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

[Omegaman]

how does a 304/ 288 duration compare with the 240's(289 duration) or the
wilder 250's(295 dur).
the 304 seems over the top. Meaning you have them in a wild rg, is that right.
What the benifit of 304 int and a low 288 exh? sorry guys trying to figure this stuff out.

[7t5-27]

I am not sure how the 304/288 setup compares with your cams, when I bought the cams I was told they were used for rally car setup, I was after the 304/304 but was unable to obtain the second 304 cam and bought a 288 instead. The engine is a tg (1600) with a bascially stock bottom end except the steel flywheel. The jets on the carbs are as follows 190 main, 210 air jet,57.5 idle, 50 pump nozzle and accelerator pump on the #3 position (longer duration of fuel) add headers and a 2.5 inch exhaust and away you go esp at about 3300RPM. HTH Good Luck Be Safe
Greg

[Omegaman]

I think it's difficult to compare Carby set up with EFI.
When you talk about jetting and stuff, When an EFI, i suppose you talk injector, duty cycle and fuel pressure.
Off the shelf they sell the same duration cams, where now i have to deal with longer duration for intake...
So confused i may put this on hold and stick with the *****231 rg's

[7t5-27]

I think it's difficult to compare Carby set up with EFI.
When you talk about jetting and stuff, When an EFI, i suppose you talk injector, duty cycle and fuel pressure.

I agree with that! There are times when the simplicity of carbs has its appeal. Be Safe
Greg

[Omegaman]

I agree with that! There are times when the simplicity of carbs has its appeal. Be Safe
Greg

I would've thought, the other way around

[SilverRA23]

Howdy all

What do people do for a headgasket when you go with a large oversize piston?

Mine are 92mm pistons, and the headgasket that came in my gasket kit really won't work with that....

Suggestions are welcome thanks

[RAAAH23]

92mm hole saw?

[o_man_ra23]

Kameari do a 92mm bore multilayer steel (MLS) head gasket. Purchasing from the states seems to be the way to go, but they are US$250 plus freight (more for some thicknesses), so a bit of a hit on the hip pocket. Other thing about them is they have different thicknesses available, so you can measure and decide what you want to suit your engine's setup.

[Steve M]

Cometic used to do a gasket to suit 92mm bore, I don't know is they still do, we scored an old stock one.

ACL Eagle Farm (custom gasket) apparently already have a pattern and have previously made the gaskets to suit 92mm bore.

[ra_28]

ACL Eagle Hill (custom gasket) apparently already have a pattern and have previously made the gaskets to suit 92mm bore.

I will agree ACL do make the 92mm bore gaskets i've had a couple done before. But mine was done by ACL in Eagle Farm Brisbane.

Cheers
Alex

[Steve M]

Bugger, I always get that wrong, Eagle Farm. That's the one I was thinking about. (editing the above post now)

ra_28 do you have a part number for that gasket and did it have perfectly round bores?

[ra_28]

The first lot were shit because i used a copper gasket as the sample, but then i took an original 18rg down and we made up some for 92mm and 92.5mm and they were perfect.

I do have the part number still but i'm in Dubai for another 5 months it's still attached to my last order.

If you ring and tell them you want a Toyota 18rg in 92mm bore they have it on file.

Regards
Alex

[SilverRA23]

Thanks guys. Awesome help as always.

[SilverRA23]

Shame you are in Dubai Alex... the phone monkey at ACL Eagle Farm would only admit to having a standard one on their books.

Gave me the number of a place called Specialised Gaskets, but they want upwards of $400 for one!!

[SilverRA23]

Sorry for the triple posts... can any one tell me if an 18R head gasket would be ok on the 18RG?

As Steve M mentioned, Cometic have a 92mm one listed for the 18R