Chambers Posted August 9, 2012 Share Posted August 9, 2012 I know it wont be to everyones taste but my seatbelts are looking a bit raggy and I really fancy fitting a 3 or 4 point race harness in my Spitfire 1500. Does anyone have any experience of this and can you tell me how you mounted it or even better have some pics Quote Link to comment Share on other sites More sharing options...
herald948 Posted August 9, 2012 Share Posted August 9, 2012 Don't even think about fitting a four-point racing harness unless you have a good, stout roll(over) bar! Quote Link to comment Share on other sites More sharing options...
ferny Posted August 9, 2012 Share Posted August 9, 2012 [Sorry, link no longer available]Any use? Quote Link to comment Share on other sites More sharing options...
James1500 Posted August 9, 2012 Share Posted August 9, 2012 Three point uses the original mount points, you can get harnesses with a open clasped end for use with eyelets or closed plate types with a hole in for use with bolts, four point would require an extra mounting point to be created Quote Link to comment Share on other sites More sharing options...
Clive Posted August 9, 2012 Share Posted August 9, 2012 I can't see how you can use the original "upper" mounting as it is offset. (3 point harness here)it really needs to be high and central to the seat. And yes, with a decent roll bar as you won't be able to duck easily should you roll the car. Quote Link to comment Share on other sites More sharing options...
James1500 Posted August 9, 2012 Share Posted August 9, 2012 Its only slightly off centre and when the belts are adjusted up hardly noticeable its also at a nice height pulling you down and into the seat, I do have the mx5 seats however so the belt sits nicely either side of the headrest Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted August 9, 2012 Share Posted August 9, 2012 James1500 wrote:Its only slightly off centre and when the belts are adjusted up hardly noticeable its also at a nice height pulling you down and into the seat, I do have the mx5 seats however so the belt sits nicely either side of the headrestIts not what they look like ,its the effect when you come to an abrupt haltMy three point are fitted as followsEye bolts in lieu of the existing bolts in the tunnel and sill side floor bolts .So that twoThe third: remove back board covering tank, create a square hole in the board, in line with seat centreDrill and fit reinforced plates and eye bolts into bodywork going over the diff ( the raised portion just below the tankFeed belt clasp through both square cut outs and refit boardOne strap either side of the head rest and each strap from tunnel and floor, and there you areNot only looks right but works right In certain environments (scrutineers) they have to be fitted correctly Quote Link to comment Share on other sites More sharing options...
Clive Posted August 9, 2012 Share Posted August 9, 2012 Sorry, but I would want the rear mount dead central. Stuff like that can get critical.I doubt the blue book has much about 3 point harnesses (doubt they are acceptable) but the top mount should be as close to horizontal as possible, and if that isn't possible wrap it over the roll bar (ie the roll bar needs a horizontal bar at an appropriate height) plus as central as possible. You do not want lop-sided forces when it goes pear-shaped. Quote Link to comment Share on other sites More sharing options...
Chambers Posted August 9, 2012 Author Share Posted August 9, 2012 Thanks for the replies guy, do any of you have any pictures of your set ups and also what types so seats you are using and do you have any issues with the soft top catching them? Quote Link to comment Share on other sites More sharing options...
Chambers Posted August 9, 2012 Author Share Posted August 9, 2012 That sounds like exactly what I am looking for, can you post pics of your set-up and also the fixing point at the rear. I know it's a pain taking the board off but it would really help (whistle)michael_charlton wrote:Its not what they look like ,its the effect when you come to an abrupt haltMy three point are fitted as followsEye bolts in lieu of the existing bolts in the tunnel and sill side floor bolts .So that twoThe third: remove back board covering tank, create a square hole in the board, in line with seat centreDrill and fit reinforced plates and eye bolts into bodywork going over the diff ( the raised portion just below the tankFeed belt clasp through both square cut outs and refit boardOne strap either side of the head rest and each strap from tunnel and floor, and there you areNot only looks right but works right In certain environments (scrutineers) they have to be fitted correctly Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted August 9, 2012 Share Posted August 9, 2012 2577 wrote:That sounds like exactly what I am looking for, can you post pics of your set-up and also the fixing point at the rear. I know it's a pain taking the board off but it would really help (whistle)When its out tomorrow.... Quote Link to comment Share on other sites More sharing options...
Chambers Posted August 9, 2012 Author Share Posted August 9, 2012 You are a gent, thankyou very muchmichael_charlton wrote:When its out tomorrow.... Quote Link to comment Share on other sites More sharing options...
rotoflex Posted August 10, 2012 Share Posted August 10, 2012 You might also consider the belts fitted by Triumph to US cars that were 3-point: lap & shoulder. You can see how they were fitted in the factory parts catalog. Quote Link to comment Share on other sites More sharing options...
James1500 Posted August 10, 2012 Share Posted August 10, 2012 I agree that a central mount is better but unfortunately removing the tank completely to fit an extra point with reinforcement wasn't an option at the time, will make do for now and consider fitting to the roll bar in future :P Quote Link to comment Share on other sites More sharing options...
sparky_spit Posted August 10, 2012 Share Posted August 10, 2012 I've got 3 point Sparco ones in mine, fited to original fixing points, They fit well but are a faff to adjust. I agree with the points raised about a central rear mount but other considerations have had to take priority. Even with it offset I'm convinced it would be better protection that the standard belts.The only way you are really going to know for sure is find out the hard way unfortunately. Quote Link to comment Share on other sites More sharing options...
Chambers Posted August 10, 2012 Author Share Posted August 10, 2012 sparky_spit wrote:I've got 3 point Sparco ones in mine, fited to original fixing points, They fit well but are a faff to adjust. I agree with the points raised about a central rear mount but other considerations have had to take priority. Even with it offset I'm convinced it would be better protection that the standard belts.The only way you are really going to know for sure is find out the hard way unfortunately.Any chance of some pictures Sparky just to see what its like with the offset Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted August 14, 2012 Share Posted August 14, 2012 You have PM re photos Quote Link to comment Share on other sites More sharing options...
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