Official HPI Hellfire Thread
04-16-2008 | 09:45 AM
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From: giesbeek, NETHERLANDS
RE: Official HPI Hellfire Thread
Hi all,
Again: Read this to remove slop on the steering section!!!!!!!!!!!!!!!
To get rid off any slop in the steering section first you have to do:
- Important!! CA between the rod end (86144) and the bal (85230), keep moving until the CA is dry! (also all other bal/rod end on the HF)
- Very Important!! There is a lot of slop on the steering Bushing (86508) and the steering arm 85507 2/4, fill that up!!!! (tighten the screw alone wil not do the job) The steering plate 87531 itself is OK
- tighten the servo saver nut (i use a high Torque Digital Servo: DS1015 from Ace r/c)
- Shim''s between Front Spindle Carrier 85506 and M4 Head Screw
- Shim''s behind Hex Hub Adapter 86387
This wil take most of the slop away!!
By the way: Don''t sel, every car has some flaw !!!!!!!!!!!!!!!!!!!!!!!!! Just enjoy the ride !!!!!!!!!!!!!!!!
Roy
Again: Read this to remove slop on the steering section!!!!!!!!!!!!!!!
To get rid off any slop in the steering section first you have to do:
- Important!! CA between the rod end (86144) and the bal (85230), keep moving until the CA is dry! (also all other bal/rod end on the HF)
- Very Important!! There is a lot of slop on the steering Bushing (86508) and the steering arm 85507 2/4, fill that up!!!! (tighten the screw alone wil not do the job) The steering plate 87531 itself is OK
- tighten the servo saver nut (i use a high Torque Digital Servo: DS1015 from Ace r/c)
- Shim''s between Front Spindle Carrier 85506 and M4 Head Screw
- Shim''s behind Hex Hub Adapter 86387
This wil take most of the slop away!!
By the way: Don''t sel, every car has some flaw !!!!!!!!!!!!!!!!!!!!!!!!! Just enjoy the ride !!!!!!!!!!!!!!!!
Roy
04-17-2008 | 11:58 AM
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From: bathgate, UNITED KINGDOM
RE: Official HPI Hellfire Thread
a mate of mine has just finished building his hellfire and now has a problem i put the engine from my savage on it and theres no drive as in when on ground lots of noise from exhaust and no go but when you lift it up and give it some throttle the whells will move i know theres nothing with engine as i use it twice a week any ideas ITS OK ALL SORTED KNOW
04-17-2008 | 06:32 PM
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From: Jay,
UT
RE: Official HPI Hellfire Thread
ORIGINAL: joeyvaz
I too have just torn down the front end trying to reduce the slop. My biggest problem is where the servo saver meets the upper deck, just like you-j-boy. I put a washer between the top deck and servo saver-not much difference. I tightened the servo saver purple screw as tight as I could-nothing. I still haven't found a way to remove the rediculous amount of slop this Trug comes with right out of the box. An email to HPI has yielded no help.
I am actually contemplating selling the Hellfire and puting the founds toward an Eight T or something in the level of Truggy.
Good luck,
Joe
I too have just torn down the front end trying to reduce the slop. My biggest problem is where the servo saver meets the upper deck, just like you-j-boy. I put a washer between the top deck and servo saver-not much difference. I tightened the servo saver purple screw as tight as I could-nothing. I still haven't found a way to remove the rediculous amount of slop this Trug comes with right out of the box. An email to HPI has yielded no help.
I am actually contemplating selling the Hellfire and puting the founds toward an Eight T or something in the level of Truggy.
Good luck,
Joe
Yeah I hear you man. My problem is that I see too many Losi's and Mugens that break up under racing conditions. If the Hellfire SS is nothing else, it is tough! Not to mention the price. You cant pick up a NIB mugen or Losi off of Ebay for 300 or less. I go to club races and between heats when everybody else is tearing there trug apart cause something is broke or bent I just sit there wondering how somebody could possibly want to tear down there vehicle between one race and the next. I have never broken my SS on a track. Matter of fact I've only broken one a-arm so far! I have had no trouble with diffs, spur, or any of the things that seem to plague the RTR guys. But I never know when my steering servo is going to give up the fight. Once I get this problem fixed the SS will be a dream to race.
