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Old 12-07-2011, 12:04 AM   #3931
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I can get my TE down to 1660, but it's got HEAPS of lightweight stuff
1550 is a massive stretch
It could be done, but only by doing BAD things (carbon chassis decks) and we need not go there
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Old 12-07-2011, 02:13 AM   #3932
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I had my 733 Evo 1680gr last year.(with 2 low profile servos, receiver box, on off switch)
I think I can shave off 10 grams with the new engine Im going to use. Other than that, if I can find/produce some aluminum driveshafts and a hollow mid shaft it will be another -15gr.

Front spool of Serpent is 20gr, while Xray has a 10gr spool, which is a lot of difference.

I compared the main chassis+motor mount weight of 733 compared to NT1. 733 was 30 grams heavier.

If we cut the chassis as it has holes in the middle and front, produce an aluminum solid axle, driveshafts and hollow mid shaft, remove receiver box and on off switch, and use titanium screws as much as we can, it will be below 1600.

And I use life battery which is 77gr, I know some people that use 800mah small lipo with regulator to reduce the weight even more... But those are all static weight which is already located low on the car, I dont think it will change the performance so much. Same goes to receiver box and on off switch, and chassis.
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Old 12-07-2011, 06:03 AM   #3933
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I would have to agree.... 1550g is never going to happen with a 733, it's hard enough to get it close to the current 1725g. Might have to start looking at other brands if Aus adopts the proposed new efra weight limits.....
When I ran the 733 the lowest I got was 1710g. Wasn't that hard though, lipo, aluminum screws across the top, Xceed composite diffs front/rear.
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Old 12-07-2011, 07:01 AM   #3934
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Originally Posted by musti72 View Post
I had my 733 Evo 1680gr last year.(with 2 low profile servos, receiver box, on off switch)
I think I can shave off 10 grams with the new engine Im going to use. Other than that, if I can find/produce some aluminum driveshafts and a hollow mid shaft it will be another -15gr.

Front spool of Serpent is 20gr, while Xray has a 10gr spool, which is a lot of difference.

I compared the main chassis+motor mount weight of 733 compared to NT1. 733 was 30 grams heavier.

If we cut the chassis as it has holes in the middle and front, produce an aluminum solid axle, driveshafts and hollow mid shaft, remove receiver box and on off switch, and use titanium screws as much as we can, it will be below 1600.

And I use life battery which is 77gr, I know some people that use 800mah small lipo with regulator to reduce the weight even more... But those are all static weight which is already located low on the car, I dont think it will change the performance so much. Same goes to receiver box and on off switch, and chassis.

I agree. A lot of weight can be lost in the stock 3.2mm chassis. The 733 chassis with no bottom cut-out for the battery puts the 733 chassis almost 25-30 grams heavier than a Mugen Mtx4 4mm chassis. When running just two diff gears front and rear and my lightest engine and a 40 gram 800mah lipo battery "no regullator" I got mine down to 1716 grams.
There 's got to be more to the story of why the EFRA reduced the minimum weight to 1550gr than what just meets the eye

Pass you soon...
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Old 12-07-2011, 07:14 AM   #3935
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Originally Posted by lil-bump View Post
I agree. A lot of weight can be lost in the stock 3.2mm chassis. The 733 chassis with no bottom cut-out for the battery puts the 733 chassis almost 25-30 grams heavier than a Mugen Mtx4 4mm chassis. When running just two diff gears front and rear and my lightest engine and a 40 gram 800mah lipo battery "no regullator" I got mine down to 1716 grams.
There 's got to be more to the story of why the EFRA reduced the minimum weight to 1550gr than what just meets the eye

Pass you soon...
New technology, more efficient designs makes for lighter cars. I think it was time for a change.
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Old 12-07-2011, 07:56 AM   #3936
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Originally Posted by quietstorm76 View Post
New technology, more efficient designs makes for lighter cars. I think it was time for a change.
I agree. That more efficient designs will yield a lighter car. But that does not explain the reasoning for the lower minimum weight. In my opinion, I think the ERFA has taken the first steps in attempt to scale back the power and noise of nitro onroad cars. I think ERFA goal is to have a lighter car + a less powerful engine = Less noise = a more green hobby. But you have to convince the engine manufacturers to buy into this concept also.
You never know; with the new weight limits they might change the rules and reduce 1/10 engine to only .10cc and 1/8 scale would go .15cc engines.

