Mugen MBX6
#3677
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Its sometime called painters and varnish makers NAPTHA. Its right next to the denatured alcohol and acetone.
#3680
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Ok guys need some help regarding set-up, basically i have been racing almost 2 years no set-up basics etc but have never nought a set-up station and don't change my set-up for wet dry days or for different tracks as i wouldn't no what to change to be fair.
At the minute im using
573 diffs 45f 45r shocks and everything else is standard as by stock set-up sheet. (except droop)
Anyway im racing in a national race this weekend and was told to set the car up for dry weather i have raced on the track before but it has changed a bit since then and that was with my mbx5r.
Track usually run on (dirt type)
Track im running on this weekend (astro turf)
Anyone got any advice, currently just about to by set-up station and been looking through guides etc.
Thanks
Adam
At the minute im using
573 diffs 45f 45r shocks and everything else is standard as by stock set-up sheet. (except droop)
Anyway im racing in a national race this weekend and was told to set the car up for dry weather i have raced on the track before but it has changed a bit since then and that was with my mbx5r.
Track usually run on (dirt type)
Track im running on this weekend (astro turf)
Anyone got any advice, currently just about to by set-up station and been looking through guides etc.
Thanks
Adam
#3681
Tech Adept
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Adam havent run the X6 on astro yet but i would imagine similar to the 5R on astro in that you want to reduce droop, lower ride height, try the diffs but maybe thicker diff oils, shocks sound ok as you are quite heavy already, maybe thicker roll bars as well, upper hole in rear hub (a arm), if it rains the opposite soften everything off
So ended up first in B final got away good and got a lap up on 2nd place then after i refuled coming out of pitlane car flamed out, re started went out in 3rd place got back up to 1st next fuel stop same thing happened fell to 3rd again
![Frown](https://www.rctech.net/forum/classic_images/smilies/frown.gif)
I was robbed
![Frown](https://www.rctech.net/forum/classic_images/smilies/frown.gif)
![Frown](https://www.rctech.net/forum/classic_images/smilies/frown.gif)
ended up 11th bit disappointed 1st-Michael Todd, 2nd Barkley Abernethy, 3rd Alan Bickerstaff
Need to get my engine problem sorted as happened last raceday also and put in a fresh plug and happened again, also another guy who was leading the A final also using the WS9 flamed out after his fuel stops.
Currently using Rb 6 turbo plugs will try the no.5 plugs this week.
Over all the car handled excepetionally have yet to break a single part and wear rate seems very low.
#3682
Tech Adept
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Question for you guru's....
My MBX6 is brand new. When I have the tank full it runs great. After it drops like 1/4" inch of fuel from being full it starts pumping air into the fuel line that goes to the engine. I tried installing another new set of fuel line. I even put some S3 o-rings to try an see if it was an air leak.
I then pulled the tank. Filled a sink full of water, blocked off the fuel line and blew into the tank checking for a cracked tank. Nope...
What would make it run great at a full tank, then 2 minutes later start pumping air into the fuel line? Maybe the pick up tube in the tank that the internal stone filter hooks up to??? It's driving me batty and am very frustrated. Maybe a bad tank from the factory????
Let me know what you think...
David
My MBX6 is brand new. When I have the tank full it runs great. After it drops like 1/4" inch of fuel from being full it starts pumping air into the fuel line that goes to the engine. I tried installing another new set of fuel line. I even put some S3 o-rings to try an see if it was an air leak.
I then pulled the tank. Filled a sink full of water, blocked off the fuel line and blew into the tank checking for a cracked tank. Nope...
What would make it run great at a full tank, then 2 minutes later start pumping air into the fuel line? Maybe the pick up tube in the tank that the internal stone filter hooks up to??? It's driving me batty and am very frustrated. Maybe a bad tank from the factory????
Let me know what you think...
David
Keep me posted on how you go..
#3683
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I had the same problem this weekend again, and so did another guy and we're also beginning to suspect that there's something wrong with the fuel set up on the X6 I removed the fuel filter and it was better but after my second pit stop the car just started stalling on it's own for no apparent reason...
Also, sometimes the engine stalls instantly when i roll over.
i'm changing the tank and this week end i'm gona see if there's a difference.
I noticed some stess lines (bright white) on the front side of the tank near the exhaust mount my idea is that the tank expands when the heat builds and little fractures that don't appear when the tank is tested at room temperature become troublesome air leaks at operating temps.
It's dissapointing because the car was working really well.
Also, sometimes the engine stalls instantly when i roll over.
i'm changing the tank and this week end i'm gona see if there's a difference.
