new smog in Cali

A General Discussion forum for cars and other topics, and a great place to introduce yourself if you are new to NICO!
flyfishz
Posts: 524
Joined: Fri Mar 21, 2003 4:06 pm
Car: fishing, golf, hangin with the kids

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If you are planning on getting a legit smog in Cali be sure you have the stock size wheels in place on the rear.

The new smog computer does not adjust for taller wheels on the dyno simulator... fails every time,,


lessthanjakejohn
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Joined: Fri Oct 25, 2002 6:39 am

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And so if you put smaller wheels on would you pass everytime?

yeswepromise
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Joined: Sun Dec 15, 2002 10:12 pm

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s14 came with 2 different size wheels. does the computer know this?

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jacob360
Posts: 579
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Car: 2 S13 Coupes

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Where is this info coming from?

I used to work for the California Smog Referee, and I've run lifted trucks with GIANT tires on the dyno before, and they've passed.

All the computer wants is for the speed to be within 13-16 mph and 23-26 mph for the different phases of the test, and the RPMs to be under 3000. They want you to run the test in second gear, but if you have to keep it in first, or shift it to third, (depending on the circumstances) it doesn't matter as long as the ranges are good.

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Mr1der
Posts: 36020
Joined: Tue Sep 02, 2003 8:35 am
Car: It's still not a Nissan...
Location: Lebanon TN

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sweet creamy jesus I'm glad I don't live there, I do wanna visit though

[Zero-S]
Posts: 5295
Joined: Wed Apr 16, 2003 10:56 am
Car: Tell me whats wrong with this picture. 3 240's, only one runs.

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Visit=good. I don't know how you people could live there though...

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PROJECTRB240SX
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Joined: Fri Jun 13, 2003 5:33 pm
Car: 1972 DATSUN 240Z W/ SR20DET

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WHEEL SIZE AND TOTAL DIAMETER IS DIFFERENT. YOU CAN HAVE A LARGER WHEEL WITH A SMALLER TIRE TO KEEP THE SAME DIAMETER OR ON THE OTHER SPECTRUM A SMALLER WHEEL WITH A LARGER TIRE.

flyfishz
Posts: 524
Joined: Fri Mar 21, 2003 4:06 pm
Car: fishing, golf, hangin with the kids

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As it is explained to me by the smog guys this new computer system is in place as of Otcober this year. The system has been programed with the factory vehicle specs. Using a smaller wheel size should result in a fail.

As for multi size wheels on the same model car there seems to be a set up feature that allows for this and the wheel size is selected prior to running the dyno.

It get worse... the car is also weighed at the rear axle. If the weight is off from spec, the car is is supposed to be failed... I don't know what the toerances are.... that is what the smog guy was saying...

Even worse still... the 20 year smog exemption is about to to be rolled back to 40 years!! all those 69 Camaros and Chevelles are in for a world of hurt...This has not been passed yet, but is is expected in the next few months

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PROJECTRB240SX
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Car: 1972 DATSUN 240Z W/ SR20DET

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WRITE YOUR LEGISLATION., THE TIME IS NOW TO PUT AN END TO THIS BULL****. TIME TO BOYCOTT NEW CARS, EMISSIONS, PUBLIC TRANSPORTATION, ETC. EMISSIONS IS BULLISH THEY DON'T REGULATE FACTORIES OR OTHER TYPES OF DAMAGING PRODUCTS IE AEROSOL SPRAY CANS, ETC. IF NOT THATS THE END TO CAR PERFORMANCE IN THE CALIFORNIA MARKET.

flyfishz
Posts: 524
Joined: Fri Mar 21, 2003 4:06 pm
Car: fishing, golf, hangin with the kids

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factories are heavily regulated in Cali. Cant use a lot of the paints and production methods used in other states... result is many companies moved to Arizona and Neveda as well as over the border to Mexico... Bottom line is we have too many people living in Cali these days...

I live up north so there isn't really much smog here, but So Cal can get pretty bad at times...

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MOTOP
Posts: 278
Joined: Fri Sep 19, 2003 8:44 am
Car: 04 G35 sedan

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yeswepromise wrote:s14 came with 2 different size wheels. does the computer know this?


I think both sizes that S14 came in are pretty close ot each oother.

195/60/15 and 205/55/16

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PROJECTRB240SX
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Car: 1972 DATSUN 240Z W/ SR20DET

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THATS THE SAME DIAMETER.

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MOTOP
Posts: 278
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Car: 04 G35 sedan

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musicsurfman wrote:WRITE YOUR LEGISLATION., THE TIME IS NOW TO PUT AN END TO THIS BULL****. TIME TO BOYCOTT NEW CARS, EMISSIONS, PUBLIC TRANSPORTATION, ETC. EMISSIONS IS BULLISH THEY DON'T REGULATE FACTORIES OR OTHER TYPES OF DAMAGING PRODUCTS IE AEROSOL SPRAY CANS, ETC. IF NOT THATS THE END TO CAR PERFORMANCE IN THE CALIFORNIA MARKET.
Thay are trying the Japaneese model where economicaly it just doesn't make any sence to own a car older than 4 years. This is BS. Turbo KA at 7PSI with proper CAT and exhaust will run cleaner than any new stock domestic V8. Those laws are not designed to help air pollution but much rather to help car companies increase their sales.

