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HPI R40 Nitro Car Forum

Old 08-30-2006, 10:09 PM
  #10756  
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Originally Posted by nitrodude
I just got one of these and was wondering, whats a good batterie pack for this car? I got some 1000mah AAAs at Frys and I will build my own pack. Will a hump pack fit the batterie tray, or is it too tall?
Yes it will fit. Just make sure you use the 2/3 configuration. The original R40 may need a bit of modification to the battery box, but the 2005 Hara edition requires the AAA pack.
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Old 08-30-2006, 10:15 PM
  #10757  
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I have a R40 Japanese Edition, I think its a 2004.
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Old 08-30-2006, 10:20 PM
  #10758  
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Originally Posted by nitrodude
I have a R40 Japanese Edition, I think its a 2004.

You might be able to shoe horn that pack into the battery box, but its would help lighten up your car if you did the cutaway battery box mod. Try searching this thread for battery box, there was a step by step description with pictures way back.
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Old 08-30-2006, 10:26 PM
  #10759  
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I will search, thanks.
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Old 08-30-2006, 10:49 PM
  #10760  
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Originally Posted by nitrodude
Also, I have been reading this tread on and off since it was started. I noticed how most of you get a Mugen clutch and I was wondering whats wrong with the stock one?
The stock clutch doesn't grab as hard or consistantly as the mugen unit. You might need to do a little modification to get the gears to mesh though. I still use the stock clutch and for me, its good enough. I race mostly parking lot and usually race sportsman class to finish in the middle of the pack somewhere.
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Old 08-30-2006, 10:58 PM
  #10761  
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This is the cleanest way to do the battery box mod. The link to snapfish for the pictures doesn't work anymore so no pictures.

Originally Posted by treky11
I did something like Fastharry.

I removed the box altogether. I am running the trinity pack light weight pack, sho gooed directly to the battery plate on the chassis. I slid it forward a bit to clear the back of the gas tank. I took two screws/nuts and use them to hold the battery plate to the chassis.

It gives you a lot more room to run the wires to the rx box and makes it easier to keep them clear of the steering servo. I used a couple of zip ties to keep the wires neat.

I have a switch with a charge lead so I can charge no problem. If I need to get to the battery I can pop the tank easily (great feature of the r40) and have access to the battery or the nuts to remove the battery plate.

If I have to change the battery the sho goo can easily be removed to seperate the battery plate and the rx pack.

I'll try to post some pics in a day or so.
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Old 09-02-2006, 08:50 AM
  #10762  
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Thanks Roy.

Whats a good online shop to buy from R40 parts from?
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Old 09-02-2006, 09:09 AM
  #10763  
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here is a couple online shops for the R40:

http://www.ehobbies.com/
http://www.rcmart.com/catalog/defaul...th=595_737_490
http://www2.towerhobbies.com/cgi-bin...=++&search3=Go
http://www.teamhpi.co.uk/
http://www.stormerhobbies.com/cgi-bi...umb=on&smode=0
http://www.horizonhobby.com/Search/D...hpi+r40&CatId=

oops, its more than a couple
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Old 09-02-2006, 11:58 AM
  #10764  
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does any one have a link or a pdf file for the instruction book for the hara edition. i cant find it on the hpi web site
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Old 09-02-2006, 01:36 PM
  #10765  
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thisisagame24,

If you bought the hara edition, a seperate manual with the upgrades should be in your box. You should have a black manual(standard) and a White one which shows all the hara upgrades.

If you dont have it, let me konw and I will scan it and upload it to the forum.
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Old 09-02-2006, 03:49 PM
  #10766  
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i have the original R40. no mention of the hara upgrades at all and i just bought the upgrades. that would be great if you could do that. you can email them to me if it will be easier for you. [email protected]
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Old 09-02-2006, 07:57 PM
  #10767  
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Hi guys,

I ran my R40 for the first time on a track layout today (I've been just doing speed passes in front of my house for a while). I was quite unhappy with the handling.

1. Whenever I would turn on OR off power, the rear end would just come around and I would do a semi-donut/360.

2. Car seems very twitchy and sensitive when compared to my 1/10 Electric T/C. What should I adjust on the radio to correct this?
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Old 09-02-2006, 09:04 PM
  #10768  
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Originally Posted by DOMOisCOOL
Hi guys,

I ran my R40 for the first time on a track layout today (I've been just doing speed passes in front of my house for a while). I was quite unhappy with the handling.

1. Whenever I would turn on OR off power, the rear end would just come around and I would do a semi-donut/360.

2. Car seems very twitchy and sensitive when compared to my 1/10 Electric T/C. What should I adjust on the radio to correct this?

I would be looking at car set up....not a radio band aid...
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Old 09-02-2006, 11:16 PM
  #10769  
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Here is the Hara manual.
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Old 09-02-2006, 11:18 PM
  #10770  
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Wooohooo! Just got a Hara editon kit on ebay for 259. Can't wait to get it and build it.
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