HPI RS4 MT fighting motor HEAT !!
02-01-2006, 10:58 PM
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HPI RS4 MT fighting motor HEAT !!
Well, as all of you know I wanted to race my rs4 mt last weekend. Tried that.. but found out that the motor (11x2 revolution) was way too hot in there and I had to do something. So, I cut open the cab and put screens in there to prevent rocks from entering but still let air come in.
I also ordered some memory heatsinks for computers and will stick them on the motor plate and I also got 2 fans, a 30mm and a 40mm 5v fan that I will hook up directly to my receiver and activate via my 3rd channel.
I don't know which of the 2 fans I'll use.
Here are some pics. Will get the fan and heatsinks tomorrow !!
Can't wait.
I also ordered some memory heatsinks for computers and will stick them on the motor plate and I also got 2 fans, a 30mm and a 40mm 5v fan that I will hook up directly to my receiver and activate via my 3rd channel.
I don't know which of the 2 fans I'll use.
Here are some pics. Will get the fan and heatsinks tomorrow !!
Can't wait.
02-01-2006, 11:02 PM
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RE: HPI RS4 MT fighting motor HEAT !!
I also ordered the slipper clutch kit and some graphite a-arms. Because the truck was bouncy with the al ones... I had to put too hard springs and too much oil weight to keep it level 
I'll put some 25 in there and lugnut t tires with HPI 2196 rims ! BLACK baby !
The slipper clutch will help me save the RRP diffs as well. The lugnut tires I already run on the track on my xxxt and they are awesome. On the specific track I run at, they are slightly better than step pins as they empty dirt quicker and bite harder.
Here are pics of both.
Scy
I'll put some 25 in there and lugnut t tires with HPI 2196 rims ! BLACK baby !The slipper clutch will help me save the RRP diffs as well. The lugnut tires I already run on the track on my xxxt and they are awesome. On the specific track I run at, they are slightly better than step pins as they empty dirt quicker and bite harder.
Here are pics of both.
Scy
02-02-2006, 09:19 PM
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RE: HPI RS4 MT fighting motor HEAT !!
when i forst looked at the under body i thaught it was just hole and i thaughr. "gee thats redundat" but then you came back with the mesh and that is less redundant
sorry if what i just said makes no sense cause i spent the last 12 hours in school for tech club.
sorry if what i just said makes no sense cause i spent the last 12 hours in school for tech club.
02-02-2006, 09:42 PM
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RE: HPI RS4 MT fighting motor HEAT !!
Does it work though? I think thats the main concern here. The screens put in look really nice though. They really do look cool though. It really doesnt look like the fan is held in too securely but I cant really tell just by juding from the pics. Does the fan move around alot when you run it? That could render the fan useless if its not blowing air on the motor!
02-02-2006, 10:35 PM
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RE: HPI RS4 MT fighting motor HEAT !!
The fan is SOLID it will not rock in either way. I just ran it outside and it held on REALLY securely...
I'm not worried about that at all. I'm more worried if it's gonna work at all. I'll be able to tell in a week when I try to race it again. I should have my slipper and graphite arms by then. I also added some heatsinks on the motor plate.
Scy
I'm not worried about that at all. I'm more worried if it's gonna work at all. I'll be able to tell in a week when I try to race it again. I should have my slipper and graphite arms by then. I also added some heatsinks on the motor plate.
Scy
02-02-2006, 11:02 PM
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RE: HPI RS4 MT fighting motor HEAT !!
it could also be the sheer weigh of the truck...that is a bit of alum. and cutting some of that will help. ii looks like the diffs are alum. too fin some ball diffs (i think they make them for it) that will lighten up the roatating mass. and that should help some with the heat problem.
02-02-2006, 11:05 PM
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RE: HPI RS4 MT fighting motor HEAT !!
ORIGINAL: scyan
Because the truck was bouncy with the al ones... I had to put too hard springs and too much oil weight to keep it level
Because the truck was bouncy with the al ones... I had to put too hard springs and too much oil weight to keep it level
02-03-2006, 09:14 AM
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RE: HPI RS4 MT fighting motor HEAT !!
Yeah, I know all that... For your information, the al diffs you see in there are already ball diffs !
I'll be putting some graphite a arms in there and changing springs and oil to 25w....
Scy
I'll be putting some graphite a arms in there and changing springs and oil to 25w....
Scy
02-03-2006, 12:27 PM
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RE: HPI RS4 MT fighting motor HEAT !!
you should be able to duct in thru the side of the body to force air into the motor fan. i will have to look at mine sometime to make sure though.
02-03-2006, 03:18 PM
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RE: HPI RS4 MT fighting motor HEAT !!
sooorrry. i didnt know but the alum is still heavyer than plastic and finding lighter diff would help.
ORIGINAL: scyan
Yeah, I know all that... For your information, the al diffs you see in there are already ball diffs !
I'll be putting some graphite a arms in there and changing springs and oil to 25w....
Scy
Yeah, I know all that... For your information, the al diffs you see in there are already ball diffs !
I'll be putting some graphite a arms in there and changing springs and oil to 25w....
Scy
02-03-2006, 04:45 PM
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RE: HPI RS4 MT fighting motor HEAT !!
Yeah, I guess that it would help, less rotating mass. The fun in the robinson ones is that they are pretty much indestructible and stand up to TONS of abuse without barking... So, I kinda like that as well. This truck is a real tank. I saw fear in the 4x4 buggy class guys last time I put it on track. They're afraid that if they stall at the end of the strech i'm just going to cut them in half when I run into them... heheheh
02-04-2006, 12:07 AM
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RE: HPI RS4 MT fighting motor HEAT !!
^ he he^ i am sure you won get rid of much heat no matter what you do (except the fan and sinks) the motor will be hot, thats why i love 2wd...but 4wd is alwas fun too i guess
10-02-2006, 12:08 AM
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RE: HPI RS4 MT fighting motor HEAT !!
Hello, I have a question for you. What is that thing mounted on the rear of the rear shock tower? I have a RS4 MT and don't have one of those. Thanks
