Joined: Apr 16, 2004 Posts: 652 Location: Santa Clara CA
Posted: Thu Jul 29, 2010 6:28 am Post subject:
To have to sell a really nice engine that you obviously spent some time and money on before even getting to enjoy the fruits of your labor. But yet it's for an even nicer engine which you'll probably do the same treatment for.
Unless you have no regret or any sadness selling the hybrid at all. Then is just SWEET _________________ My Album
Joined: Dec 12, 2006 Posts: 445 Location: Fort Worth, Tx.
Posted: Thu Jul 29, 2010 10:55 pm Post subject:
lol...i gotcha. Well, I have been so stoked to have aquired the 18RG that I havn't had time to be sad about selling the hybrid. So, so far it has just been sweet. _________________ Roads?....Where we're going, we don't need....Roads.
Joined: Dec 12, 2006 Posts: 445 Location: Fort Worth, Tx.
Posted: Fri Jul 30, 2010 1:02 am Post subject:
Got my garage cleaned up yesterday to facilitate proper working conditions. Afterward I had time before the sun went down to work on preparing the truck to donate it's heart. I removed the air cleaners and found some nice velocity stacks under the cleaners to my suprise. removed the radiator and drained all the fluids. Removed and labeled all the wiring too. Sprayed down the motor mount bolts with some penetrating oil so hopefully they will be easier to get off as well as the carbs and linkage and they are now moving freely. Now it's just a matter of unbolting the bell housing and motor mounts and it should come right out...should.... _________________ Roads?....Where we're going, we don't need....Roads.
So call me a bit of a goof but I see a lot of positive remarks about the 18RG engines. I so love the 22R(E) style and workings that I must of missed something about the other "bad" boy (18RG).
Is it the double carbs that give it the draw, which I could see tuning them a problem plus just having 2 (two)...money! I have an 18R in my 74 and it’s nothing to write home about. I've done some things that make it a bit mighty but still...Nah. Didn’t they come out about the same time?
Certainly I am NOT down playing your excitement, its great and I’m happy for you, I was just curious what the draw is? I will take a long shot hear and guess…speed!?
Take care, cya _________________ 1974 Celica GT coupe
1993 Toyota 4x4 extra cab Truck
Joined: Apr 16, 2004 Posts: 652 Location: Santa Clara CA
Posted: Sat Jul 31, 2010 7:55 am Post subject:
walter34 wrote:
*
So call me a bit of a goof but I see a lot of positive remarks about the 18RG engines. I so love the 22R(E) style and workings that I must of missed something about the other "bad" boy (18RG).
Is it the double carbs that give it the draw, which I could see tuning them a problem plus just having 2 (two)...money! I have an 18R in my 74 and it’s nothing to write home about. I've done some things that make it a bit mighty but still...Nah. Didn’t they come out about the same time?
Certainly I am NOT down playing your excitement, its great and I’m happy for you, I was just curious what the draw is? I will take a long shot hear and guess…speed!?
Take care, cya
The 18RG has a dual overhead cam head designed by Yamaha I believe. It has superior flow characteristics compared to its 18R counterpart. I believe the block is the same or based off of the 18R. It's kind of like the difference between the 4AGE and the 4AFE in the 80s-90s corolla. The "G" heads are usually built for performance whilst the more common non-G counterparts are built for economy. There could be more to it, but that's how I understand it. _________________ My Album
Joined: Aug 13, 2009 Posts: 277 Location: North of Boston
Posted: Sat Jul 31, 2010 10:26 am Post subject:
I thought the G was their code for dual cams. Thus the TG would also have 2 cams. Well that's what I remember anyway, and I'm drinking so...
I think I remember reading about this on wikipedia. Am on my cell phone now though, so I'll leave confirmation as an exercise for you, dear reader! _________________ My 1974 Celica ST project!
Joined: Dec 12, 2006 Posts: 445 Location: Fort Worth, Tx.
Posted: Sun Aug 01, 2010 12:41 pm Post subject:
The G in toyota engine codes does stand for twin cam. The draw for me to the 18RG was a few things. Mostly, the ease of installation since it's going back where an 18R used to be. The 22R mounts required modification to fit the celica, and the twin side drafts was a plus. There were other reasons but I don't want to start a debate over wich engine is better. They are both great engines, the 18R was just a better choice for this build and is correct for the car. _________________ Roads?....Where we're going, we don't need....Roads.
Joined: Apr 16, 2004 Posts: 652 Location: Santa Clara CA
Posted: Sun Aug 01, 2010 1:05 pm Post subject:
I think the question was basically what's the difference between the 18R and the 18RG. He didn't have any knowledge of the 18RG but knew the 18R. Knowing the 18R he wanted to know what made the 18RG so good.
Yep and dual cams usually means a higher performance engine. And I say usually because later that's not the case as in the 4AGE vs the 4AFE and 1ZZFE vs 2ZZGE etc. Both dual cam engines, but one built for economy and one built for performance. _________________ My Album
Joined: Dec 12, 2006 Posts: 445 Location: Fort Worth, Tx.
Posted: Tue Aug 03, 2010 3:02 am Post subject:
i dont know anything about the ZZ engines BUT, i do know about the 4A motors and there is a HUGE difference in performance between the GE and FE engines. In other engine like the 3SGE and 3SFE they both have "technically" two cams but the GE engines are a true indepentent twin-cam where as the FE engines have a "slave" cam that is driven off the other cam by a gear.
The 18RG is a more desireable engine than the 18RC in terms of performance for a number of reasons. Twin cam head cylinder head is said to be more efficient, the cylinder head is a cross flow design wich is also more efficient. The cross flow twin cam head allowed for faster revs and a higher RPM range. Also the twin side draft carbs made for better and cooler fuel and air delivery. On early 18RG engines the compression was also higher than it's RC sister. Anything i missed feel free to chime in. _________________ Roads?....Where we're going, we don't need....Roads.
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I have an 18R in my 74 and it’s nothing to write home about. I've done some things that make it a bit mighty but still...Nah. Didn’t they come out about the same time?
