For the love of a tractor engine: The life and times of the 18R-G

[Zammo]

Really Witzl ECU's need "shit" not your usual standard of highly informative information LOL

[The Witzl]

yep... they need shit.
Shit like thermofans, maps sensor (usually internal), ingitors, coils, etc which are taking care of with custom wiring and connectors.


I forgot to mention.... another option for the TPS is switching to a 7M throttle body with its TPS. They bolt up, but the PCV air path doesnt pass through to in front of the throttle; it gets blocked off. There is also no idle adjustment screw on the 7M throttle body. Also, the cable attachment is on the wrong side on the 7M throttle body...... but these can all be fixed if you are handy enough.

[Zammo]

See thats better was that so hard now

[timbosaurus]

Spot on witzy... Was thinking of writing exactly that a couple of days ago, but I'm lazy n shit.

If anyone is looking to do this, I have all the bits to make a basic kit of new housings, terminals, seals etc for the above. I don't usually do complete kits though, because everyone's setup is different, with all the things mentioned above (coils, fans, etc), but how could you not waste hours counting out tiny electrical parts for the love of the 18RG...

[Zammo]

new RG.jpg

Just picked up this sex beast of an agricultural powerhouse for 450

88270 head and cam elec ign rebuilt carbs been sitting awhile but clean as in side (havnt pulled the sump yet) and its a converted R block as a bonus it had the DOHC branded cover

inlet cam is aleast one tooth out but theres some weird ass 6 yes SIX hole cam gears on it and the zorst cam. ive never seen 6 hole ones anyone know whats going on there ?

as far as i can tell its a EFI that was converted to carb then rebuilt on an R block it has EFI thermo housing and the CCV and mech Fuel pump has been covered with one large plate.

im so happy ive scored a local rg for that price

[JadeEstevez]

Nice O___O Sounds like it was an awesome buy. How'd you come across it?

[Zammo]

Fuuuuuuuuuuu

RGresize.jpg


sorry attached the wrong pic and trying to work our the file manager

[Zammo]

Nice O___O Sounds like it was an awesome buy. How'd you come across it?

Combination of Facebook and Gumtree

the ra23 for sale locally on gumtree came with the RG and a mate knew him but no takers on the sleeka so i offered to take the motor of him a deal was done and here we are


I am so fucking chuffed

and Rhyno (selling Brian Crower cam) might have an early pair of cams there YAY

[JadeEstevez]

Nice to see things coming together dude =) I'm still undecided about Turbo, Supercharged or aggressive N/A 18RG...

What are your plans for it?

[The Witzl]

People have been known to drill out extra holes in cam gears to give more adjustment.
You'd have to see if the holes are factory or not.

I'm getting itchy to see my 18rgte running now.

[Zammo]

Nice to see things coming together dude =) I'm still undecided about Turbo, Supercharged or aggressive N/A 18RG...

What are your plans for it?

That depends on how many good go fast bits i still have from my last forey with RGs i will fly down and have a look and see whats left and usable in oct-nov

The thought of a turbo is appealling and i cant rule out cheap bolt on powa but i like a revvy N/A motor thats a little bit piggy to drive sedately. I wanna rev it high too really high +9k (I will probably have to go through a few std cranks/bottom ends to find a factory combo that will do it but they exsist. We did it several times back in the day but it took lots of trial and error and there were A LOT of R motors at pick a parts everywhere nobody really cared much for them.

so essentially get it to run as this has been rebuilt i will pull the sump and do a visual inspection if im happy will just bolt it into car run it as is. i should aleast have 1 complete motor in bris of unkown been sitting many years condition and i will procure atleast one more RG for a total of 3. So eng 1of3 is for the RT40 eng 2of3 will be rebuilt as a ready running drop in spare motor for when eng 1of3 decides one its connecting rods has a pale complextion and needs moar sunlight or something to that effect. Eng 3of3 will be a MONSTA i will take my time building it will use the lightest strongest internals, Big valves bit of head work 10.5-11:1 CPR 304/288 cams some 44/45mm Carbs (or maybe just maybe some ITBs and EFI) depending on my motivation and financial situation a billet crankshaft would be nice that way i could build a motor that could rev upto 10K but theres a whole car to build before we do that motor and that car will need W5x Dogbox with some ratio changes and thats not cheap either dogbox or billet crank its a hard coice but i can put the dogbox to use in the car straight away and enjoy it while a billet crank would look at me and scream SPIN ME.....SPIN MEEEE....every time i walked past it.

but like i said dont rule out a turbo if i have spare parts and motors the opportunity may arise and being the tinkering type person i am i may just force feed a bitza motor and see whats possible. Back in the day I aquired most of the bits to do a blow through carb setup as we thought it would be good but things like a 4AGE 20v or a 3SGTE would would suit that much more so we never got to play turbo RG so it would be fun to see what i could do but RGs dont sound right turbo'ed SORRY all you 18R-GTE owners.

formula for ear-gasms goes like this Hi-rev N/A 18RG (induction noise + that nice deep RG growl)with straight cut gears behind it in sub 1000kg shell makes for a WWII fighter plane style sound going down the road pedestrians will poo them selves with fear and priuses will need diesel to run after they hear that drive past them.

People have been known to drill out extra holes in cam gears to give more adjustment.
You'd have to see if the holes are factory or not.

Yeah i went and had a closer look at the cam gears they are DIY drilled extra holes for a total of 7 in each gear but none of the holes are being utilised

[The Witzl]

The holes are all at different spacing to allow some small variations in cam timing.


Oh, and building a high revving na engine will cost more than building an engine to take boost.
Revs are harder on engine components than boost. Much harder.

[JadeEstevez]

What else needs to be done until it is running? Post a video please!=3

[Zammo]

well as far as i can tel from looking at it inlet cam one tooth out dizzy 180deg out to start it on a stand id need bellhousing starter motor alt exhuast mani elec fuel pump batt all of which i can get so if i do start it of course i will post a vid

[Zammo]

The holes are all at different spacing to allow some small variations in cam timing.


Oh, and building a high revving na engine will cost more than building an engine to take boost.
Revs are harder on engine components than boost. Much harder.

how so witzl

i woulda though 200kw is 200kw of strain on all engine components regardless of how its derived every action has an equal and opposite reaction ????

wear i can under stand as the parts are moving more for any given amount of time so the service interval becomes more frequent but loads and forces exerted would be the same bar frictional losses wouldnt they ??????