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Location:
adelaide
Registered:
May 2002
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 18R-C carby or mods question
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Fri, 30 August 2002 06:19
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G'day im the owner of a fairly stocker 18Rc ra28, with king springs,KYB shocks, and recently extractors. I was wondering what peoples opinions were on the stock carby/intake setup opposed to a weber setup? do any webers fit to stock manifolds?? i would be thinking a single 36 or 40mm Weber, or something similar hopefully on a different(bigger) manifold, would this kind of setup yield noticeable gains in power with the stock internals+cam, as somebody has told me the stock carby can be alright for what u pay for webers+manifolds? and do u need fuel regulators and the like just for slightly bigger carbies? or would it be worth replacing or regrinding the cam instead of a carby? as i am only looking to spend a not-huge amount to finish making the car into something slightly respectable... for now.
or is all this not worth it as it is only an 18R-C for gods sakes and the more money i spend into on the less i have saved for the 18RG or 1G??
I just know 18rc performance parts are not common and the engines are modified less because of the whole twincam issue or lack-of. Just was looking for some advice about cheap mods as i have a fair bit of spare time at the moment due to an injury keeping me from driving, and i am just itching to spruce it up a bit(also cos of my friend just aqquiring a shmick 13B Capella!)
If anyone has any spare shit lying around for r-c's and want to get rid of it in adelaide id be interested, And does anyone know the current price of 18RG's from engine shops? is it true they are becoming so rare that 1G's are cheaper?? cos id love to go all out with 6cyl.
Anyway Cheers Heaps for all the comments if u feel like writing em, take it easy.. i got about 4 weeks till i can drive again Argh!! (broken leg, snow accident)
8O :skullblink:
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BlackRA28
18rc+extractors+2"exh
firm susp.= drifter
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I supported Toymods
Location:
Berowra-Sydney
Registered:
July 2002
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Re: 18R-C carby or mods question
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Fri, 30 August 2002 09:07
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well webers are a good add on and help feed a larger amount of air and fuel into the engine at a quicker speed, you find a big notice in a weber is it gives the car more torque exspecially going up hills but the downside is they help the engine use a hell of a lot more fuel, cam well of course it improves engine performance and does tend to make a big difference over standard,
i've found that with my car it may only be a little quicker over a standard 18-RC on take off and top speed wise but my engine is fantastic when driven hard on twisty stuff where you in around 2nd 3rd gear it has great response and puts all of its power out in those two gears so for me its fantastic and is everything i need as i like driving on tight twisty dirt tracks. but personally i don't see why you shouldn't do up an 18-RC as i feel that would be more original then just sticking in another engine like many others do, would be nothing better then to have a car that looks to have a fully stock engine but is far from it.
my engine has a double throat 45mm side draft weber and a cam and thats what i know for sure,
but i've been told it has been ported, polished head, bigger valves, bigger pistons, blue printed and balanced but i can't be sure on that.
and of course extractors and exhaust.
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Location:
Western Sydney
Registered:
May 2002
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Re: 18R-C carby or mods question
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Fri, 30 August 2002 10:33
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Yeah a bigger carby will make your 18R go better, but it depends on what condition it's in at the moment. My 18R has low comp on no.1 cylinder, but it still goes better than a standard 18R. Mine has a weber and extractors. The last time it was put on the dyno it made 43KW at the wheels. It's definitely dropped since then though.
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Location:
Brisbane
Registered:
May 2002
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Re: 18R-C carby or mods question
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Sat, 31 August 2002 00:48
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Reconditioning an 18R will cost way more than it's worth. Keep your eyes open, 18R-G's pop up every now and then in the trading post. It also might be a good idea to come to the Celica club meeting (the next one is this coming Tuesday), there are always people selling Celica bits and someone is likely to have an 18R-G for sale.
From my experience these engines typically cost between $500 and $1000, depending on condition.
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Location:
Canberra
Registered:
May 2002
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Re: 18R-C carby or mods question
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Sat, 31 August 2002 05:49
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I was lucky i picked up an 18RGEU int the middle of a rebuild for $350. I need a few things for it but i'm still hapy.
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Location:
adelaide
Registered:
May 2002
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Re: 18R-C carby or mods question
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Sun, 01 September 2002 13:18
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cheers guys, ill keep my eyes peeled for a weber + manifold up for grabs, and hopefuly will have the old girl up and running bit better. although ive never been too dissapointed with the response from my 18rc as i got the car for $1800 with a paint job+retrim with motor pretty original from 1977 and its still going hard,(can get up hills in 4th at 40kph) and handling a lot better. what was the guy before saying by leaving it stock?? i could even the a difference when adding extractors and fine tuning.
Hunting for a nice 18RG.. that doesnt spit smoke and can have more power ABOVE 4500rpm,
Guy
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BlackRA28
45rwkw hillclimber/drifter
sleek..
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Location:
Adelaide
Registered:
July 2002
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Re: 18R-C carby or mods question
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Sun, 01 September 2002 14:27
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What does having the engine blue printed mean??
curious
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I supported Toymods
Location:
Berowra-Sydney
Registered:
July 2002
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Re: 18R-C carby or mods question
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Sun, 01 September 2002 22:33
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ok well when someone designs and engine they have all the geometry perfect and so forth, when the engine gets put into mass production each component may have a slight bit of error in it, what blue printing does is they pull apart the engine and resize all the parts to make sure every single part of the engine is to its "blueprint" design and also make sure all the angles and so forth are to the specs on the blue print design papers.
http://akrweb.com/karting/blueprint.html
http://integra.vtec.net/engine/blueprint.html
there are some sites which can explain blue printing better then i can.
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Location:
Adelaide
Registered:
July 2002
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Re: 18R-C carby or mods question
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Mon, 02 September 2002 15:47
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ahh gotcha, cheers!
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So I think I'll need something soon. I've been looking around but there doesn't seem to be much around brisbane way! Perhaps I am better just reconditioning this one?? But then again id really like something fuel injected...... 