fastisnice Posted November 5, 2007 Share Posted November 5, 2007 http://www.powerhouseracing.com/files/catalog.php?make=Toyota&model=Supra%20TT&catagory=Transmission%20and%20Driveline%20Upgrades This is my dream with a stroker kit! Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted November 5, 2007 Share Posted November 5, 2007 It'll stay in most people dreams too with a price like that Quote Link to comment Share on other sites More sharing options...
Daston Posted November 5, 2007 Share Posted November 5, 2007 £4100 isnt too bad. Quote Link to comment Share on other sites More sharing options...
JamieP Posted November 5, 2007 Share Posted November 5, 2007 Nice:cool: Quote Link to comment Share on other sites More sharing options...
SimonB Posted November 5, 2007 Share Posted November 5, 2007 You really wouldn't want a dog box on anything other than a race car. They make an unbelievable racket and having to heel and toe to perfectly match revs every time you wanted to change down would quickly get very annoying I think. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 5, 2007 Share Posted November 5, 2007 They've had these listed for about 2 years. I have used their kits in Skyline boxes with good success. Strictly track stuff though, with a high maintenance schedule. Quote Link to comment Share on other sites More sharing options...
fastisnice Posted November 7, 2007 Author Share Posted November 7, 2007 and why is it only for track? Quote Link to comment Share on other sites More sharing options...
Ark Posted November 8, 2007 Share Posted November 8, 2007 Because they're noisy and generally a bitch to use when you're not on a charge. I've got a mate with a PPG dog box on a Scooby - it whines _all_ the time, apart from in 5th which isn't dog-toothed to allow quieter cruising (yeah right). If he fluffs a shift, it can get stuck out of gear until he halts and re-engages first, but that's apparently not because of a bad build... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 8, 2007 Share Posted November 8, 2007 The "dog" bit doesn't make the whine, the dogs are for gear engagement, they lock the gear to the shaft more strongly, and faster, than a synchro hub. The whine is because the gears are straight, raher than helically cut. Straight cut gear teeth whine, but have less power loss due to the almost total lack of end thrust, and their more efficient tooth profile. They are usually stronger, too. Quote Link to comment Share on other sites More sharing options...
Thorin Posted November 9, 2007 Share Posted November 9, 2007 Anyone have any experience with the "PHR 3.27 Ring and Pinion Gear Set" listed on there? Quote Link to comment Share on other sites More sharing options...
Syed Shah Posted November 9, 2007 Share Posted November 9, 2007 Thorin, it is just the gearset from the J-Spec TT's. Export models had longer gearing (3.13) Quote Link to comment Share on other sites More sharing options...
fastisnice Posted November 10, 2007 Author Share Posted November 10, 2007 is the noise annoying for the street then i suppose? I used to have a dog leg gbox M3 E30 and its amazing shifting from 2nd to 3rd, u never miss Quote Link to comment Share on other sites More sharing options...
Tones Posted November 10, 2007 Share Posted November 10, 2007 Great bit of a kit but only for track and more so drag cars who need every milli-second.. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 11, 2007 Share Posted November 11, 2007 is the noise annoying for the street then i suppose? I used to have a dog leg gbox M3 E30 and its amazing shifting from 2nd to 3rd, u never miss Why is there so much misunderstanding and misinformation about dog boxes? This has NOTHING to do with the H pattern layout, and the fact that some boxes have first dog legged away from the normal H pattern. It's ALL about the deletion of synchromesh and the type of gear teeth form. A straight cut tooth form can be extremely loud and sound like it's about to fail. A none synchro box on the road will also amaze most people with its crudeness. Quote Link to comment Share on other sites More sharing options...
dandan Posted November 11, 2007 Share Posted November 11, 2007 I run a straight cut box in one of my other machines and it is a seriously noisy bitch of a thing. Reason I use one is that more ratios are available and also was having some side thrust load issues eating bearings and thrust washers. Strength issue is a it of a red herring - it depends on the gear material - like for like material wise, a helical gear (the gear and teeth themselves) will be stronger as the load is spread over a larger tooth area - effectively more teeth are meshed. However the box as a package may well work out stronger as life is easier on thrust bearings in a straight cut box (as CW said). Quote Link to comment Share on other sites More sharing options...
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