OS 12 TzR
#436
Do people consider the TZ to be a hot engine. Even while on rich settings the engine runs quite hot. I am using the p6 plug with 15% Nitro and 16% oil. Air temperature is around about 18c. What plugs are people using?
#437
Originally Posted by rs4lola
Hey all you os tz engine owners, how would you rate the tz over the NovaRossi rr12 (which obviously i have...)?? The rr12 is a long stroke and has fantastic bottom end for great acceleration on a short track. Looked at the numbers form article saying 5-port tz makes over 1.8hp/38000 rpm. Impressive..can anyone confirm how this 5-port tz runs?? Willing to change as I know the os is cheaper too...
#438
Tech Fanatic
Cagger... What do you consider a hot motor??? If you're running 15% nitro and 20% oil, I would try the P3 plug. Both the P3 and P6 are hot plugs, but the P3 is newer and gives alittle better performance... What does your motor temp at after running it hard for 4-5 mins??? If you're temping 230-240* that's fine. If you're temp is like 260* and higher then you're running alittle bit to lean and or one of you're needles on your carb is set to lean.. You always want to see some smoke coming out of the pipe and check for ail leaks as well... You might want to also change the fuel you're using as well as checking your carb settings... My TZ screams at 220* F and that temp is when the tank is empty after running a 5min main... I'm running 30% nitro, with about 14% oil and the OS P8 cold plug... Summer time temp of 90* out here is SoCal... There's more info needed to answer your question correctly...
RC_Alan
RC_Alan
#439
There is plenty of smoke coming out and both the HS and LS needles are set near the stock position. I dont have a temp gun so i cant tell the exact temp but i have tried pouring a little bit of fuel onto the engine head and seeing the effect. At the moment it boils off straight away or sits their for about 1/2 a second before boiling off. The engine head feels quite hot to touch. I will be doing some testing tommorow so i will assess the results, im pretty sure its the LS needle thats causing the problem. Im using (15% oil) to correct you.
I think i might be over-reacting. How hot should the engine head feel?
I think i might be over-reacting. How hot should the engine head feel?
Last edited by caggers; 07-07-2005 at 05:02 AM.
#440
Tech Regular
iTrader: (4)
Originally Posted by caggers
There is plenty of smoke coming out and both the HS and LS needles are set near the stock position. I dont have a temp gun so i cant tell the exact temp but i have tried pouring a little bit of fuel onto the engine head and seeing the effect. At the moment it boils off straight away or sits their for about 1/2 a second before boiling off. The engine head feels quite hot to touch. I will be doing some testing tommorow so i will assess the results, im pretty sure its the LS needle thats causing the problem. Im using (15% oil) to correct you.
I think i might be over-reacting. How hot should the engine head feel?
I think i might be over-reacting. How hot should the engine head feel?
#441
Originally Posted by caggers
There is plenty of smoke coming out and both the HS and LS needles are set near the stock position. I dont have a temp gun so i cant tell the exact temp but i have tried pouring a little bit of fuel onto the engine head and seeing the effect. At the moment it boils off straight away or sits their for about 1/2 a second before boiling off. The engine head feels quite hot to touch. I will be doing some testing tommorow so i will assess the results, im pretty sure its the LS needle thats causing the problem. Im using (15% oil) to correct you.
I think i might be over-reacting. How hot should the engine head feel?
I think i might be over-reacting. How hot should the engine head feel?
#442
I have a TZ T3 on my Adam Drake 2 stadium truck and it is running at 190 to 195.The amount of power that the TZ has is unreal.I run 10% oil,P-6 plug and i have taken the .02 head shim off.What i like so much is i don't have to touch the needles,It really keeps its tune.
#443
Tech Elite
iTrader: (15)
tz run on problem
hey guys
i have a problem with my tz 3 port in my fw05rr
now im not sure if its the clutch grabbing or ifs an engine tune problem
what happens is that after a few minutes of driving i get this engine run on problem.
this run on occurs after a full throttlw run, it sounds like the engine is still running even after i closed the throttle. ive tried richening the low end and bottom end but no difference made.
im pretty sure its the clutch setup, the tune seams fine as it takes off nice and clean and has plenty of smoke in the top end.
i am using 16% trinity fuel with a p6 plug, i had the exact same setup on my tr r spec withut any of these problems.
i have a problem with my tz 3 port in my fw05rr
now im not sure if its the clutch grabbing or ifs an engine tune problem
what happens is that after a few minutes of driving i get this engine run on problem.
this run on occurs after a full throttlw run, it sounds like the engine is still running even after i closed the throttle. ive tried richening the low end and bottom end but no difference made.
im pretty sure its the clutch setup, the tune seams fine as it takes off nice and clean and has plenty of smoke in the top end.
i am using 16% trinity fuel with a p6 plug, i had the exact same setup on my tr r spec withut any of these problems.
