.21 in a HPI RS4 1

[marcoze]

I've heard it done before, anyone have any information?

 

[Nitroaddict]

it can be done - but i wouldnt recommend it. Here is a link to a post about doing the same in an NTC3. The cars are simlilar - so the info should be compatible

https://www.rcnitrotalk.com/forum/showthread.php?s=&threadid=4088

 

[marcoze]

< i made that other thread, lol

My buddy just got the RS41 for 25 bucks,and he wantto throw a Manly Motor in it, and he said "If i can't fit a 351c Ford in it, I guess ill have to settle with a .21"

 

[HumboldtBlazer]

go here

Converting the SNRS4 is almost the same on a RS4 since they both came from the factory with a .15 FE engine.

Also go here

part number WLF029, available from Bruckner Hobbies, 800 288-8185

it only works with the belt models not the new shaft driven models.
Seems to be the part you need since you have the belt driven version.
Hope I could help.:smart:

 

[bbb]

I did the conversion with a Racer2 and an XTM 24.7. You need the conversion kit form wolfpack, a manifold and a short 1/8th scale pipe (I used a CVEC). I would recommend upgrading the brakes to the RRP aluminum kit, getting aluminum pulleys and belt tensioners all around. The extra power will tear your car up if you don't.