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-HyJynX-
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Joined: Tue Jun 24, 2003 6:37 am
Car: CArs...cars..

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0k..i offically hate california..and the 40 years back smog thing!? kome on..its going to far

Onizuka
Posts: 8450
Joined: Wed Nov 06, 2002 5:24 pm
Car: 91 Nissan S13 coupe SR20DET
89 Nissan S14 hatch SR20DE

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flyfishz wrote:As it is explained to me by the smog guys this new computer system is in place as of Otcober this year. The system has been programed with the factory vehicle specs. Using a smaller wheel size should result in a fail.

As for multi size wheels on the same model car there seems to be a set up feature that allows for this and the wheel size is selected prior to running the dyno.

It get worse... the car is also weighed at the rear axle. If the weight is off from spec, the car is is supposed to be failed... I don't know what the toerances are.... that is what the smog guy was saying...

Even worse still... the 20 year smog exemption is about to to be rolled back to 40 years!! all those 69 Camaros and Chevelles are in for a world of hurt...This has not been passed yet, but is is expected in the next few months


I have a feeling someone is BSing you.

1) Taller tire diamiter would lower RPM's at the same MPH lowering the amount of gas used per mile, whats bad about that? (aftermarket rims would not affect overall tire diamiter, if they are telling you that you cant have aftermarket rims they are completely lying to you)

2) If your car has to be a specific weight on the rear axle will i pass with a 1/4tank of gas as opposed to a full tank? What if i happen to have eight cinderblocks in my trunk for some obscure reason?

3) Why on earth would they want to push the limit to 40 years? what are the benifits? Old cars benifit from grandfather clauses, they didnt even have emissions testing back then, there is NO WAY to get them to pass modern emissions requirements.

just my honest opinion

flyfishz
Posts: 524
Joined: Fri Mar 21, 2003 4:06 pm
Car: fishing, golf, hangin with the kids

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Swapped 15" wheels back on passed smog no problem.

Don't know what else to say. The smog guy may have been BSing a bit... but he did not charge me for the fail... came back 2 days later with the factory wheels and passed

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MOTOP
Posts: 278
Joined: Fri Sep 19, 2003 8:44 am
Car: 04 G35 sedan

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PROJECTRB240SX wrote:THATS THE SAME DIAMETER.
Just some comparison results

TIRE #1 - 195/60R15

TIRE #2 - 205/55R16

Speedometer Difference: 2.726% too slow Diameter Difference: 2.66%

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MOTOP
Posts: 278
Joined: Fri Sep 19, 2003 8:44 am
Car: 04 G35 sedan

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flyfishz wrote:Swapped 15" wheels back on passed smog no problem.

Don't know what else to say. The smog guy may have been BSing a bit... but he did not charge me for the fail... came back 2 days later with the factory wheels and passed


Hey,

What wheel/tire combo did you have when it failed ?

flyfishz
Posts: 524
Joined: Fri Mar 21, 2003 4:06 pm
Car: fishing, golf, hangin with the kids

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17X7.5 Volk AV3 Yokahama tire

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MOTOP
Posts: 278
Joined: Fri Sep 19, 2003 8:44 am
Car: 04 G35 sedan

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what tire size ?

lok
Posts: 162
Joined: Wed Feb 19, 2003 2:38 pm

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Like stated prev. I am glad I don't live in California. You guys have access to all of the parts right downt he street, but you can't use any of them without going out of your way to pass some inspection they keep bringing up.

As for the tire size, I think the calculator should help. Its from a miata site, but a tire is a tire right?

http://www.miata.net/garage/tirecalc.html

Snarlynx
Posts: 247
Joined: Tue Nov 26, 2002 6:02 am

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My thing is... It sucks but it's so bad already, who cares?

An sr20det, CA18DETor a RB2XDET(T) is illegal to have running your car as are most KA-Ts so the vast majority of us in Cali smog our cars in a less then legal fashion.

So what if it's stricter? They could have us dress up like clowns and sing Mary had a little lamb backwards to make the car pass legally but the bottom line is hardly anyone is doing it the legal way now.

flyfishz
Posts: 524
Joined: Fri Mar 21, 2003 4:06 pm
Car: fishing, golf, hangin with the kids

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215 x 45 x 17

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PROJECTRB240SX
Posts: 3673
Joined: Fri Jun 13, 2003 5:33 pm
Car: 1972 DATSUN 240Z W/ SR20DET

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THATS ALITTLE WIDER BUT STOCK HEIGHT.


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