18RG rebuild OR 1G-GTE

[DQIKST]

no worries owen

1 things what are you trying to say you have big muscles or i have a lebo back and im piss weak and cant pick up an RG

thanks dude ill look for some decent facts on weight,

[brett_celicacoupe]

personally id think a 1G-GE would be lighter than a 18rg...narrow as block and all

you must be very strong owen....do you want a medal


but when you add a 10kg intercooler, 5 kg worth of ic piping, 15kg worth of turbo gear etc etc .....it adds up......personally i think the 1g is a tad heavier overall

[o_man_ra23]

no worries owen

1 things what are you trying to say you have big muscles or i have a lebo back and im piss weak and cant pick up an RG

thanks dude ill look for some decent facts on weight,

Work on ya back mate... cause im not strong, nor do i have a good back.

Yeah Brett, im waitin for that medal, ive even organised a chest to pin it on

CHeers, Owen

[Norbie]

hey guys a 1G is lighter than a 18RG so that is what i have been told.

so does that mean i can get away from the brake conversion???

As has already been mentioned, vehicle mass is only one part of the equation when determining if your brakes are adequate. Doubling a car's power output means it can potentially put much more stress on the brakes, even if overall mass remains the same.

Regardless of that though, you'd have rocks in your head not to upgrade the brakes as a matter of course. The stock RA23 brakes are marginal even with an 18R-C.

[JustCallMeOrlando]

but when you add a 10kg intercooler, 5 kg worth of ic piping, 15kg worth of turbo gear etc etc .....it adds up......personally i think the 1g is a tad heavier overall

10kg intercooler!? Geez dude, get one that's made of alloy

[brett_celicacoupe]

mine is full of oil

very liberal guesses there

[o_man_ra23]

mine is full of oil

very liberal guesses there

The joys of BHG

[brett_celicacoupe]

cant see how oil in the intercooler could be caused by a BHG

[The Witzl]

I can lift an 18RG complete block on my own... i am doubtful as to whether I could do that with a 1G... and the 1G head can in no way be lighter than an 18RG, especially when you add turbos etc.

Correct. I can lift a complete 18R-G short motor (block, crank, rods, pistons) on and off engine stands and off the back of a ute.... and i'm a bloody skinny bastard!

As for the comments regarding 18R-G's and their "unfaithful" operation in cold weather..... this has EVERYTHING to do with carbies, and NOTHING to do with the engine.

I have converted my 18R-G from twin webber to twin solex to factory EFI (18R-GEU).... and i can tell you now that i would challenge a 1G-GE to perform as well as my 18R-GE in both everyday driving and on the strip. The absolute BUCKETLOAD of torque i have with the 18RGE is astounding, and the fuel bills have chopped around 20-25% off.

She currently runs a 15.87 1/4mile, with a virtually stock engine. Imagine if I had cams, high comp pistons....etc....

That said tho, the 1G-GTE is gun straight off the bat.... but dont knock the 18RG just because it is most commonly associated with poorly tuned mechanical induction (aka., carburettors)

[brett_celicacoupe]

but for the money you would spend on getting a 18rg, rebuilding it, and making it user friendly (cold starting), you could have done the 1ggte conversion.

ive had both engines and the 1ggte wins hands down in every way.....i had NO problems with coldstarting on the 18rg as well.

[DQIKST]

brett, karl, owen and who ever is reading this,

i have twin solex carbs on my car i leave my house at 5:30am on the dot every morning. and i havent had a problem. i simply roll the car down the drive way and half way down the street( thing is pretty loud) put the choke on and turn the key no pumping of the accelerator, warms up and i continue to drive my way to work.

Karl u aint skinny your just TALL

[jeffro ra28]

As has already been mentioned, vehicle mass is only one part of the equation when determining if your brakes are adequate. Doubling a car's power output means it can potentially put much more stress on the brakes, even if overall mass remains the same.

Regardless of that though, you'd have rocks in your head not to upgrade the brakes as a matter of course. The stock RA23 brakes are marginal even with an 18R-C.

I beg to differ, although i have not experienced it myself, a freind of mine here in Tamwroth has a windsor mid mounted in his race hillclimb ra28 with stock brakes. While his competitors are suffering from brake problems(upgrades) the totally stock ra28 brakes are keeping to the task without any fading and performing well competively on the race track. He has no intentions of upgrades.

Myself i find the brakes in my stock ta23 darn good. But thats just a 2t!

[brett_celicacoupe]

there is only really a couple ways to reduce brake fading.
one can be done with increasing the mass of the rotor (most common way). . having more mass allows more time for the rotors to function at a temperature below the fade point, ie. a larger chunk of metal takes longer to heat thoroughly. with small rotors, all the heat is accumulated much more quickly. the other downside of the solid 28 rotors is that there is no where near as much air flowing through them.... which means they wont cool as much before the next hard braking.

im pretty sure it is also possible to reduce fade with high performance pads....the ones that can operate at higher temperatures. the downside of these however is that they take a bit of braking to get up to operating temperature. doesnt sound very good for a hillclimb where you have to blast off the line (no warm up lap).

another option i see is that it is a hillclimb and bugger all braking is required.....either that or he doesnt go fast enough to need the brakes (dont take it the wrong way).


you say that your brakes are good in your TA23......i challenge you to go down the steepest/longest/most winding hill you can find........and see how long your brakes last. after a short time, they feel like someone has disconnected your booster vacum line.


try find someone that has done the hilux or nissan 4 pot calliper conversion.....you will see how crap stock celica brakes are

[jeffro ra28]

Thanks for the suggestions Brett. I havent really tested my brakes out. But i was very suprised that this guy hadnt upgraded his brakes, and as i say, he was very competetive.
Perhaps its just the style of "hillclimb" he is racing in.

Anyhow i had always intended to upgrade the brakes anyway!

[Norbie]

a freind of mine here in Tamwroth has a windsor mid mounted in his race hillclimb ra28 with stock brakes.

Either your friend's Windsor-powered Celica is incredibly slow or he never touches the brake pedal. The stock Celica brakes are, without a doubt, woeful. I managed to get them smoking hot with a stock 18R-G on a few occasions, and that says it all really.