AK_Nguyen

NOVAROSSI "421" Turboplug Long Stroke 21. OFF ROAD S421BSX/1


Displacement 3.5 cm3
Maximum power 2.65 hp
R.P.M. (M.P.) 33.000 rpm
Practical Range 6.000÷ 38.600 rpm
Bore x Stroke 16.26 mm x 16.80 mm
Ports nr. 8
Piston type Die-cast
Crankshaft Ø 14 mm Crankshaft Type SG
Glow Plug Type Turbo
Exhaust Type Rear

How do you feel this engine? I intent to buy one. But in my club, no-one used it before.
Would you like giving me some ideas?
Thanks all!

houston

iTrader: (96)

excellent engine , very near the same as the s821b engine that has been discontinued as well . more recently though

www.houstonsengineservice.com and read what i say about the 821b

AK_Nguyen

Thank houston!
My friend, he said that 421B is better than 821B, is that right?
My brother had a 821b engine and it had been working very well untill now. And 421B has two kinds, one is turbo and another is standar, which is better?

houston

iTrader: (96)

whichever plug you prefer really

AK_Nguyen

Hix hix, i haven't used turbo yet so i don't know which can make my engine stronger.
turbo and standar, are they the same, not have different?

houston

iTrader: (96)

you will find a performance gainwith the turbo when properly tuned

Mr. Twister

iTrader: (4)

we have had great luck with the C6tgc, and 97T, the Nova plug=C6TGC has a more forgiving tune for most people, the 97 just a tic less on tune, I like the C6TGC if you where wondering where to start. (TURBO)

jpz_67

iTrader: (57)

If you could find one of the original 421's like the one in the picture I would get it. I had one of the originals and it was one of the baddest motors I ever owned. A lot of torque down low and an unreal top end. Made a real nice sound on a 200 ft straight.

Mr. Twister

iTrader: (4)

you should here them in an oval car wickedman