Actually if I was going to sell, I would sell everything, MGT, Cyclone, Axe EZ, two electric evaders, and 4 micro T's. I figure I could use the grand total to get a Baja 5B....[X(]
Only thing that stops me really is that there would't be anyone for me to race around here!
Buzz... thanks for the tips (again lol). I plan to look into these areas first chance I get. If I can come up with a good and practical way to keep the servo saver from wiggling I will let everybody know.
Post yoo's later!
04-18-2008 | 01:10 PM
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From: Jay,
UT
RE: Official HPI Hellfire Thread
So how come nobody's told me that I'm an idiot yet???? - LOL - I tore down the front end yesterday and the first thing i realized as that the servo saver is doing just what it's supposed to do. I mean if it doesn't pivot, it aint working! LOL Ofcourse its going to wiggle back and forth... thats what it does!!! All I have been seeing is the servo traveling back and forth from the slop right?
I am in the process of doing what Buzz said to do and I suggest that the rest of you forget what I said and do the same thing. My post really makes no sence!! LOL
I also have figured out that theres a fair amount of slop coming from my Futaba 3305 servo alone. I have been told to stop being cheap and get a good servo. I guess I'll have to try it cause the 3305 ain't helping matters much. They are a great high torque metal geared servo but I think I need something that doesn't budge unless my radio tells it to. I'll keep working at it and let you all kno what I find.
Post ya'all later!
I am in the process of doing what Buzz said to do and I suggest that the rest of you forget what I said and do the same thing. My post really makes no sence!! LOL
I also have figured out that theres a fair amount of slop coming from my Futaba 3305 servo alone. I have been told to stop being cheap and get a good servo. I guess I'll have to try it cause the 3305 ain't helping matters much. They are a great high torque metal geared servo but I think I need something that doesn't budge unless my radio tells it to. I'll keep working at it and let you all kno what I find.
Post ya'all later!
04-24-2008 | 02:54 AM
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From: santa maria, CA
RE: Official HPI Hellfire Thread
this is one tough truggy. love it. will have pics up soon. had to pick up all new front arms after the steering servo went out and hit a tree. so while i was at it got shock towers and a few little odds and ends.
04-25-2008 | 12:58 PM
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From: bathgate, UNITED KINGDOM
RE: Official HPI Hellfire Thread
thought i would show a pic of my hellfire ss nothing special os.30 engine savage pipe waiting for hellfire one to come mhas anyone tried the carbon brake disc`s if yes are they any good
04-25-2008 | 07:47 PM
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From: santa maria, CA
RE: Official HPI Hellfire Thread
when i got my hellfire they didnt have the ss kit so i just got the RTR. i have:
Integy front and rear A-arms (purple)
Integy front and rear shock tower mounts (purple)
Integy front and rear chrome bumpers.
and a few other integy parts.
axis torque style rims in the rear mounted on paddle tires. and a few other things. i live 10 miles from Pismo beach Cali. i just took some video, going to edit it and then will post it.
how do you upload pics?
Integy front and rear A-arms (purple)
Integy front and rear shock tower mounts (purple)
Integy front and rear chrome bumpers.
and a few other integy parts.
axis torque style rims in the rear mounted on paddle tires. and a few other things. i live 10 miles from Pismo beach Cali. i just took some video, going to edit it and then will post it.
how do you upload pics?
04-28-2008 | 10:05 PM
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From: santa maria, CA
RE: Official HPI Hellfire Thread
ORIGINAL: syvpunk
when i got my hellfire they didnt have the ss kit so i just got the RTR. i have:
Integy front and rear A-arms (purple)
Integy front and rear shock tower mounts (purple)
Integy front and rear chrome bumpers.
and a few other integy parts.
axis torque style rims in the rear mounted on paddle tires. and a few other things. i live 10 miles from Pismo beach Cali. i just took some video, going to edit it and then will post it.
how do you upload pics?
when i got my hellfire they didnt have the ss kit so i just got the RTR. i have:
Integy front and rear A-arms (purple)
Integy front and rear shock tower mounts (purple)
Integy front and rear chrome bumpers.
and a few other integy parts.
axis torque style rims in the rear mounted on paddle tires. and a few other things. i live 10 miles from Pismo beach Cali. i just took some video, going to edit it and then will post it.
how do you upload pics?
