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HPI R40 Nitro Car Forum

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Old 10-04-2006, 06:51 PM
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Originally Posted by rossb
I currently have the LW trans, the hollow shafts, and the steering bearings. My flat pack really will not fit? What kind of battery pack does the Hara chassis take? This could turn into a very expensive upgrade.


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Old 10-05-2006, 02:03 AM
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Originally Posted by rossb
I currently have the LW trans, the hollow shafts, and the steering bearings. My flat pack really will not fit? What kind of battery pack does the Hara chassis take? This could turn into a very expensive upgrade.
You could get by with just the tank and upper deck. Add the chassis and the rear shock tower and you will be really close. The rear shock tower is a good part to get either way. I've seen some on ebay for a bit cheaper lately.

fastharry, good job on the Nitro stock win in the Unoffical HPI challenge.
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Old 10-05-2006, 06:15 AM
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Originally Posted by Rapid Roy
You could get by with just the tank and upper deck. Add the chassis and the rear shock tower and you will be really close. The rear shock tower is a good part to get either way. I've seen some on ebay for a bit cheaper lately.

fastharry, good job on the Nitro stock win in the Unoffical HPI challenge.

thanks...but there were only a few guys there in that class,so I did what I always do....don't hit anything,stay off the boards,wait for them to break..works every time...

what I was really happy with was the nitro mod class,and the run whatcha brung OPEN electric pro class....
there were 3 heats of nitro mod....it was an open class(ANY chassis allowed)...there were only 5 r40's in the group....I missed the A by 3 seconds....my car flamed out at the start of the B,the pit guy couln't start it,and I missed 81 seconds...and still finished 7th....

electric pro was great....2 full mains.......I qualified 7th in the A,and finished 4th....I really enjoyed the 2 open classes...2 xrays finshed 1 and2,a pro 4 3rd,my pro 4 4th....

not bad for 52...
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Old 10-05-2006, 01:05 PM
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Im trying out some of the r40 setups that I've downloaded from web. The only thing that im not sure about is the bump stop and the rebound stop. Which one limits the upward and which one limits the downward travel of the arm.
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Old 10-05-2006, 02:07 PM
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Originally Posted by ProE
Im trying out some of the r40 setups that I've downloaded from web. The only thing that im not sure about is the bump stop and the rebound stop. Which one limits the upward and which one limits the downward travel of the arm.
I think the bump is the up travel and the rebound is the down travel. Not sure, just my .02. Check this out

I bought some parts earlier from Killer Hobbies and wanted to let everybody know about the savings. All bodies and replacement parts are on sell for the R40.

http://www.killerhobbies.com/
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Old 10-05-2006, 03:31 PM
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Bump stop is minimum ride height and rebound is droop.
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Old 10-05-2006, 04:18 PM
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I was looking at the Hara instructions posted by ProE and it seems as though the new deck also requires the aluminum steering servo mount and antenna holder. The Hara version does not have a receiver box nor does it have a battery box. Both the receiver and the battery appear to be exposed. I'm starting to have second thoughts about this upgrade.

Can someone please post pics of a completed Hara kit. I would like to see the receiver and battery areas.
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Old 10-05-2006, 04:55 PM
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Originally Posted by rossb
I was looking at the Hara instructions posted by ProE and it seems as though the new deck also requires the aluminum steering servo mount and antenna holder. The Hara version does not have a receiver box nor does it have a battery box. Both the receiver and the battery appear to be exposed. I'm starting to have second thoughts about this upgrade.

Can someone please post pics of a completed Hara kit. I would like to see the receiver and battery areas.
You should be able to use the stock servo mounts instead of the aluminum ones. Maybe somebody that has done the conversion can confirm this. As for the battery and receiver box, they arn't really needed. None of the "pro" kits have them. The battery goes where the receiver box used to be. There is a small CF plate you can strap the battery to and then bolt it to the upper deck. Most people just shoe goo the battery to the chassis though. The receiver fits under the top deck on the other side about where the steering servo used to be.
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Old 10-05-2006, 04:57 PM
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Oh, and just go and pick up any brand aluminum antena holder. You should be able to get one for under $5 easy. As long as its purple, who cares!
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Old 10-05-2006, 06:09 PM
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i just reused the stock antena holder when i converted my r40 over to the hara edition
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Old 10-05-2006, 07:52 PM
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The conversion moves the battery to the side of the chassis and brings the steering servo to the middle. This is the opposite of my current R40. I'm not sure how much that AAA hump pack weighs but I have to figure its heavier than the servo. That would be bad for handling.

I'd like to see a picture of the receiver and batter areas on the Hara kit. I am picturing a mess of wires, the receiver cup hides that on my ride.
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Old 10-05-2006, 08:07 PM
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It does work out when you see it in real life. Most servos are 40-60 grams and most receiver packs are 50-60 grams. Everything is more centred and lowered a bit.

The Hara edition does handle better, for some reason the mid corner "hestitation" that the stock car has goes away.
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Old 10-05-2006, 08:32 PM
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Originally Posted by rossb
The conversion moves the battery to the side of the chassis and brings the steering servo to the middle. This is the opposite of my current R40. I'm not sure how much that AAA hump pack weighs but I have to figure its heavier than the servo. That would be bad for handling.

I'd like to see a picture of the receiver and batter areas on the Hara kit. I am picturing a mess of wires, the receiver cup hides that on my ride.
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Old 10-05-2006, 09:59 PM
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Has anyone ever damaged the receiver in a crash? The Hara setup puts the Rx in harms way without a protector like the old kit had in front of the servo.
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Old 10-06-2006, 03:01 PM
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Some images of my car that will be taking part in its first national event tomorrow.
Attached Thumbnails HPI R40 Nitro Car Forum-dsc02567.jpg   HPI R40 Nitro Car Forum-dsc02562.jpg   HPI R40 Nitro Car Forum-dsc02564.jpg   HPI R40 Nitro Car Forum-dsc02563.jpg   HPI R40 Nitro Car Forum-dsc02565.jpg  

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