gyzmoo

Does anyone know if rebuild of 13b to 20b is ok with rta guys???

thanks

EZZY

there is a RTA engine transplant requirement/spec for passenger cars.
all depends on the power to weight ratio and what kind of car the engine is going in...

i was able to get my '97 astina engineered with a S5 13BT setup for RTA, but it wont pass the emissions (for EPA)... so now i have a spare S5 13BT setup sitting somewhere i can not get my hands on.

best to speak to RTA signatory engineer(s) and see if they can give you more pointers/ideas. They will be the ones to engineering certificate the setup afterwards.

or...

a simple rebuild to the same factory spec would not need to go pass RTA, ie. rebulid 13BTT on a FD to near-factory spec with different seals is okay.

timbo

Qld is often a better base for this type of project

gyzmoo

Are the RTA regulations different for every state or why queensland??

xxup

RTA is a NSW body - Each State has its own legislation, regulations and standards in relation to motor vehicles.. Until recently the road rules were different in each State too... One day we will be a Country instead of a collection of States...

BTW - I doubt that the Queensland agency would allow you to install a 20B motor into a RX-8...

DMRH

Disagree.

If you made the swap look factory & kept the 20B naturally aspirated, then its a good arguement to authorities that you have only added another 654cc.

REgards

xxup

Except that in QLD we are talking about going from 4 cylinder (or 2 rotor) to 6 cylinder (or three rotor) in a car model that has never offered a 6 cylinder option... Let's not begin to consider the ADR requirements... 20B change might gain approval for installation into an older Mazda, but I suggest that it is unlikely that there would be approval given to install that engine into a RX-8..

Anyway - let's ask the question of Queensland Transport and see what they say... Their starting point is:

"Replacement engines that are offered by the manufacturer as an optional engine for that model of vehicle may be fitted. For such conversions, all components, including suspension and brakes, must be identical to those of a vehicle originally produced with the optional engine." (see http://www.transport.qld.gov.au/qt/LTASinfo.nsf/ReferenceLookup/Modification_Jan05v2.pdf/$file/Modification_Jan05v2.pdf) So the question that could be on their minds would be something like - "I wonder what other components of the RX-8 would have been modified by Mazda if they had elected to provide a 20B as an optional engine.."

The minimum standards for all of these modifications are contained in the Code of Practice – Light Motor Vehicle Modifications. The document does not appear to be available online, but can be ordered through GoPrint (see http://www.goprint.qld.gov.au/web/web/index.asp?Pg=35)...

skc

I am sure there must be loop holes in the system as I have heard of many engine swaps in Qld. One of the most popular is the nissan 2l turbo(from 200sx) going into old datsuns. Typically these changes involve tranny and diff exchanges as well.

skc

timbo

Happens all the time. The issue is to get an engineer's certificate, and my understanding is that easier in Qld than elsewhere.

FWIW, there's a mid-80's BMW 2002 cabriolet in Canberra, which has a 20B in it. Frightens the odd M3 by all accounts, but I hear the scuttle shake is a bit of problem

xxup

Like I said guys it is easier to install alternate engines into old cars, but I wish you luck trying to achieve the same with a RX-8... Anyone heard of a legal engine swap in a post 2000 car that was beyond an optional offering by the manufacturer for that model car?

Rotor Convert

In SA we have few rules.........there is an older RX7 kicking around here registered an all with a Renesis engine in it...

We have Datto 1200 utes with 20b engines in them....

We have a Mazda MX5 with a cosmo engine in it I think as well....

We don't have yearly roadworthy checks and you can get a car through our checking stations if you are a female and goodlooking....well I have anyways...LOL

Come to SA we are the state where anything is possible...we might be quiet....but we get away with blue murder!!!!!

Gomez

That Renesis powered RX-7 got defected two weeks ago. Regency are gonna slaughter the poor dude.

You guys have been downgraded to yellow murder now.... .

gyzmoo

anyone know about 20b engine for sale???

EZZY

try those rotary specialists mentioned before.... better to get it "looked at/rebuild" before putting into the car.

DMRH

yes, I can get you one. Stored in a container over in Wetherill Park.

REgards