04-29-2008 | 11:38 AM
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From: santa maria, CA
RE: Official HPI Hellfire Thread
Thanks, yeah i noticed the wheels right after i took the pic. lol. stuff like that happens after a 12 hour work day and wanting to come home and put my truck back together.
04-29-2008 | 09:31 PM
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From: At a race track near you,
CA
RE: Official HPI Hellfire Thread
ORIGINAL: j-boy
hey folks! OK so I just finished reading through the whole thread! Seriously! It took a few days but I managed to do it. I''ve been looking for any and all ideas to improve steering.
If you recognize me you''ll know that I posted all the pics of places where you can grind clearance to gain more overall steering. I have real good radius and all that but I''m still fighting the slop! I have to set my endpoint adjustments way past the point of straining the servo to get the wheels to hold a nice tight turn. I am on my third fUTABA 3305 and it''s starting to get annoying. If I adjust the endpoints so as to preserve the servo I lose about half of my turning radius. One of the worst places I can see is the servo saver. The whole thing actually pivots a little allowing for the whole steering assembly to slop back and forth. I think this is where a lot of the problem is. I don''t think tightening the servo saver will help because as I said the whole thing wiggles back and forth between the chassis and the upper deck. I will tear her down this weekend to try some of the ideas other guys have had that I have read about but I was wondering if anyone had noticed this allready and figured out a way to fix it? I am thinking maybe a shim under the saver so that when tightened up it will snug the servo saver down against the chassis?
Anyhow, I still really like my SS. I can take it to the track, and I may not be as nimble or light as the other truggys, but none of them can take the abuse that my Hellfire can take! "To finish first... first you must finish"!!!!! I am soon to have my own track in my back yard! It will be small but I can''t wait cause I''ll be able to make setup adjustments and know immediately how they effect handling and all that stuff. You can''t reallly do that just bashing around and the tracks around here are to far away just to go hang out at and mess with setup. It''s gonna be too kewl! Post u guys later!
hey folks! OK so I just finished reading through the whole thread! Seriously! It took a few days but I managed to do it. I''ve been looking for any and all ideas to improve steering.
If you recognize me you''ll know that I posted all the pics of places where you can grind clearance to gain more overall steering. I have real good radius and all that but I''m still fighting the slop! I have to set my endpoint adjustments way past the point of straining the servo to get the wheels to hold a nice tight turn. I am on my third fUTABA 3305 and it''s starting to get annoying. If I adjust the endpoints so as to preserve the servo I lose about half of my turning radius. One of the worst places I can see is the servo saver. The whole thing actually pivots a little allowing for the whole steering assembly to slop back and forth. I think this is where a lot of the problem is. I don''t think tightening the servo saver will help because as I said the whole thing wiggles back and forth between the chassis and the upper deck. I will tear her down this weekend to try some of the ideas other guys have had that I have read about but I was wondering if anyone had noticed this allready and figured out a way to fix it? I am thinking maybe a shim under the saver so that when tightened up it will snug the servo saver down against the chassis?
Anyhow, I still really like my SS. I can take it to the track, and I may not be as nimble or light as the other truggys, but none of them can take the abuse that my Hellfire can take! "To finish first... first you must finish"!!!!! I am soon to have my own track in my back yard! It will be small but I can''t wait cause I''ll be able to make setup adjustments and know immediately how they effect handling and all that stuff. You can''t reallly do that just bashing around and the tracks around here are to far away just to go hang out at and mess with setup. It''s gonna be too kewl! Post u guys later!
04-29-2008 | 10:33 PM
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From: santa maria, CA
RE: Official HPI Hellfire Thread
they are hella sick. throw up a 3 foot roost behind the truck. i got video that i am putting together. when i am done i will post it.
