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My first XR8 Kit

Old 03-25-2007, 03:49 PM
  #26  
psiturbo
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Default RE: My first XR8 Kit

IS a tire truer really needed? The LHS has one on liquidation sale and I am thinking of buying it, its manual by the way.

I even have no idea how they work.
Old 03-25-2007, 04:01 PM
  #27  
D-Nicest
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Default RE: My first XR8 Kit

Only if your racing on a track will you benefit from it. But with the tire truer you'll also need the 1/8 scale adapter, and a file to round off the tires when done cutting. It's very simple to use, the adapter goes on the truers motor shaft, then you put on the wheel. Set the blade to the amount of milemeters you want to cut to, turn on the motor and twist the knob slowly so that the blade goes across the tire, then reverse it and go over the tire again. Do it very slowly and cut arund 2mm at a time to be safe.
Old 03-25-2007, 11:13 PM
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psiturbo
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Default RE: My first XR8 Kit

Ok, I hope everybody is ready for this...

I wish the car would always stay clean, but I did not buy it to become a shelf queen. It is very rare any of my cars go the shelf route.
All this happened in a relatively clean parking lot area. I had much better luck this time, the surface has plenty of grip and is not that dusty after all. There was a spot here and there, but next time I will bring a broom and dust pan to clean up some areas. Overall it was one of my best days so far, a few scuffs happened now and then since I am still getting use to the car and the new place I just found.



The O.S. .21 is no speed demon, its ideal for me. Easy to tune, very reliable; I would say its the easiest to tune from the many low budget engines I have had so far. Currently running 20% Traxxas, temperatures are in the 200 to 245 range depending on temp of the day and how hard I go WOT.



If you notice, the rear belt is a little bit scratched, a pebble got stock and shred just slightly the outer surface. I will buy one ot two next week. Also, in the rear it has some scratches right on the tail because I did not see a small piece of pebble when it was doing about 40mph and the car went airborne doing a wheelie (scary as hell), I let go of the throttle and gravity did its part. Once it hit ground a punched it and went straight like a rocket.





The new Power Racing tuned pipe is awesome, sounds super sweet and delivers a good punch overall somewhat in the midrange side.



About 1/4 to 1/2 an inch was cut from the wing, for me it was dragging to much and holding the car on top end. The way it is right now it has good downforce and still maintain consistent high speed passes.

I do like the car, the little things that have happened to it is because I have been careless and I am not running it on the best locations. Right now I am practicing on my power slide which is almost like drifiting so I can go faster on turns. I am thinking of making a hole on the front windshield of the car for ventilation, but dont know if it is recommended or not. this XR8 body does not expose the crown like the Lolas. I have had a blast so far, now comes the bad part, cleaning all the parking lot dust. The engine has after run oil so maybe I will clean it some day next week. About the tire truer I am thinking about it, I dont race because here is super lame the R/C environment. All the racing happens south of San Francisco, San Jose, and its about a 2 hour drive. I ask about the tire truer cause I did not want to spend all that cash if for me it was not that necessary.
Old 03-26-2007, 03:20 AM
  #29  
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Default RE: My first XR8 Kit

Nice! Sounds like a riot...I'm not a fan of touring style bodies on 1/8th racers myself, but I see your point about the added protection. You should DEFINITELY cut a large hole in the front and rear windows to aid ventilation, but that's going to make your dirt problem worse.

A tyre truer is a great purchase and they are expensive, so if you have the opportunity to get one cheap, go for it.

Powersliding...hmmm, well, I'm gonna have to be a grandfather here and kill your joy. Firstly, you will EAT rear tyres doing that, and it really isn't the fastest way around a corner (though I understand that you are not racing and therefore, you should do whatever gives you the most fun). However, I recommend you concentrate on developing your skills under traction. The main advantage of these cars is the extreme traction they provide, especially with a racing body on them.

