R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 06-04-2008, 12:49 AM   #1
Tech Adept
 
NEMESIS44's Avatar
 
Join Date: Apr 2008
Location: Meridian,Ms.
Posts: 249
Trader Rating: 8 (100%+)
Send a message via AIM to NEMESIS44
Default 4 Horsepower Engine under $200???

I recently had a racing buddy ask me why I paid close to $300 for my OS 28XZ when the same LHS I bought it from had an engine that supposedly cranks out 4hp for a little under $200 or close to $200. He couldn't remember the name. Is there an engine that could produce that power without a hefty price tag or did my friend get the numbers mixed up?
__________________
Losi 8ight 2.0,Werks B6, Spektrum, Savox HVs, AKA
Loving me some FRC!
NEMESIS44 is offline   Reply With Quote
Old 06-04-2008, 01:24 AM   #2
Tech Adept
 
maximugen's Avatar
 
Join Date: Jan 2007
Location: Toowoomba Queensland AUS!
Posts: 118
Send a message via MSN to maximugen
Default

there isnt a single car motor to my knowledge that is capable of producing 4 horsepower. It depends on where the power is recorded from, but most modern day dyno's used by engine modder's and X-Treme RC magazing measure the horsepower direct from the motor unlike most real car dyno's which operate from the front or rear wheels... or both. Most good engines put out 1.4-1.8hp on an rc dyno and the manufacturers claims are far more than this...
__________________
Mugen MBX5r - N/R 367 / Sirio bx STi
Mugen MST1 - JP RS12
Losi JRXSR- LRP SPX and Speed Passion 17.5R
HPI Savage - N/R 528
Trex 250
maximugen is offline   Reply With Quote
Old 06-04-2008, 01:36 AM   #3
Tech Adept
 
NEMESIS44's Avatar
 
Join Date: Apr 2008
Location: Meridian,Ms.
Posts: 249
Trader Rating: 8 (100%+)
Send a message via AIM to NEMESIS44
Default

Quote:
Originally Posted by maximugen View Post
there isnt a single car motor to my knowledge that is capable of producing 4 horsepower. It depends on where the power is recorded from, but most modern day dyno's used by engine modder's and X-Treme RC magazing measure the horsepower direct from the motor unlike most real car dyno's which operate from the front or rear wheels... or both. Most good engines put out 1.4-1.8hp on an rc dyno and the manufacturers claims are far more than this...
1.4-1.8 straight hp or bhp?
__________________
Losi 8ight 2.0,Werks B6, Spektrum, Savox HVs, AKA
Loving me some FRC!
NEMESIS44 is offline   Reply With Quote
Old 06-04-2008, 02:34 AM   #4
Tech Adept
 
maximugen's Avatar
 
Join Date: Jan 2007
Location: Toowoomba Queensland AUS!
Posts: 118
Send a message via MSN to maximugen
Default

umm im not too sure buddy, but a peak power output doesnt say everything about an engine. An engine might only peak at say 1.4hp and another may peak at 1.8hp, but engine A may have an average higher horsepower rating... meaning it is more useful on a track
__________________
Mugen MBX5r - N/R 367 / Sirio bx STi
Mugen MST1 - JP RS12
Losi JRXSR- LRP SPX and Speed Passion 17.5R
HPI Savage - N/R 528
Trex 250
maximugen is offline   Reply With Quote
Old 06-04-2008, 03:23 AM   #5
Tech Elite
 
allan42r's Avatar
 
Join Date: Jun 2008
Location: OSWEGO IL.
Posts: 2,602
Default

if your drag racing,then worry about numbers. for offroad a smooth motor with some top end is easy to drive.you dont need the fastest mod motor money can buy,if your just spinning the tires the novice with the little vg os motor will spank ya.
__________________
Pinky kisses better than mason's mom
allan42r is offline   Reply With Quote
Old 06-04-2008, 06:13 AM   #6
Tech Adept
 
honda_stuntboy's Avatar
 
Join Date: Jan 2008
Location: Fruitport, MI
Posts: 210
Trader Rating: 30 (100%+)
Default

Just to add to the conversation, the only cheap .28 that I know of is the LRP. Runs around $169. Been told they have weak rods in them. Don't know that much about the HP thing. Just a few more cents.
__________________
Check out my website at www.sumo-racing.com, like us on Facebook, or follow us on Twitter. Thanks, Terry.
honda_stuntboy is offline   Reply With Quote
Old 06-04-2008, 07:11 AM   #7
Tech Master
 
losi 8t's Avatar
 
Join Date: May 2008
Location: King, NC
Posts: 1,736
Trader Rating: 13 (89%+)
Default

good luck!~

Last edited by losi 8t; 06-04-2008 at 08:47 AM.
losi 8t is offline   Reply With Quote
Old 06-04-2008, 08:22 AM   #8
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

Quote:
Originally Posted by losi 8t View Post
the dynamite .28 platinum sg racing truggy motor...has a claim of 3.8hp...im runnin it in my 8T and it HALLS!!!! it gets me around the track ina hurry. maybe alot of tire spin....but im still TQ'in

o and its no more then 200 at my LHS.
Are you lying to us ?

In this thread you tell us that you already owned dynamite .28, and have TQ with it.

In another thread, you asked this question ??