I noticed some stess lines (bright white) on the front side of the tank near the exhaust mount my idea is that the tank expands when the heat builds and little fractures that don't appear when the tank is tested at room temperature become troublesome air leaks at operating temps.
It's dissapointing because the car was working really well.
Last edited by gameholic2; 05-25-2009 at 08:51 AM.
#3684
Tech Addict
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This is how i clean my diffs every so often, cleans them totally and safe! disassemble your diffs entirely, grab your diff internals and install them in a standard tea infuser (in picture below) spray them with brake cleaner (about 8.99 a can at any auto parts store) or dip them in Naphtha, something to break the old diff oil down, keep inside tea strainer, hit with compressed air, clean diff cup abd conical with brake cleaner, hit with compressed air as well, (remove all o-rings and gaskets prior to) then reassemble and ensure to lube your outdrives with belray grease and apply such grease to your O-rings as well...diffs will be butter smooth once complete. ![Nodding](https://www.rctech.net/forum/classic_images/smilies/nod.gif)
http://www.amazon.com/RSVP-Standard-...d_bxgy_k_img_c
![Nodding](https://www.rctech.net/forum/classic_images/smilies/nod.gif)
http://www.amazon.com/RSVP-Standard-...d_bxgy_k_img_c
![](http://ecx.images-amazon.com/images/I/51b9ZHdcRvL._SL500_AA280_.jpg)
#3685
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I had the same problem this weekend again, and so did another guy and we're also beginning to suspect that there's something wrong with the fuel set up on the X6 I removed the fuel filter and it was better but after my second pit stop the car just started stalling on it's own for no apparent reason...
Also, sometimes the engine stalls instantly when i roll over.
i'm changing the tank and this week end i'm gona see if there's a difference.
I noticed some stess lines (bright white) on the front side of the tank near the exhaust mount my idea is that the tank expands when the heat builds and little fractures that don't appear when the tank is tested at room temperature become troublesome air leaks at operating temps.
It's dissapointing because the car was working really well.
Also, sometimes the engine stalls instantly when i roll over.
i'm changing the tank and this week end i'm gona see if there's a difference.
I noticed some stess lines (bright white) on the front side of the tank near the exhaust mount my idea is that the tank expands when the heat builds and little fractures that don't appear when the tank is tested at room temperature become troublesome air leaks at operating temps.
It's dissapointing because the car was working really well.
Sounds like tuning issues..
#3686
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Thats a good idea Jesse!
#3687
Tech Addict
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Thanks Thuren! I might be heading out to the track today, i will give you a ring if i do so we can rip it up.
+1 on possible tuning issues.
Dont freak out thinking its your gas tank, this isnt a Kyosho lol I had flame issues last year, kept on trying to chase down the probable cause, sure nuff it was a tiny leak on my carb, wouldnt notice it till the engine gets hot, leans out, then flames.
check for any obvious leaks, check your tune...90% of the time, its these problems....Mugen Tanks last forever...i usually change them out after 9 to 10 gallons or so, probably no need to, but why not i guess.
+1 on possible tuning issues.
Dont freak out thinking its your gas tank, this isnt a Kyosho lol I had flame issues last year, kept on trying to chase down the probable cause, sure nuff it was a tiny leak on my carb, wouldnt notice it till the engine gets hot, leans out, then flames.
check for any obvious leaks, check your tune...90% of the time, its these problems....Mugen Tanks last forever...i usually change them out after 9 to 10 gallons or so, probably no need to, but why not i guess.
#3688
Tech Adept
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then run into issues as well. Not saying it could be an issue across all x6's but there are enough of us out there having issues to have a good look at the tank as a possibility. Huge amount of air bubbles in the fuel line are a fair indication air is getting in somwhere between the tank and the fuel filter. i suspect the tank.
#3689
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I was having the same problems for a good while. i thought it was my carb, fuel filter, glow plug or fuel. One time is was the plug though. I have a new vspec the would stall out for no reason, and flame out. I would go crazy with the tunning. Not until i settled down and was very patient ( i am not patient AT ALL) did i get the tune right and resolved the issues. Sometime it would take my a hour or two, Its very frustrating when you can't see a problem. But alot of the time your car just isn't getting enough gas, so i would have to start out pretty rich and let it warm up then cut the fat. I am a newbie and some of you maybe pros. but this is my .02 cents.
Fuel tank is fine imo.
Fuel tank is fine imo.
#3690
Tech Adept
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On Mugen springs is 75/9.5 stiffer on softer then a 75/9.75? Just trying to understand the second number rating.