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Old 09-27-2007, 05:54 PM   #16
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so i guess bigger is not always better
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Old 09-27-2007, 06:46 PM   #17
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so i guess bigger is not always better
no bigger is not always better...the faster engines around are .21's...
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Old 09-27-2007, 06:53 PM   #18
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alright thanks for all the help, is there any other .21 motor besides the OFNA Hyper .21 8 port, that has a good amt of power for around the same price
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Old 09-27-2007, 06:57 PM   #19
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go techs are on sale at www.rc-toro.com
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Old 09-28-2007, 06:38 AM   #20
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In terms of sheer pricing, those Hyper 8 .21s (Race version w/o backplate) are tough to beat.

OFNA has a $50 rebuild program for those engines and the guys doing the builds are pretty good at it by all reports. I've read posts and talked to a few people that said the motors came back a little stronger after the rebuild.

They are reported to be a little finicky in terms of tuning them, but once tuned people have said they hold a decent tune for a while. You should get at least 5 gallons out of a Hyper. I've heard of people getting as much as 8 or more, but everyone I've talked to seems to agree that 5 is about average.

$50 for a complete rebuild and you really can't beat it. The replace whatever parts need replacing, If I remember correctly - even the crank... www.ofna.com

I've seen the Hypers run at the track and they are quick. Competitive type 'quick' in a good state of tune. You can win races with them...

If you have a little more money to spend, then look at Go-Tech's, Jammin'/Piccos...

Novarossi's are bulletproof for the most part, and you should get 10+ gallons out of one if you even remotely take decent care of it (The Honda of engines). They are definitely worth the money. I really think that the P5X series is probably one of the best bang for your buck motors out there, besides the Go-Techs and Jammin'/Piccos. It just lasts forever and does everything well with a really snappy bottom end. Very fuel efficient too.

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Old 09-12-2009, 06:55 PM   #21
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I have a Losi XXX-NT that had a dynamite .15 until it lost compression...
Until the shop I normally go to got something better in, I bought a Ofna .12s and it ran great and tuned excellent until I crashed the car very bad and the piston rod snapped from the force of the impact.

I'll just replace the piston rod for now because the engine ran great and had plenty of power for the car it was in.
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Old 09-12-2009, 07:54 PM   #22
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Well i had one of these motors when i bought one of the rtr street cars from ofna along time ago.

I can say a couple of things about this motor:

Its true that it does not tune all that well, but i will say that it lasted plenty long for me.

I broke the motor in the old school way (idle on the box all day etc) and the motor has been tossed from one person to another. I got out of rc for 8 months and when i came back i met the guy who had the motor that i broke in....still tight and ran great.

I have to say its a great motor for the price in my exp....your going to get a 1000 different opinions
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Old 09-12-2009, 09:25 PM   #23
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I have had great luck with force motor especially for how little they cost.
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Old 09-13-2009, 09:44 AM   #24
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I had a force 28 engine 5-6 yrs ago it made ok power but they are a cheap engine. I had about 2 gallons on it when the crank shaft broke. If you own a buggy you do not want a .28 engine unless you just want to bash the heck out of your rig. If you are looking for a engine that is in the $150 range buy the Novarossi n21bf, if around the $200 range buy a Werks b5 .21 or jammin JPX .21. These engines can be seen at Amain Hobbies.
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Old 01-04-2010, 07:31 PM   #25
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Talking Force .28

Man I luv mine. So much bang for the buck. It's throaty and it twist up fast. I have abused this engine, put it in several applications and its still running strong. Oh and reliable.
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Old 01-04-2010, 08:28 PM   #26
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Which force motors are you talking about. I had one of the old wons but the new force motor are really good motors.

If this is the motor you all are talking about you need to try it this is a bad a$$ motor.

http://www.nitrohouse.com/catalog/pr...ducts_id=21551

Its got great power and so far looks like it is going to run for a long time.

Read this there is a lot of good info.
http://www.rctech.net/forum/nitro-of...rce-21-jl.html
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Old 01-04-2010, 08:30 PM   #27
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I raced a force 28 it came in my kit and I loved it I have almost 3 gal thru it. That motor ran good and it was better when I changed to picco carb it was way better. That motor has a great powerband for oval racing. I need a head for mine or I would still race it. If any one has a head pm me I would like to practice or race my Force 28.
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Old 01-04-2010, 08:46 PM   #28
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Nitrohouse.com has the head button for the Force .28
http://www.nitrohouse.com/catalog/pr...ducts_id=13094
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Old 01-05-2010, 12:47 AM   #29
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Quote:
Originally Posted by smittyusmc View Post
Which force motors are you talking about. I had one of the old wons but the new force motor are really good motors.

If this is the motor you all are talking about you need to try it this is a bad a$$ motor.

http://www.nitrohouse.com/catalog/pr...ducts_id=21551

Its got great power and so far looks like it is going to run for a long time.

Read this there is a lot of good info.
http://www.rctech.net/forum/nitro-of...rce-21-jl.html
+1 on the .21 JL
sweet new force race engine!!
175 bucks, its a winner
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Old 01-05-2010, 08:16 PM   #30
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Quote:
Originally Posted by rageworks View Post
Nitrohouse.com has the head button for the Force .28
http://www.nitrohouse.com/catalog/pr...ducts_id=13094
$25 or $16 on ebay but this is a down payment on another motor but if someone had one of these motors that was junk and we could work a deal on a used head I will bring the force 28 back to life or I will get that new motor asap. thanks
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