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Old 04-06-2007, 05:39 PM   #31
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Very valid points Dan.
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Old 04-06-2007, 05:40 PM   #32
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Quote:
Originally Posted by DiscoDan
From what I can see... once the truck is assembled it would be a pretty major undertaking to get the diff's out for a diff fluid change.
Instead of building the diff/bulkhead parts like a typical 1/8 scale racer, they seem to have put the diffs inside what looks to me like a Revo inner diff housing.
I'll have to confirm it (by trying), but I think I'll be able to get the diffs out by removing 6 screws. I don't think it'll be too bad.
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Old 04-06-2007, 07:55 PM   #33
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1. Front and rear ends are assembled...

2. I like the fuel tank mounting... the stand offs are flexible plastic and they put a pad of foam on the bottom of the tank... with all the broken tanks on other brands of machines I saw from landing hard off the massive 38' quad at this year's Canadian Winter Nationals race, I think this feature might have helped them.

3. Here's the front and rear mounted on the chassis, with the fuel tank, and the spur/center diff assy installed. The brake/c.diff assembly seems well designed and sturdy enough.

4. The upper deck with servos mounted (I scrounged up some Hitec 925's). The receiver box has lots of room!

5. The upper deck mounted on the chassis

So far, the build has gone well. I can't really say anything either good or bad about the truck at this point. It looks OK.
Attached Thumbnails
HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-003.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-004.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-005.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-006.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-007.jpg  

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Old 04-06-2007, 08:02 PM   #34
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1. Engine is now mounted. I had to do a bit of work to make the ol' novarossi 528XSP fit. The bottom of the backplate hung down too far, so I had to sand it so that it was flush with the bottom of the crank case, and add a set of shims to the engine mount. If I were using an engine intended for a UMT, I probably wouldn't have had to do any of this. If the 528 works well in the Hellfire, I'll probably get the backplate kit for it and buy a starter box.

2. Here's what the inside of the receiver box looks like. I like the top cover mount for the receiver... if any moisture got in, the receiver would be safe because it's up high. Also, there's tons of room in this box!

3. Here's the truck with the wing and body mounts on.

4. The wing mount looks beefy. Also, I have to say that the shocks impressed me. They're designed to self bleed and are silky smooth! All you do is fill them up to the top with oil, put on the caps, and they self bleed as you screw them down, and seal when tight... Very nice!
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HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-008.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-009.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-010.jpg   HPI Hellfire SS Kit Build & Long Term Review-hellfire-build-photos-014.jpg  
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Old 04-06-2007, 08:18 PM   #35
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Well, I'm pretty much done building the truck. The only issue I had was that the screws given to mount the rear wing were too small ???... Hmmmmm.... so, I used some larger ones from my spares collection. The other small issue was that the numbering of a couple of the plastic parts in the manual were wrong (wrong identifier numbers).

All I need now are a flat pack receiver battery and a header/pipe set! Once I get these last few items looked after, I'll take the truck out for a spin and let you all know what my initial impressions of the truck are.

Please keep in mind that this is my first 1/8th scale real "race machine" build... so I have nothing to compare to. I have built a number of Savage SS kits as well as an RC10T4 and an RC18T.
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Old 04-06-2007, 08:49 PM   #36
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WOW
I want to see what you say but i think it is impressive.
Everything abut it screems race truck
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Old 04-07-2007, 04:44 AM   #37
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very nice

take a video when you run it and post it on youtube.com
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Old 04-07-2007, 09:23 AM   #38
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I like the 16.5 mm shocks
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Old 04-07-2007, 02:24 PM   #39
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Quote:
Originally Posted by T493
I like the 16.5 mm shocks
Yeah, they definitely impressed me! When I was building my Savage for the Nats races, I actually had a set of Hellfire shocks on order for it, but the guy I was trying to buy them off of ended up only having 2 of them... so I ended up with LST shocks... After playing with the Hellfire shocks, I wish I had done more searching to find a complete set.

Comparing the Hellfire to the CRT, I get the impression that the Hellfire might be a little more difficult to work on due to the Hellfire having an upper deck. As I start to run the truck at the track this summer and compare notes with the CRT and STR owners, I'll have more definite comments to make about how the Hellfire stacks up.
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Old 04-07-2007, 02:25 PM   #40
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Quote:
Originally Posted by Benduchi
very nice

take a video when you run it and post it on youtube.com
Will do!

Now to figure out a paint job for this thing... Hmmmmm... will have to check out some photos of what others have done and come up with something of my own.
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Old 04-07-2007, 02:32 PM   #41
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Quote:
Originally Posted by T493
I like that it has an included tuning guide
Many kits come with a tuning guide. I've read some of what Xray has put out, and it's very impressive. The Hellfire tuning guide is dummied down somewhat, but the basics are there. Also, it has a very good 2 page setup sheet that I'll have to photocopy and use. It allows for each and every adjustment on the truck to be noted accurately.

- Update - the manual does not include any instructions for roll center adjustment. I had to study up in the Xray truggy manual to figure this out.
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Old 04-07-2007, 02:34 PM   #42
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Make sure to stay away from the team Greg pink paint when you do the body!
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Old 04-07-2007, 05:31 PM   #43
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Quote:
Originally Posted by Perry
Make sure to stay away from the team Greg pink paint when you do the body!
Maby he wants a Pink Hellfire Consitering the name i would go red but with Gregg it is out of the Question

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Old 04-07-2007, 09:41 PM   #44
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Quote:
Originally Posted by T493
Maby he wants a Pink Hellfire Consitering the name i woulb go red but with Gregg it is out of the Question
Very funny guys... that pink body was an accident, and that same supposedly "Racing Red" paint made many more victims than just me by turning barbie pink after putting on the backing coat!
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Old 04-07-2007, 09:54 PM   #45
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Well, I took the Hellfire out for a spin tonight. I didn't take any video because I was alone, sorry, maybe next time...

Anyways, I put a Jammin JP-2 pipe and header on. And was running Sidewinder 20%Nitro 16%Oil blend. The Novarossi N528X ran well, and stayed fairly cool... so no problems with the engine. It doesn't seem to be too much engine for the truck either. The run time on a tank was quite good as well. I didn't have a stop watch with me, but it felt like at least a good 10 minutes.

The kit came with a 13t clutch bell... that's way too low geared for the 528... so I upped it to 15t. Unfortunately, I wasn't able to run it again as my receiver pack died, but I'll try again tomorrow and see how that works.

The brakes on this thing are very nice. They have a very linear feel to them, not grabby at all! I can slowly apply the brakes and they feather in a very linear manner, just like driving a real car. If I apply them all the way, I can just barely lock them up on the pavement using the Hitec 925 servo (107 oz in of torque at .08s transit time), so they should have lots of stopping power on the dirt. So far, so good!

I can't really test the handling of the truck just yet, I only have some dry pavement to drive the truck on at this time... still waiting for all the snow to melt. However, my initial impression (for what it's worth) is that this truck seems somewhat dosile in the handling department. If it handles this way on dirt, it should be easy to drive for a beginner truggy racer like me.

There was some concern amongst some of the more experienced racers at our local club that this truck might be twitchy due to the very rigid chassis... it doesn't seem to exhibit this kind of handling, at least not on pavement, anyways.
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HPI Hellfire SS Kit Build & Long Term Review-hellfire-after-first-run.jpg  
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