browny

Agree with GTS-t VSPEC. Since each turbo's boost threshold is unique the only way to find out is trial and error. I have heard reports of them failing at stock boost in rare cases.

No you can't, well not legally anyway . I asked my local engineer about what it takes to become a signatory. The answer was something like B.ENG + qualified mechanic + time in the auto industry.

“Original weight” is the original (unmodified) “tare weight” of the sedan version of the vehicle model fitted with the largest engine available for the model but without optional accessories such as air conditioning and tow bar.

http://www.rta.nsw.gov.au/registration/dow...cinfor_dl1.html VSI 06, VSI 09 and VSI 15 are all useful.

Parts of the NSW guidelines.... Examples of minor (owner certified) modifications are: *engine changes where the capacity increase is less than 15% above the maximum size engine available for the vehicle (providing no major structural modifications are necessary and where noise and/or exhaust emission ADRs apply, all standard equipment such as carburettors, exhaust systems, exhaust gas recirculating valves, oxygen sensors and catalytic convertors relating to noise and emission control are retained and operate correctly); Engine modification Original engine modified Modifications to the original engine are permitted provided the following conditions are met: *normal engine reconditioning within manufacturer’s limits is permitted; *modifications must not affect compliance with any emission or noise related ADRs; *all emission control equipment must be retained and functional; *if the modifications result in a substantial increase in power, then the adequacy of other components to carry the increased power (brake performance, vehicle controllability and suspension systems etc.) as well as the vehicle’s continued compliance with the applicable ADRs must be considered. Replacement engine There are set engine capacity limits for a modified passenger car or passenger car derivative and these are set out in the table below. Owners should note that an engine might not be suitable even though it’s capacity falls within the specified limits. Owners are therefore advised to check details of a proposed engine conversion with an engineering signatory before commencing the work. (I snipped out the relevant bit) Mono constructed, 6cyl - NA = weight(kg) x 4.82, Turbo = weight(kg) x 4.0

Try searching - there was a thread not long back that covered this in great detail.

Is there any chance of shopping around? I had some contact with Paul Mullins who built RHR350 (Adelaide based). You could ask who did his engineering. His contact details are at http://www.hr350.com2.info/ Its a good web page to have a look through as well.

The best bet in all cases is to speak with your local registration authority to find out who you should be talking too. There is so much BS bandied around in forums about what is and what is not legal because people dont bother to check with the people that know the rules for the state. If you are in NSW you should talk to an engineering signatory, the RTA should be able to provide contact details (they have a list on their web site but I think its a bit out of date). If you are in or around Newcastle I can give details of a signatory who I am very happy with (very good with older cars). Last time I checked a full engineering certificate with everything on the car modded (ie different engine, brakes, seats & mounts, steering, diff, wheels, seatbelts, x-members etc) was going to cost $330 but this was a year ago and there was talk of a price increase due to govt regulations.

I'll buy both if you are keen to sell them.

Some Nissan gear boxes: RB25DET RB30ET & RB20DET/30E

Thats not true braided hose tho - its just a shitty sleeve that you put over the existing hose. It looks terrible.

Also the best fit hose is -10 or 5/8" which is just under 16mm.

Try Rampage in Wickham. I assume you only want the braided lines for the look of it - because there is no mechanical reason to use braided lines for this application. Budget for $20-40 per fitting and $50/m for the hose. You will need at least 4 fittings, possibly 2 more depending on what fittings you have on the separator. You also have to think about how you are going to connect the hoses to the cam covers. To do it properly you need to thread the cam covers and screw in a nipple of weld on an AN fitting as shown in the second pic (add 2 more fittings).

JimX - I have seen a discussion where it was agreed what you are saying is true, but the effect on turbo life is probably very small.

mort, do you have some contact details?

Thanks.

Can anyone tell me if the banjo bolts on an RB20 are the same thread as those on RB25 turbo. As far as I can tell the sizes for RB20 are: Oil M12x1.5 Water M16x1.5 Cheers, Tim

I've seem R33 turbos go for anywhere between $300-500 depending on condition, how urgent the same is etc I am after one as well....

Roy, Out of interest where did you get the PFC and what was the damage?

In NSW this type of spacer is not illegal but remember the rules are different in each state. You are allowed to increase your track width, but I only think the limit is +25mm overall in NSW. To cut a long story short - the reason I can use them is because I changed my braking system, stud pattern and wheels all at the same time. The spacers were needed to bring the wheel track out to the previous measurement. Its also not a skyline.

A spacer such as this that bolts onto the wheel studs is legal in NSW. I have them on my car and they were made after consultation with a RTA signatory. but also be aware that you cannot legally increase your wheel track past a certain amount. I think this is 25mm overall in NSW.

I'm after a copy of someones dyno sheet from a stock (or nearly stock) RB20. Also after the same from an RB30ET. Please email me if you can help: [email protected]

Found the thread: http://board.performanceforums.com/forums/...readid=67145982

I saw an argument on another forum that this is a myth. I will try to dig it up.