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RCU Forums (https://www.rcuniverse.com/forum/)
-   RC Truggy (https://www.rcuniverse.com/forum/rc-truggy-399/)
-   -   Official HPI Hellfire Thread (https://www.rcuniverse.com/forum/rc-truggy-399/3579916-official-hpi-hellfire-thread.html)

boo_saa 12-02-2008 08:31 AM
RE: Official HPI Hellfire Thread
 
Thanks man..

kozzney 01-03-2009 11:33 AM
RE: Official HPI Hellfire Thread
 
aight, having a little trouble here... i just got a hpi k5.9 engine for my hellfire, and i'm trying to take the carb off to switch it 180 degrees. i took that screw out of the lock pin, but i can't get the pin out therefore i can't get the carb off the crankcase. anybody have any tips about how to get that pin off? i don't know if i should push or pull it or twist it or what

thx

kozzney 01-03-2009 11:56 AM
RE: Official HPI Hellfire Thread
 
ok nvm... i'm dumb... i threaded the screw in the other side of the pin and then pulled and magic it came out

stussman 01-03-2009 08:45 PM
RE: Official HPI Hellfire Thread
 
Watch the mid range needle dosent loosen and fall out, very common problem with the k4.6.

KeithjV 01-04-2009 05:41 PM
RE: Official HPI Hellfire Thread
 
My hellfire is pretty much stock except for the diff fluid. What gearing are you guys running that you are able to get the truck to wheelie?
Thanks

stussman 01-04-2009 09:40 PM
RE: Official HPI Hellfire Thread
 
You wont wheelie like an MT with a truggy due to the 3 diffs but if you have extra thick centre diff oil it will help lift the front but you will lose turning ability.

KeithjV 01-04-2009 09:47 PM
RE: Official HPI Hellfire Thread
 
thanks stuss. I realize that with the center diff, but how these trucks wheelying in these videos? Like the brushless one? Is the center diff locked?

HRTKD 01-04-2009 09:54 PM
RE: Official HPI Hellfire Thread
 
My Hellfire doesn't wheelie much either, but my Savage X sure does. I got my Hellfire and Savage X used so I'm not real sure what the viscosities are in the differentials on either vehicle.

KeithjV 01-04-2009 09:59 PM
RE: Official HPI Hellfire Thread
 
There is no fluid in the diffs on the savage. I put thicker fluid in my hellfire diffs, but I think I still need to go a thicker to prevent some of the front wheel spin.
I have an LRP .28 in my Savage and it I get on it hard it will flip right over.

HRTKD 01-04-2009 10:09 PM
RE: Official HPI Hellfire Thread
 

ORIGINAL: KeithjV

There is no fluid in the diffs on the savage. I put thicker fluid in my hellfire diffs, but I think I still need to go a thicker to prevent some of the front wheel spin.
I have an LRP .28 in my Savage and it I get on it hard it will flip right over.
LOL! I guess you can tell how much maintenance I've done on the Savage. I figured the diffs on the Savage were set up the same as the Hellfire.

My kids think it's pretty cool that the Savage can do back wheelies (acceleration) and front wheelies (braking). But the Hellfire can corner soooo much better than the Savage.

KeithjV 01-04-2009 10:18 PM
RE: Official HPI Hellfire Thread
 
You can add fluid to the diffs on the savage but most guys dont seem to. And the way the diff case is made the bottom skid plate covers the gears so its not completely sealed. I believe the diff cups seal though.
The cornering is partly from the center diff but mostly from the wider stance and the lower center of gravity.

polaris_racing17 01-04-2009 10:23 PM
RE: Official HPI Hellfire Thread
 
hey . i am getting a hellfire ss and a hotbodies lightning. does anybody know if the losi mach 427 will fit in the trucks?

KeithjV 01-04-2009 10:35 PM
RE: Official HPI Hellfire Thread
 
Yes should fit no problem

k20_94_dc 01-05-2009 03:51 PM
RE: Official HPI Hellfire Thread
 
Hey guys I just picked up a used hellfire and was just wondering if there's any kind common proplems I should look for.

KeithjV 01-05-2009 06:21 PM
RE: Official HPI Hellfire Thread
 
I would check out the diffs to make sure all the gears are in good shape.

stussman 01-05-2009 07:36 PM
RE: Official HPI Hellfire Thread
 

ORIGINAL: k20_94_dc

Hey guys I just picked up a used hellfire and was just wondering if there's any kind common proplems I should look for.
Check yor diffs, hold the spur tight as you roll the truggy along,if the wheels dont roll yor diffs are probably ok, if the diffs click and the wheels roll they mite be worn.
If its the rtr the braces bend easy, the shock towers bend easy and the plastic shock caps break easily. The brake dics wear out quick too. The ss is alot tougher.

k20_94_dc 01-05-2009 07:59 PM
RE: Official HPI Hellfire Thread
 
thanks alot guys im sure ill be in here more often now haha

stussman 01-05-2009 09:08 PM
RE: Official HPI Hellfire Thread
 
I just took out my os 28 from my HF and put in my old lrp spec 3 28 for a change. Man, the lrp has some balls. Probably not the top end but just as much or more bottom end.

k20_94_dc 01-06-2009 10:57 AM
RE: Official HPI Hellfire Thread
 
What do I need to change a losi 427 to a pull start

k20_94_dc 01-06-2009 11:04 AM
RE: Official HPI Hellfire Thread
 
Sorry the motor is a bump start now and I want to just put a pull start on it

polaris_racing17 01-06-2009 11:38 AM
RE: Official HPI Hellfire Thread
 
hey u got a losi engine in the hellfire? i woul dhelp u but my hellfire is in the mail. i got a hellfire ss new i box for my race revo and to boot with the hellfire i got a hotbodies lighing stadium pro. i have over 2000 into my revo in parts. now i got what i allways wanted a hellfire.. let me know how it fits in the hellfire

supertib 01-06-2009 12:54 PM
RE: Official HPI Hellfire Thread
 

ORIGINAL: stussman

I just took out my os 28 from my HF and put in my old lrp spec 3 28 for a change. Man, the lrp has some balls. Probably not the top end but just as much or more bottom end.

WOW ! What pipe do you run on the OS 28 ?

KeithjV 01-06-2009 03:41 PM
RE: Official HPI Hellfire Thread
 
You are going to need a new back plate and I possibly a new crankshaft. The bump start crankshafts dont usually have the slot thats need to be spun by the pull start or roto start. I hope that made sense. You need to look at the manual for the losi engine and see what the crankshaft looks like.
Have you been using it with a starter box?

stussman 01-06-2009 04:13 PM
RE: Official HPI Hellfire Thread
 

ORIGINAL: supertib


ORIGINAL: stussman

I just took out my os 28 from my HF and put in my old lrp spec 3 28 for a change. Man, the lrp has some balls. Probably not the top end but just as much or more bottom end.
Running a tt2035 and short manifold. I think the short manifold takes a liitle grunt away from the os but it does improve the top.
LOL, i just remembered i had a 17 t cb on the os and only a 14 t cb on the lrp. That explains the bottom end difference.
But, i was still very impressed with the grunt of the lrp.


WOW ! What pipe do you run on the OS 28 ?

KeithjV 01-06-2009 10:15 PM
RE: Official HPI Hellfire Thread
 
stuss any video of the truck with the lrp in it?


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