Quote:
Originally Posted by losi 8t View Post
let me know wat u think about this motor? i really need to know if it would be a good motor to go with in my 8T.
give me some idea's guy'z
Do you really have the engine in your 8T ?? ..... sorry, I don't see the two threads you posted are fit.
__________________
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus
asw7576 is offline   Reply With Quote
Old 06-04-2008, 09:46 AM   #9
Tech Elite
 
DOMIT's Avatar
 
Join Date: Oct 2007
Location: Fort Worth, Texas, USA, North America, Earth, Solar System, Milky Way Galaxy, Universe
Posts: 4,034
Trader Rating: 1 (100%+)
Send a message via MSN to DOMIT Send a message via Yahoo to DOMIT
Default

Quote:
Originally Posted by allan42r View Post
if your drag racing,then worry about numbers. for offroad a smooth motor with some top end is easy to drive.you dont need the fastest mod motor money can buy,if your just spinning the tires the novice with the little vg os motor will spank ya.
I can vouch for this... I have the Werks B7 Pro and I can still manage to BQ most of the time!
__________________
Brad "DOMIT" Smith - I'm not fast, but at least I wreck a lot.
Unsponsored, but I use/recommend: XRay XB9, Alpha A852, Dynamite 053, Airtronics M11, Hitec 5955TG & 7955TG, ABEC 35 clutch and chassis bearings, PTRCRacing shock and diff fluids, Ready Rollers ceramic engine bearings. ** Team Terribles Region 9 coordinator. ** JOIN TEAM TERRIBLES! All racers welcome! PM me for details.
DOMIT is offline   Reply With Quote
Old 06-04-2008, 12:36 PM   #10
Tech Addict
 
German Muscle's Avatar
 
Join Date: May 2006
Posts: 557
Trader Rating: 8 (100%+)
Default

as for an engine that makes 4 ACTUAL HP.
http://www.horizonhobby.com/Products...rodID=ZENE23RC

Is there a nitro engine? No not yet.

The engines witht he most power right now are the Novarossi N528XR, Picco P3 .28T Factory Team Turbo, and the O.S. Max .28XZ They are 2HP engines with a few doing a little bit over 2 peak HP.

When your looking at numbers from a X-Dyno then what you need to look at is peak numbers. Then you need to see how long it holds its peak numbers or close to it. You want a broad power curve. You want the one with the most area under the curve.

The powerband for off road is bottom end. You need bottom end for off road racing along with mid range and top end. Most any engine has decent bottom end as they are designed for it but you need to look at the mid range and top end. If you can find an engine with good bottom end and mid range but doesnt drop off up top youll have a great engine. The VZB Vspec is like this.

There are a handful of on road .21s that do well over 2HP but they are diff engines.
German Muscle is offline   Reply With Quote
Old 06-04-2008, 02:51 PM   #11
Tech Initiate
 
Join Date: Apr 2008
Location: chicago
Posts: 31
Send a message via AIM to killer22
Default

my car got 2 hp nitro raze
__________________
IAN DRRENNAN, recoil, tc3, nitro truggy,pro pulse buggy, nitro raze.
killer22 is offline   Reply With Quote
Old 06-04-2008, 03:09 PM   #12
Tech Master
 
sharkman's Avatar
 
Join Date: Mar 2003
Location: Maine
Posts: 1,058
Trader Rating: 17 (100%+)
Default

dynamite platinum 28 is nothing more then an overpriced lrp spec 2 or xtm 457
Get yourself a lrp spec 3 and you will have more power then you know what to do with for about $170. Durability is very good as well.
__________________
cumberland rc racers

8ight B 2.0 brushless
tekin rx8 1550kv
sharkman is offline   Reply With Quote
Old 06-04-2008, 03:27 PM   #13
Tech Addict
 
Vigilante212's Avatar
 
Join Date: Nov 2006
Location: Menasha WI
Posts: 747
Trader Rating: 7 (100%+)
Default

Ive heard of drag moded picco's making 3hp, but they go through clutche shoes like once a run. All that power is just stupid. Any good race .21 can get you around the track in a hurry.
__________________
Mod 13.5 Associated B5M Lite
Stock 17.5 Associated B5M
Vigilante212 is offline   Reply With Quote
Old 06-04-2008, 04:39 PM   #14
Tech Adept
 
NEMESIS44's Avatar
 
Join Date: Apr 2008
Location: Meridian,Ms.
Posts: 249
Trader Rating: 8 (100%+)
Send a message via AIM to NEMESIS44
Default

I have been building racing engines for go-karts for about 14 years and have been using a dyno the entire time so I understand the concept of useable power, peak horsepower, broad powerbands etc etc...

I was just trying to answer my friends question. Obvoiusly, he has some numbers mixed up somewhere.
__________________
Losi 8ight 2.0,Werks B6, Spektrum, Savox HVs, AKA
Loving me some FRC!
NEMESIS44 is offline   Reply With Quote
Old 06-04-2008, 05:30 PM   #15
Tech Regular
 
Join Date: Jul 2007
Posts: 385
Default

In the world of RC horsepower #'s are useles! There is no universal way used by all companies to acuratly get a reading, there is way to many variables, including basic things like tune and Exhaust pipe. Because of this manufactures can easily lie about #'s, if you look around you will see a wide range of numbers that dont make sense when you compare it to the actual engine. Basicialy when shopping for an RC car motor do not even bother to think about the HP rating, chances are it is wrong.
Nitro syco is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Horsepower KJT4 Nitro Off-Road 8 06-17-2008 09:08 PM
Too Much Horsepower? XNXIXTXRXOX Nitro On-Road 19 07-10-2007 11:34 AM
Monster Horsepower pro set up BlueStreak362 Electric On-Road 0 02-20-2006 05:37 PM
Trinity Speedworks horsepower 350 Thumper Electric Off-Road 1 01-13-2006 10:47 AM
Trinity Monster Horsepower ilumina Australian Racing 2 11-07-2004 11:40 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 01:33 AM.


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