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Post by 22kBullRacing on Jan 25, 2011 7:35:11 GMT 12
i have read and replied to your email and you help would be much appreciated on this |
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Post by hoov51m on Jan 25, 2011 7:53:06 GMT 12
Is this the new specs you are talking about if so you can challenge them in a court,We have talked with Holley and they have had no contact with SNZ. You would think that if you need HOLLEY specs you would talk to HOLLEY, this would be common sense. but not in this case as it seems SNZ know more than Holley Common sense - SNZ do they go together I wonder?  We Have also talked with the NZ v8,s head tech people [way more professional look on rules] they have been through this crap and now use a go/no-go Gage's it so simple for both parties,remove air clearer small end of gage goes in top of carb then turn gage over to big end if the big end go in the carb is over sized and illegal. I have personally offered to supply one per track free of charge this is how committed I am to see this crap sorted SALOON TECH: Carburettor Specifications Published
The Saloon Technical Committee were tasked with defining the specifications of the widely used Holley
1850 carburettor, to meet the requirements of Rule T11-2-5(c), passed at the 2009 AGM. This work has
now been completed, and the parameters are reproduced below, along with the relevant rule. All
competitors using these carburettors must now comply with these specifications.
T11-2-5(c)
Carburettor may be of a four barrel configuration, up to 600cfm maximum size all with
vacuum secondaries. Holley #1850 or Holley #8007 carburettor; centre hung or side
hung floats permitted.
Venturi boosters, throttle body, throttle plates and throttle shafts will be subject to
minimum specifications as supplied by the saloon technical committee.
Minimum specifications will be available on the SNZ website.
1. To be classified as a compliant Holley 1850 Carburettor, the ID # (#1850) must be
stamped on the carburettor choke air horn as indicated in Image #3. Any subsequent
digit denoting the series number is not required.
2. Primary & Secondary Booster must have internal spray bridge, as indicated in image
#1.
3. Down leg boosters with no internal spray bridge are not permitted, refer image
#2
4. Maximum depth of Primary Booster internal spray bridge to be no more than
1.700 inches (43.18mm) below upper edge of choke shaft, as indicated in image
#4.
5. Maximum depth of Secondary Booster internal spray bridge to be no more than
0.640 inches (16.256mm) below top face of surrounding air horn as indicated in
image #5.
6. Primary and Secondary minimum throttle shaft diameter (measured
including throttle plate thickness); 0.200 inches (5.08mm). Measured
with throttle open.
7. Primary and Secondary throttle plates must be manufactured of brass,
square edged, minimum throttle plate thickness 0.060 inches (1.524mm).
8. Throttle body bore size primary and secondary: 1.550 inches (39.37mm).
9. Throttle body minimum height: 0.680 inches (17.272mm). |
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Post by hoov51m on Jan 25, 2011 8:13:03 GMT 12
The big problem here is
You do or get thing wrong there are consequence's If the tech guys do or get it wrong there are no consequence's what so ever
THEY MUST BE HELD ACCOUNTABLE FOR THERE ACTIONS
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Post by MadMarty13B on Jan 25, 2011 9:10:32 GMT 12
something does not quite add up here the rules are listed here Marty, see if you can get someone to measure a carb like this, I looked at these rules, looked at the carb and then scratched my head, thought about it and came up with the solution that it was legal last time it was checked so hope it still is, because i have not touched it since, not to sure if the restrictor plate idea is the perfect solution, but at least it would be a hell of a lot easier for the average guy to understand, because these rules are not, below is the update from october 2010 snz newsletter, which even tho i new what i was looking for took some time to find, and there is no way someone that did not know what they were looking for would find, i think it needs to be listed with the rulebook www.speedway.co.nz/pdf/Directors%20Meetings/SNZ%20Update%20-%20Oct%202010.pdfthis is not the first time this rule has caused greif, every year they test carb's someone new gets hit with it, I was referring to the piece of paper that had a different new ruling on it that no one else knows about |
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Post by Roaddog on Jan 27, 2011 8:21:17 GMT 12
just to throw a spanner in the works  I know of a guy that wants to run a 500 cfm holly on his saloon and has contacted snz of what he wants to do, he has been told NO he has to use the 600 cfm listed he then went on to say, but in the rule book it says, Carburettor may be of a four barrel configuration. up to 600cfm maximum size all with vacuum secondaries, so why can't I use a smaller carb? again he was told NO and if he wanted to use something different he had to write a letter to snz. I think they should never use the word may be if they are saying you have to. |
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Post by chris13w on Jan 27, 2011 18:40:17 GMT 12
just to throw a spanner in the works I know of a guy that wants to run a 500 cfm holly on his saloon and has contacted snz of what he wants to do, he has been told NO he has to use the 600 cfm listed he then went on to say, but in the rule book it says, Carburettor may be of a four barrel configuration. up to 600cfm maximum size all with vacuum secondaries, so why can't I use a smaller carb? again he was told NO and if he wanted to use something different he had to write a letter to snz. I think they should never use the word may be if they are saying you have to. So what about all the straight 6's around with Holley's on them - do they have to use a 600 as well, even if its too big?  |
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Post by Murray Guy (Grandad) on Jan 27, 2011 18:46:44 GMT 12
just to throw a spanner in the works I know of a guy that wants to run a 500 cfm holly on his saloon and has contacted snz of what he wants to do, he has been told NO he has to use the 600 cfm listed he then went on to say, but in the rule book it says, Carburettor may be of a four barrel configuration. up to 600cfm maximum size all with vacuum secondaries, so why can't I use a smaller carb? again he was told NO and if he wanted to use something different he had to write a letter to snz. I think they should never use the word may be if they are saying you have to. So what about all the straight 6's around with Holley's on them - do they have to use a 600 as well, even if its too big? Lucky Shane Simpson and his green mini isn't still raced as a saloon. Wouldn't have room under the bonnet. These guy's and their interpretations from time to time are of real concern! |
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Post by scotty 911w on Jan 27, 2011 21:20:40 GMT 12
"up to 600 cfm" and "maybe 4 barrel" do not mean the same as "must have a 600 holley 1850"  looks like ill be stickin to efi yet there are no restrictions on carb size and barrels if you use multi carbs on a 4 cylinder. (e) Multiple carburettors permitted on 4 cylinder engines up to 2500cc (152 Cu In) only. hhhmmmm mabey time to build a screaming ricer |
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Post by chris13w on Jan 27, 2011 21:59:42 GMT 12
That 55T was going surprisingly well for a little 3 litre Toyota... even if it did look like a total lash up  Nice guys though, and can't fault their dedication to getting it out on the track - never say die those Mainlanders! So "My Lil Pony" is changing to a Supra then Scotty?? ;D |
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Post by scotty 911w on Jan 28, 2011 15:43:12 GMT 12
That 55T was going surprisingly well for a little 3 litre Toyota... even if it did look like a total lash up Nice guys though, and can't fault their dedication to getting it out on the track - never say die those Mainlanders! So "My Lil Pony" is changing to a Supra then Scotty?? ;D hell no!! |
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I know of a guy that wants to run a 500 cfm holly on his saloon and has contacted snz of what he wants to do, he has been told NO he has to use the 600 cfm listed 
