R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Offroad Nitro Engine Forum (https://www.rctech.net/forum/offroad-nitro-engine-forum-157/)
-   -   O'Donnell Super Sport .21 (https://www.rctech.net/forum/offroad-nitro-engine-forum/225498-odonnell-super-sport-21-a.html)

kaptain crash 06-15-2010 09:15 PM


Originally Posted by function>form (Post 7536762)
hey kaptain what track is that?
(your buggy photo)

XRC RACEWAY at Quarryvile Pennsylvania ...Great track need lots of low-end because of all the turns, very fun track. The guys that run it are really stand-up guys and always looking for ways to please the racers.

dannyg1970 06-15-2010 09:56 PM

Has anyone tried a different carb on the SS?? My friend has one and his carb sticking.or does someone have an xtra carb they would like to sell?

Jonathan Bell 06-16-2010 04:43 AM

If the carb is sticking it likely is coming from a burr on the track that the idle screw rides in. Take ou the slide and use a small file to smooth up the track and it will be good as new. This is normally caused by the carb linkage pulling in an angle, to far, or just improper allignment of the carb. Hope this helps.

8ightracer2.0 06-16-2010 08:13 AM

carb sticking
 

Originally Posted by dannyg1970 (Post 7547794)
Has anyone tried a different carb on the SS?? My friend has one and his carb sticking.or does someone have an xtra carb they would like to sell?

i had just talked to Steve O bout this issue as it happened with my SS. you can try what jonathan said as that is what Steve O said he would do to my carb if i sent it in. if you continue to have this issue send it in to Steve and he'll fix it. he stands behind his products a 100% and is very helpful for any questions you may have regarding his products or any other brand for that matter. great guy! great engine! :nod::nod:

:tire::tire::tire::tire:

iglu25 06-16-2010 10:02 AM


Originally Posted by dannyg1970 (Post 7547794)
Has anyone tried a different carb on the SS?? My friend has one and his carb sticking.or does someone have an xtra carb they would like to sell?

Until you get yours fixed a V-Spec carb will fit fine.

Dlewis4 06-16-2010 12:06 PM

Thats what happened to my original one... i threw a Speed Carb on it, then when I got mine back from Steve. Swapped back.

Steve is the man if you have issues with an O product. He is all about taking care of his racers.

Brian Alderman 06-16-2010 02:10 PM


Originally Posted by Dlewis4 (Post 7550088)
Thats what happened to my original one... i threw a Speed Carb on it, then when I got mine back from Steve. Swapped back.

Steve is the man if you have issues with an O product. He is all about taking care of his racers.

:nod:

kaptain crash 06-16-2010 06:09 PM

Yes Steve ...does care....Got a pm on monday from him saying send that motor to him and he would fix it, even ....WAY past the 90 days given. Steve stands behind his product ....LIKE NO OTHER....
I kinda feel foolish, should have just sent him a pm, like he said... im just a pm away, if I have any issues with any of his products. Its hard getting use to customer service like his. And im not use to dealing with guys like Steve O......Steve im truly sorry for not giving you a pm first.

Stubbs 06-16-2010 06:20 PM


Originally Posted by kaptain crash (Post 7551401)
Yes Steve ...does care....Got a pm on monday from him saying send that motor to him and he would fix it, even ....WAY past the 90 days given. Steve stands behind his product ....LIKE NO OTHER....
I kinda feel foolish, should have just sent him a pm, like he said... im just a pm away, if I have any issues with any of his products. Its hard getting use to customer service like his. And im not use to dealing with guys like Steve O......Steve im truly sorry for not giving you a pm first.

See, told ya so! ;) :D

I knew he's been supoer busy, but as soon as he got wind of your troubles, I had no doubt he'd be contacting you. You'll be hard pressed to find someone who stands behind both his products, and his customers, better than Steve.

kaptain crash 06-16-2010 07:16 PM


Originally Posted by Stubbs (Post 7551445)
See, told ya so! ;) :D

I knew he's been supoer busy, but as soon as he got wind of your troubles, I had no doubt he'd be contacting you. You'll be hard pressed to find someone who stands behind both his products, and his customers, better than Steve.

