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Old 05-07-2012, 06:14 PM   #31
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im having issues with high temps. i got a good smoke trail coming out. this is running byrons 20% 12% oil. would one of the fuels mentioned above help with this?
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Old 05-07-2012, 07:28 PM   #32
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im having issues with high temps. i got a good smoke trail coming out. this is running byrons 20% 12% oil. would one of the fuels mentioned above help with this?
High oil% can mean higher temps but it has a larger tuning window. OD's Speed blend is 8% and Werks can't be too far off that number, although they don't say what the % is.
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Old 05-07-2012, 07:53 PM   #33
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that is most likely a air leak issue. Try sealing the backplate and around the base of the Carb with three bond liquid gasket. You can get it at most motorcycle shops. That or it is a tune issue. Set the idel gap at 1mm and tune off that. first is the High speed needle. Tune it so that after a wide open pass when you let off the gas the Rpms drop down instantly to an idel. If it hangs up it is to lean. Go as lean as you can before this happens than richen it up till an hour. next is the low speed needle. If after a wide open pass the rpms drop down than pick back up at idle than the low speed is to lean. if it drops off and bogs down at idle than it is to rich. make sure that there is a smooth response from idle as well.

Now comes the temp gun. After tuning as above your temps should be somewhere between 210 and 240 after a few wot passes. bring it back to you and let it idle you should see the temps dropping by 1 degree every 2-3 seconds. if it is you are good to go.
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Old 05-07-2012, 08:06 PM   #34
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I run both in 2 different OS. Speed's. I think that qualifies for decent amounts of power. Just so happens I had to replace the front bearing in the engine with the most Werks ran through it That was at 4 gallons. My other Speed running speed blend is still going strong on 6 gallons.
Speed is not a sensitive to this, and the power is modest compared to the modifieds we run..... a engine like my P5 is substantially faster with a much stronger crankcase vacuum........... Speed blend is not a suitable fuel for engines like my modifieds, too thin and unable to make a proper seal in the crankcase
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Old 05-07-2012, 09:08 PM   #35
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that is most likely a air leak issue. Try sealing the backplate and around the base of the Carb with three bond liquid gasket. You can get it at most motorcycle shops. That or it is a tune issue. Set the idel gap at 1mm and tune off that. first is the High speed needle. Tune it so that after a wide open pass when you let off the gas the Rpms drop down instantly to an idel. If it hangs up it is to lean. Go as lean as you can before this happens than richen it up till an hour. next is the low speed needle. If after a wide open pass the rpms drop down than pick back up at idle than the low speed is to lean. if it drops off and bogs down at idle than it is to rich. make sure that there is a smooth response from idle as well.

Now comes the temp gun. After tuning as above your temps should be somewhere between 210 and 240 after a few wot passes. bring it back to you and let it idle you should see the temps dropping by 1 degree every 2-3 seconds. if it is you are good to go.
i already sealed the whole engine. i know my front bearing in the engine is leaking a bit. would the fuel tank lid not being sealed good cause a high temp in the engine?

yea im waiting on a new spring to come that holds the fuel tank lid down. then i can get out and tune it better. see i have an aluminum fuel tank, and i been having trouble trying to get a lid to fit good and seal around the neck of the tank. i bought like 3 different aluminum tank lids, now im using the stock black plastic lid with an extra o-ring in it to help seal it.
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Old 05-07-2012, 09:09 PM   #36
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High oil% can mean higher temps but it has a larger tuning window. OD's Speed blend is 8% and Werks can't be too far off that number, although they don't say what the % is.
well the byrons i run is 12% oil. and the quart i just got is only 10% oil. i will see how that does when i can get out and run it.
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Old 05-08-2012, 05:36 AM   #37
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Speed is not a sensitive to this, and the power is modest compared to the modifieds we run..... a engine like my P5 is substantially faster with a much stronger crankcase vacuum........... Speed blend is not a suitable fuel for engines like my modifieds, too thin and unable to make a proper seal in the crankcase
Dude, that's great! In a perfect world where ALL of us run "your" moded engines and ALL that power is transfered through a magic tire down to the dirt and it sticks like a 10th scale muchmore tire to a hot sun beat on road track (oh, forgot to mention fuel milage too) we would be able to compare, but this is a frickin 3.3 engine here... Speed blend is a GREAT fuel to run! No problems with it running $500 engines. Oh yeah, one of mine is moded too...

