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Feb 13, 2015 18:23:05 GMT
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Looking to convert the front end of my Dolomite to 4x114.3, using Stag hubs, stub axles etc, so that it matches the Scimitar Se5 axle pcd.
I'd like to uprate the brakes at the same time, using brackets from the TrackerJack conversion, but with larger Sierra Cosworth calipers and 283mm discs to suit.
Ideally, I "think" I need 283mm discs with an offset of 38.5mm and 4x114.3 stud pattern. This is due to the "stock" TJ discs having that offset.
Anyway, is there any list or database anywhere that I can check for discs this size? Or have I missed something obvious here? Cheers!
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RetroMat
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Column Shifting!
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Feb 13, 2015 18:46:27 GMT
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Feb 13, 2015 18:58:55 GMT
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colnerov
Posted a lot
Posts: 2,836
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Feb 13, 2015 19:29:03 GMT
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Feb 13, 2015 19:38:16 GMT
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Feb 13, 2015 20:02:11 GMT
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textar have their "brakebook" too.
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Feb 13, 2015 21:58:41 GMT
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Just as a starting point a 4th generation Honda Prelude has a 282mm disc (in top spec anyway) 4x114 bolt pattern and I even think the offset will be pretty close for what you need
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jikovron
Part of things
mechanical chaos
Posts: 633
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Feb 13, 2015 22:33:33 GMT
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It possibly may not be practical to use the tj conversion brackets with 282mm discs because they mount the brake calliper to suite 239mm golf gti discs.
Incidentally also of note, the golf gti disc is mounted in the same behind the hub style that the original discs are in the sense that they are redrilled to suite the dolomite disc PCD in the hub which is different to the wheel pcd and either the centre bore of the disc is enlarged or the back of the hub is turned smaller to suite the disc.
If trying to fit the discs over the stag wheel studs pcd then either the disc depth would need to be approximately 80mm to meet the calliper or the calliper mounted with large spacers between the them and the mount brackets
so really its likely to involve offering parts up and adapting as you go
hope that helps
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It possibly may not be practical to use the tj conversion brackets with 282mm discs because they mount the brake calliper to suite 239mm golf gti discs. Incidentally also of note, the golf gti disc is mounted in the same behind the hub style that the original discs are in the sense that they are redrilled to suite the dolomite disc PCD in the hub which is different to the wheel pcd and either the centre bore of the disc is enlarged or the back of the hub is turned smaller to suite the disc. If trying to fit the discs over the stag wheel studs pcd then either the disc depth would need to be approximately 80mm to meet the calliper or the calliper mounted with large spacers between the them and the mount brackets so really its likely to involve offering parts up and adapting as you go hope that helps Thanks for the detailed reply. I had thought that due to the Cosworth brakes fitting stock Sierras with no modifications (can anyone confirm this please?) That the difference in disc size was taken up in the caliper itself? I'm not sure if I'll end up over braking the car anyway. It'll be approx 200kgs heavier than stock, with around 3 times the power. May lock the nose up a bit too easily. |
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jikovron
Part of things
mechanical chaos
Posts: 633
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ahh I see your thinking that does make sense, it is possible to also machine the hub to accommodate different depths but only by up to 2-3mm otherwise breaking into the grease void is possible which would weaken the hub massively, and any lower depth disc could be spaced off the rear of the hub also but again only by around up to 10mm as otherwise the fastening ring (dolomite disc centre) would clash with the upright so in essence the stag hub allows roughly between a 27-40mm disc depth to go with the 283 diameter
one thing I'm investigating is making an en24 steel 4.5" pcd front hub that mounts the wheels 15mm inboard from standard and uses the largest disc/calliper that would fit under a 14" rim to allow for deeper dish wheels as co-incidentally I too am going for a se5 axle to replace an open diff sprint one, but even then it wont put the power down much better than current I predict
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Feb 14, 2015 16:34:05 GMT
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I am hoping to team the Se5 axle, with a Jag diff and 245 section tyres... Traction should be ok!
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