Arrow Racing GTR .21 Engine Thread
#227
Tech Addict
Joined: Jan 2009
Posts: 654
My arrow was great today,runs very good. I think it runs better than any engine I have ever ran. I will be running these for a long time. Mine has a very mild mod on it and the run time is real good. Not broke in all the way yet,so have not put a full race tune on it yet,still a tiny bit rich. Will see how tuff they are cause I run my engines right on the edge. Allso I think will try a diff pipe the ttr 2035 is holding it back a bit on the top end. Think the re11 is the the pipe to run.
#228
Tech Addict
iTrader: (13)
Joined: Aug 2007
Posts: 702
We ran a RE10, 6.5 restricter, steel flywheel, 2 alu. and 2 comp, and I was willing to give up some run time for it, but after a 7 min, dry track qualifier, I was at the seam on the tank, and temped at 220. Great power, and fairly smooth, Overall great motor, I'm at 2 gallons now
Last edited by akiyama77; 06-19-2011 at 10:35 PM.
#234
Tech Addict
Joined: Jan 2009
Posts: 654
Any pipe that works on a vspec/speed will work. The engine rocks,just take you're time with the breakin.I am running od 97 plug ttr2035 pipe hot bodies plastic clutch 1.0 springs 30% fuel 6mm restrictor. Still a tiny bit rich on the top,but still getting great run time and power. Its real smooth but not to smooth,and runs like swiss watch,will just sit and idle after a long race. Enjoy man!
#235
Tech Addict
iTrader: (13)
Joined: Aug 2007
Posts: 702
a few weeks ago we ran a 12 min main on the same track and finished on
ONE tank!
here's my setup
6.5mm restrictor
nova 9901 pipe w/ 41021 headder
sidewinder strike 30%
steel flywheel 2 comp w/green springs, 2 alu w/ gold springs (std losi setup)
os p3 plug
13/48 gear ratio
motor has about 1 gallon on it, and i took out the break in shim before the race
we ran a 20 min main, came in at 10 min, and took only 100cc, I used a Losi fuel gun.
Hope this helps
#238
Break in on these arent bad at all.. To me no worse than a VSpec. There is slightly more pinch so you definately want to use a heat gun. Ive had much much much worse engines to break in. Its a very smooth engine and has impressed me with that fact alone.
#239
i remember you telling me about the losi pipe that seems to work good. i just forgot was it the RE10 or RE11. bottom-end is great but i want a little more up top. is the RE11 the top-end pipe?
thanks
thanks
#240
RE-10= 2060, RE-11=2050
I always liked the 2050 better in buggy but the 2060 comes with the ) shaped manifold which is better for low end. I think you will be happy with either one. They are both just cheap alternatives to the $150 OS pipes
I always liked the 2050 better in buggy but the 2060 comes with the ) shaped manifold which is better for low end. I think you will be happy with either one. They are both just cheap alternatives to the $150 OS pipes



