guys..can a novarossi heat sink be fitted on to other engines such as an os tr?

i dont think so

No, they are not compatible with each other

Yo, why you didnt tell us about your engine problems?? what is your midrange screw setting? based on your description, it should be not flush with the carb but turned out by 15-30mins provided your engine is not hand modified. If it is, turn in by about 5 mins and try again, if still cannot idle more than 15 secs, then try maybe 1-2mins. I think if it can idle more then 10 secs, it should be alright. FYI, during the last nova race, my engine could only idle for 10secs coz I was using #7F. Works superbly when the engine is running at high speed. If you feel that your car will flame out after idling for a few seconds, pulse your throttle when you want to drive it. I do that during the start of a race. pulse it quickly for about 2 secs so that it doesnt flame out. Need more race tips?.....

I have the RR12L3 mounted in my Rs4-3ss and it has torque galore!!! I use this car for parking lot racing only and this engine really moves this car quick. I run it without the restrictor and 30% blue thunder. Took a long time to break in (~10tanks). Idles forever, never flames out and runs over 10 mins on tank. Engine runs like stink...excellent engine. Now if only NovaRossi would make a .18 small block to blow away the OS TZ...

10 minutes? do you have the 2 gallon upgrade tank on your rs4?

i think its WAY lean

if thats the case then your motor has a prob man

you cant continue to use it like that!

I've a NovaMega SX12 without crankshaft. But I'm not sure its model number. It's turbo 3 ports without sleeve or backplate modificaiton. Front bearing is 607RS (size 7x19).

My guess is it's SX12 RE-T 3P since crankcase looks like the photo on myTSN (http://www.mytsn.com/products/desc.asp?prid=2671), with big front bearing compare with SX12 SS series.

I know all SX12 series are based on Nova engine. If my SX12 is SX12 RE-T, which SG crankshaft should I use?

Thanks.

After some surfing, it seems RS12 series is the correct base model of SX12 RE.

So, beside Nova RS12 crankshaft, what else I can use? RB X12? TOP TT12? Mugen MT12?

Your engine had a Turbo crank, so any of the above mentioned engines's turbo version cranks will fit.

AFM

I think I will get a RS12 S3 and S5 soon. Hope they can bring my dead engine back to operation.

Thanks AFM.

One of the above posts said I was running the engine too lean. In order to get the engine to idle, I had to lean out the low speed needle. Once it idled good, I richened the needle just enough to keep the engine idling. As I got near the end of the break in period I richened the low speed again as the engine was getting more powerfull . I did not change the high speed needle until after I ran over 10 tanks. I barely changed the high speed needle from stock (approx 20min position) and the engine runs great. I think running this engine with the 30% nitro and no restrictor allows more power without consuming more gas. The engine temp is around 230-240 and seems fine so far. I think the engine is far from lean as the needles are currently close to stock. Once spring comes around, I will see if the engine is running too lean during a real race...

i think your settings aren't wrong......

your tanks lasts as you mentioned just because you don't run at a race track.....

very true...but I never said I got over 10 minutes racing. Once we broke in the engine, I ran the engine non-stop and I am still getting over 10 minutes runtime. I am sure during a real race we should be able to get between 6-7 minutes. I just want to confirm if my settings are in the ballpark after breakin. Once spring starts, I will be tuning the engine for parking lot racing with the emphasis on accelaration over top speed...

You said you are running your engine non stop and it lasts 10minutes

well that sounds lean to me if the car lasts 10minutes on one tank while your driving non stop