Classic classes

[ChrisACT]

I've been looking around over at landracing.com and it seems that the LTA is creating some new classes for classic bikes.

Is this something the DLRA is likely to consider? I think they are specific to the LTA at the moment.

I've quoted the details from landracing.com below.

http://www.landracing.com/forum/index.php/topic,10564.0.html

7.D.4.4 Production Twin (PT): (LTA ONLY)
Same as Production (P) for single and twin cylinder engines only. Pushrod and OHC engines with cylinder angles of 0 – 180 degrees allowed.

7.D.4.5 Production Twin Blown (PTB): (LTA ONLY)
Same as Production Twin (PT) with an original brand factory installed turbocharger or supercharger is required.

7.D.4.13 Twin Gas / Fuel (TG) and (TF):
Any 4-stroke motorcycle engine with 1 or 2 cylinders. Unlimited in design and modification. Pushrod and OHC engines with cylinder angles of 0 – 180 degrees allowed.
Subject to the same limitations as (G) and (F) respectively.

7.D.4.14 Twin Blown Gas / Blown Fuel (TBG) and (TBF):
Same as Section (TG) and (TF) above with a supercharger or turbocharger required. Subject to the same limitations as Classes (BG) and (BF) respectively.

7.D.4.6 Production Classic (PC): (LTA ONLY)
Same as Production (P) for 4-stroke air cooled engines manufactured between 1956 and 1986 inclusively.

7.D.4.15 Classic Gas / Fuel (CG) and (CF):
Any air cooled motorcycle engine manufactured between 1956 and 1986 inclusively. Extensive design and modification of engine allowed. Alteration of cooling fin design, size and placement is allowed. Any system designed to enhance cooling is not permitted. (This includes, but is not limited to water injection, nitrous oxide or water spray systems, radiators, enlarged oil capacity or modified oil systems.)
Fuel delivery may be modified or upgraded but OEM carbureted bikes must remain carbureted. OEM fuel injection may be retained, modified; or replaced by carburetors. No non-OEM engine management allowed. One distributor or magneto allowed. Computers are allowed for data collection purposes only.

7.D.4.16 Classic Blown Gas / Fuel (CBG) and (CBF):
Same as (CG) and (CF) above with a supercharger or turbocharger required.

[RGV]

Interesting. So these are 4 stroke only classes ??

[ChrisACT]

Interesting. So these are 4 stroke only classes ??

This one confuses me a little.

7.D.4.15 Classic Gas / Fuel (CG) and (CF):
Any air cooled motorcycle engine manufactured between 1956 and 1986 inclusively. Extensive design and modification of engine allowed. Alteration of cooling fin design, size and placement is allowed. Any system designed to enhance cooling is not permitted. (This includes, but is not limited to water injection, nitrous oxide or water spray systems, radiators, enlarged oil capacity or modified oil systems.)
Fuel delivery may be modified or upgraded but OEM carbureted bikes must remain carbureted. OEM fuel injection may be retained, modified; or replaced by carburetors. No non-OEM engine management allowed. One distributor or magneto allowed. Computers are allowed for data collection purposes only.

What's the point of altering cooling fins if you're not allowed to enhance cooling. Or do they just mean other devices like water injection. Isn't a larger cooling fin a device which enhances cooling?

At least they haven't excluded two strokes in this particular class ... yet.

[project100]

Great idea.
I've got a 1974 XS650 Yamaha ready to go...well nearly.

[ChrisACT]

I reckon it's a good idea to have a class for air cooled engines as they obviously have disadvantages when compared with water cooled engines but by the same token, we don't want to make a new class for every vehicle that's a bit different. We'd end up with a thousand classes. The line does have to be drawn somewhere.

There is also something to be said for having common classes across different associations as going out on our own risks us becoming less relevant.

I just thought I'd throw this out there as something that another group are trying out. It will be intresting to see if other associations adopt any of these classes.

[Dr Goggles]

Don't have a dog in this fight but it's my understanding that in order to maintain a bit of clarity the DLRA are sticking to the SCTA rules one year gone.

[ChrisACT]

Don't have a dog in this fight but it's my understanding that in order to maintain a bit of clarity the DLRA are sticking to the SCTA rules one year gone.

Makes sense.