Thats the truth for sure, HE CANT BE BEAT.:D:nod:

merdith6 06-16-2010 11:30 PM

I second that
 

Originally Posted by Stubbs (Post 7551445)
See, told ya so! ;) :D

I knew he's been supoer busy, but as soon as he got wind of your troubles, I had no doubt he'd be contacting you. You'll be hard pressed to find someone who stands behind both his products, and his customers, better than Steve.

I feel like a fool, He asked for my number, called me on monday, and was the nicest guy I've met in a long time. Super cooool guy...He brings the oldschool vibe I remember when I was a kid at the hobby shop. I won't forget it either, I learned a valuable lesson, we never stop learning.....Thanks Steve.....

stu541 06-17-2010 11:16 AM

altitude change?
 
Anyone have experience in tuning the ss .21 in extreme altitude changes? I live at about 700ft above sea level and my race this weekend is gunna be probably close to 3600ft above sea level. Both my motors have been barely driven. Each are about tank #25-30. Went through the instructions on break in and then one race weekend. Any signs I should pay attention to besides the normal stuff?

thanks,

steve

Stubbs 06-17-2010 12:30 PM

You have to account for corrected air density. Running at those altitudes will be like me running at sea level during hot / humid conditions (lower levels of available oxygen in the air).

If you're noticing the engine sounding blubbery, it won't clear out unless you lean the heck out of it (and drive temps too high), and it starts to run better at about half tank when the temps come up, that's a good indication.

I ran into this same situation in the conditions I mentioned above. I worked with Steve O on how to correct it before my race this past weekend. The only way to make power and account for less available air, without changing fuel formulation, is to do two things. 1. pump more air into the engine (bigger restrictor), and 2. increase the compression ratio (remove a head shim).

I went from 2 shims to 1, and a 7mm restrictor to an 8mm. The difference in power was unbelievable. The engine ran much more freely, temps didn't climb above 230, and there was no difference in performance from the time I put it on the track until the time I finished my race. It ran fantastic right from the get-go. If you do both, immediately richen the HSN 3 hours from the prevous setting, before starting the engine. That should be very close to the same tune as before. Of course, then do a final tune using your preferred method.

I'm running 30%, 87T, plug, stock air filter. There were no signs of detonation or pinging....overall, VERY good results from making these changes.


Originally Posted by stu541 (Post 7554536)
Anyone have experience in tuning the ss .21 in extreme altitude changes? I live at about 700ft above sea level and my race this weekend is gunna be probably close to 3600ft above sea level. Both my motors have been barely driven. Each are about tank #25-30. Went through the instructions on break in and then one race weekend. Any signs I should pay attention to besides the normal stuff?

thanks,

steve


Brian Alderman 06-17-2010 12:32 PM

There you have it! I have never dealt with this situation and would have done the opposite since we always had to down size the jets in the carbs of atvs when they were going to a higher altitude.

PsycoB4 06-17-2010 12:33 PM


Originally Posted by merdith6 (Post 7552645)
I feel like a fool, He asked for my number, called me on monday, and was the nicest guy I've met in a long time. Super cooool guy...He brings the oldschool vibe I remember when I was a kid at the hobby shop. I won't forget it either, I learned a valuable lesson, we never stop learning.....Thanks Steve.....

Haha, I felt the same way for a minute when he called me. I got 101 Class for about 1hr. I didnt want to get off the phone, But wifey was calling me and was needing me. We spoke about everything, and all. It was awesome what he had to say and what he knew. My engine I love it!! Cannot wait to get it back on the track!!! I have to say for a 3-port this Engine is Super fast, Easy to tune, and gets 8+ mins on a tank.... you cannot beat this!!! I will be getting another for my basher buggy, and 1 more for a back up. :batman::batman::batman:


All times are GMT -7. It is currently 08:05 PM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.