a14rgs
Hero member
- Location
- Wiltshire, UK
To complement his excellent chromed steel silencers for 120 and 180 models, Malcolm Cox is now manufacturing new collector boxes in various finishes to factory spec., as follows:
"These collector boxes are manufactured by Cox Engineering Laverda (1978) in high grade mild steel.
It is the large bore collector box which allows the engine to breath better and will give optimum performance.
We have not tried to improve on the Laverda Factory designed item, we have copied it exactly.
Here's a picture of an original factory collector box (top), with a new chrome one (bottom):
It has been designed and produced identical to the original factory component, except we have used a slightly thicker gauge materials all round.
This will make the collector box last longer, and there will be less chance of failure, unlike the stainless steel ones available elsewhere, well documented, which all crack given time due to ill fitting, poor design, wrong shape, wrong grade materials which are too thin, and the work hardening due to the hot/cold process which makes them brittle.
To accomodate everyone we have produced them in various finishes so whether you are restoring, racing or for a roadbike we have the choice to suit your requirements.
If you require another finish we should be able to do it to order.
For the 120 degree models we have also designed and produced a "Jota" large bore collector box, it is a direct replacement for the factory item, but will allow the engine to breath better than the standard component.
All collectors are a direct factory replacement, so all original downpipes and silencers will fit.
Here is a new collector box in component form:
Both 120 & 180 Collectors carry the Factory Part Numbers.
The 1000/1200 models use 63-513-085.
The 120 Jota is also 63-513-085.
RGS/RGA and SFC 1000 models use 63-513-191.
180 (plus 120 Jota) part number:
- and 120 part number:
1) Bright Chromium Plated....
As with our Jota silencers we use the triplex plating process. This process is polished first, then copper plated, nickel plated and finally bright chrome plated. This process is more expensive, but will offer better protection against rust, and a deeper finish.
Although our plating is a very high quality, this finish is not a "fit and forget" as it is difficult to maintain under the engine particulary with bad weather conditions.
Price = ?163.95
2) VHT Black....
Very High Temperature Black (VHT) is the most economical in our range, we offer this for some who race so finish is unimportant, there are those who apply this finish to the silencers as well for a different look.
The collector box is first degreased then grit blasted to give a key for the finish.
Once applied it is baked in an oven at 220 degrees to cure, it will then withstand up to 650 degrees. It is not very resilient to rust, but can easily and cheaply be re-finished if necessary.
Price = ?143.95
3) Dip Galvanised Finish.
Hot dip Galvanising is the finish you can "Fit and Forget" application. It is the most popular and economical in the range. We have used this finish for 35 years and it has proven to last for many years.
The process dips the collector in moulten galv, this covers both the inside and outside, this is why it's protection is so good. Heat does not effect the finish, so is perfect for the application.
Price = ?153.95
4) Dull Nickel Chrome.
This finish is designed to replicate the original Factory finish. It is a plated finish without the metal polishing in bright chrome.
It is particulary used in restorations where the restorer wants to replicate the original factory finish.
The collector is lightly sand blasted then copper plated, then nickel plated for a longer time than normal to give maximum protection. Like the bright chrome it will take looking after under the engine, but all the originals rusted within weeks from new!
With care it will last for longer than bright chrome, but is not a "fit and forget".
Price = ?158.95
5) Ceramic Coating.
This is a premium finish which is a "Fit and Forget" application for under the engine. It has several advantages over all the other finishes.
It protects against corrosion internally and externally. It offers high thermal performance and significantly lower exhaust surface tempertures.
We are informed it has a lifespan of approx 10 years depending on usage.
We are offering this finish in 2 main colours, Satin black and CermaKrome.
The Cermakrome is a silver finish, it is polished to obtain the bright finish which does look close to chrome, but with superb corrosion protection.
Price = ?197.95
Shipping will be with UPS for all sales UK, Europe or Worldwide.
For UK it is ?10.00 and it is trackable and insured. Shipping rates outside the UK can be provided upon request.
Purchase from Cox Engineering Laverda
Alcester Heath Farm
Alcester Heath
Warwickshire
B49 5JJ
UK.
Email.... coxeng@gmx.com
Please always check availability prior to ordering.
