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

**o_man_ra23** · 28-03-2010, 08:39 PM

Those looking at higher volume pumps. Check the 18R-GTE thread, looking at about US$150 for a brand new pump with the length similar to the one photographed.

Unda Presha - you should also check out the 18R-GTE thread. Much good info in there from people who have run these motors for a while.

**roadkill** · 29-03-2010, 12:11 AM

Hi,

going by the 1st gen celica forum those pumps didn't work too well and are back on the drawing board. Tolerances were a little tight!

bEn

**o_man_ra23** · 01-04-2010, 08:17 PM

That's an adjustment more than a total re-design. If you are pinning 2 pumps together, and get them out even a fraction of a degree, then the results could be far worse than the tight tolerance experienced with the other setup.

On a friendlier note, I have a box full of Arias forged pistons sitting waiting for my new block

**roadkill** · 01-04-2010, 09:45 PM

Hi,

gotta love this (yeah yeah, lwifoti)

http://cgi.ebay.com.au/ferrari-dino-...item335ba08da5

srsly tho, an 18rg in a vw chassis, ferrari replica rear mounted!!!???!?!?!?!!!

bEn

**timbosaurus** · 01-04-2010, 11:19 PM

yeah, pretty funky! Had a mate with a VW that had a Datto L20B mounted like that years ago, so it's not that uncommon.

Imagine the celica you could get for 10k though!

**JustenGT8** · 01-04-2010, 11:53 PM

Originally Posted by roadkill

Hi,

gotta love this (yeah yeah, lwifoti)

http://cgi.ebay.com.au/ferrari-dino-...item335ba08da5

srsly tho, an 18rg in a vw chassis, ferrari replica rear mounted!!!???!?!?!?!!!

bEn

I kinda like it...something different and scope to do some crazy mods

I'd piss off all the wannabe Ferrari shit though and just enjoy the light fibreglass kitcar it is

**o_man_ra23** · 02-04-2010, 11:33 PM

Why can nobody figure out that an 18R is a 2.0L not a 1.8L?? Is it seriously that hard?? Maybe the 4G63 is a 4.63L engine??

**jwebb2876** · 03-04-2010, 03:20 AM

Because most people assume that everyone does things the same way as Nissan

**bholmberg** · 06-04-2010, 07:30 PM

I know its a huge topic, but has anyone here used an Aluminum Lightweight Flywheel on their 18rg? do you guys think its worth while going down that path with the 18rg (my car is a road going weekender)? or should i just resurface my existing flywheel and forget about it... there is one on this site (http://toyheadauto.com/PerformancePages/18RG_Parts.html) for $450... anyone know of a better option? or any suggestions on the flywheel? I've been sitting on the fence with the idea for a few months now and keep swinging either side. thanks

**river** · 06-04-2010, 07:44 PM

Hi,

Depends what you want out of the engine and how you like to drive your car.

A light weight flywheel will make the engine more responsive and rev quicker, however, the draw back is the lack of weight on the flywheel also means the engine loses revs more quickly, as it has less momentum in the flywheel.

So, between the gear changes the engine revs will drop faster than with a standard flywheel.

I thought about it for Trini, and did some checking around and, for my purposes, I found a light weight flywheel to offer no advantages over the stock one. Matter of fact, it would probably be detrimental for the style of driving I do and the engine is powerful enough for me - especially being a daily streeter, where I'm not trying to squeeze the last poofteenth of performance.

seeyuzz
river

**JustenGT8** · 06-04-2010, 08:53 PM

Originally Posted by bholmberg

I know its a huge topic, but has anyone here used an Aluminum Lightweight Flywheel on their 18rg? do you guys think its worth while going down that path with the 18rg (my car is a road going weekender)? or should i just resurface my existing flywheel and forget about it... there is one on this site (http://toyheadauto.com/PerformancePages/18RG_Parts.html) for $450... anyone know of a better option? or any suggestions on the flywheel? I've been sitting on the fence with the idea for a few months now and keep swinging either side. thanks

I used a billet steel one on mine..approx 6kg compared to the stock 12ish kg. Noticeably woke the engine up and improved all aspects of driving. It's hard to say at what point it would be too light for street use but at a guess anything over 4kg should be fine. Definitely on the 'must do' mod list...if for no other reason that to lose the cast iron rubbish that is the stock FW.

**bholmberg** · 06-04-2010, 09:10 PM

i guess this is the kind of mixed response i was expecting - from the information i've read there seems to be many arguments on both sides. from the description on the marketing page 15hp is a big power gain for $400 ($450 minus $50 my resurface would cost), and extended bearing and transmission life sounds nice too.

on the other side, I'm keen to have the engine idle nicely, and i don't want to have to rev to 3g just to get off the line at the lights... loosing revs more quickly isn't an argument i've seen before! - good one river.

As a note, I have never driven an 18rg or even seen one in action... (however i will have one in the car once i've finished rebuilding) - i'm currently driving the 18rc, and think the rev characteristics would be improved with a lighter flywheel, while having a light car takeoff isn't a problem at all. I think part of my attraction is that i also ride a bit of road motorbike, and like the rev characteristics of a motorbike - maybe an aluminium flywheel will get me closer to that. today i'm leaning toward going for lightweight aluminium, tomorrow i'll probably have done a backflip!

cheers, any other comments - please do add. i need to decide soon!

**JustenGT8** · 06-04-2010, 10:16 PM

Flywheel mass helps retain inertia imparted to the drive train by the engine....on cruise and inclines this energy helps the engine along. Of course it take more hp initially to spin up a heavy flywheel.

The only downside i can see to a light flywheel is you get increased engine braking ie off throttle there is less energy stored in the flywheel so things slow quicker.

If you go too light i could see this making the car a bit surgy on cruise but that's about it? Can't say any of the flywheels i have used (including my current 2.5kg one!!!!) have caused this?

Dropping revs on gear change is a non issue? As soon as you are off the clutch the engine is straight back to road speed rpm regardless of flywheel weight...a completely irrelevant issue? If you have a goofy gear change it might make it feel even goofier?

A lightened flywheel definitely makes for a nicer and snappier gear change in my experience.

All good mate and no down side i have ever experienced from doing this mod 1/2 dozen times

Just checked out that alloy one, i'd run that in a blink if my 2.4litre 18RG weren't auto

**RA35GT** · 06-04-2010, 10:36 PM

PS dont forget the toyhead site is in US dollars and to take into account shipping. (They have some nice stuff hey)

I am planning to get a new billet steel flywheel from Direct Clutch. http://www.directclutchservices.com.au/flywheel.htm. Its about $320inc for the 18R one they have pictured. (PS. not sure if that includes the ring gear I forgot to ask, but you can get one from toyota still) Pretty sure they do a alloy one as well but i didnt enquire about that at the time.

My car currently has a poor mans lightweight flywheel (yes i know its dodgy thus im getting a new steel one). no idea what it weighs but i have no driveability issues with it. mine idles at ~800/900 rpm with no fuss... can still idle off in first gear..(efi helps with this though)

bholmberg, just make sure your wearing loose pants the first time you drive the 18RG there will be much excitement and OMR would suggest you dont go over 3000rpm as it may change the timeline.