Fitting a racing seat to mgf
Discussion
I'm afraid I can't offer specific advice, as I don't own an MGF and haven't worked on one, but this is definitely possible as there are a few racing MGFs around. For example in the MG Cup:
https://www.mgcc.co.uk/mg-cup/
With my old MG Metro and current MGB racer, the racing seats have both been fitted with standard seat brackets available from Demon Tweeks, Merlin etc. These brackets bolt to the floor with four bolts (two per bracket) - the bolts pass through the bracket itself, then through the car's floor and finally through a steel metal plate (as per MSA rules and MSA specified thickness and dimensions). The metal plate is essential because the floor of a car is quite thin. I'd recommend both nylocs and a regular check of the nut's torque before and after trackdays. The brackets then fix to the racing seat with four horizontal bolts. This gives a fixed seating position - brackets with runners are also available, but I've never used them. Racing seats are obviously safer than a car's standard seats and offer more support for the driver, plus they can also be mounted lower, which most drivers prefer and it's also safer. Both my racing cars have been fully stripped out with no carpets, so I'm not sure what happens with the brackets and carpet...
Racing cars then run a harness system, which again has MSA rules for attachment. Normally this is via eyelets bolted to the floor for waist and crotch strap (note the angles for the latter; the wrong angle can actually be a safety hazard), and the shoulder straps go around the rollbar (not eyelets, due to the forces involved). The MSA regs are quite detailed with all of this. The harnesses pass through cut-outs in the seat (not over the seat, as with a road car seatbelt).
Hope that helps in some small way. If you'd like any photos of the installation in my MGB, just send me an e-mail.
https://www.mgcc.co.uk/mg-cup/
With my old MG Metro and current MGB racer, the racing seats have both been fitted with standard seat brackets available from Demon Tweeks, Merlin etc. These brackets bolt to the floor with four bolts (two per bracket) - the bolts pass through the bracket itself, then through the car's floor and finally through a steel metal plate (as per MSA rules and MSA specified thickness and dimensions). The metal plate is essential because the floor of a car is quite thin. I'd recommend both nylocs and a regular check of the nut's torque before and after trackdays. The brackets then fix to the racing seat with four horizontal bolts. This gives a fixed seating position - brackets with runners are also available, but I've never used them. Racing seats are obviously safer than a car's standard seats and offer more support for the driver, plus they can also be mounted lower, which most drivers prefer and it's also safer. Both my racing cars have been fully stripped out with no carpets, so I'm not sure what happens with the brackets and carpet...
Racing cars then run a harness system, which again has MSA rules for attachment. Normally this is via eyelets bolted to the floor for waist and crotch strap (note the angles for the latter; the wrong angle can actually be a safety hazard), and the shoulder straps go around the rollbar (not eyelets, due to the forces involved). The MSA regs are quite detailed with all of this. The harnesses pass through cut-outs in the seat (not over the seat, as with a road car seatbelt).
Hope that helps in some small way. If you'd like any photos of the installation in my MGB, just send me an e-mail.
Edited by RobM77 on Thursday 10th October 15:32
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