
-- |
-- |
-- |
Front Uprights
(ea w/ bearing, w/ohub) |
4 |
?? |
-- |
-- |
Hubs
(ea w/ studs) |
3 |
?? |
-- |
-- |
Rear Uprights
(ea. w/ bearing) |
4.5 |
?? |
-- |
-- |
| Front Brake Rotor (Pair)(Vented) |
19 |
Various? |
12 |
10 |
| Rear Brake Rotor (Pair)(Solid) |
17 |
Various? |
10 |
6 |
| 8" Springs (all four) |
__ |
6" springs |
__ |
8 |
Wilwood 4-piston caliper
(all four) |
12 |
-- |
-- |
-- |
| Sprung Weight |
| Rear Swaybar (Med) |
4 |
-- |
-- |
-- |
| Front Nik Bar |
3 |
-- |
-- |
-- |
| Seat |
9 |
Beasley |
?? |
?? |
| Complete Halfshafts |
26# |
Doug@Fast Forward |
16 |
10 |
| Axles Only (pr) |
7 |
Doug@Fast Forward |
5 |
2 |
| Fuel Cell |
?? |
Fuel Safe
(Short Cell) |
?? |
~5 |
|
