I'm between these:
http://www.treatland.tv/puch-70cc-hi-hi-compression-head-p/puch-hi-comp-head-70cc.htm
http://www.treatland.tv/puch-70cc-puch-70cc-hi-compression-head-p/puch-hi-comp-head-70cc-old.htm
http://www.treatland.tv/puch-70cc-LOW-compression-head-p/puch-low-comp-head-70cc.htm
The high and hi hi seem to be a bit ridiculous, but maybe I'm wrong.
Polini kit was designed to use a stock puch Maxi high torque head not a hi compression head .
If you don't have one post for good used one on buy+sell
I got one, but if I'm looking to upgrade to a bigger carb, should I go to a 70 cc instead?
No it's worse
The piston was designed to fit up into the high torque head
In your mind, why would putting on a larger carburetor necessitate adding a cylinder head cut for a 70cc cylinder onto a 64cc cylinder? Just curious as to the reasoning,
Cut them fins...
Totally badass! Gonna have to suggest that for my friend's build!
HIGH COMP!!!!!!!!!!!!!!!!!!!!!
man i hate forward-facing intakes
Mike Boyd Wrote:
-------------------------------------------------------
> man i hate forward-facing intakes
RAM AIR!!!
Mike Boyd Wrote:
-------------------------------------------------------
> man i hate forward-facing intakes
They probably hate you!
2 strokes do not love ram air!
How can you tell a "Hi Torque Puch Head" from a "regular" Puch head?
> Pat Kelleher Wrote:
> -------------------------------------------------------
> Cut them fins...
>
> http://i742.photobucket.com/albums/xx64/lepattack/0b87c4e3.jpg
With correct intake you don’t have to cut any head fins but slight trim on cylinder fins if you go 4petal
Their painted black
this is the best one, it is actually cut to take the stepped polini head into consideration using a CNC lathe. but its out of stock, sorry.
> Fred Braue Wrote:
> -------------------------------------------------------
>
> why not this one?
Looks to be a smaller combustion chamber with a wider squish band than the 'performance' version .
Put a 'cool' Dio polini 4 pedal reed kit & 'cool' MLM 21mm intake for PHBG and get ripping power with sidebleed estoril... And the $13. reeds surprised me with great idle and all the way through the RPM range but I keep the rrrs down under 9500...
![P09-07-19_19-01[2].jpg](/img/alter/index.php?args=eed74e44866f42c68dbee894282c24a7/fit_to_width=800/src/https://www.mopedarmy.com/forums/file.php?7,file=206562)
![P09-07-19_19-01[1].jpg](/img/alter/index.php?args=728cf2b15a7adedf4e61c917a5d05569/fit_to_width=800/src/https://www.mopedarmy.com/forums/file.php?7,file=206564)
This...
> Fred Braue Wrote:
> -------------------------------------------------------
> why not this one?
the problem with all of the 'off the shelf' heads is that the polini has that damn stepped piston that makes it hard. its designed to work with the stock head but depending on what head you use there can be a 3-4mm squish gap.
another good option is to use the 50cc hi-hi head but space your base gasket way up to get a 1+ mm squish but you will end up running super retarted timing that turds out your low/midrange
Sand the stock maxi high torque head of any type flat, because it will block the decomp hole that the Polini kit still puts in there for some ungodly reason,
Head sanded flat,
Throw the Stock single reed away (or mod it) run 2 stage or other reeds,
15 MM bing around 88-90 jet w 217 atomizer/needle jet, One clip or more rich on the needle with estoril or circuit pipe type pipe and you got over 7 hp down low,
No super expensive clutch, no pull start, no straight cut gears fancy needle bells fancy clutches, no HPI ignition, no nothing needed,
I can’t believe how many people spend $2000 on a e50 nowadays and mine are still running great from over a decade ago and go just as fast or almost just as fast with all these new aftermarket crap parts and I could take my bikes anywhere without exploding!
Want to post in this forum? We'd love to have you join the discussion, but first:
