Comments on: Classic Nissan

By: johnbrett

johnbrett — Fri, 03 Sep 2010 22:45:36 +0000

You are exactly right! Well done for doing the research first. What sort of vehicle is it? what engine is it?

By: Mike

Mike — Fri, 03 Sep 2010 21:23:22 +0000

Is it true that you dont require a cat if you are a member of a racing motor sport club.Saw in item 5:9 i think it is that states:-

A low volume vehicle is not required to be fitted with a catalytic converter if the vehicle is designed and operated primarily for motor-sport activities, and runs on leaded or racing fuel, and:
(a) the vehicle owner is a member of a national motor-sporting regulatory body recognized by the Low Volume Vehicle Technical Association (Inc); and
(b) the vehicle owner holds a current and valid competition driving license issued by a national motor-sporting regulatory body recognized by the Low Volume Vehicle Technical Association (Inc); and
(c) a current and valid competition logbook has been issued for the vehicle by a national motor-sporting regulatory body recognized by the Low Volume Vehicle Technical Association (Inc).

By: johnbrett

johnbrett — Sat, 07 Aug 2010 21:27:58 +0000

Hi Sam- I have done emission tests of 12A rotaries, and been able to pass them. I have never done one with Oil premix, so I don’t know how it will work out. The best advice I can give is to get it tuned properly, so there is minimal unburnt hydrocarbons coming out of the exhaust. A good tuning shop with an exhaust gas analyser would be able to help.

By: sam

sam — Sat, 07 Aug 2010 05:26:48 +0000

hi have a 1985 mazda bongo with a 12a rotary fitted what problems will i run into for a cert with the emission standard as this motor runs a pre mix fuel and oil

By: how to stop snoring

how to stop snoring — Tue, 20 Jul 2010 19:58:41 +0000

Great post, you seem to know your stuff. I did find a few points that I was unsure about, but thanks to Google I now understand your points fully.

By: johnbrett

johnbrett — Thu, 24 Jun 2010 01:31:56 +0000

The problem area is in the strength of the seatbelt mounting- the load on the buckle is 15 Kilonewtons (about 1 1/2 tonnes force). The standard rails are tested to this load, but with aftermarket rails there is no certainty that they are strong enough. Any welding also comes into question. If in any doubt, you should bracket the seatbelt buckle directly to the floor mount, using 40 x 3 flat steel strip.

By: Dylan

Dylan — Thu, 24 Jun 2010 00:58:42 +0000

Hi,

I’ve recently had some bucket seats fitted to my Nissan Skyline 1989 R32 GTST and wondering about the certification process for these… They have been put together using aftermarket base brackets as well as aftermarket rails however have retained the factory mounting positions and the seat belts have not been altered in any way other then changing the seat beat clip in pint from the standard seat to the after market base bracket mounting point. Is this alright?

Cheers.

By: John Brett

John Brett — Wed, 02 Jun 2010 16:21:33 +0000

Hi- Thanks for putting me straight about models. We have to meet an emission standard, which means that you need the POSITIVE CRANKCASE VENTILATION SYSTEM left in place, and no catch-can. (Why do people want to put Catch cans on engines?) As you are not changing the engine, we do not need to require a Cat, or to do the on-road emission test.
The Chassis / floor rails damage needs to meet WOF requirements- so will probably be OK

By: shaddz

shaddz — Wed, 02 Jun 2010 12:24:34 +0000

Thank-you for the promp reply!
The GTS25 came out as a non-turbo model of the GTS25T, with 4stud hubs instead of 5, and the Weaker rb20DET varient gearbox. Hopefully everything else will be upto spec aswell. I understand That I will also need to fit a catalyctic (sp?) converter and catch can to pass??
Another slight worry i have is the chassis rails (or what i think are chassis rails) seem to have been crushed in ever so slightly on both sides in the same place, almost as though someone has hit a speed bump and bottomed out? Will this be an issue? It never has been with WOF’s…..

By: johnbrett

johnbrett — Tue, 01 Jun 2010 16:28:06 +0000

I thought that a GTS25 had a turbo from standard?
Brakes on all of these Nissans are all good. The LVV Cert requires 3 stops from 100 to 0. Your car should be fine without upgrade.