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Old 12-20-2013, 08:39 PM   #1
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Default On-Road engines vs. Off-Road engines.

I'm looking into doing nitro 1/8 onroad and was wondering what the difference between onroad and off road engines.
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Old 12-20-2013, 10:03 PM   #2
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I'm looking into doing nitro 1/8 onroad and was wondering what the difference between onroad and off road engines.
port timing......usually better rods/pistons in the onroad motors....slugged cranks......PRICE
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Old 12-21-2013, 05:35 AM   #3
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The on-road engines tend to be higher revving and are designed with their power band higher up the rev' range. (Although I feel this is changing somewhat)
The off-road engines tend to have better low down power ..... their torque and power are lower in the rev' range and tends to be higher then their on-road counterparts.

This is just a personal outlook on your question though.....

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Old 12-21-2013, 08:36 AM   #4
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Off road engines tend to be built with lower fuel consumption in mind leading to comprises with overall power. The on road engines are build to run 5 minutes max and pushed for max power. A total generalisation but along with the previous comments it's all about right.
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Old 12-21-2013, 10:20 AM   #5
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On road = VERY FAST

Off Road = very slow
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Old 12-22-2013, 07:01 PM   #6
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Thanks guys! What is a cheap starting engine?
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Old 12-22-2013, 07:18 PM   #7
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Thanks guys! What is a cheap starting engine?
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Old 12-22-2013, 07:19 PM   #8
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Thanks guys! What's is a good cheap starting engine?
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Old 12-22-2013, 08:13 PM   #9
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rb speed 21 a-main around 200
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Old 12-23-2013, 02:34 AM   #10
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The Novarossi N21-5T is a good choice.
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Old 12-23-2013, 05:15 AM   #11
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rb speed 21 a-main around 200
The only problem with that one is aren't they very finicky to tune?
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Old 12-23-2013, 05:21 AM   #12
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The Novarossi N21-5T is a good choice.
See though that is an off road engine... Would it be able to hold the constant rpms?
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Old 12-23-2013, 08:06 AM   #13
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The N21-5T is an onroad engine!
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Old 12-23-2013, 08:51 AM   #14
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Quote:
Originally Posted by Brian C. View Post
I'm looking into doing nitro 1/8 onroad and was wondering what the difference between onroad and off road engines.
What car are you putting the engine in?? Did you mean '1/8th scale' or is a GT8 possibly your car of choice if 'just starting 1/8 on-road'????
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Old 12-23-2013, 02:57 PM   #15
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just for sharing as im using alpha lutz on previous race due to my reds m7wc i break conrod...i just change the head for on road and exactly its last choice as my spare engine i forget to bring ��but in the end just have to play safe on straight but in chicane its having great power.

so my point of view of both engine got their own power. if you race on small medium track with technical layout i just use my alpha lutz or club racer as i need torque but on big following track will go for my sonic ls or reds m7 ��
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