hyper 21 vs mac star.28
 

which one is better for a hyper 7??
is the 21 more fuel efficient?
can you get the 21 to go as hard as the .28?

RE: hyper 21 vs mac star.28
 

I've seen two hyper 8 with one had the mac star .28 and the other had the 21. I can barely compare them. They have them two of my friends. They put them ia a race and the winner was the 21. The race was in a dirt ground with no little stones and that stuff, in 30-40 metres, the 28 finish half metre after the 21. :D

RE: hyper 21 vs mac star.28
 

fair enuff sounds interesting lol
who had more fuel left lol???

RE: hyper 21 vs mac star.28
 

I have both engines and the 28 uses more fuel.

RE: hyper 21 vs mac star.28
 

28 more cc than the 21, of course and the 28 needs more fuel. ;)

RE: hyper 21 vs mac star.28
 

The guy needs to fit a slightly larger clutch bell, then there would be no chance of the 21 4 port beating the 28

RE: hyper 21 vs mac star.28
 

Have owned both 4-port and 8-port hyper 21's. The 4-port is a nice motor, but the 8-port is a screamer than will run with almost anything out there. The 8-port will smoke a mac star .28.

RE: hyper 21 vs mac star.28
 

i have owned the hyper 21 8 port and the mach 28 the mach 28's all need to be binned was gutted rubbish engine lasted gallon or so and then problems started so i just bought the hyper 21 8 port. i had them in my hyper 8.

RE: hyper 21 vs mac star.28
 

Hyper .21 8 port rocks for the money. There's nothing else near for speed in that price range.

RE: hyper 21 vs mac star.28
 

Yeah, i agree (for the money), but the hyper 8 with the .21 engine on, SMOKED by my hyper 8 with the Vspec on :D;) Just you loving that victory smell?:)

RE: hyper 21 vs mac star.28
 

Yeah but its a $120 engine against a $270 engine (and thats the cheap version). So not really comparable.
My 1.1 car smokes my wifes, but mine cost £20,000 and hers £500 :)

RE: hyper 21 vs mac star.28
 

Your wife has RCs? Oh man, i must see that. Girls actually getting into the hobby :)

RE: hyper 21 vs mac star.28
 

Something tells me dialectis not your first means of comunication, would you like us to start using cave drawings?

RE: hyper 21 vs mac star.28
 

So the .21 8 port is a very competitive engine then? How about life span? I've got one that came with my violator, but I have yet to get a bump box for it so I can't run it yet. I've got a mach 28 in my hyper 7 and am not too thrilled with it. Just got done sealing it tonight so I'll try it again tomorrow. Another 21 8 port may be what I replace it with.

RE: hyper 21 vs mac star.28
 

wow theres alot of info here guys;) ive always wanted a 21 cos i heard the 8 port kicks ass:D my .28 lasts about 9 mins a tank even when im doing alot of full throttle work so im happy with it but i want a 21 lol[8D]