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Engine Mod "squish band"

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miobikerboys

Super Veteran
Great idea with the cutting. What cutting method was used to cut round the space? Also, what locking methond did was used to seal the cut up area i.e. welding?

Sounds good, I just wonder if any mechs here know how to do that.
 
X Project

X Project

Super Veteran
The squish band has been an all-time favorite not only for the racers but to motorcycle afficionados like us here... Please don't take this offensive bros' but it seems that the so called Squish Band or "Hi Comp" procedure is kinda something new here... Most of the posts and comments are actually more advance such as CDI, transmission calculation related stuffs and etc... So Im kinda surprise that most of us had overlooked this not too complicated but rather basic idea of modification... Thanks guys...
 
X Project

X Project

Super Veteran
I'm not insinuating something or trying to be a know-it-all forumer but hey, just think of this as an analogy or example- A person can actually change the crankshaft, valve retainers, do portings but would you really believe if he say that he cannot tune a carb? Sorry folks, it's kinda odd... Peace out...
 
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Carol TT

Veteran
the t135 piston seem to be all flat out, dun have the round band on the crown.
even the combustion chamber is not round

heheheee, i dunno how to apply this kind of mod practically on the t135:?



i know wat u mean bro, there's a lot of "know it all" idiots out there



glowplug, u musta be real desperate to do tat :D
 
traxxas-modifier

traxxas-modifier

Super LOLO
Staff member
@glowplug and xproject

did you just removed the head and bottom gasket?

or you also reduced/shave off the height of the cylinder block?
if yes, how many mm did you remove from the cylinder block?
 
V

valentino_rossmann

New Member
hahaha.... it's simple my fren....

just take out the head gasket, trace it onto a thin paper, let see... (a piece of newspaper)

cut the paper exactly like the head gasket, when done..

apply the "liquid gasket" on both side of the new paper gasket... ( this will make sure no leaking :D )

there u have it... just put back all the engine part, and there u go...
:D :D

but in some cases, maybe the space in the combustion chamber a little bit near to the head, ( maybe that person use thin gasket at the Block or bore the base of the head) so a knocking sound can be heard. (knocking with the valve)

in this case, we need to bore some deeper space on the piston for the opening valve when on exhaust process..... (actually t135 already have this space on its piston)

but if we heard a hard knocking sound ( knocking the head) we need to put back thicker gasket until the knocking sounds dissapear...
 
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Carol TT

Veteran
i just tot of how glowplug did it, he replace the top gasket with aluminum foil :lol: :lol: :lol: :lol: :lol:

m i rite ? m i rite ? :lol:
 
G

Glowplug

Veteran
You guess it right ha ha, nope actually, I used three bond liquid gasket. But you must check that the mating surfaces dont have pits or uneven surfaces. The torque is the same.
 
G

Glowplug

Veteran
valentino_rossmann said:
hahaha.... it's simple my fren....


but if we heard a hard knocking sound ( knocking the head) we need to put back thicker gasket until the knocking sounds dissapear...
Click to expand...
Yup you're right there are some knocking, sign of detonation but I just used higher octane fuel from unlead to blaze.
 
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valentino_rossmann

New Member
aluminium foil can't be used.... because when it come hot and then cold, it will squish itself... that probably can tear apart that foil.... then there will be a lot of oil leaking.... 8)
 
G

Glowplug

Veteran
Knocking is a dull metallic sound you often heard inside the block, this due to detonation brought about by some factors such as:
1) High compression - Exceed the stock compression ratio to some extent
2) Timing is too advance
3) Low octane fuel

Caltex gold has higher octane rating is it helps in keeping detonation at bay.

You can easily mistaken the sound as if a piston is hitting valves.
 
chat_master08

chat_master08

Super Veteran
isnt it that there will be knocking if there is something wrong with the valve clearance or lack tune up?? well just want to share... :D
 
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valentino_rossmann

New Member
Glowplug said:
Knocking is a dull metallic sound you often heard inside the block, this due to detonation brought about by some factors such as:
1) High compression - Exceed the stock compression ratio to some extent
[highlight=red]2) Timing is too advance[/highlight]
3) Low octane fuel

Caltex gold has higher octane rating is it helps in keeping detonation at bay.

You can easily mistaken the sound as if a piston is hitting valves.
Click to expand...
what do u mean by timing too advance??
 
D

dehanz

New Member
valentino_rossmann said:
Glowplug said:
Knocking is a dull metallic sound you often heard inside the block, this due to detonation brought about by some factors such as:
1) High compression - Exceed the stock compression ratio to some extent
[highlight=red]2) Timing is too advance[/highlight]
3) Low octane fuel

Caltex gold has higher octane rating is it helps in keeping detonation at bay.

You can easily mistaken the sound as if a piston is hitting valves.
Click to expand...
what do u mean by timing too advance??
Click to expand...
What he mean by that is, the ignition timing is set too advance/early.
 
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