Go Back  RCU Forums > RC Cars, Buggies, Trucks, Tanks and more > RC 1/8th Scale Buggies
 How many min. per tank do you guys get? (Losi 8ight, any) >

How many min. per tank do you guys get? (Losi 8ight, any)

Notices
RC 1/8th Scale Buggies Discuss the ever popular category of 1/8th scale rc buggies in this forum!

How many min. per tank do you guys get? (Losi 8ight, any)

Old 10-14-2009, 09:18 AM
  #1  
Senior Member
Thread Starter
 
big_poppa49's Avatar
 
Join Date: Jan 2008
Location: Grover, NC
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default How many min. per tank do you guys get? (Losi 8ight, any)

How many min. per full tank are you guys getting with your 8ight (any, 1.0, 2.0, RTR, dont matter)??? I am getting a little above 5 min. on an average off-road track (jumps, whoops, long stretch)

Also, I notice that there is some fuel 'spraying' so to speak, out of my exhaust tip. Is this normal or do I have something set wrong? Its not a whole lot, but I noticed it when I crank it up on my work bench and some things I had sitting about 9" from the buggy has nitro fuel splatters on it. I am still new to nitro, so I dont know if its supposed to do that or if its not. Thanks!

BTW, I have the Losi RTR model with Mach 427 motor.
Old 10-14-2009, 09:27 AM
  #2  
Junior Member
 
Join Date: Jul 2008
Location: Tampa, FL
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

Hi, We race offroad, on most tracks you can get a little over 7 min. Some people say they can get 10 min. I find it very hard to believe though with out running it too hot. What is the temp? 230 to 240 is a good/safe temp. Also, Most people run a fuel filter and 1 to 1.5' of coiled fuel line to help with the run time. You will always get a mist of some kind from the exhaust. Good Luck.
Old 10-14-2009, 09:36 AM
  #3  
Senior Member
Thread Starter
 
big_poppa49's Avatar
 
Join Date: Jan 2008
Location: Grover, NC
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

so a fuel filter would help with run time?? My temps are around 230*.
Old 10-14-2009, 10:00 AM
  #4  
Senior Member
 
rc rock's Avatar
 
Join Date: Dec 2007
Location: nicosia, CYPRUS
Posts: 1,060
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

i run a 10 inch fuel line and a filter on my 808 and i get around 8-9 mins depending on how hard im'pushing the car....
Old 10-14-2009, 10:14 AM
  #5  
Senior Member
 
Join Date: Dec 2007
Location: lewis, KS
Posts: 3,141
Likes: 0
Received 1 Like on 1 Post
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

your fuel mileage will vary from engine to engine....your running rich....
Old 10-14-2009, 12:01 PM
  #6  
Junior Member
 
Join Date: Jul 2008
Location: Tampa, FL
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

The fuel filter gives you a little more fuel volume in the lines. The temp. sounds good, you can try leaning out the low end needle a little at a time. Give it a pinch test, (Clamp fuel line closed about 1.5" from carb.) it should take a couple of seconds to rev out. If it revs instantly its too lean / If it takes 6+ seconds to rev its too rich. Take your time and only make small adjustments at a time, if it runs worse/hotter then move it back to were it was. We ran a MACH427 in my sons losi, they are good motors for the price, but dont last that long and they do not tolerate being run too lean very well. Higher dollar engines make more power with less air, Ex. You can run a V-Spec. w/ small carb. restrictor and make the same power as the MACH with no restrictor. This would all pan out to better fuel economy. Hope it helps.
Old 10-14-2009, 12:47 PM
  #7  
Senior Member
 
Join Date: Jan 2009
Location: Austin, TX
Posts: 629
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

^^ best tuning advice out there. The pinch test.
Old 10-14-2009, 01:25 PM
  #8  
Senior Member
 
Join Date: May 2007
Location: Boca Raton, FL
Posts: 1,106
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

One benefit to a longer fuel line and filter is it gives more run time if you flip the buggy on the track. If your buggy is upside down the fuel pickup in the bottom of the tank cant pull fuel so it runs on what is left in the line until a marshal can get to it and flip it. Run times depend on tuning, surface, carb venturi, driving style, engine type. Pick up the book How to Tune a Nitro Engine and it will walk you through just about anything you need to do to your nitro engine.
Old 10-14-2009, 03:41 PM
  #9  
 
FoamyVictim's Avatar
 
Join Date: Sep 2005
Location: Ft. Walton Beach, FL
Posts: 2,657
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

I had one FLUKE motor that would run for 14 minutes on a tank. It was kickin @ 280, but just kept right on running. It was an old, worn out, yet modified Sportwerks 21 with a blue head. Even when the rod bushing let go, it would still run!
Old 10-14-2009, 05:36 PM
  #10  
Senior Member
 
Chris_RC's Avatar
 
Join Date: Nov 2005
Location: Southern California, CA
Posts: 6,912
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)


ORIGINAL: hrdcoreglf

One benefit to a longer fuel line and filter is it gives more run time if you flip the buggy on the track. If your buggy is upside down the fuel pickup in the bottom of the tank cant pull fuel so it runs on what is left in the line until a marshal can get to it and flip it. Run times depend on tuning, surface, carb venturi, driving style, engine type. Pick up the book How to Tune a Nitro Engine and it will walk you through just about anything you need to do to your nitro engine.
At least do your research before you post BS like that. The 8ight has a clunker type fuel tank so when you are upside down the clunker moves down allowing you to keep idling when flipped over.

