Changes to the F2 Sidecar TT Class.

[lovingit]

Wal you can skin the block so would it not make sense to correct your cam timing . Mike very interesting so what were the changes that were made . To achieve the temp drop

[mrequipe]

Basically better air intakes like naca ducts but also outlets to keep a flow of air in the engine compartment. I had an F1 outfit that couldnt stop overheating that was down to air going in the fairing and not enough area to escape I personally think the rule about up to 20mm from the exhaust is crazy I encourage people to put a duct in the fairing to blow behind the shield / in front of the engine to stop the air stagnating and getting super heated

[oldbelly]

Like it or not you F2 boys are going to have to do it. We have had a year with the engine in a box without any problems. Our motors dont rev their bollocks off though and we dont hold them flat out for miles as in the TT. Mike youve only been involved on this racing lark all of your life .What do you know.

[mrequipe]

[lovingit]

[quote="oldbelly"]Like it or not you F2 boys are going to have to do it. We have had a year with the engine in a box without any problems. Our motors dont rev their spheroids off though and we dont hold them flat out for miles as in the TT. Mike youve only been involved on this racing lark all of your life .Wha do you know. :lo

Geoff engines don't have to blow up to dump oil around tracks do they .

Mike remember the oil cooler you fitted for me . When eventually I got round to checking the temp I had actually increased it . By the way I hasten to add I'm in no way blaming mike as that's what I had asked mike to do.

[oldbelly]

Like it or not you F2 boys are going to have to do it. We have had a year with the engine in a box without any problems. Our motors dont rev their spheroids off though and we dont hold them flat out for miles as in the TT. Mike youve only been involved on this racing lark all of your life .Wha do you know. :lo

Geoff engines don't have to blow up to dump oil around tracks do they .

Mike remember the oil cooler you fitted for me . When eventually I got round to checking the temp I had actually increased it . By the way I hasten to add I'm in no way blaming mike as that's what I had asked mike to do.

True Dean and our oil containment with 170mm sides still didnt help

[lovingit]

170 mm

[oldbelly]

Yes Dean thats the minimum height of the box weve got to use. As I said we havent had any problems and as far as I know the World Championship riders have been ok. The problem with the 600s, as you know, will be the heat generated by the revs especialy at the TT.

[steve-e]

On the Steve Abbott advert page, there's a pic of an oil containment, how tall is the side on that?
I'm assuming the other side gets sealed to the tub somehow?
Pics are at the bottom of the page, click to expand..

PICS HERE

[lovingit]

What a lovely undertray

[Steve Pullan]

Does that mean if you run a dry sump, the oil catch tray will only need to hold about a pint as there is never anymore than that in the engine.

Regarding the subject matter of this thread, I believe the logical direction of discussion should be toward the use of dry sumps.
Why seek to rectify the problem after the event rather than before it.
By this I mean (as mentioned above) that if a dry sump is utilised & the engine should fail, the pump stops immediately & oil flow to the exploded engine stops, therefore, worst case scenario, only the mist of oil that is in the engine at the time would have the potential to escape. We are not then dealing with anywhere near the volumes of oil that a conventional system could potentially spill.
There is no question that we have been accused over the years with causing delays to solo races & even the cancellation of events due to leaving huge oil slicks around the track - it is a tag we seem to be stuck with.
And yet - the dry sump system has been used in other motor sport disciplines for over 20 years - why have we not adopted this system? Surely not down to cost? A dry sump system is priced around £1200 - a similar price to your T.T. travel cost on the ferry for you & your race kit. Small change when you consider that some of the electronics used on these engines are in excess of £10,000. I can also vouch for the fact that the use of a dry sump almost doubles the mileage you can obtain from an engine - money therefore saved.
Don't let the financial implications distract us from the obvious improvement in safety that I feel the dry sump system provides in the event of an engine failure.
What argument could there be for not asking for them to become compulsory?
Steve Pullan

[WEBBO]

One of the biggest problems last year with regard to oil on the track / loss of track time becouse of the F1 Sidecars came from a dry sumped outfit when the return pipe broke, and the team did best part of one full lap before the engine stoped. The pipe was spraying oil all over the track. These problems will always happen, the best is that we ( both wet and dry sumped outfits ) do what ever we can to keep the class going in the right direction with regard to oil containment. The class has made big improvements in this area.

[lovingit]

Its impossible to keep oil in totally no matter what is used i would have thought . We can only keep trying to make improvements shame theres not as much pressure on solo oil containment . But we unfortunately are having to get over the poor reputation of years gone by

[sparks on the side]

I just mention the fact that sidecars don't race at the northwest races now!!!!!!

[Jo Warriner]

Sorry Dean, I do have to disagree with you regarding solos and oil containment on the TT course. Believe me, we're just as strict with the solos. Apart from 2 strokes, every solo has oil containment, including the dry sump classics.