What I don't understand is EVERYTHING you post about always turns into "YOUR" moded engines some way or another.
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Old 05-08-2012, 07:09 AM   #38
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Any input on O D tblend ? My kid went to the lhs and brought some back last night because thats all they had . It is 20% and says its for rtr monster trucks .
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Old 05-08-2012, 07:56 AM   #39
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Dude, that's great! In a perfect world where ALL of us run "your" moded engines and ALL that power is transfered through a magic tire down to the dirt and it sticks like a 10th scale muchmore tire to a hot sun beat on road track (oh, forgot to mention fuel milage too) we would be able to compare, but this is a frickin 3.3 engine here... Speed blend is a GREAT fuel to run! No problems with it running $500 engines. Oh yeah, one of mine is moded too...

What I don't understand is EVERYTHING you post about always turns into "YOUR" moded engines some way or another.
Well it doesn't matter how snotty you get, the facts are still the same OD Speed Blend is much inferior to Werks and Byrons........... My engines create much higher levels of crankcase vaccuum and the OD fuel cannot contain it.............. If a day comes and you run a engine with the type of power we run you would also encounter the exact same issues with the OD fuels we encountered.....Werks and Byrons are much better fuels, they have a much better crankcase seal... Stock or mild engines are not as afected......... And just because you had someone else mod a Speed doesn't mean its in the same class as my engines, a Speed is only a 3 port and that limits what it is capable of compared to 5 and 7 ports.............

edit.... there is a pile of data on the differences between the different fuels, what the effects are and the reasons why...however it is difficult for me to take the time to write a small novel on the topic, I just do not have that kind of free time....... If you wish to discuss this please just call me, and I will gladly explain why i say the things I do..........I am not talking out of my rectum, the fuels I recommend will perform better and your engine will live a happier life because of it...I have better things to do with my time then get into arguments about fuels, but when the manufacturers put out products with less then desirable characteristics it makes my job more difficult
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Old 05-08-2012, 08:01 AM   #40
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i already sealed the whole engine. i know my front bearing in the engine is leaking a bit. would the fuel tank lid not being sealed good cause a high temp in the engine?

yea im waiting on a new spring to come that holds the fuel tank lid down. then i can get out and tune it better. see i have an aluminum fuel tank, and i been having trouble trying to get a lid to fit good and seal around the neck of the tank. i bought like 3 different aluminum tank lids, now im using the stock black plastic lid with an extra o-ring in it to help seal it.
Yes that would cause your temp problem. Not sealing means that the pressure sent to the tank by the pressure line is just leaking out the lid rather than creating fuel pressure. This is causing the motor to run lean. I recomend just going back to the stock plastic tank since you are having such problems. What type of truck do you have?
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Old 05-08-2012, 08:14 AM   #41
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So does anyone have any real Data on why Traxxas fuel sucks or does everyone just have a make believe Chemical engineering degree, or a metallurgy degree to say the sleeve and pistons are more stressed after running Traxxas fuels? While Traxxas Fuels may not be the most powerful Race fuels they do contain a Blend of Synthetic oils and real Castor oil. Castor oil is more expensive than most synthetics which is one reason a lot of people dont use it any more. But having two types of lube does provide a high level of lubrication. So until someone has some real proof as to why everything Traxxas sucks use whatever brand you want.
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Old 05-08-2012, 11:51 AM   #42
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Doesn't take a genius to put it in their truck and go "You know what my truck runs like @*#% on this trx fuel" what more proof do you need than that?
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Old 05-08-2012, 12:00 PM   #43
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Yes that would cause your temp problem. Not sealing means that the pressure sent to the tank by the pressure line is just leaking out the lid rather than creating fuel pressure. This is causing the motor to run lean. I recomend just going back to the stock plastic tank since you are having such problems. What type of truck do you have?
well sometimes i get it to seal around the tank neck. i can turn the truck upside down and no fuel comes out. just sometimes when im running the pressure pops the lid up some and fuel comes out. im running a modded up traxxas 3.3 t maxx. the fuel tank cost me $50.00. i think i got it sealed pretty good this time, im just waiting for the spring to come for the tank lid.
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Old 05-08-2012, 04:20 PM   #44
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Now are you taking about your traxxas engine? Or what engine are u running? Mine runs like a top. I have a 3.3. an o.s. .18, and a picco .26. All run just fine one traxxas fuel. so are you going to tell me my o.s. and picco motors dont run good?
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Old 05-08-2012, 04:22 PM   #45
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Never ran that product before. I've run traxxas, byron and O'donnel and O'donnel is my favorite. If you have anything other than a traxxas, stay away from traxxas fuel.
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