Like I say though, fun is the important thing, and it sounds like you're having plenty!
Old 03-26-2007, 05:48 AM
  #30  
martsrc
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Default RE: My first XR8 Kit

Yes, these are very nice cars. I actually have a spare, brand new, assembled rolling chassis that I was keeping as a back up just in case but my car has been dead reliable breakage wise. If anybody is interested just pm me. Also, a complete runner might be available from a friend as well.
Old 03-26-2007, 01:11 PM
  #31  
trackman
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Default RE: My first XR8 Kit

psi i had the same problem with the rear belt, pebbles getting caught up and shredded my belt. i took
that back piece off and dremeled it out some to allow the pebbles to pass thru freely. as for motors i
found a cheap onroad motor at hobby people. for a 133.00 i figured i would try it. the power and speed
surprised me for the cost. a friend is running the mega motor and for the most part my cheapo motor is
running with him. im just bashing, dont want to break the bank
Old 03-26-2007, 05:22 PM
  #32  
ProRCRacer88
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Default RE: My first XR8 Kit

PSI, you have to have a near perfect surface to run those kinds of cars on or you will be going through belts and gears left and right. Looks lik eyou ran the car hard and had alot of fun with it.
Old 03-27-2007, 03:27 PM
  #33  
martsrc
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Default RE: My first XR8 Kit

Here's my backup roller (new):
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Old 03-27-2007, 05:37 PM
  #34  
Saboteur10573
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Default RE: My first XR8 Kit

The good thing about the PRP is that you can buy two for the price of a regular 8th onroad kit so you'd be set on parts. With some tuning you can make em run with the rest of the pack. Slap a nice motor in there, exhaust, servos, paint the body n go out to have some fun!
Old 03-29-2007, 09:04 PM
  #35  
Harvz
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Default RE: My first XR8 Kit

I want to get one. Where can you get a good deal online and specialy the parts for it?
Old 03-31-2007, 08:01 AM
  #36  
trackman
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Default RE: My first XR8 Kit

larrys performance rc
Old 04-10-2007, 02:35 AM
  #37  
psiturbo
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Default RE: My first XR8 Kit

The rear belt cracked from a small pebble. I got to dremmel the back so it does not happen anymore. Today I received the new belt from Larrys and by the way ordered spare plastic gears, side and front belt, centax clutch shoe etc.

The Porsche body resulted to be a bummer, they did not have it in stock.
Old 04-10-2007, 05:21 AM
  #38  
Igotntc3andrevo
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Default RE: My first XR8 Kit

aww man that sucks. im sure the car is workin out for you well tho right. i hope i can get my hands on the serpent 950 this summer for cheap or else i will snatch up the xr8 for sure.
Old 04-10-2007, 07:03 AM
  #39  
psiturbo
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Default RE: My first XR8 Kit

The car is a blast for sure. I am not sales person for PRP or anything. I am straight honest, it a descent kit to play with. The sound of the humble OS .21 is exhilarating. I dont know why, but the sound is not the same as in a buggy or a truck.

Usually most nitro powered engines have the growling rattling sound, but with the XR8 the pitch tone is sweet. Maybe it is of the power to weight ratio, or how belts resistance react compared to shaft driven setups.


At low rpms it has the normal pocket bike can sound, but once I go open throttle the parking lot is mine and it does make the F1 sound.
Old 04-10-2007, 12:42 PM
  #40  
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Default RE: My first XR8 Kit

NICE
Old 04-10-2007, 09:45 PM
  #41  
Saboteur10573
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Default RE: My first XR8 Kit

PSI- That's why 8th onroads are called the F1 of RC - they sound like the real thing! It's just the exhaust system and high revving of the .21 that makes the noise really.
Old 04-12-2007, 10:01 PM
  #42  
psiturbo
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Default RE: My first XR8 Kit

Here is a video clip

[link=http://s93.photobucket.com/albums/l70/psiturbo/XR8/?action=view¤t=XR8clip001.flv]XR8 clip Photobucket[/link]

You know its not the best place to record, but thats for now. Its in front of my house running on regular neighborhood asphalt. The engine as you know its the O.S. 21 RG, great for bashing, very consistent on temperatures.

