Go Back  R/C Tech Forums > General Forums > Nitro On-Road > Onroad Nitro Engine Zone
OS R21 .21 1/8 On-road Motor >

OS R21 .21 1/8 On-road Motor

Like Tree47Likes

OS R21 .21 1/8 On-road Motor

Old 09-15-2021, 10:15 AM
  #121  
Tech Adept
 
Byronf1's Avatar
 
Join Date: Dec 2013
Location: Guatemala
Posts: 144
Default

Originally Posted by rc_hydro View Post
Hi ByronF1,
Which pipe and header you are running on your R21 / SRX8TQ?
I run same chassis & I've so far tested the R21 with Hipex S48 manifold and 2108 pipe, 19/24 pinions and 58/63 spurs. Felt very strong low end, and very smooth transition but not a super high rpm. I didn't do a timed run to check fuel consumption. I'd dare say this combo will do 7 minutes comfortably. I'm planning to try the NR 41032 manifold and different pipes on it soon.
I am running with NR41032, HongNor 048 is large pipe, our track has a straight about 54mt and the inside is very technical, so it is not a flow track or fast.
I changed the carburator because I felt the original the setting of the needles was so loose, I put a old carburator from another engine I broke was PoweMax 2015 21GT, and also change the cooling head from ONE motoros for the R21. Same Pinions 57/62 spur. I think for the consumption the clutch has to be fine, and the combo for header/pipe.
The OS GT Combo I saw in our track > 8min almost 9, but it is little slow
rc_hydro likes this.
Byronf1 is offline  
Old 11-15-2021, 08:53 PM
  #122  
Tech Regular
 
3DFLYER's Avatar
 
Join Date: Nov 2014
Posts: 298
Default

Does anyone have experience with the new Hasi R21 7 port?

3DFLYER is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.