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BGH GEARTECH
FORD GEARBOX SPECIALIST
Modified * Improved * Original & Special Ratio * Sports & Racing Gearboxes
This page contains details of the excellent gearboxes produced by BGH
Geartech (Brian G Hill). Disclaimer - I have no connection nor vested interest
whatsoever with BGH other than as an extremely satisfied customer
BGH produce a range of close ratio uprated gearboxes based on Ford gearboxes.
These are especially suited to competition and kit car usage and are relatively
inexpensive compared to the alternatives. As well as improved ratios, the
gearboxes are modifed to improve lubrication (and therefore strength) the
quality of the synchromesh and shift as well as a non-loss breathing
system.
If your first gear is so low it is useless or if your engine is always falling
off the cam, you probably need a close ratio gearbox, or at least one with
a higher first gear. When you have a peaky engine, a close ratio gearbox
transforms the way the car can be driven, the speeds in each gear also go
up substantially, which helps in the traffic lights grand prix. If you're
are in competition, a close ratios gearbox is just about essential.
In addition to their excellent close and ultra close ratio gearboxes BGH
also offer an exchange rebuild service for standard Ford gearboxes at very
competitive rates. You will not find BGH on the web, nor do they use computers
in manufacturing, what you will find is honest no-bullshit advice based on
many years of experience and a high quality product. Brian Hill was instrumental
in designing the six speed gearbox currently used by Caterham Cars and is
an experienced engineer and designer of the 'old-school'..
BGH also provide a driveshaft manufacture and differential service 'SHAFTTECH'
to mate any type of diff or transaxle to any kind of hub. If you are having
a problem mating a Renault transaxle to Cosworth hubs or any problem of this
nature, give Brian a call.
I have personal experience of the BGH products as well as those from other
manufacturers and would use a BGH gearbox in preference. BGH have featured
in CCC magazine and his gearboxes have been used to good effect in some of
the staff cars there. They are the best kept secret in the gearbox market,
I hope this page helps in bringing these excellent products to a greater
exposure.
BGH Gearbox Range
1600cc CORTINA/2000E/1600E/MEXICO/ELAN 4 SPEED
| Code | Description | 4th | 3rd | 2nd | 1st | Price |
| *B1 | 2000E Ratios | 1.0 | 1.397 | 2.01 | 2.97 | £260 |
| *B2 | Sporting Close | 1.0 | 1.283 | 1.845 | 2.815 | £360 |
| *B3 | Bullet Equivalent | 1.0 | 1.23 | 1.64 | 2.50 | £460 |
| *B4 | Ultra Close | 1.0 | 1.178 | 1.438 | 2.13 or 2.56 | £485 |
2000cc RS2000/CORTINA 2.0 4 SPEED
| Code | Description | 4th | 3rd | 2nd | 1st | Price |
| *C1 | Long 1st RS2000 | 1.0 | 1.37 | 1.97 | 2.98 | £260 |
| *C2 | Sporting Close | 1.0 | 1.26 | 1.81 | 2.83 | £360 |
| *C3 | Rocket Equivalent | 1.0 | 1.23 | 1.65 | 2.58 | £460 |
2.8/3.0 CAPRI/GRANADA 4 SPEED
| Code | Description | 4th | 3rd | 2nd | 1st | Price |
| *D1 | Standard Ratio | 1.0 | 1.412 | 1.942 | 3.16 | £260 |
| *D2 | Sporting Close | 1.0 | 1.26 | 1.774 | 2.83 | £360 |
| *D3 | Racing Close | 1.0 | 1.238 | 1.63 | 2.32 | £460 |
SIERRA TYPE 9/N (PRE MT75) 5 SPEED
| Code | Description | 5th | 4th | 3rd | 2nd | 1st | Regular | H/Duty |
| E1 | 2.0 Standard | .820 | 1.0 | 1.37 | 1.97 | 3.65 | £295 | ------- |
| E2 | 2.0 Long 1st | .820 | 1.0 | 1.37 | 1.97 | 2.98 | £460 | £560 |
| *E4 | 2.0 Rocket 5 | .882/.909 | 1.0 | 1.23 | 1.65 | 2.58 | ------ | £760 |
| E5 | 2.8 Standard | .825 | 1.0 | 1.26 | 1.81 | 3.36 | £395 | ------- |
| E5A | 2.8 Scorpio | .825 | 1.0 | 1.26 | 1.81 | 3.36 | £445 | £495 |
| E6 | 2.8 Sporting Close | .85/.87 | 1.0 | 1.26 | 1.81 | 2.80 | £560 | £660 |
Example rev. drops for standard gearbox at various RPM limits
| When changing gear at:- | 5000 | 6000 | 7000 | 8000 |
| To 2nd Revs drop to | 2690 | 3230 | 3770 | 4310 |
| To 3rd Revs drop to | 3470 | 4170 | 4860 | 5560 |
| To 4th Revs drop to | 3640 | 4370 | 5100 | 5830 |
| To 5th Revs drop to | 4100 | 4920 | 5740 | 6560 |
Example rev drops for rocket 5 gearbox at various RPM limits
| When changing gear at :- | 5000 | 6000 | 7000 | 8000 |
| To 2nd Revs drop to | 3170 | 3810 | 4440 | 5080 |
| To 3rd Revs drop to | 3750 | 4500 | 5250 | 6000 |
| To 4th Revs drop to | 4060 | 4870 | 5690 | 6500 |
| To 5th Revs drop to | 4400 | 5280 | 6160 | 7040 |
Comparison of 1st to 2nd gear shift at 7000RPM
Standard box drops to 3770RPM
Long 1st box drops to 4476RPM
Rocket5 box drops to 4450RPM (well on the cam!)
To Contact BGH
Geartech
01580 714114
BGH Geartech
Red Roofs
New Road
Cranbrook
Kent
TN17 3LE