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-   -   Help Identify which RS4 this is. (https://www.rctech.net/forum/nitro-road/1042787-help-identify-rs4.html)

Solico 05-10-2019 06:53 AM

Help Identify which RS4 this is.
 
If someone could tell me which RS4 this is? It's way old, probably early 2000s and I have two of them.

Solico 05-10-2019 06:54 AM


YoDog 05-10-2019 09:28 AM

I think it's a RS4-2 because the RS4-3 reversed the layout. It also looks like it has Ofna spur gears/2 speed on it.

GripTLR 05-10-2019 09:42 AM

I also believe it is a Nitro RS4 2

Solico 05-10-2019 10:01 AM

Thanks guys. Any tips on restoring? I planned on changing out the bearings and drive belts - adding a foam bumper too. In terms of Ofna gears, how can I know what my ratio to calculate what engine to get? Thanks.

GripTLR 05-10-2019 10:38 AM

throw any .15 engine in it.

Ebay has all the parts you need to restore it, how far you go restoring it is up to you.

I have been considering picking up a Nitro RS4 2 to resto-mod and leave it as a shelf queen...I cannot find a O.S. .15 engine with the gold low profile cooling head though.

Roelof 05-10-2019 10:46 AM

It looks a bit bigger, It looks to mee a super nitro RS4

Solico 05-10-2019 11:41 AM

I'm between restoring the old HPI engines I have in storage from this car or rebuilding the OS 18cv-r that was on it. Worst comes to worst I think I would just get a new OS! for 110$ I can't beat it.

st_dragn_wagen 05-10-2019 12:26 PM

i just rebuilt one of these about 3 years ago. after researching part numbers i was able to find everything i needed ether on online hobby shops or amazon (this was before HPI's bankruptcy filling though so...). oddly enough one of the hardest parts to find was the front belt. i also just stuck a new HPI 3.0 engine in it. good engine for the car, its been easy to tune, and faster than the old .15FE that was originally in the car and it was dirt cheap.

InTheZoneAC 05-11-2019 10:35 PM

definitely a Nitro RS4 2. You can easily find new belts on ebay. Search A847, A848, and A849 for belts.

Manual is here: http://oldrc.com/HPIFiles/NitroRS42.pdf

I have a fully modified Nitro RS4 2, but after getting back in the hobby I'm not sure I want to drive it again. Finding small pulleys seems like they're impossible to find if you don't buy a roller.

Solico 05-13-2019 01:22 PM

Does anyone know which clutch bell to use with the ofna transmission?

Solico 05-14-2019 07:49 AM

https://www.integy.com/st_main.html?...9#.XNrTjI5KhPY

Does anyone know if these parts are compatible with the NRS4-2?


Mbx4man 05-15-2019 07:54 AM

https://cimg7.ibsrv.net/gimg/www.rct...630c43ac60.jpg
Might be an original RS4 racer edition because of the purple chassis but the upper arm links look like RTR pieces. I still have my RS4 and Pro2 and don't wanna use it from fear of breaking it and not finding parts.

Solico 05-15-2019 10:33 AM

Yea the more I look the less I find :(
I wish there were affordable nitro kits available to build - something like the Sakura/3Racing cars but nitro.I'm DYING to build a kit, so damn expensive though.

GripTLR 05-15-2019 01:21 PM

putting a Traxxas engine into an HPi is like putting a Chevy engine in a Ford....you get beat up for things like that.

I find clean Nitro RS4's on Ebay all the time.

There is a brand new nitro mini RS$ on there right now, and multiple brand new Nitro RS4 2's. There was even a brand new Nitro RS4 kit that is still unbuilt for like $380


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