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-   -   TQ Engines (https://www.rctech.net/forum/offroad-nitro-engine-forum/388980-tq-engines.html)

brian kadow 07-21-2010 07:40 AM

I have tried the Werks pipe and the Dynamite pipe amd I ended up back with the TQ pipe. The TQ pipe is very soft so try to avoid any side impacts. ;)

Tony Newland 07-21-2010 08:01 AM

jp2 is supposed to be pretty good too

which dynamite pipe did you try? I have an 086 to run with mine when it shows up.

Also have a 2050, 2013 and 3ch nova pipe

brian kadow 07-21-2010 09:39 AM

053 = made ok power but raised the temp about 20 deg.

PowerHouse 07-21-2010 03:54 PM


Originally Posted by brian kadow (Post 7699869)
053 = made ok power but raised the temp about 20 deg.


If you are running the dynamite or ofna based pipe with the shorter header, the overall pipe length is probably too short for the exhaust/transfer timing. When an engine's temps jump 20+ degrees for no reason, that is an indicator that the pipe is not scavaging correctly. Try switching out the header with a longer one. If it is the header I think it is, add about 12-13mm to the header length and that should bring it around without much loss of peak rpm if any and it will also improve average hp and torque numbers throughout the powerband.

Chill_Will 07-21-2010 05:09 PM

Thanks for that info Powerhouse. :nod:

maxmcnasty 07-25-2010 05:35 AM

problem getting engine started
 
so i have a new tq .21 and started the break in how ever the engine will not fire.I got the engine to run for about 10 seconds and died not to start again. So i checked the plug turned in the main needle about 1/4 turn and made sure fuel was getting to the carb which it was. I am using 30% nitro with a high oil content for the break in.a few times after bumping the flywheel at the end of the compression stroke it would pop one single time but would not fire. Any info would be greatly appreciated.

gtsum 07-25-2010 05:42 AM


Originally Posted by maxmcnasty (Post 7715314)
so i have a new tq .21 and started the break in how ever the engine will not fire.I got the engine to run for about 10 seconds and died not to start again. So i checked the plug turned in the main needle about 1/4 turn and made sure fuel was getting to the carb which it was. I am using 30% nitro with a high oil content for the break in.a few times after bumping the flywheel at the end of the compression stroke it would pop one single time but would not fire. Any info would be greatly appreciated.

lean both needles some more

maxmcnasty 07-25-2010 06:04 AM

ok thanks. Are u a fan of heat cycling method?

teamlosi906 07-25-2010 06:39 AM

engine
 

Originally Posted by maxmcnasty (Post 7715398)
ok thanks. Are u a fan of heat cycling method?

Check your glow plug ign!! And your glow plug. I had grp plugs bad brand new.I would try another plug.:nod:

RoyJ 07-25-2010 08:05 AM

Max, I would not suggest that you stray too far away from the factory settings just yet. I would start with preheating the engine first, and then turn the idle/air screw by 1/4 turn at a time. Perhaps the carb is just not getting enough air at idle. If it initially ran for about 10 seconds then it's getting fuel, and may have just loaded up. If that's the case, you may want to lean the low-end by 1/8 turn at a time, and put the main needle back where it was.

Once it fires, do not lower the idle to a grumble just yet. Instead, let it run-in the first tank on the box/bench with a medium-low steady idle, to get the temp up. After you get it run-in good on the track, only then should you lower the idle.


Originally Posted by maxmcnasty (Post 7715314)
so i have a new tq .21 and started the break in how ever the engine will not fire.I got the engine to run for about 10 seconds and died not to start again. So i checked the plug turned in the main needle about 1/4 turn and made sure fuel was getting to the carb which it was. I am using 30% nitro with a high oil content for the break in.a few times after bumping the flywheel at the end of the compression stroke it would pop one single time but would not fire. Any info would be greatly appreciated.


zixxer 07-25-2010 08:11 AM

I agree with roy ...i have just broke my engine in last week and raced it yesterday ....i just raised the idle a bit and leaned the lsn a little bit at a time until i could get it to idle on the box ...i had the exact same symtom as yours did ....but following the info that roy gave will get you up and running ...the tq plugs ARE NOT like th eold grp plugs ...they do work and they work very well :nod:

RoyJ 07-25-2010 08:23 AM


Originally Posted by brian kadow (Post 7699390)
I have tried the Werks pipe and the Dynamite pipe amd I ended up back with the TQ pipe. The TQ pipe is very soft so try to avoid any side impacts. ;)

Brian, we have an updated pipe in the works, for more durability. Rody sent me one to test which has a reinforced stinger and a more durable front section. For the time being, I would have a local welder reinforce the stinger on the original pipe. I got one done for nothing, and another for just $5.

The resonance is identical to the current TQ pipe, which is great. I've also experimented (on the track) with the JP3, 053, and 086, and only the 086 came close to the TQ pipe's overal performance, just not as smooth. The TQ pipe seems to have the low-end response of the JP3, the mid of the 053, and the top of the 086. What more could one ask for? :)

Powerhouse is right about the best performance coming from the longer header, which gives the engine the punch needed off corners and jumps.

zixxer 07-25-2010 08:52 AM


Originally Posted by RoyJ (Post 7715783)
Brian, we have an updated pipe in the works, for more durability. Rody sent me one to test which has a reinforced stinger and a more durable front section. For the time being, I would have a local welder reinforce the stinger on the original pipe. I got one done for nothing, and another for just $5.

The resonance is identical to the current TQ pipe, which is great. I've also experimented (on the track) with the JP3, 053, and 086, and only the 086 came close to the TQ pipe's overal performance, just not as smooth. The TQ pipe seems to have the low-end response of the JP3, the mid of the 053, and the top of the 086. What more could one ask for? :)

Powerhouse is right about the best performance coming from the longer header, which gives the engine the punch needed off corners and jumps.

heck yeh roy thats great news on the pipes ..cant wait to get one coming ...i was gonna throw this out there ..i ran the nova 9901/41021 combo this weekend ...the motor seemed to have plenty of rip ...i was getting about 8 to 8:30 of run time running the stock plug on sidewinder strike team 30% fuel and still at rich settings ...im feeling that from what i saw this weekend 10-10:30 will be easily attainable once the motor fully breaks in.....the motors definitely need some fuel through them before you can say you are getting the full potential ...mine broke off to really rich at about the 3 quart mark ...

hey roy can you throw out some of your needle settings for a race tune ...it may help some folks get in the right ball park after there break in :nod:

maxmcnasty 07-25-2010 08:57 AM

awesome. im about to head out and give it a try.Thanks for the advice roy, zixxer, team losi. I will let you know how it works.:batman:

zixxer 07-25-2010 09:08 AM


Originally Posted by maxmcnasty (Post 7715878)
awesome. im about to head out and give it a try.Thanks for the advice roy, zixxer, team losi. I will let you know how it works.:batman:

no worries max ....let us know how things go ....just take some time with the engine and get to know it ...once you do im sure you will be super happy with it .....i was gonna throw this out there as well ...i went back through all my notes and just info i had from back when i was running grp last year ...i found some info from adam drake that may help people get to the "ballpark"
range once there motors are broken in here is the needle settings that the drake recomended for a starting point after break in ....keep in mind all places in the world may differ in atmospheric conditions ....but this would be a good point to start at if you just get things way out of whack

High Speed:
.045 in from flush
Low Speed:
.045 out from flush
Idle Speed:
.030 in from flush


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