I have the very first rs4 and need a new engine for it very badly. I was wondering what kind of engine would fit it without having to change anything else. I want one that will go around 40 to 50 MPH. I also want to know if they make better shocks that will raise the car a little higher because it seems to bottom out and is wearing down the front end.Thanxs for you help.

t-maxx - how much do u wish to spend?

I don't want to spend no more than 150 dollars.

One of the best engines in the world can be had for that price range. The OS .15 CV-R. It produces over 1.2hp and has diehard reliability! This mill is awesome! if u need a pullstart, get the .15 CV-RX.

make sure u get the standard shaft model, as it is a direct drop in for the RS4

also, get a 2 speed

What kind of Tuned pipe do you suggest to go along with that motor. Thanxs for the help.

you want top end or torque

I was looking for a pipe with top end.Thanxs

I also want to know if they make better shocks that will raise the car a little because it bottoms out and is eating away at the front of the chassis. Thanxs again

it doesnt need to be raised, all you got to do is put thicker shock oil in them and possibly add firmer springs.

You may also want to look at fantoms engines. They are high reving 43k RPM,

These are all specs from fantom but from my expereince with the FR12 03 Rear Exhaust engine their not lyin

http://www.stormerhobbies.com/cgi-bi...ing%20Products

check out the link it has all teh fantom engines with specs.

thanks
ZIZI

Ok thanxs a lot for your help i will go change the springs and oil.

Yes i was looking into fantom engines and my friend has one also. He really like it and it has never let him down. Do they make one that would fit directly into a HPI Nitro RS4(original). Another thing i wanted to ask is how often do you need to change the glow plugs in them. My friend has to replace his every 5 to 10 tanks of gas.

The glow plugs usually last me pretty long im not sure how long in terms of tanks but they last me long enough for my taste.

You will definately be happy with teh Fantom engine or the OS engine they are both great engines have both one in an RS4 3 and one in my XXX-NT.

Im not sure what kind of shaft the Original rs4 needs but if its the standard threaded shaft the it should work fine.

Cool thanxs. I will look into the fantom engine's a little more. Thanxs everyone for the much need help.

I think that the original rs4 needs a standard shaft.

SHOCKS, SHOCKS, SHOCKS!!!!!!!!

Shocks DO NOT raise or lower a car or truck. Ride height is adjusted by the coil springs period. A shock is a damper/stabilizer and nothing more. If you use a shock that is too long for the spring, then the suspension cannot work properly since the spring is what carries the weight of the car/truck. If you use a shock too short for the spring, the suspension cannot work properly and the springs become overloaded and an overall “stiffness” occurs and you might as well not be using shocks at all.

It you want increased height; you’ll need longer springs and shocks or shock extenders (extenders you can make yourself).

If you’re going low profile but want to retain suspension characteristics, then you’ll use shorter shocks and shorter springs. (Cutting springs is an option, just remember that just a little cut goes a long way).

Hey i have the exact same car as you. I bought it with a box start .15 O.S cv-r i think it was. the engine was pretty old and difficult for me to start ( i was still new at this time) but whenever it did it was very strong in the car, enough to spin the wheels. I bought a fantom .12 not the 03 model, and havent been able to break it in as yet but it ALWAYS starts on one or two pulls. Making the engine fit was not a real problem for me, the only thing i had to change were my engine mounts to fit the pullstart assembly, other than that the engine should drop right in no problems. For a .12 its pretty big, the cooling head is large but it looks cooler through the windows when its driving. Just my 02cents, i think this engine will make me very happy cant wait to break it in.

Also concerning shocks, I dont know if this will solve your problem but my front shocks went pretty quickly, to replace them i bought the hotbodies rs43 shocks, They fit fine on my original rs4 and keep the car from hitting the ground. Plus they were cheap 14.99 for 2 cant complain. Also unless your really serious about racing why not just raise the front and rear of the car using your shock tower adjustments?

One more thing to keep in mind is that a fantom only costs about $40 to rebuild compared to $75 for the os cv-r. I have owned both and the only one I would buy again would be the fantom. Its a real powerful, high revving engine that is easy to tune and start. Hope this steers you in the right direction, Jon