R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 04-20-2009, 08:55 PM   #1
Tech Rookie
 
Join Date: Apr 2009
Posts: 7
Default Hyper 8.5 Mach .21

Hi, i have a Hobao Hyper 8.5 with a mach 21 standard engine. Can anyone tell me what will have more power and/or better performance regarding a .21 mach hyper vs Novarossi 2001BF .21.
The hyper engine has been average, i'd like to stick with it (i have no idea why), but this is the second engine ive been through with minimal use (dodgey ebay bad luck with this engine anyhow). both have lost compression after about 5 litres both of 20% and its tuned perfectly.
them, and how i noticed the novarossi has short stroke 2.0 horsepower and revs to 30,000, where the hyper mach 21 has a claimed 2.7 horses and rev's to about 40,000. but they both have the same displacement. this seems to be one of novarossi's lower end engines, however im still interested in the comparison.

Does anyone have any other suggestions for a .21/.28 engines of similar cost ($100/250AUD) that offers the same value for money as the hyper 21.

I'm also looking at servos, any combination thats powerful for under $150 (both) throttle/steering

anyones help is much appreciated as i only recieve bias informationfrom local hoppy shops.

Last edited by Stressfactor; 04-20-2009 at 09:39 PM.
Stressfactor is offline   Reply With Quote
Old 04-20-2009, 09:00 PM   #2
Tech Fanatic
 
Join Date: Nov 2008
Posts: 777
Trader Rating: 6 (100%+)
Default

I havent tried either engine but I have heard great thing about them and got to see one run in a buggy a few weeks ago and it looked sweet!

Regarding servos, if you are saying 150 for each servo then get the jr 9100t for steering and jr9100 s for throttle. If you are saying 150 for both then i'd recommend the ace 1013 for throttle and 1015 for steering.
rgrassey@me.com is offline   Reply With Quote
Old 04-20-2009, 09:27 PM   #3
Tech Adept
 
Huckster's Avatar
 
Join Date: Jun 2008
Location: Where ever the Navy puts me
Posts: 189
Default

I used to have a Mach .21 with my hyper 8 and hated it, never got it hold a tune and went thru 3 pistons. But i have heard of some people that have had good ones, so you must be one of the lucky ones.

Novarossi do make good motors from what i have heard, but i have found that if you're after bang for buck have a look at the Go Engines range of motors.

http://www.go-engine.com/in-products...15P-P820SG.htm

http://www.rchobbyzone.net/front.asp...GOR215P-P820SG
__________________
~ Ryan Huckel ~
HotBodies D8/GoTech 21 - 5 port/Speckrum radio/JR Pro servos/Pro line wheels and rubber
HPI Micro RS4 - Brushless
Hyper 8 Pro, Associated RC10 1990 World's Car, Traxxas Rad2
~In need of somewhere to race~
Huckster is offline   Reply With Quote
Old 04-20-2009, 09:46 PM   #4
Tech Master
 
thenova70ss's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jun 2008
Location: Arkansas
Posts: 1,555
Trader Rating: 52 (100%+)
Default

I have had both and the Novarossi will out run that hyper 21 BAD i think that Ofna is wrong with the power they say the 21 makes. And that Novarossi will hold a tune all day and run for ever if you take care of it.
__________________
CHRIS CREWS
Pro Speed Racing Optima MX1 Buggy http://www.global-hobbies.com.my
Cold Fusion R/C Products Team Driver - www.coldfusionrcproducts.com
Rc Pro ProDucts Team Driver www.rcproproducts.com
Hobby Pro USA Team Driver www.vp-pro-usa.com
thenova70ss is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Hong Nor / Jammin Products And RC Fans Thread plazma Malaysian R/C Racers 1717 04-02-2013 01:07 AM
Turf City 1/8 Off Road Buggy / Truggy and EP Truggy Race, 16th Aug 2009. leng Singapore R/C Racers 76 10-08-2009 09:36 PM
RC equipments for Sale ijnek Malaysian R/C Racers 22836 09-09-2009 01:50 PM
R/C Stuff Selling Kenneth Tan Singapore R/C Racers 45728 09-09-2009 07:19 AM
2008 AARCMCC 1/8th IC Off Road National Titles.. MadRacer Australian Racing 45 04-30-2008 02:11 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -7. It is currently 10:28 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net