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Old 11-08-2015, 05:34 AM   #6271
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I'm not a specialist of the car, but if you can use RW instead of Panaracer, don't hesitate a nanosecond!

I think that's worth the modification...
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Old 11-08-2015, 06:46 AM   #6272
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Originally Posted by Zhangesh View Post
lol panaracer is hardly exotic when it's the box stock spur is it? RW spurs don't seem to fit without some modifications to the layshaft arrangement
It is exotic to you if you can't get it.

AFAIK there is no importer for those spurs in Oz, and I guess for a good reason, i.e. RW spurs work well (and they work for xray cars as well, so there you go, two birds with one spur!).

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I'm not a specialist of the car, but if you can use RW instead of Panaracer, don't hesitate a nanosecond!

I think that's worth the modification...
I don't understand this fixation with spur brands, or pinions, or screws, for god's sake!

But then again, I don't get the fixation with a particular brand of car either.

Perhaps some people just don't understand that pitch and tooth count matter, not brand.

And yes, I have a BD7 and I run RW spurs in it. Didn't even take any note of what the spur in the box was. No mod needed, noy sure what you're taling about.
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Old 11-08-2015, 08:32 AM   #6273
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This is not a matter of brands... This is just because Panaracer/Xenon/HPI are molded, RW are cut, milled and printed.

The precision is just better of the process... That's all... Do what you want...
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Old 11-08-2015, 08:53 AM   #6274
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This is not a matter of brands... This is just because Panaracer/Xenon/HPI are molded, RW are cut, milled and printed.

The precision is just better of the process... That's all... Do what you want...

I am not sure what you're saying. Moulded parts are cheaper to make, not better. Machining especially these days with CNC is a lot better (and always was the better manufacturing process where close tolerance is an imperative). It was just price that drove manufacturing to moulding, but not anymore.

I have a few HPI spurs but I don't think they're anything to talk about, really (like most moulded parts).
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Old 11-08-2015, 08:55 AM   #6275
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The hole pattern of some other spurs doesn't fit for the 4 mounting screws for example. E.g. xray spurs have a 6-hole pattern, not 4 or 8.

Also panaracer spurs are thinner than some others, so the normal button head screws sometimes won't fit those others (flat head screws can possibly be used instead).

Other than these two prerequisites, you're right, it's only pitch and tooth count. All else is just personal preference, quality, price and availability.
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Old 11-08-2015, 09:12 AM   #6276
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Quote:
Originally Posted by DirkW View Post
The hole pattern of some other spurs doesn't fit for the 4 mounting screws for example. E.g. xray spurs have a 6-hole pattern, not 4 or 8.

Also panaracer spurs are thinner than some others, so the normal button head screws sometimes won't fit those others (flat head screws can possibly be used instead).

Other than these two prerequisites, you're right, it's only pitch and tooth count. All else is just personal preference, quality, price and availability.
Actually, you have a point there.

But that is only relevant for Xray.

That said, RW has an entire line of spurs for Xray specifically. As far as I am concerned however, Xray's six hole pattern is their demise. My Xray cars use "normal" spurs I drill to fit (and Xray frustrates me no end with this quirk).

RW has some oddities as well, in that some spurs (used to) come with eight holes so you could fit them in six or four hole patterns (not sure these days). Maybe that was before they introduced the Xray dedicated spurs, I don't know. I still have some older spurs with eight holes.

Yokomo and most others have given up trying to reinvent the spur (in days past there were even two pitch circle diameters for the four screw pattern, check an old Yokomo spur if you have one. Today their spur fitment is nothing special. Hence no need to hunt around, thank god. Only Xray and Schumacher insist with their pig headedness. By the way, RW have Schumacher spurs as well, just in case.

And no, I don't make any money from RW (not that they shouldn't sponsor me, hint hint).
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Old 11-08-2015, 09:39 AM   #6277
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You can always fit a Xray spur or some spur that normally would't fit. Just use 2 screws instead of 4. The screws have to face each other in line.

Add a tiny tiny tiny drop or swipe of thread lock to those 2 screws and you'll be fine.
A buddy of mine had no other spur and we did this with 2 screws and he's still using the same spur since summer time and now indoors, modified.

If you race, I would always swap the spur for one that uses 4 screws, just to be completely sure. You don't want to put a DNF behind your name. BUT, like I said, you should be fine with 2 screws.
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Old 11-08-2015, 03:34 PM   #6278
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I have panaracers , rw's, xenons and xray spurs and always mount them with only two screws anyways. Less rotational mass it's better.
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Old 11-08-2015, 08:16 PM   #6279
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Many cars of yore only had provision for using two screws anyway, and I don't think the frequency of DNFs was any higher.
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Old 11-09-2015, 10:57 AM   #6280
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Any help would be appreciated. I ran my BD7 15 at my local track this weekend. The only thing that is different is that it was a big race with many national level drivers. The car was great in practice but by first qualifier the car became tricky and began to traction roll. I changed several things to attempt to stop it to no success. I sauce my tires fun from and rear with sxt and even tried half front traction and it didn't help. I included my setup as an attachment for information. Im looking to retain the speed with no traction roll as the bite comes up. Thanks in advance.
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Old 11-09-2015, 11:08 AM   #6281
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Quote:
Originally Posted by fpart View Post
Any help would be appreciated. I ran my BD7 15 at my local track this weekend. The only thing that is different is that it was a big race with many national level drivers. The car was great in practice but by first qualifier the car became tricky and began to traction roll. I changed several things to attempt to stop it to no success. I sauce my tires fun from and rear with sxt and even tried half front traction and it didn't help. I included my setup as an attachment for information. Im looking to retain the speed with no traction roll as the bite comes up. Thanks in advance.
How long do you leave the sauce on ?
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Old 11-09-2015, 01:07 PM   #6282
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I put my sauce on right before I go to tech. Usually only 1 heat before my heat.
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Old 11-09-2015, 03:38 PM   #6283
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Change oil to 400 and otb shims to .5mm.
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Old 11-09-2015, 06:02 PM   #6284
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I have a 2014 bd7 and just recently changed my diff fluid to 7k and my shock oil to 40wt with full rebound. I now feel the car get loose when exiting a corner. Turning is dramatically changed but I don't like the loose backend feeling. What did I do wrong?

I currently race at Tq in chino and it is a carpeted track.
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Old 11-09-2015, 06:03 PM   #6285
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fpart- I would change to Blue springs in the front and raise rear droop to 5mm.
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