Ask yourself this question. WHY DOES THE EFRA WANT A LIGHTER CAR????


Pass you soon...
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Last edited by lil-bump; 12-07-2011 at 08:38 AM.
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Old 12-07-2011, 08:05 AM   #3937
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Originally Posted by lil-bump View Post
I agree. That more efficient designs will yield a lighter car. But that does not explain the reasoning for the lower minimum weight. In my opinion I think the ERFA has taken the first steps in attempt to scale back the power and noise of nitro onroad cars. I think ERFA goal is to have a lighter car + a less powerful engine = Less noise = a more green hobby. But you have to convince the engine manufacturers to buy into this concept also.
You never know; with the new weight limits they might change the rules and reduce 1/10 engine to only .10cc and 1/8 scale would go .15cc engines.

Ask yourself this question. WHY DOES THE EFRA WANT A LIGHTER CAR????


Pass you soon...
Good points and I agree. I still don't rule out pressure from manufactures and racers that are asking for the lower weight limits. My current 8th scale has 85 grams of added weight just to reach 10g above minimum. I wish i could run my car out the box with out the weight because for me it was faster. But you are right, lighter car takes less power. Restrict the engines, kill some noise levels, but maintain current speed. But since we don't fall under EFRA rules I only see a performance benefit with the lower weight.
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Old 12-07-2011, 08:37 AM   #3938
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Originally Posted by quietstorm76 View Post
Good points and I agree. I still don't rule out pressure from manufactures and racers that are asking for the lower weight limits. My current 8th scale has 85 grams of added weight just to reach 10g above minimum. I wish i could run my car out the box with out the weight because for me it was faster. But you are right, lighter car takes less power. Restrict the engines, kill some noise levels, but maintain current speed. But since we don't fall under EFRA rules I only see a performance benefit with the lower weight.
The car you drive is extremely light( no free advertizement). I teched one @ the GLC in Toledo. He said he added almost 50 grams to get 5 grams over.
I can understand if this rule change was pushed from the car manufactures; If so, I believe this should have been proposed to IFMAR not EFRA. Gotta get back to work.


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Last edited by lil-bump; 12-07-2011 at 08:47 AM.
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Old 12-08-2011, 10:49 AM   #3939
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Default Difference between Evo and TE

Other than the SL6, new fuel tank cap and side stiffener, what else does the TE have that the Evo doesn't?
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Old 12-08-2011, 12:11 PM   #3940
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I don't believe the evo came with the connectors for the rear bulkheads and or the three pin brake pulley. I'm not sure what else change other than what has been already listed. I will start my build of the 733 TE in about a week or so.


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Old 12-08-2011, 05:17 PM   #3941
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Originally Posted by rias5037 View Post
Over the weekend i went through three 1st gears(61t), what i noticed on the 1st pinion(16t) is that the teeth on pinion goes into the spur like the tip of a triangle whereas the spur(X marking) looks like it should accept a pinion that has almost like a squared off tip, any1 know what i mean and could this be the cause of my 1st striping all the time?
Yes I have experienced notchy gear mesh when using 16T pinion I think from memory the pinion was Zeppin brand not sure if Serpent gear does the same, however spur didnt strip.
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Old 12-09-2011, 01:24 PM   #3942
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Default Optionals 733

Do know you if 2-speed shaft SL6 light and shaft middle light are available?

Thanks
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Old 12-09-2011, 03:24 PM   #3943
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Originally Posted by lil-bump View Post
I don't believe the evo came with the connectors for the rear bulkheads and or the three pin brake pulley. I'm not sure what else change other than what has been already listed. I will start my build of the 733 TE in about a week or so.


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What are the connectors you talk about?
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Old 12-09-2011, 05:49 PM   #3944
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What are the connectors you talk about?
These
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Serpent 733 1/10 200mm touring-image.jpg  
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Old 12-12-2011, 09:53 PM   #3945
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Hey guys I have been MIA for a while
And I'm starting to get that itch again
I had a 733 when I left rc and now I see
A lot of guys went to the lab co1
What's going on is the 733 still a good
Car and what has changed
It's been about 2years so I need
Some input
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