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The Drive Home
Crossflow
Duratec
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North American Westfield Registry
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As I have discussed elsewhere in this website, I am a
big fan of Colin Chapman’s famous mantra “add lightness.” Carving weight
out of a car improves everything about it: acceleration, braking,
handling, fuel consumption, total load of Murphy’s Irish Cream Stout it
can carry without bottoming out, etc. When the decision was made to
rebuild the entire car and replace the engine with the Duratec, I decided
to get the car’s weight down a bit further to really shake things up.
First off, the Duratec with aluminum bell housing and Direct-to-Head
Throttle Bodies would cut about 20-30lbs from the front end. Second,
going with CAT Motorsport’s alloy front hubs, and 4-pot calipers, would
shave off another 15lbs. and third there were the ultra light MOG carbon
fiber seats… Okay, so now you see where this is going. In the interest
of research, I bought an accurate scale that records up to 30lbs. and
began the process of weighing old parts as I remove them and new parts as
they arrive from vendors. Below is the resulting chart that I will
continue to update over the next few months:
(Last updated 7/16/04)
|
Stock |
Replacement |
Savings |
| Interior |
Pounds |
Kilos |
Interior |
Pounds |
Kilos |
Pounds |
Kilos |
| Carpet set |
9.125 |
4.139 |
removed |
0 |
0 |
9.125 |
4.139 |
| Passenger seat w/
adjustable runners |
18.125 |
8.221 |
MOG carbon seat |
6.063 |
2.750 |
7.813 |
3.551 |
| Adjustable runners& fitting
kit |
4.250 |
1.92 |
| Driver seat w/
adjustable runners |
19.031 |
8.632 |
MOG carbon seat |
6.063 |
2.750 |
8.719 |
3.962 |
| Adjustable runners & fitting
kit |
4.250 |
1.92 |
| 2-Sabelt 6-pt harnesses |
12.522 |
5.680 |
2-Schroth Profi II
4-point ASM |
|
|
|
|
| VDO tach & speedo |
1.721 |
0.780 |
SPA Technique tach w/ speedo |
0.644 |
0.292 |
1.076 |
0.488 |
| |
|
|
|
|
|
|
|
| Duratec |
|
|
Raceline |
|
|
|
|
| Clutch |
2.040 |
0.924 |
AP HD clutch |
2.60 |
1.18 |
-0.56 |
-0.256 |
| Pressure plate |
7.340 |
3.330 |
AP HD PP |
9.46 |
4.29 |
-2.12 |
-0.96 |
| Flywheel |
27.050 |
12.270 |
Lt. weight flywheel |
10.37 |
4.705 |
16.68 |
7.565 |
| Complete clutch assembly |
36.430 |
16.524 |
Complete clutch assembly |
22.43 |
10.18 |
14.00 |
6.344 |
| Intake |
8.499 |
3.855 |
45mm DTH TB w/90mm airhorns |
5.34 |
2.42 |
3.159 |
1.435 |
| Sump |
11.41 |
5.175 |
Sump/windage tray assembly |
13.12 |
5.950 |
-1.71 |
-0.775 |
| |
|
|
Swirl pot |
1.57 |
0.714 |
-1.57 |
-0.714 |
| |
|
|
HP fuel pump |
1.10 |
0.498 |
-1.10 |
-0.498 |
| |
|
|
|
|
|
|
|
| Crossflow |
|
|
|
|
|
|
|
| 2-40DCOE & intake manifold |
16.149 |
7.325 |
45mm DTH TB w/90mm airhorns |
5.34 |
2.42 |
10.809 |
4.905 |
| SS exhaust manifold |
9.513 |
4.315 |
|
|
|
|
|
| Silencer |
10.847 |
4.920 |
Raceco Titanium silencer |
9.031 |
4.100 |
1.816 |
0.820 |
| Alternator |
|
|
|
|
|
|
|
| Starter (pre-engaged) |
8.741 |
3.965 |
|
|
|
|
|
| Radiator |
16.513 |
7.490 |
'84 VW Golf 1.3L aluminum
radiator |
3.870 |
1.755 |
12.643 |
5.735 |
| 12" Fan |
4.057 |
1.840 |
|
|
|
|
|
| Battery (Sears tractor) |
20.701 |
9.390 |
|
|
|
|
|
| Bell housing |
25.47 |
11.555 |
Alloy bell housing |
8.38 |
3.8 |
17.09 |
7.755 |
| |
|
|
|
|
|
|
|
| Body (new in '95) |
|
|
Body (new in '03) |
|
|
|
|
| 2-Swept wings w/ all hardware |
16.324 |
7.404 |
2-Cycle wings |
3.792 |
1.720 |
|
|
| 2-cycle wing brackets |
3.457 |
1.568 |
|
|
| 2-headlight brackets |
0.908 |
0.412 |
|
|
| 2- cycle wings w/ all hardware |
8.157 |
3.700 |
8.167 |
3.704 |
| Bonnet |
14.63 |
6.635 |
Bonnet |
9.56 |
4.335 |
5.071 |
2.300 |
| Nosecone |
9.12 |
4.135 |
Nosecone |
7.85 |
3.56 |
1.268 |
0.575 |
| Boot box |
5.38 |
2.440 |
Boot box |
4.78 |
2.17 |
0.595 |
0.270 |
| Locking lid |
7.68 |
3.49 |
Locking lid |
7.65 |
3.47 |
0.03 |
0.02 |
| |
|
|
|
|
|
|
|
| Miscellaneous |
|
|
|
|
|
|
|
| Wiper assembly (motor, drive,
arms, blades) |
5.595 |
2.538 |
|
|
|
|
|
| Washer bag |
0.573 |
0.260 |
removed |
0 |
0 |
0.573 |
0.260 |
| Air horns |
1.517 |
0.688 |
|
|
|
|
|
| Spare tire carrier |
2.02 |
0.918 |
removed |
0 |
0 |
2.020 |
0.918 |
| Spare tire (14x6 Two Gates
wheel & 185/60-14 Avon CR338) |
|
|
removed |
0 |
0 |
|
|
| Rollover bar |
7.26 |
3.295 |
Track-legal rollover bar |
|
|
|
|
| |
|
|
|
|
|
|
|
| Westfield 300mm steering wheel |
2.438 |
1.160 |
Alpha 270mm wheel w/horn
button & alloy hub |
2.563 |
1.110 |
-0.125 |
-0.050 |
| M16 front caliper |
8.600 |
3.908 |
CAT 4-pot alloy caliper |
4.156 |
1.885 |
8.888 (for 2) |
4.046 (for
2) |
| Front hub |
|
|
CAT alloy front hub |
|
|
|
|
| Front A-arms with stock
bushings |
|
|
CAT wide track A-arms w/ poly
bushings |
|
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