SCHREIBER Posted April 16, 2009 Share Posted April 16, 2009 I'm moving my exhaust on my 90 because the roll cage mount is in the way of the side exit I had already. I'm building my 90 to use in challenge events, but I want to run my exhaust up behind the cab. Would this be OK for challenge event rules/regs? Thanks Chris Quote Link to comment Share on other sites More sharing options...
Dave W Posted April 17, 2009 Share Posted April 17, 2009 No, it doesn't meet MSA rules like that for a number of reasons including being too far away from the rear of the vehicle and not being covered. Quote Link to comment Share on other sites More sharing options...
Rightfoot Posted April 17, 2009 Share Posted April 17, 2009 The MS Blue Book states: Exhausts • Have the exhaust system isolated from the driver/passenger compartment (e.g. beneath the floor or secured in casings of solid material). • Have no part of the exhaust system protruding to the rear of the bodywork more than 15cm. • If Racing Car with rear aerodynamic device, not have any exhaust pipes extending rearwards beyond the aerofoil. • If Racing Car without aerodynamic device, not have exhaust pipes extending more than 60cm beyond the rear wheel axis. • If Rear Engined Single Seater Racing Car, have the exhaust outlet between 4cm and 60cm from the ground. • Have all exhaust outlets terminating behind the mid-point of the wheelbase of the vehicle and within 150mm of the outside the bodywork periphery in plan view. Side exhausts not to protrude more than 4cm. For vehicles other than racing cars that are not fitted with enveloping bodywork any side exhaust may not extend beyond the plane through the outside of the front and rear tyres with the front wheels in the straight ahead position. Cars of periods A to E and Drag race vehicle are exempt from these requirements. I can't see that it specifcially excludes vertical exhausts, provided it is behind the mid point and within 12cm of the edge of the bodywork. Quote Link to comment Share on other sites More sharing options...
Rightfoot Posted April 17, 2009 Share Posted April 17, 2009 Sorry, make that last comment - I can't see that it specifcially excludes vertical exhausts, provided it is behind the mid point and within 15cm of the edge of the bodywork. Quote Link to comment Share on other sites More sharing options...
white90 Posted April 17, 2009 Share Posted April 17, 2009 I bet placed there it would get on your nerves after a day listening to it. Quote Link to comment Share on other sites More sharing options...
SCHREIBER Posted April 17, 2009 Author Share Posted April 17, 2009 Thanks for the replies lads I've managed to get a piece of 3" stainless tube, that is bent to pretty much the right shape for running the exhaust out behindthe passenger door, just in front of the wheel arch, so I'm gonna put the exhaust there. Thanks again Chris Quote Link to comment Share on other sites More sharing options...
YAS328 Posted April 18, 2009 Share Posted April 18, 2009 Exhaust now comes through bodywork... Quote Link to comment Share on other sites More sharing options...
SCHREIBER Posted April 26, 2009 Author Share Posted April 26, 2009 Thanks again for the help, heres a pic of the exhaust I've made. Cheers Chris:) Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.