R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Thread Tools Search this Thread
Old 02-19-2014, 11:45 PM   #1
Tech Rookie
Join Date: Feb 2014
Posts: 2
Default HPI Super Nitro RS4 Project

Hey guys,

Recently got back into the RC hobby, and I have an old HPI Super Nitro RS4 (300mm wheel base) that I'm trying to bring back to life. Was just wondering what kind of engine/header/pipe would fit it. What would be the best? Having a tough time finding the parts, so any tips/advice on what to purchase and where I can find it is greatly appreciated.

czilifian is offline   Reply With Quote
Old 02-20-2014, 12:05 AM   #2
Tech Rookie
Join Date: Feb 2014
Posts: 2
Default Pictures Of Progress....

Attached Thumbnails
HPI Super Nitro RS4 Project-1.jpg   HPI Super Nitro RS4 Project-2.jpg   HPI Super Nitro RS4 Project-3.jpg  
czilifian is offline   Reply With Quote
Old 02-20-2014, 07:38 AM   #3
Tech Elite
JLock's Avatar
Join Date: Nov 2001
Location: North Dallas, TX
Posts: 4,453
Trader Rating: 3 (100%+)

One of the better engines to use is the OS 18CV or 18TZ series. They are bolt right in with no mods to chassis or engine mounts. Very easy to break in and tune and good on fuel consumption. You could shoehorn a .21 into the car but will have to do some mods and have plenty of clutch shoes and gears that you will tear up with the extra power. You could also just go with any of the new .12 engines are modded that have tons of power now (some are just as fast as some .21s). Pipes are like always, just have to find the right one to fit the engine that you choose. Hope this info helps.
Texas 5
It's not what you know; it's what you can prove.
The only thing that is for sure is that nothing is for sure!!!
The needs of the many outweigh the needs of the few, or the one.
There are 2 things in life that are infinite: the universe and stupidity.
JLock is offline   Reply With Quote
Old 02-21-2014, 08:21 PM   #4
Tech Regular
Join Date: May 2013
Posts: 411

Gulf colors on a Diablo GT. Nice! I kinda miss my Super NRS4 with its big Diablo and Viper bodies but then I fire up my WR8 3.0 and forget all about it. Things have come a long way since then. Still have my original NRS4 though.

I too would use an OS 18 series. I'd rather drive than tinker with an engine. At least you don't have the two-speed. I always thought that was where I went wrong with mine. That plus the NitroStar .15 SS made the thing nearly uncontrollable with those slicks. The WR8 series has drift and rally tires available that might fit. They won't be as wide but man they grip so much better.
My hovercraft is full of eels.
Metal One is offline   Reply With Quote
Old 02-22-2014, 07:25 AM   #5
Tech Adept
Join Date: Feb 2013
Posts: 169
Trader Rating: 7 (100%+)

A very nice 12 or 18 with threaded shaft would be your best bet since they have enough RPM to get you going and as stated above are direct drop ins. On the other hand, I opted to drop a 21 in my super and there were no modifications done to the chassis. Wolfpack radicals made custom mounts and other parts for these cars a few years ago and from my understanding, he still has a few parts around that he'll get rid off. I also have a 21 in my smaller Racer2 and its a beast. Here's my super with a Kangaroo 21 and 1/8 scale wheels all the way around.

Attached Thumbnails
HPI Super Nitro RS4 Project-super1.jpg  
Attached Images
100mph is easy (with batteries)
117mph nitro HPI Racer2
115mph gas FG
107mph twin nitro buggy
99.61mph nitro buggy (at ROSSA official event)
Gt100 is offline   Reply With Quote
Old 02-22-2014, 11:47 AM   #6
Tech Adept
Cudacharger's Avatar
Join Date: Nov 2009
Posts: 200
Trader Rating: 4 (100%+)

Nice SNRS4 GT100.

I have a stockpile of parts for SNRS4 czilifian if your looking. PM me.

Not on this site very much so be patient with me when responding.
Cudacharger is offline   Reply With Quote
Old 02-23-2014, 03:05 PM   #7
Tech Adept
prostock's Avatar
Join Date: Mar 2008
Location: L.I.N.Y
Posts: 176

This was a fun car, which I held on to it!
Summit / TMAXX / Revo 3.3 / Slash 2wd STRC LCG / Slash 4x4 Platinum / HPI RS4 3 Nitro / GPV-1 / AX-10 / Redcat Rampage 1/5th / Dromida SC4.18 /
prostock is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 04:23 PM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net