RE: Official HPI Hellfire Thread
 

just got the kit and the build will commence on wed...I took vacation time to build it, now thats what I call being into the hobby!!

RE: Official HPI Hellfire Thread
 

Hey guys, I am gettign a Hellfire tommrow with a spektrum installed. Any tips with it?

RE: Official HPI Hellfire Thread
 

pics of my new hellfire ss

RE: Official HPI Hellfire Thread
 

It's finally here!! I can't wait to get started......

RE: Official HPI Hellfire Thread
 

I have the truck and think it's a lot better then some people give it credit for. The bean counters at HPI tried to screw it up though and there are some anoying problems. The scews that come with it are junk very soft and the heads strip easy even with good tools. The rubber orings in the diffs are too hard and don't seal very well and the metal gascuts for the diffs leak like sieves. I think if anyone building an SS replaces these items during the build they'll havea very nice truggy.

RE: Official HPI Hellfire Thread
 

what o-rings and metal gasket would you replace it with ?

RE: Official HPI Hellfire Thread
 

I agree I repaced them with (diff gaskets) koyosho paper gaskets and koyosho orings, as for the screws I have to order a hd screw set--any sugestions?

Damageincorperated

Good luck on the build, when you get to the shock build use needle nose pliers with heat shrink tube shrunk onto the tips to hold the shock shaft in place while installing the ball ends, so they will not mar/scratch the shaft and cause it to damage the internal o-rings and leak later (much better than useing tape like the instructions say)

RE: Official HPI Hellfire Thread
 

there are flats on the shaft to let you use a wrench to hold the shaft.

RE: Official HPI Hellfire Thread
 

Yes there is but be really carefull not to scratch the finish it could cause a leak and o-ring failure later on.

RE: Official HPI Hellfire Thread
 

I used the ofna diff gaskets haven't found any new orings yet. I think tonys scews makes a complete set of screws for the hellfire haven't heard of anyone else.

RE: Official HPI Hellfire Thread
 

I looked up diff gaskets and o rings are these the one you are talking about?

a-main hobbies part # KYOIF30-1 and KY00RG06

RE: Official HPI Hellfire Thread
 

Scratch that they where mugen seiki diff gaskets part # c0257 (just looked at the old package)

The o-rings where koyosho and I don't have the package so I can't give the part # got them from a friend.

RE: Official HPI Hellfire Thread
 

Thanks for the tip jcam.

RE: Official HPI Hellfire Thread
 

that is the right part number on the diff rings..... KY00RG06 ,..... never had a leak in over a year now

RE: Official HPI Hellfire Thread
 

That baby looks pretty sharp! Except you stole my color!:D j/k. I was thinking about going orange too.

RE: Official HPI Hellfire Thread
 

Thanks man!
Actually it is flourescent orange with a heavy backing (fade to rear) of metalic red then backed with indy silver to give it a deep orange/red metalic flake in front and a bright orange matalic in the rear, with metalic red faded into flourescent yellow flames, looks alot better in person with better light.
I messed up on the front window though...thats what you get with spray cans and only the 4th body I've ever painted.

RE: Official HPI Hellfire Thread
 

blew up the rear diff (spider gears) today while running about a half gallon at the track. I should have took it easy and broke in the gears, but then again it seems my mesh was off a little anyways.

Any suggestions on a hardened gear setup? Koyosho? Hot Bodies? Mugen? Has anyone tried them with sucess?

RE: Official HPI Hellfire Thread
 

I'm breaking in an axial 32 in my hellfire and have been unable to get it to idle slow enough as to not engage the clutch, I took it to my lhs for help and they got it idling a lot slower then I was able, but the clutch still engages, the guy who helped me said to get stronger clutch springs, can anyone recommend a set for me? They had a set of XTM springs there, the guy said they were the strongest springs anyone makes, should I get these?

RE: Official HPI Hellfire Thread
 

I would try to reset the carb opening to @1mm, and check the 3rd needle on the same side as the high speed needle (right below it in the houseing) and see if it is flush. Check for air leaks at back plate and carb--needles and base of brass fitting on the high speed needle. That is where I found a large air leak on my axial 28

RE: Official HPI Hellfire Thread
 

The carb is set at 1mm. When you say 3rd needle do you mean the mid-range needle? If so then that is completely flush, How do I check for air leaks? Do I just start it an put a finger by the back plate and carb?

RE: Official HPI Hellfire Thread
 

Get a can of WD40 and spray a base of carb and back plate carb needles. If engine rev's higher than that would mean that there is an engine leak... Test each place seperately.( Motor must be running obvioulsly)

RE: Official HPI Hellfire Thread
 

I'm not really comfortable spraying wd-40 on my brand new r/c, besides I don't think I have any at the moment, I found another method online (http://www.*********.org/engine-tuning.htm) I'll try this for now, and see if I can find any leaks.

RE: Official HPI Hellfire Thread
 

good luck! Did you seal the motor with high temp rtv sealent?

RE: Official HPI Hellfire Thread
 

BretD read this http://www.madmanluke.co.uk/DB2DAAEB...AC3AEE24C.html

RE: Official HPI Hellfire Thread
 

here are the measurements for the o-rings, as long as they meet these specs you can use them....6x9.5x2mm