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Cheers!
10-19-2005, 08:25 AM
Where would a 2006 Mazda Miata GS be classed? Does it need to be retrofitted for roll over protection over what the factory supplied?

Dave
10-19-2005, 11:22 AM
Which curb weight?

5MT - 1,108 kg (w/o A/C)
5MT - 1,123 kg (w/ A/C)
6MT - 1,119 kg (w/o A/C)
6MT - 1134 kg (w/ A/C)
6AT - 1,132 kg (w/o A/C)
6AT - 1147 kg (w/ A/C)

If you have a copy of the classification spreadsheet, input whatever curb weight is appropriate for the version you're considering, input 170 hp, go with a 75% suspension rating as an estimate of what the CCC will decide on, drag and drop the formulas for the remaining columns and you'll get a final Starting PI for the car.

Cheers!
10-19-2005, 11:28 AM
Which curb weight?

5MT - 1,108 kg (w/o A/C)
5MT - 1,123 kg (w/ A/C)
6MT - 1,119 kg (w/o A/C)
6MT - 1134 kg (w/ A/C)
6AT - 1,132 kg (w/o A/C)
6AT - 1147 kg (w/ A/C)

If you have a copy of the classification spreadsheet, input whatever curb weight is appropriate for the version you're considering, input 170 hp, go with a 75% suspension rating as an estimate of what the CCC will decide on, drag and drop the formulas for the remaining columns and you'll get a final Starting PI for the car.

Looks like GT2 at 71.9% PI for 6MT - 1,119 kg (w/o A/C) Mazda Miata GS. Will this miata race ok in GT2?

Dave
10-19-2005, 11:35 AM
Sounds reasonable to me. With adjustable shocks, non-OE alignment, and some sticky tires, that could be a dominate GT2 car. Miatas have always had the potential to dominate GT2, but we haven't seen any the last couple of years (but back in about '02 or 03 Jeff Graves posted some very quick times in a GT2 Miata that was far from optimized for the class).

Cheers!
10-19-2005, 11:53 AM
06 miata GS in blue

Purchase Total = $37,139.25 off the lot based on mazda.ca

16x7, 5x114.3 (not sure on offset) enkei RPF1 (I think the smallest you can go is 16 on this new one) = 1300 CDN

Not sure what the difference is between A3S04 / A3S05 / R3S04 avg price is 200 USD each from tirerack. So 8*200*1.17 = $1872

KYB AGX shocks (if available are 800 USD) = 1076 CDN tax in.

Alignment = 70 bucks


Total = 37139.25+1300+1872+1076+70

Total = $41,457.25

I can sell my TurboII for 8000.

I need $33457.25 not including entrance fees, gas, food, motels.

Dave
10-19-2005, 12:12 PM
time to sell a kidney! :p

haniforama
10-19-2005, 01:29 PM
I'll pitch in a nickel.

You're down to $33457.20 :D

BTW: I'd love to be given the chance to spank some Miata butt in GT2 ;)

DareBee
10-19-2005, 02:56 PM
I believe the RX8 GT is the same money for an extr 70 hp, probably doesn't handle as well though

thgear
10-19-2005, 03:03 PM
isnt a brand new RX8 like 40g's?

Cheers!
10-19-2005, 04:24 PM
isnt a brand new RX8 like 40g's?

Purchase total for rx8 off the lot is $47,598.50. MSRP for rx8 is $40,195.00.

Derek if you want one I know where you can get one for dealer cost + 3% brand new whatever color u want.

Rx8 GT starting class is GT1 at 76%

Doug P
10-19-2005, 05:26 PM
Where would a 2006 Mazda Miata GS be classed? Does it need to be retrofitted for roll over protection over what the factory supplied?

The Mazda guy that brought the Miata to the shootout said the bars on the car are not for rollover.

With the new rook folding configuration and the trim around the back it looks like you have to take a fair bit of the car apart including the roof to cut a rollbar into it.

Alternately maybe a bar can be designed with front members instead of the rear ones.

Not easy or pretty on a new car. To bad Mazda did not have the smarts to install a proper bar in the first place. :(

James Mewett
10-19-2005, 06:37 PM
Rx8 GT starting class is GT1 at 76%

where, I might add, it will not be competitive.

Rob
10-20-2005, 05:42 PM
The Mazda guy that brought the Miata to the shootout said the bars on the car are not for rollover.

With the new rook folding configuration and the trim around the back it looks like you have to take a fair bit of the car apart including the roof to cut a rollbar into it.

I have to second what Doug said. The little hoops behind the seats look to be cosmetic - even if they are bolted down into the unibody, I would't want to rely on them in a rollover because they're not high or wide enough.

I've looked at the 2006 Miata in the showroom a few times and I don't think you can put in a regulation rollbar without doing a lot of modifications. It was easy to put them into the prior models but for whatever reason Mazda has decided to make it difficult to build a track car.