I get 9 1/2 minutes on a big track with my modded 427 and 10 1/2 minutes with a vspec and 9mm restrictor on the same track. I have a super smooth throttle figner so I can get alow more unritme than others. For example I dont blip everywhere, I drive it like a modified electric 2wd.
Old 10-14-2009, 06:39 PM
  #11  
Junior Member
 
Join Date: Sep 2009
Location: Porterville, CA
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

i got 3:30 my last race but thats cause i had fuel leaking out from around my cylinder head... it popped off in practice and messed something up...lol

oh its a 8ight w/427
Old 10-14-2009, 09:28 PM
  #12  
 
Join Date: Aug 2007
Location: Roseville, MI
Posts: 1,072
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

Depending on the track size and layout, the run time on a tank will vary, It is no problem for my indoor track to let a tank last 10-11 min. I usually come in for fuel around the 8-1/2 min. mark. On the outdoor track that is big and fast, I get about 8 min. on a tank, I come in for fuel at the 6 min. mark, my modded motor will go about 11 min on a tank on the outdoor track. Just my two cents on this!!!
Old 10-14-2009, 11:12 PM
  #13  
Senior Member
 
melonpeel's Avatar
 
Join Date: Dec 2008
Location: Woodbridge, VA
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

I've got a stock 427 in a losi 8ight 1.0 RTR (hopped up better than a race roller at this point though) and get about 6-7 mins on our track. I don't blip either and throttle is pretty smooth but those motors do like to drink! I've read the blue head versions have a larger carb venturi than the orange head versions. I have it leaned out little but not too much. It sounds perfect and rips at wot and my temps to my knowledge have never gone above 223. My freind's losi truggy 2.0 runs about 9 mins on a novarossi motor. I too had that nitro mist/spit effect from the exhaust during break-in and before I leaned it out some, but haven't noticed it lately. 8 gallons down, and still going strong.

Also, if you haven't done so already.. peek inside your fuel tank. My 8ight had a removable piece inside that will give you more capacity/runtime if taken out.
Old 10-15-2009, 04:16 PM
  #14  
Senior Member
 
Join Date: Mar 2007
Location: davenport, IA
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

ceo modded c6 gets me around 13 mins of "race time" practice can pull 14 mins
Old 10-15-2009, 09:27 PM
  #15  
Member
 
Join Date: Dec 2006
Location: west olive, MI
Posts: 44
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)

If it was a good day my 427 1.0 would get just over 6 min running at 260, loved that temp. Always made sure I topped off right before the start, like someone said before remove the fuel tank capacity plug from inside the tank.
Old 10-15-2009, 10:45 PM
  #16  
Senior Member
Thread Starter
 
big_poppa49's Avatar
 
Join Date: Jan 2008
Location: Grover, NC
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)


ORIGINAL: buglite62

like someone said before remove the fuel tank capacity plug from inside the tank.
Is that legal for racing? Or is it personal choice?? Oh and its a local track, not sure of rules, but its not big event racing or anything
Old 10-16-2009, 12:00 AM
  #17  
Senior Member
 
melonpeel's Avatar
 
Join Date: Dec 2008
Location: Woodbridge, VA
Posts: 113
Likes: 0
Received 0 Likes on 0 Posts
Default RE: How many min. per tank do you guys get? (Losi 8ight, any)


ORIGINAL: big_poppa49


ORIGINAL: buglite62

like someone said before remove the fuel tank capacity plug from inside the tank.
Is that legal for racing? Or is it personal choice?? Oh and its a local track, not sure of rules, but its not big event racing or anything
I don't see why not. If I'm getting 6-7mins at best without the plug racing against guys getting 9-10 mins. there's no real advantage gained.
Old 07-22-2023, 04:45 PM
  #18  
Junior Member
 
Join Date: Jul 2023
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default It's been awhile....

Originally Posted by big_poppa49
How many min. per full tank are you guys getting with your 8ight (any, 1.0, 2.0, RTR, dont matter)??? I am getting a little above 5 min. on an average off-road track (jumps, whoops, long stretch)

Also, I notice that there is some fuel 'spraying' so to speak, out of my exhaust tip. Is this normal or do I have something set wrong? Its not a whole lot, but I noticed it when I crank it up on my work bench and some things I had sitting about 9" from the buggy has nitro fuel splatters on it. I am still new to nitro, so I dont know if its supposed to do that or if its not. Thanks!

BTW, I have the Losi RTR model with Mach 427 motor.
Hi, I know that you submitted your question a long time ago. I was wondering if you had found out what was causing the fuel spattering issue? That is, if you indeed had sorted it out.

Thanks,
Patrick

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Manage Preferences 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.