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Author: Subject:  Drag Tech section ?
Memberdangerous
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posted on November 2nd, 2013 at 09:43 AM



Here is the standard required:

http://www.sfifoundation.com/wp-content/pdfs/manufacturers/4.1%20Manufacturer...(flexible%20type).pdf




Quote:
Originally posted by westi
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posted on November 3rd, 2013 at 07:04 AM



What is the minimum length rear wheel studs have to be? Don't have an andra book with me sorry!!



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posted on November 3rd, 2013 at 07:10 AM



The rule book says you need a minimum thread engagement of one 'diameter' within the (hex part of the) nut.
So a 1/2" diameter thread will need 1/2 " length of thread engagement within the nut.
Cars 10.99 and quicker must have open ended nuts,
so that the engagement is visible.




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Originally posted by westi
That's mad Alan.
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posted on November 3rd, 2013 at 08:02 AM



Quote:
Originally posted by dangerous
There is an SFI standard 4.1 for 'flexible' blankets, and also a 4.1 standard for 'trans shields'.

http://www.sfifoundation.com/drag-racing/ 

There are plenty of trans blankets available out there for other types of gearboxes,
that meet the SFI 4.1 standard.

http://www.sfifoundation.com/wp-content/pdfs/manufacturers/4.1%20Manufacturer...(flexible%20type).pdf

If the local manufacturer can make a trans blanket to SFI 4.1 'Flexible', then that will be perfectly acceptable by ANDRA.

Simples!


Thanks Dave....
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posted on November 3rd, 2013 at 11:05 PM



I've got a simple little tip for a drag car.
OK then, two! :lol:

1. Always put a battery cut-off switch within "really-fast-hand-swipe" of the steering wheel. Always. As your hand flails wildly in front of your great big huge goggle eyes at 100-and-lots, your fingers can flick out and kill the damn thing before it kills you! In addition to the ANDRA required external switch is easy to do.

2. You get vibration in the water box. Sometimes it can upset the float level and stall the car when you jerk forward and the slicks bite hard. While it's sitting there quietly, you notice you can't hear the pump whirring. Lucky you put all the relays and fuses, with spares, right on the tunnel within easy reach to change the fuse so the pump works again. So you can start it. So you can stage. So you can win and do it all again.

:smilegrin:
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posted on December 3rd, 2013 at 10:10 PM



Nice tips there Dave....



FUCH your early!

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posted on December 13th, 2013 at 06:42 AM



Anyone else received the new ANDRA rule book? They have changed some of the super sedan rules....
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posted on December 13th, 2013 at 02:59 PM



Quote:

found it. me not so smart u know.





BUT u can weld :kiss::kiss:




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posted on December 14th, 2013 at 01:26 PM



Quote:
Originally posted by andrewmurphy
Anyone else received the new ANDRA rule book? They have changed some of the super sedan rules....


Hmmm, strange that. I didn't realise the class was being over run by manual transmission vehicles with centrifrugal clutches, clutch management and two wheel brakes enough to warrant a rule change.
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posted on December 14th, 2013 at 01:46 PM



Quote:
Originally posted by nasty

Hmmm, strange that. I didn't realise the class was being over run by manual transmission vehicles with centrifrugal clutches, clutch management and two wheel brakes enough to warrant a rule change.


Maybe the the change was made by people that DON'T
have the equipment you mentioned Michael??
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posted on December 14th, 2013 at 02:49 PM



Quote:
Originally posted by HS618
Quote:
Originally posted by nasty

Hmmm, strange that. I didn't realise the class was being over run by manual transmission vehicles with centrifrugal clutches, clutch management and two wheel brakes enough to warrant a rule change.


Maybe the the change was made by people that DON'T
have the equipment you mentioned Michael??


What a pain in the neck!!!!!!
:mad::mad::mad::mad:
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posted on December 14th, 2013 at 07:31 PM



Rev6 clutches etc that are centrifugal assisted aren't lock up clutches (page 199). The rules regarding pneumatics etc would be more focused towards sneaky multi stage setups so a call to andra tech may hopefully get that clarified for VW applications. I'm guessing those rules are aimed at keeping door slammers out of super sedan.


4 wheel brakes are a PITA though!
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posted on December 15th, 2013 at 03:20 PM



Actually centrifigal assist is exactly what a lock-up is, the bike guys have only been calling them that for about 30 years.
They obvioiusly meant "multi-staged adjustable" I spose.

Not trying to be clever, but jeez it just gets frustrating when every year ANDRA brings out new rules, but call the items different names to everyone else! They cause vastly more confusion than they fix.

