If i run this, must i get this?

[Killpatrickyum]

Can u even get the yx 160 anymore ?

 

[kosta]

Ooh sounds like there might be a 5 buck lottery ticket on this. Lol
Im lead to believe that the ho has a slightly longer stroke than the earlier model.
If what your saying is right that would mean not many people at all are running 184 but in fact a 177

Haha, yeah I could always use 5 bucks.

Here's a thread I found with some info.

http://www.miniriders.com/ask-tech-masters/28043-z155-vs-z160-ho-engines.html

My paypal addy is.............lol. :grinning-smiley-003

And hey Killpatrickyum, I'm pretty sure you can still get the yx. Just gotta search.
And don't worry about getting lapped, with all this power your gonna have, and a bionic shoulder, you'll be ripping.

 

[DHZ_XR8cing]

Haha, yeah I could always use 5 bucks.

Here's a thread I found with some info.

http://www.miniriders.com/ask-tech-masters/28043-z155-vs-z160-ho-engines.html

My paypal addy is.............lol. :grinning-smiley-003

And hey Killpatrickyum, I'm pretty sure you can still get the yx. Just gotta search.
And don't worry about getting lapped, with all this power your gonna have, and a bionic shoulder, you'll be ripping.

I'm not going to take that thread as gospel especially with 5 bucks riding on it.

If what your saying is correct that means bugger all 184's would be out there.
Where can you buy the yx 160 or the crank??

 

[DHZ_XR8cing]

I went out the shed and measured both engines strokes and seems your very right Kosta.

64x64x55.7x0.785/1000X1 = 179cc

 

[Killpatrickyum]

I seem to have hit a miniriders nerve with this one ay
Thing is, mate got the dhz with 155z and we both agree the two motors respond differently his is much more grunt n torque of the line and through each gear where as mine has more range I'm pretty sure we running the same size sprockets , could this noticeable difference be just from the different cam n everything? Has the ho got a milder cam? My mate reckons you would need a computer or something to measure the area between the piston at full stroke n the head n measure the area of compression and compare each motor or something ?? I dunno....

Now just to make this thread even more interesting n to make me not sleep for another week of thinking , why , but why has no one mentioned the v4 head shouldn't I be looking at that ??????

 

[DHZ_XR8cing]

I seem to have hit a miniriders nerve with this one ay
Thing is, mate got the dhz with 155z and we both agree the two motors respond differently his is much more grunt n torque of the line and through each gear where as mine has more range I'm pretty sure we running the same size sprockets , could this noticeable difference be just from the different cam n everything? Has the ho got a milder cam? My mate reckons you would need a computer or something to measure the area between the piston at full stroke n the head n measure the area of compression and compare each motor or something ?? I dunno....

Now just to make this thread even more interesting n to make me not sleep for another week of thinking , why , but why has no one mentioned the v4 head shouldn't I be looking at that ??????

The v4 is poo

 

[Killpatrickyum]

Why u say that?

 

[kosta]

Yes DHZ is right, the v4 is poo. As far as i've heard anyway.

Apparently the ports need a lot of work to even get it close to the power output of a v2.

Best bang for buck option for yx/z160 engines is the big bore kit with v2.

And thanks for clearing that up about the z155/160ho DHZ, you had me second guessing for a minute.

Cheers.

 

[Killpatrickyum]

Ok sweet thanks guys, u been very helpful, any thoughts on what I said bout riding my mates z155 compared to mine?

 

[kosta]

Ok sweet thanks guys, u been very helpful, any thoughts on what I said bout riding my mates z155 compared to mine?

Both running same carby's?

 

[Killpatrickyum]

Yep n feels heaps pokey down low compared to mine

 

[kosta]

Well must be in the different heads. From what I've heard, the 160ho has a bigger inlet valve and different cam grind. This alone would make the power curves quite different.

Your mate might win a 20 meter drag race, but I bet you would win a 100 meter drag.

 

[DHZ_XR8cing]

The 155z has a different gear ratio on the drive gear to the clutch giving them better take off. I much prefer the 155z over the 160ho for acceleration

 

[Killpatrickyum]

Well must be in the different heads. From what I've heard, the 160ho has a bigger inlet valve and different cam grind. This alone would make the power curves quite different.

Your mate might win a 20 meter drag race, but I bet you would win a 100 meter drag.

^^^^^^ Yep , bout sums it up!!

The 155z has a different gear ratio on the drive gear to the clutch giving them better take off. I much prefer the 155z over the 160ho for acceleration

Thanks agan for all your info guys, i got my head round all this now you guys are legends! :thumbup: