Go Back  R/C Tech Forums > General Forums > Nitro Off-Road > Offroad Nitro Engine Forum
Arrow Racing GTR .21 Engine Thread >

Arrow Racing GTR .21 Engine Thread

Community
Wiki Posts
Search

Arrow Racing GTR .21 Engine Thread

Thread Tools
 
Search this Thread
 
Old 01-20-2012 | 05:01 PM
  #406  
Tech Adept
iTrader: (35)
 
Joined: Mar 2010
Posts: 219
From: Auburn, Ca
Default

Those shocks look like there off of a losi truggy?
Hobbs263 is offline  
Old 01-20-2012 | 05:20 PM
  #407  
Hobby Pro USA
Guest
 
Posts: n/a
Default

They are losi buggy springs. I like how short they are, so they don't rub on the shock bodies. Also, josh cyrul said sorter springs worked way better on his agama. I also tried front agama gray springs on the rear. I've only tried them once but they worked good. My buggy is so light that I can not get proper ride height with the stock springs.
 
Old 01-20-2012 | 07:09 PM
  #408  
stallen50's Avatar
Tech Master
iTrader: (30)
 
Joined: May 2010
Posts: 1,209
Default

Originally Posted by Hobby Pro USA
They are losi buggy springs. I like how short they are, so they don't rub on the shock bodies. Also, josh cyrul said sorter springs worked way better on his agama. I also tried front agama gray springs on the rear. I've only tried them once but they worked good. My buggy is so light that I can not get proper ride height with the stock springs.
+1
stallen50 is offline  
Old 01-20-2012 | 11:49 PM
  #409  
Rsickles's Avatar
Tech Master
iTrader: (21)
 
Joined: Aug 2010
Posts: 1,337
From: Southeast USA
Default

FWIW, Arrow rod is one beefy SOB. Something like 25% heavier than norm V-Spec rod. Didn't weigh against a Speed rod yet.

No one should be breaking an Arrow rod.
Rsickles is offline  
Old 01-23-2012 | 09:20 AM
  #410  
Tech Apprentice
 
Joined: Jan 2012
Posts: 84
Default

Break-in was a little hard. Mechanical pinch.
Took about 1 gallon. Compression will be very good.
In fact none of the engine are easy except a OS.
That's explain why the OS didn't last long.

For the price, one of the best engine and performance too.
I don't know much about Arrow but they have good engine.
pcage is offline  
Old 01-23-2012 | 10:01 AM
  #411  
stallen50's Avatar
Tech Master
iTrader: (30)
 
Joined: May 2010
Posts: 1,209
Default

Originally Posted by pcage
Break-in was a little hard. Mechanical pinch.
Took about 1 gallon. Compression will be very good.
In fact none of the engine are easy except a OS.
That's explain why the OS didn't last long.

For the price, one of the best engine and performance too.
I don't know much about Arrow but they have good engine.
if you use the breakin shim in the box goes a lil easier. but all in all awesome engine
stallen50 is offline  
Old 01-23-2012 | 09:48 PM
  #412  
Tech Apprentice
 
Joined: Jan 2012
Posts: 84
Default

tq for the tips. What venturi are you running and what sort of run times I am looking at ?

The engine comes alive after the break in. Lots of power and lightning response.
Still running a little fat. Run times is about 9+ mins.
Might need to run my shock softer.

Last edited by pcage; 01-23-2012 at 09:59 PM.
pcage is offline  
Old 01-24-2012 | 06:31 AM
  #413  
Hobby Pro USA
Guest
 
Posts: n/a
Default

Originally Posted by pcage
tq for the tips. What venturi are you running and what sort of run times I am looking at ?

The engine comes alive after the break in. Lots of power and lightning response.
Still running a little fat. Run times is about 9+ mins.
Might need to run my shock softer.
I use the 6.5mm. I get between 8-12 depending on track, temp, and humitity levels. Normally in FL I have just under half a tank after a 5 min qualifier. In CA at the Nats, I had well over half a tank after 5 min. Better air = better fuel mileage.
 
Old 01-24-2012 | 11:14 AM
  #414  
stallen50's Avatar
Tech Master
iTrader: (30)
 
Joined: May 2010
Posts: 1,209
Default

Originally Posted by pcage
tq for the tips. What venturi are you running and what sort of run times I am looking at ?

The engine comes alive after the break in. Lots of power and lightning response.
Still running a little fat. Run times is about 9+ mins.
Might need to run my shock softer.
i am running indoors pitted half way in a 15min main and after the race i had a lil over 1/2 tank left. 10+ mins. depends on your finger
stallen50 is offline  
Old 01-25-2012 | 08:40 AM
  #415  
nitrofuel's Avatar
Tech Apprentice
 
Joined: Jan 2011
Posts: 90
Default

Hi Guys,

Arrow Engine present one or two version ? and different?

Best Pipe ?

Thank you
nitrofuel is offline  
Old 01-25-2012 | 09:08 AM
  #416  
stallen50's Avatar
Tech Master
iTrader: (30)
 
Joined: May 2010
Posts: 1,209
Default

the second version has the stronger case, and maybe something else but i dont remember. i have the 2nd version and i have tryed dynamite053/086 pipe,0801,2013. and liked all of them. if you are looking for a smooth one with good mileage the 053 pipe, or if you are looking for a torque pipe 0801 has it all lowend and highend. i have found that arrow likes just about all pipes.lol
stallen50 is offline  
Old 01-25-2012 | 03:51 PM
  #417  
Jaz240's Avatar
Tech Lord
iTrader: (52)
 
Joined: Aug 2008
Posts: 12,494
From: Dwindle city
Default

Version 2 has an updated case that holds the bearings in place and an updated carb with larger O-rings to hold the needles in place. everything is in place now...
Jaz240 is offline  
Old 01-25-2012 | 04:23 PM
  #418  
stallen50's Avatar
Tech Master
iTrader: (30)
 
Joined: May 2010
Posts: 1,209
Default

Originally Posted by Jaz240
Version 2 has an updated case that holds the bearings in place and an updated carb with larger O-rings to hold the needles in place. everything is in place now...
lol
stallen50 is offline  
Old 01-25-2012 | 11:31 PM
  #419  
Tech Initiate
 
Joined: Jan 2012
Posts: 39
Default

I have both an arrow and a vspec and they are very similar... But the quality of workmanship on the arrow leaves something to be desired. Some of the bits on the arrow look like they were dremelled out by a blind man. Still its nice to know i can find replacement parts for the vspec much cheaper and the relocation of the oiling hole is a great idea.

Leftover Vspecs go for similar money nowadays.. maybe $30 or $40 more. It's a real tossup between the two. The vspec is probably the better buy.. then just buy an arrow crank, psr etc after 6 gallons. The quality of the 21j carb is way better than the arrow carb. Smoother, better materials/workmanship.
Khanuen is offline  
Old 01-26-2012 | 10:31 AM
  #420  
stallen50's Avatar
Tech Master
iTrader: (30)
 
Joined: May 2010
Posts: 1,209
Default

Originally Posted by Khanuen
I have both an arrow and a vspec and they are very similar... But the quality of workmanship on the arrow leaves something to be desired. Some of the bits on the arrow look like they were dremelled out by a blind man. Still its nice to know i can find replacement parts for the vspec much cheaper and the relocation of the oiling hole is a great idea.

Leftover Vspecs go for similar money nowadays.. maybe $30 or $40 more. It's a real tossup between the two. The vspec is probably the better buy.. then just buy an arrow crank, psr etc after 6 gallons. The quality of the 21j carb is way better than the arrow carb. Smoother, better materials/workmanship.
eats their own;. the piece your talking about the carb pinch bolt? if so from the looks of it they wanted it that way
stallen50 is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.