"These collector boxes are manufactured by Cox Engineering Laverda (1978) in high grade mild steel.
It is the large bore collector box which allows the engine to breath better and will give optimum performance.
We have not tried to improve on the Laverda Factory designed item, we have copied it exactly.
Here's a picture of an original factory collector box (top), with a new chrome one (bottom):
It has been designed and produced identical to the original factory component, except we have used a slightly thicker gauge materials all round.
This will make the collector box last longer, and there will be less chance of failure, unlike the stainless steel ones available elsewhere, well documented, which all crack given time due to ill fitting, poor design, wrong shape, wrong grade materials which are too thin, and the work hardening due to the hot/cold process which makes them brittle.
To accomodate everyone we have produced them in various finishes so whether you are restoring, racing or for a roadbike we have the choice to suit your requirements.
If you require another finish we should be able to do it to order.
For the 120 degree models we have also designed and produced a "Jota" large bore collector box, it is a direct replacement for the factory item, but will allow the engine to breath better than the standard component.
All collectors are a direct factory replacement, so all original downpipes and silencers will fit.
Here is a new collector box in component form:
Both 120 & 180 Collectors carry the Factory Part Numbers.
The 1000/1200 models use 63-513-085.
The 120 Jota is also 63-513-085.
RGS/RGA and SFC 1000 models use 63-513-191.
180 (plus 120 Jota) part number:
- and 120 part number:
1) Bright Chromium Plated....
As with our Jota silencers we use the triplex plating process. This process is polished first, then copper plated, nickel plated and finally bright chrome plated. This process is more expensive, but will offer better protection against rust, and a deeper finish.
Although our plating is a very high quality, this finish is not a "fit and forget" as it is difficult to maintain under the engine particulary with bad weather conditions.
Price = ?163.95
2) VHT Black....
Very High Temperature Black (VHT) is the most economical in our range, we offer this for some who race so finish is unimportant, there are those who apply this finish to the silencers as well for a different look.
The collector box is first degreased then grit blasted to give a key for the finish.
Once applied it is baked in an oven at 220 degrees to cure, it will then withstand up to 650 degrees. It is not very resilient to rust, but can easily and cheaply be re-finished if necessary.
Price = ?143.95
3) Dip Galvanised Finish.
Hot dip Galvanising is the finish you can "Fit and Forget" application. It is the most popular and economical in the range. We have used this finish for 35 years and it has proven to last for many years.
The process dips the collector in moulten galv, this covers both the inside and outside, this is why it's protection is so good. Heat does not effect the finish, so is perfect for the application.
Price = ?153.95
4) Dull Nickel Chrome.
This finish is designed to replicate the original Factory finish. It is a plated finish without the metal polishing in bright chrome.
It is particulary used in restorations where the restorer wants to replicate the original factory finish.
The collector is lightly sand blasted then copper plated, then nickel plated for a longer time than normal to give maximum protection. Like the bright chrome it will take looking after under the engine, but all the originals rusted within weeks from new!
With care it will last for longer than bright chrome, but is not a "fit and forget".
Price = ?158.95
5) Ceramic Coating.
This is a premium finish which is a "Fit and Forget" application for under the engine. It has several advantages over all the other finishes.
It protects against corrosion internally and externally. It offers high thermal performance and significantly lower exhaust surface tempertures.
We are informed it has a lifespan of approx 10 years depending on usage.
We are offering this finish in 2 main colours, Satin black and CermaKrome.
The Cermakrome is a silver finish, it is polished to obtain the bright finish which does look close to chrome, but with superb corrosion protection.
Price = ?197.95
Shipping will be with UPS for all sales UK, Europe or Worldwide.
For UK it is ?10.00 and it is trackable and insured. Shipping rates outside the UK can be provided upon request.
Purchase from Cox Engineering Laverda
Alcester Heath Farm
Alcester Heath
Warwickshire
B49 5JJ
UK.
Email.... coxeng@gmx.com
Please always check availability prior to ordering.
not sure I agree with the theory that there are better ones on the market or they make the bike go any better. only because there's no way I can us mine to its full potential anyway 
: bootiful. 8)