You could take the softtop and most of the trim out, put in a rollbar, and put a hardtop on - but you're looking at about $1800 for a new hardtop plus the cost of a custom rollbar installation.

Now my idea was to buy one of the last 2005 mazdaspeeds (the gray one, not the "please give me a speeding ticket" red) and put an aftermarket bar from CSC into that..... :cool:

...Rob

Chris P
10-21-2005, 10:43 AM
where, I might add, it will not be competitive.


but we will be fixing that over the winter.....right? right? :eek:

James Mewett
10-21-2005, 11:05 AM
where, I might add, it will not be competitive.

Correction: where it would not have been competitive last year but will be next year because the CCC is on the ball.

Chris P
10-21-2005, 01:23 PM
excellent ;)

John P
10-23-2005, 06:12 PM
The Miatas have another disadvantage per the present rules. It is mandatory to put a roll bar in the car without any compensation for this extra weight (anywhere from 50 to 100 lbs) . Sure the passenger seat can be removed but that won't compensate fully for the extra weight. Also the owner may not want to strip the car since it is a daily driver by other members of the family. The owner of a tin top car that makes the decision to put a roll bar in his car does that with the full intent to strip the car to save weight. The Miata owner is forced to strip his car because he is forced to add the extra weight for a roll bar.

I suggest that the CCC weight a CSC bar and add that weight to the car curb weight to compensate in the classification system for stock Miatas.

G-ForceJunkie
10-23-2005, 08:37 PM
But wouldn't you then have to take away the -2 pips they would get for having a roll bar? :confused:

thgear
10-23-2005, 09:53 PM
+1, says in the rulebook a rollcage is -2 pips...

craig
10-23-2005, 10:08 PM
The Miatas have another disadvantage per the present rules. It is mandatory to put a roll bar in the car without any compensation for this extra weight (anywhere from 50 to 100 lbs)

Can't one just add a fire extinguisher and use the curb weight option???

Dave
10-23-2005, 11:57 PM
nope, gotta add a roll bar AND a fire extinguisher to qualify for the curb weight option, or do an engine swap, or have 4 or more PIPs in the Body & Trim section.

CobraStang
10-24-2005, 08:00 AM
The owner of a tin top car that makes the decision to put a roll bar in his car does that with the full intent to strip the car to save weight.Not necessarily, and not per the rules. If you change one car's curb weight, you change it for everyone.

craig
10-24-2005, 08:51 AM
nope, gotta add a roll bar AND a fire extinguisher to qualify for the curb weight option, or do an engine swap, or have 4 or more PIPs in the Body & Trim section.

If somebody has a Miata, then they have to run a rollbar.

If they then put in a fire extinguisher, then why don't they get to use the curb weight option?

And ... "or four or more PIPs?" I didn't see that on the curb weight form or the rules?

thgear
10-24-2005, 08:52 AM
its somewhere there at the end

says like if the combined body and trim pips are more than 4 you have to blah blah blah... dont quite remeber.

craig
10-24-2005, 08:59 AM
+1, says in the rulebook a rollcage is -2 pips...
.1Installation of roll over protection that complies with the design requirements of Section 2.3 Roll Over Protection commonly referred to as a roll bar AND a fire suppression system, minimum requirement being a fully charged 2.5 lb (5 BC) (or larger) fire extinguisher securely attached to the interior and in a position and manner readily accessible to both the driver and a Marshal.
My rulebook says rollbar?

G-ForceJunkie
10-24-2005, 10:09 AM
Note: Any vehicle with more than 4 PIPs in the Section 6.3 Body & Trim MUST submit a ‘race trim’ curb weight, as prescribed in Section 6.4 Curb
Weight Option’.
At the end of section 6.3

Dave
10-24-2005, 11:21 AM
Craig, I see what you're saying now about the extinguisher. Yes, since a Miata must add a roll bar already, all they would need to add is the extinguisher. I thought you were suggesting that anyone could add an extinguisher (but not a roll bar) to access the curb weight option.

The "Note" at the end of Section 6.3 (pg 37) you'll see the 4 PIP REQUIREMENT for a curb weight submission. This requirement is in recognition of the fact that beyond a certain level the PIP schedule for B&T mods becomes more and more inaccurate (and it's not particularly accurate to begin with). This is similar logic to the dyno plot requirement for highly modified engines, where the PIP system also tends to breakdown.

craig
10-24-2005, 12:17 PM
Oops, sorry. Stupid me didn't look at the search results for that particular page this morning because I had just finished reading (just) 6.4 on that page ... :rolleyes:

The rulebook layout implies the note refers to the fuel cell definition, so I never read that part before (even though it was right in front of my face :eek: )

Can I suggest moving that note to the end of the introduction of 6.3, please? :cool:

As for PIP's, lighter cars generally benefit more from a PIP than heavier cars :p .

Dave
10-24-2005, 12:22 PM
yeah, we should move that "note".