Go Back  R/C Tech Forums > General Forums > Nitro On-Road
Serpent 748 200mm nitro onroad kit >

Serpent 748 200mm nitro onroad kit

Community
Wiki Posts
Search
Like Tree18Likes

Serpent 748 200mm nitro onroad kit

Thread Tools
 
Search this Thread
 
Old 08-16-2014, 08:21 PM
  #211  
Tech Apprentice
 
Join Date: Sep 2009
Location: Orlando, FL
Posts: 54
Default

Jamison R. The part # for the "Flex system" is 903576. You can find it here http://serpent.com/product/903576/. It consists of 2 small bearings, cone washers and flat head screws. You can't just place 2 screws in that area, and expect it to operate correctly.
Ashton Brinson is offline  
Old 08-16-2014, 09:03 PM
  #212  
Tech Elite
iTrader: (89)
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 3,036
Trader Rating: 89 (100%+)
Default

Originally Posted by Ashton Brinson
Jamison R. The part # for the "Flex system" is 903576. You can find it here http://serpent.com/product/903576/. It consists of 2 small bearings, cone washers and flat head screws. You can't just place 2 screws in that area, and expect it to operate correctly.

Hmmmm interesting. I think this part is used for the 977 only . If there are inserts I think it would be included with part number 804355. Unfortunately there are no pics of this part.


Pass you soon...
lil-bump is offline  
Old 08-17-2014, 02:13 AM
  #213  
R/C Tech Elite Member
iTrader: (66)
 
Jamison R's Avatar
 
Join Date: Jan 2010
Location: VA Beach
Posts: 3,624
Trader Rating: 66 (100%+)
Default

Originally Posted by Ashton Brinson
Jamison R. The part # for the "Flex system" is 903576. You can find it here http://serpent.com/product/903576/. It consists of 2 small bearings, cone washers and flat head screws. You can't just place 2 screws in that area, and expect it to operate correctly.
This looks very interesting. I hope it does fit the flex system on the 748.
Jamison R is offline  
Old 08-17-2014, 02:27 AM
  #214  
Tech Master
 
Julius's Avatar
 
Join Date: Oct 2003
Location: Amsterdam Netherlands
Posts: 1,063
Default

Originally Posted by Jamison R
This looks very interesting. I hope it does fit the flex system on the 748.
No that will not fit. The 748 flex system is similar but uses smaller bearings screws and top shim.
Julius is offline  
Old 08-17-2014, 03:05 AM
  #215  
R/C Tech Elite Member
iTrader: (66)
 
Jamison R's Avatar
 
Join Date: Jan 2010
Location: VA Beach
Posts: 3,624
Trader Rating: 66 (100%+)
Default

Originally Posted by Julius
No that will not fit. The 748 flex system is similar but uses smaller bearings screws and top shim.
Do you know the bearing size?
Jamison R is offline  
Old 08-17-2014, 09:13 AM
  #216  
Tech Elite
iTrader: (27)
 
dan_vector's Avatar
 
Join Date: Oct 2013
Posts: 4,332
Trader Rating: 27 (100%+)
Default

Flex System 748 is P/N: 804355 as it's an option part as specified in the manual so I'm assuming it will have the extra bits needed (over the kit supplied parts 804330 & 804339)

Last edited by dan_vector; 08-17-2014 at 09:20 AM. Reason: Number error
dan_vector is offline  
Old 08-17-2014, 09:27 AM
  #217  
Tech Elite
iTrader: (27)
 
dan_vector's Avatar
 
Join Date: Oct 2013
Posts: 4,332
Trader Rating: 27 (100%+)
Default

Well the natrix is finished and ready to go on the setup board. The car went together perfectly with no issues with the fit and finish. Superb just as I expect from Serpent.

Only issue I do have is that the throttle servo horn hits the radio box near full throttle. Trouble is I can't get my servo (Sanwa SRG-BLS v2) further in towards the centre of the car no matter what I try shimming etc. Anyone else have the same/similar issue? I'm thinking I'll need to try a different servo with a shallower gear case?
dan_vector is offline  
Old 08-18-2014, 03:27 AM
  #218  
Les
Tech Addict
iTrader: (2)
 
Les's Avatar
 
Join Date: May 2007
Posts: 629
Trader Rating: 2 (100%+)
Default

Hey Dan, what is the race ready weight ?
Cheers
Les is offline  
Old 08-18-2014, 04:47 AM
  #219  
R/C Tech Elite Member
iTrader: (66)
 
Jamison R's Avatar
 
Join Date: Jan 2010
Location: VA Beach
Posts: 3,624
Trader Rating: 66 (100%+)
Default

Originally Posted by dan_vector
Well the natrix is finished and ready to go on the setup board. The car went together perfectly with no issues with the fit and finish. Superb just as I expect from Serpent.