I rekn if $100K ex-Doorslammers with Lenco's want to turn up thinking they have it in the bag and get trailered by a manually-shifted hotrod, bring it on!
Do your stuff Henry! :yes:
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thumbdown.gif posted on December 16th, 2013 at 07:41 PM



Quote:
Originally posted by SuperOwen
4 wheel brakes are a PITA though!


Feck! :mad:




FUCH your early!

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posted on December 16th, 2013 at 08:12 PM



How many guys will this affect?
It will me. This may mean I miss Sydney.
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posted on December 16th, 2013 at 08:39 PM



Quote:
Originally posted by andrewmurphy
How many guys will this affect?
It will me. This may mean I miss Sydney.


My front wheels and struts are ready to go for brakes but it's the plumbing and master cylinder that will take some time.
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posted on December 16th, 2013 at 08:53 PM



Nothing in the rules to say that they have to both be connected to the master cylinder.
My rears are on the foot, and my fronts are on the staging brake.
Work very well and easy to plumb.




Quote:
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That's mad Alan.
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posted on December 17th, 2013 at 12:32 PM



An update on the four wheel brakes.
I have spoken to the new ANDRA technical guy who has emailed the national rules committee to get this reversed. No one knows why the rule was changed so a page edit will be sent out by the end of the week.

He has also said my ballistic blanket is good to use and will email me that confirmation too.

He seems like a reasonable guy to deal with. Here's hoping sanity continues to prevail.
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posted on December 17th, 2013 at 01:35 PM



Nice work Andrew....makes you wonder though how many other rules have been changed on a whim. Just as a point of interest i'd like to know the trigger for a rule change, other than safety of course....is it just an idea a single person has or is the result of a majority decision?
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posted on December 17th, 2013 at 04:17 PM



From what I understand.....and don't quote me ......

Anyone can submit a change request. It will go to a national rule committee for that class who review the change and it will go into the next rule book. If it is requiring an earlier change than the next year they submit a page change. And notify people through their websites and through ANDRA notice boards.

There is good info on their site.
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posted on December 17th, 2013 at 05:23 PM



Did Mr Andra have anything to say about vw clutch management setups?
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posted on December 17th, 2013 at 05:47 PM



Quote:
Originally posted by SuperOwen
Did Mr Andra have anything to say about vw clutch management setups?

He didn't except to say that the changes look like a carry over from super gas which doesn't make sense because I looked at the 2013 super gas and it doesn't say anything about it.

I'll ask and let you know.
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posted on December 18th, 2013 at 10:56 AM



ANDRA are going to be sending a page update that will reset the suspension, clutch and brakes back to the 'general regulations' so there will be no issues with the rev 6 clutches.

Quote:
Originally posted by andrewmurphy
Quote:
Originally posted by SuperOwen
Did Mr Andra have anything to say about vw clutch management setups?

He didn't except to say that the changes look like a carry over from super gas which doesn't make sense because I looked at the 2013 super gas and it doesn't say anything about it.

I'll ask and let you know.
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posted on December 21st, 2013 at 07:13 AM



The super sedan page has been updated.

http://www.andra.com.au/images/stories/ANDRA/PDF/rulebook_page_updates/201312...


Required
Suspension: All rules pertaining to Gas class suspension are relevant to these classes, except that rear suspension is optional. Refer General Regulations “4.10.4 Suspension” on page 225
Transmission: Any type of transmission may be used.
Rear Hubs: All supercharged sedans quicker than 7.50 seconds (1/4 mile) / 4.90 seconds (1/8 mile) are required to use fully floating rear hubs.
Auto Trans/Converters: Refer General Regulations “4.9 Drivetrain” on page 220
Clutch: Refer General Regulations / Bellhousing” on page 222 “4.9.4 Clutch” on page 221
Flywheel: Refer General Regulations 4.9.6 Flywheel & “4.9.7 Flywheel Shields
Rear Axle: Any production automobile rear axle assembly permitted. Track may be narrowed. Spool may be fitted. Refer General Regulations “4.9.9 Rear Axle” on page 224
Brakes: Two wheel hydraulic brakes required as minimum. Refer General Regulations “4.10.1 Brakes” on page 224 CLASS REGS
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posted on December 21st, 2013 at 10:35 AM



Well done Andrew.
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posted on December 21st, 2013 at 04:36 PM



Is there still a push for a drag tech section? If so, who would be moderator?

thanks
Andrew
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posted on December 21st, 2013 at 07:21 PM



me



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posted on December 22nd, 2013 at 09:34 AM



Dave

I've created the Drag Tech section, and you're the moderator :)

Have fun folks - it's a sub-forum of this forum, so it should be easier to find than if it is off by itself.

thanks
Andrew
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