05-02-2008 | 10:42 AM
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From: Barton, North Lincolnshire, UNITED KINGDOM
RE: Official HPI Hellfire Thread
Hey,
Just bought a Hellfire SS yesterday, second hand. Have a few questions. I have taken my Hitec 5645mg digital servo from my Firestorm and put it in the Hellfire for the steering, should it be sufficient? I was unsure whether to leave it in my Firestorm and get an Ace 1015 as I've heard you need about about 200 ounce/inch, the 5645mg is about 168 I think.
Also, I've heard you need to shim the difs, however the previous owner has said he hasn't needed to, should I just keep it as it is or shim them?
Just bought a Hellfire SS yesterday, second hand. Have a few questions. I have taken my Hitec 5645mg digital servo from my Firestorm and put it in the Hellfire for the steering, should it be sufficient? I was unsure whether to leave it in my Firestorm and get an Ace 1015 as I've heard you need about about 200 ounce/inch, the 5645mg is about 168 I think.
Also, I've heard you need to shim the difs, however the previous owner has said he hasn't needed to, should I just keep it as it is or shim them?
05-02-2008 | 01:16 PM
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From: Jay,
UT
RE: Official HPI Hellfire Thread
I could be wrong but I think all the diff problems were with the RTR version. I definitely haven't had any diff trouble out of "my" SS.
05-02-2008 | 06:09 PM
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From: Gold CoastQueensland, AUSTRALIA
RE: Official HPI Hellfire Thread
If your only going to bash, the 5645 will do. But if racing you will need at least 200oz as the HF is a ***** to turn.
Hold the HF firmly on the ground and hold the spur gear with your finger and push the HF along the ground. If you hear clicking coming from the diffs they might be worn.
Personally, I would open up a diff anyway and see what wear there is on the pinion and crown. Its real easy to get the diff out on the HF, 5 min job.
I think the diffs in both the rtr and ss are the same. In most cases they do need alot of shimming to get right. Ive a slightly modded rtr. With the standard k 4.6 the diffs didnt give me too much trouble but as soon as i dropped in the os28 ive had continual problems with the diffs, even though i shim etc. The os is just too much for the HF diffs.
The ss is much much stronger than the rtr in most other areas.
Hold the HF firmly on the ground and hold the spur gear with your finger and push the HF along the ground. If you hear clicking coming from the diffs they might be worn.
Personally, I would open up a diff anyway and see what wear there is on the pinion and crown. Its real easy to get the diff out on the HF, 5 min job.
I think the diffs in both the rtr and ss are the same. In most cases they do need alot of shimming to get right. Ive a slightly modded rtr. With the standard k 4.6 the diffs didnt give me too much trouble but as soon as i dropped in the os28 ive had continual problems with the diffs, even though i shim etc. The os is just too much for the HF diffs.
The ss is much much stronger than the rtr in most other areas.
05-03-2008 | 08:48 AM
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From: Barton, North Lincolnshire, UNITED KINGDOM
RE: Official HPI Hellfire Thread
Thanks for the info.
The guy before me ran a OS .30 and said he had no diff problems. I'm going to be running the 4.6HO.
I will take the diffs apart at some point as I'm a bit of a fiddler anyway.
As for my Servo, I will only be bashing really, if I do ever race, it won't be in the near future so I'll stick with the 5645mg.
Am looking at buying the Speed Tech carbon upper deck in the near future and the GH alum arms and hub set. Any info on these parts? They are for looks as much as anything as I have a Firestorm which I have alum/carbon parts for and want it to match. Are alum arms on the Hellfire a bad idea?
The guy before me ran a OS .30 and said he had no diff problems. I'm going to be running the 4.6HO.
I will take the diffs apart at some point as I'm a bit of a fiddler anyway.
As for my Servo, I will only be bashing really, if I do ever race, it won't be in the near future so I'll stick with the 5645mg.
Am looking at buying the Speed Tech carbon upper deck in the near future and the GH alum arms and hub set. Any info on these parts? They are for looks as much as anything as I have a Firestorm which I have alum/carbon parts for and want it to match. Are alum arms on the Hellfire a bad idea?
05-04-2008 | 02:34 PM
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From: glenwood,
IL
RE: Official HPI Hellfire Thread
Hey fellas whats the best set up clutchbell to spur for high speed im just bashing not racing and would like to know other than the 16tooth i could could are there any other compatiable bells that fit the spur of the hellfire....O LOVING THE HF and best part about it some one just gave it to me with a brand new nitro k motor. o its all stock performance wise.