Only issue I do have is that the throttle servo horn hits the radio box near full throttle. Trouble is I can't get my servo (Sanwa SRG-BLS v2) further in towards the centre of the car no matter what I try shimming etc. Anyone else have the same/similar issue? I'm thinking I'll need to try a different servo with a shallower gear case?
My car servo arm is close but set my sub trim to just get close to rx box. Then adjust linkage to get full throttle. Your not going to be able to move servo in towards tank.
Jamison R is offline  
Old 08-18-2014, 05:57 AM
  #220  
Tech Elite
iTrader: (89)
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 3,036
Trader Rating: 89 (100%+)
Default

I just had my first test and tune with the 748 and all I can say is WOW!!!!
This car is extremely quick in the turns. My final weight with Li-fe battery lp servos 1 futaba and 1 Hitec with 25 gram bias weight 1695 grams. I want to thank all of the Serpent team drivers that contributed the Natrix 748 project.

Pass you sooner...
lil-bump is offline  
Old 08-18-2014, 06:58 AM
  #221  
Tech Elite
iTrader: (27)
 
dan_vector's Avatar
 
Join Date: Oct 2013
Posts: 4,332
Trader Rating: 27 (100%+)
Default

Originally Posted by Les
Hey Dan, what is the race ready weight ?
Cheers
With full size tyres (62/60) carbon rim contacts its 1725gr. Novarossi Virtus, Sanwa SRG-BLS v2 servos, 1600 life pack (80gr), 25gr sliding weight and 2x 5gr serpent round weights under the 2speed shaft, my laps 2 wire transponder, Protoform VRS lightweight body (with protoform hard high downforce wing). Steel screws in chassis, alu screws in radio plate.
dan_vector is offline  
Old 08-18-2014, 07:01 AM
  #222  
Tech Elite
iTrader: (27)
 
dan_vector's Avatar
 
Join Date: Oct 2013
Posts: 4,332
Trader Rating: 27 (100%+)
Default

Originally Posted by Jamison R
My car servo arm is close but set my sub trim to just get close to rx box. Then adjust linkage to get full throttle. Your not going to be able to move servo in towards tank.
I've ended up changing the servo horn to a sanwa horn and with a bit of dremel work made it find nicely. I wanted to keep the horn at a slight bias to the rear to maximum pull on the brakes. I will have another play with the stock horn and linkage lengths etc after my first runs with the car.
dan_vector is offline  
Old 08-18-2014, 02:02 PM
  #223  
Tech Fanatic
iTrader: (25)
 
shanwright's Avatar
 
Join Date: Jan 2011
Location: Brisbane, Northside
Posts: 812
Trader Rating: 25 (100%+)
Default Weight?

Originally Posted by lil-bump
I just had my first test and tune with the 748 and all I can say is WOW!!!!
This car is extremely quick in the turns. My final weight with Li-fe battery lp servos 1 futaba and 1 Hitec with 25 gram bias weight 1695 grams. I want to thank all of the Serpent team drivers that contributed the Natrix 748 project.

Pass you sooner...
Hi guys what is the minimum weight for the class you run in the US.
shanwright is offline  
Old 08-18-2014, 04:38 PM
  #224  
Tech Elite
iTrader: (89)
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 3,036
Trader Rating: 89 (100%+)
Default

Originally Posted by shanwright
Hi guys what is the minimum weight for the class you run in the US.
1650 grams

Pass you soon....
lil-bump is offline  
Old 08-18-2014, 05:23 PM
  #225  
wad
Tech Elite
iTrader: (1)
 
wad's Avatar
 
Join Date: Jan 2004
Location: Tustin, CA
Posts: 2,284
Trader Rating: 1 (100%+)
Default

Originally Posted by Jamison R
This looks very interesting. I hope it does fit the flex system on the 748.
The inserts from the 977 fits perfectly. I have been using them with no issues.
wad is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.