#444
Tech Fanatic
Originally Posted by mrgsr
hey guys
i have a problem with my tz 3 port in my fw05rr
now im not sure if its the clutch grabbing or ifs an engine tune problem
what happens is that after a few minutes of driving i get this engine run on problem.
this run on occurs after a full throttlw run, it sounds like the engine is still running even after i closed the throttle. ive tried richening the low end and bottom end but no difference made.
im pretty sure its the clutch setup, the tune seams fine as it takes off nice and clean and has plenty of smoke in the top end.
i am using 16% trinity fuel with a p6 plug, i had the exact same setup on my tr r spec withut any of these problems.
i have a problem with my tz 3 port in my fw05rr
now im not sure if its the clutch grabbing or ifs an engine tune problem
what happens is that after a few minutes of driving i get this engine run on problem.
this run on occurs after a full throttlw run, it sounds like the engine is still running even after i closed the throttle. ive tried richening the low end and bottom end but no difference made.
im pretty sure its the clutch setup, the tune seams fine as it takes off nice and clean and has plenty of smoke in the top end.
i am using 16% trinity fuel with a p6 plug, i had the exact same setup on my tr r spec withut any of these problems.
#445
Tech Elite
iTrader: (2)
Join Date: Dec 2003
Location: Cebu City, Philippines and Ocala, Florida, USA
Posts: 3,840
Trader Rating: 2 (100%+)
Originally Posted by Sofast-NT
I have a TZ T3 on my Adam Drake 2 stadium truck and it is running at 190 to 195.The amount of power that the TZ has is unreal.I run 10% oil,P-6 plug and i have taken the .02 head shim off.What i like so much is i don't have to touch the needles,It really keeps its tune.
#446
caggers,
You might be running the wrong fuel. 15% nitro fuel I beleive is intended for planes. 16% is the minimum for IFMAR (Europe).
I would switch fuel first before you go nuts.
john
You might be running the wrong fuel. 15% nitro fuel I beleive is intended for planes. 16% is the minimum for IFMAR (Europe).
I would switch fuel first before you go nuts.
john
#447
Tech Elite
iTrader: (75)
Quick Q for you guys... the specs on the TZs have the SG motors using 1/4-28 standard threads on the crankshaft, and 5mm diameter with 0.8 pitch threads on the "threaded" shaft motors.
Is this correct? Seems to completely fly in the face of every other SG shaft motor out there. If this is correct, then what the heck are you guys using for clutch nuts? I plan on using one in an NTC3, and I know the clutch nuts for SG shafts from Associated are metric for every motor out there. Does anyone have on in a NTC3 out there? Should be a direct drop-in, right?
Is this a typo? I'm confused.
The FS26S-C from OS is a 4-stroke that uses 1/4-28 threads on the crank, and I'm exploring options for adapting standard Associated TC/GT clutches to that engine.
Is this correct? Seems to completely fly in the face of every other SG shaft motor out there. If this is correct, then what the heck are you guys using for clutch nuts? I plan on using one in an NTC3, and I know the clutch nuts for SG shafts from Associated are metric for every motor out there. Does anyone have on in a NTC3 out there? Should be a direct drop-in, right?
Is this a typo? I'm confused.
The FS26S-C from OS is a 4-stroke that uses 1/4-28 threads on the crank, and I'm exploring options for adapting standard Associated TC/GT clutches to that engine.
#449
Tech Regular
Some guys say they've seen this engine keep up with novarossi'd jp's sirio's and all the rest in that class, some say on the higher speed tracks the tz doesnt keep up. JP's run around 400, correct me if im wrong, and the tz 5 port can be bought for 210? Is the performance of jp and similar engine's worth a 200 dollar or more diffrence? Personally for 200 more, it should be on a COMPLETLY other level of performance, but from what i hear, it really isnt.
#450
Tech Elite
Originally Posted by Jye
Some guys say they've seen this engine keep up with novarossi'd jp's sirio's and all the rest in that class, some say on the higher speed tracks the tz doesnt keep up. JP's run around 400, correct me if im wrong, and the tz 5 port can be bought for 210? Is the performance of jp and similar engine's worth a 200 dollar or more diffrence? Personally for 200 more, it should be on a COMPLETLY other level of performance, but from what i hear, it really isnt.
yup.agree.i saw a couple of tz's run,and they scream