05-05-2008 | 07:37 PM
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From: Rome,
NY
RE: Official HPI Hellfire Thread
Hey Guys i was wondering how the Hellfire stacks up in the truggy class and how it is compared to a losi eight. I am thinking about buying one and racing it in the truggy class and i am wondering if that would be a good truck
05-05-2008 | 09:49 PM
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From: Singapore, SINGAPORE
RE: Official HPI Hellfire Thread
Hi, everyone.
I have a small issuse to ask thank u.
I have a hellfire and are bashing together with a group of basher which all of them are playing with buggy.
Have try buzzy01 suggestion (thread post 1166). It improve alot on the steering, but is there anyway can be better? i try the toe out at type (front) but too much it not stable at striaght line. i try hard break n acc, diff at turn it can have smaller turn and faster. But the gear also wear out faster., due to the action done.
Is there anyway, a truggy can out run the buggy at turn ??? or maybe same.
thank.
I have a small issuse to ask thank u.
I have a hellfire and are bashing together with a group of basher which all of them are playing with buggy.
Have try buzzy01 suggestion (thread post 1166). It improve alot on the steering, but is there anyway can be better? i try the toe out at type (front) but too much it not stable at striaght line. i try hard break n acc, diff at turn it can have smaller turn and faster. But the gear also wear out faster., due to the action done.
Is there anyway, a truggy can out run the buggy at turn ??? or maybe same.
thank.
05-06-2008 | 04:07 AM
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From: Gold CoastQueensland, AUSTRALIA
RE: Official HPI Hellfire Thread
Windowlicker, aluminium arms dont flex like the plastic and are heavier, ok for bashing.
Igotntc3, i dont think you can go much higher than 16t cb without starting to damage your shoes. The k4.6 is a torque engine not a high speed engine.
Pratt29j, the hellfire is not even close to an eight t except in price! Alot better truggies around for less $. I have one and sadly its not a race level truggy unless you can get it cheap and spend $ to keep it running and spend lots of time on getting it setup right.
Kyo crane, as you now no the hellfire isnt the best at turning and will not turn like a buggy. All you can do is the steering mods suggested in the forums,lighter diff oil in the rear helps to.
Igotntc3, i dont think you can go much higher than 16t cb without starting to damage your shoes. The k4.6 is a torque engine not a high speed engine.
Pratt29j, the hellfire is not even close to an eight t except in price! Alot better truggies around for less $. I have one and sadly its not a race level truggy unless you can get it cheap and spend $ to keep it running and spend lots of time on getting it setup right.
Kyo crane, as you now no the hellfire isnt the best at turning and will not turn like a buggy. All you can do is the steering mods suggested in the forums,lighter diff oil in the rear helps to.
05-06-2008 | 08:39 AM
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From: Barton, North Lincolnshire, UNITED KINGDOM
RE: Official HPI Hellfire Thread
Today I recieved the used 4.6ho I got from ebay. I have a new piston and liner coming any day now. Anyway, the roof of the combustion chamber looks very brown, with slight pitting around the outer edge. Is this going to be a problem? I know you can clean off the brown residue but as for the pitting, will it make any difference to the engine? Should I try to polish them out at all or just leave it all alone? I could buy an entire new head, but I'd rather not spend any more money or it will end up costing the price of a new engine!
05-07-2008 | 09:11 PM
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From: Gold CoastQueensland, AUSTRALIA
RE: Official HPI Hellfire Thread
Windowlicker, post your question and a photo if you can in the engine section. Heaps of experts re engines there. Iam no expert on engine internals.
Kyo crane, all you can do is try different setups such as shock fluids and shock tower points, diff fluids, sway bar (i took my front sway bar off, seems to help swing the rear end around). Go to truggyracers.com, they have setups for the hellfire and lots of info.
Kyo crane, all you can do is try different setups such as shock fluids and shock tower points, diff fluids, sway bar (i took my front sway bar off, seems to help swing the rear end around). Go to truggyracers.com, they have setups for the hellfire and lots of info.
