18RG rebuilds and power outputs?

[Lambolica]

like i said... poor tune, the cams could never be dialled in apparently. I didn't know too much about engines when I had this... I wish I hadn't sold it.

[mike1980ra40]

Some pretty good RG's out there by the sound of it. Even if anyone dosnt have the power there engine makes you can still put up what you have done to your RG. Its interesting to know what sort of work you guys have done...

Cheers...

18R-G twin 40mm solex 88270 head, 20R pistons 30 thou over (flat tops, probably change to
domes later) my dyno test after a brand new rebuild was 55.3 Kw @ about 5000rpm

doing a dyno again soon, after doing carbie overhaul and resetting the timing and retuning

[floppy]

Hey guys,

Just thought I'd ask, if I start a new thread called "Rebuilding an 18RG" would those of you who have made some of these beasts contribute your knowledge to it?

I have been searching through the posts and trying to collate all the good stuff for own rebuild, and am trying to work out the best options, ie 20r pistons, blah blah blah,

I personally am going to be using an 18R block I have sourced, and thought it would be good to have a single thread title with as much relevant info. I am a relative newb to doing a full rebuild using a different block etc.

Anyway what do you all think, some you who have posted have been playing 18rg's a fair while

Dave

[Gunna]

I dont mind making this thread to do with rebuilds aswell if you want? I can change the heading to something like 18RG engine rebuilds and power outputs?

[floppy]

Hey,

yeah that might be better

There is already some nice little snippets of info in what some motors have in them in this thread.

Dave

[Norbie]

Hopefully YelloRolla will spot this thread, he's in the process of building 18R-G's for Witzl and myself. It's definitely not a budget build (custom rods and pistons, ARP fasteners etc) but I'm sure most of the basics are the same.

[Gunna]

Iv now change the heading of this thread so any help you guy may be able to give to me and anyone else reading on rebuilding 18RGs so we can get the most out of them would be great cause i know alot of you guy have years of experience with these motors.

Thanks...

[Gunna]

Hopefully YelloRolla will spot this thread, he's in the process of building 18R-G's for Witzl and myself. It's definitely not a budget build (custom rods and pistons, ARP fasteners etc) but I'm sure most of the basics are the same.

Yeah hopefully he will. Any chance you could PM him?

However basic or crazy some of you guys are going with your RGs id still love to hear about them and im sure plenty of other people would too. So let us know what you've got going on ...

[JustenGT8]

refer to here

http://www.toymods.net/forums/showthread.php?t=6349

[YelloRolla]

spotted.
Will add info as it becomes available.
Pistons look good! And we all know how important that is don't we?

[The Witzl]

spotted.
Will add info as it becomes available.
Pistons look good! And we all know how important that is don't we?

i love short skirts!

a lot of other useful info is in the "for the love of a tractor engine" thread. HEAPS of info there on parts and specs and whatnot.

[Mr DOHC]

18R-G twin 40mm solex 88270 head, 20R pistons 30 thou over (flat tops, probably change to
domes later) my dyno test after a brand new rebuild was 55.3 Kw @ about 5000rpm

doing a dyno again soon, after doing carbie overhaul and resetting the timing and retuning

thats cause u will fuck all compression

[o_man_ra23]

agreed with MrDOHC... theres fark all compression once you put in flat tops, biggest downgrade you can think of. Get a set of 12.5:1 pistons... thatll sort ya out

Cheers, Owen

[mike1980ra40]

12.5:1 hmmm better numbers than i was thinking, I will be on to that in the near future,

[o_man_ra23]

Ask MrDOHC, he had a set for sale a while back... they look CRAZY and would just be hypo. DONT RUN LOW OCTANE FUEL WITH THOSE PISTONS FFS

Cheers, Owen