If you notice there is a big manhole and a small steel plate right beside it, about 2 or 3 divisional reflectors and almost at the end two big square patches froma rescent water pipe construction. I have to be very critical on not touching those areas or the XR8 goes berzerk.

In case it does not work from photobucket, here is the same video on YouTube.

[link=http://www.youtube.com/watch?v=A5Zj4ruBCoU]XR8 clip YouTube[/link]


And here is part II from the other side of the street... Its taken with a digital camera on Video mode.

[link=http://www.youtube.com/watch?v=LA3moP3uk9M]XR8 clip YouTube PART II[/link]
Old 04-13-2007, 09:08 PM
  #43  
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Default RE: My first XR8 Kit

Lookin good!
Old 04-15-2007, 12:24 AM
  #44  
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Default RE: My first XR8 Kit

I bought an XR-80 RTR about 2 years ago. The first thing I did was build a fiberglass Mach 5 body for it. The car is FAST and bullet proof. I upgraded the radio and that was it. This kit is the best RTR for the buck in RC. Between the noise, the SPEED and the Mach 5 body I sometimes spend more time talking about the car with interested onlookers than actually driving it. Can't go wrong with a Power Racing product.
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Old 04-15-2007, 04:27 AM
  #45  
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Default RE: My first XR8 Kit

one word an thats original
Old 05-05-2007, 01:19 PM
  #46  
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Default RE: My first XR8 Kit

[link=http://www.youtube.com/watch?v=HsFXO0qCbgs]Another XR8 video clip bashing[/link]

Ok, this time I took a clip of much longer time.

I have to stop wasting money on engines and cars and buy myself a good video camera.
Old 05-05-2007, 08:50 PM
  #47  
Harvz
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Default RE: My first XR8 Kit


ORIGINAL: psiturbo

[link=http://www.youtube.com/watch?v=HsFXO0qCbgs]Another XR8 video clip bashing[/link]

Ok, this time I took a clip of much longer time.

I have to stop wasting money on engines and cars and buy myself a good video camera.
Is it the new engine you're running on the video?

Nice vid......make more with twist and turn.

Old 05-05-2007, 10:16 PM
  #48  
psiturbo
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Default RE: My first XR8 Kit

Yeah I know I need to make one with more high speed tight turns and wide sweeps at full throttle, plus take more video clips with a real camera.

I will try to take it to a clean parking lot. I am no video freak and need to practice on video editing.

That is the regular bashing engine (O.S. .21 RG(P). The engine runs strong all the time, of course if it goes back to back many tanks it tends to lower its performance just a tiny bit. I am just finishing its first gallon of 20% Traxxas fuel. Just today I did a centax clutch cleaning and some minor shim adjustments.

Also today I changed to rear Serpent 4 way adjustable shocks with orange springs. Cleaned up the 2-speed transmission, some minor tweaking on the front sway bar and suspension end points.

Thank you for the reply, I concur on your video feedback and will work on it.

Old 01-06-2021, 06:07 AM
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Default Need help on the front belt

Originally Posted by psiturbo View Post
Went to the LHS and came back with a few goodies.

Attachment 2239694

I am at the assembly line at the moment. Somewhat difficult to install the wheel retainers with the compressed spring.

Lets see how it goes. I have several single and dual chamber pipes and I am not sure if go with the LRP .28 or the O.S. .21RG.

The hobby shop gave a good deal for the kit; $355.00.
mine broken and lost..I ordered serpent 977 988 and all of them fit but the front didn't fit what size is it or can you give me the number on the belt need help

Last edited by Kode177; 01-06-2021 at 06:11 AM.

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