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Boring a 1.6

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Offline explosivo

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Boring a 1.6
« on: December 17, 2004, 10:55:46 AM »
Ho much can you bore out a 1.6L block before it gets really weak?
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Offline wildgoody

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Re: Boring a 1.6
« Reply #1 on: December 17, 2004, 11:50:55 AM »
.060 is the largest overbore piston
I have seen
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Offline SiKiD_01

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Re: Boring a 1.6
« Reply #2 on: December 17, 2004, 11:12:21 PM »
just off the top of my head, here is australia, they have a big bore kit for the 1.6. they say it bores it out to a 1.8 with new internals and all that.

i can't seem to remember where i got the info from, but i was extremely keen for this as it keeps it all carby and away from electronics and forced induction.

but then i saw the price tag, i think its about $1750.00 AUD. cant remember if it inculdes labour or if it was just for the kit.

couldn't imagine how much better vits would go with more torque.
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Offline explosivo

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Re: Boring a 1.6
« Reply #3 on: December 18, 2004, 12:15:38 AM »
Since we're on the topic of engine internals, is there anywhere that sells stronger pistons/connecting rods/cranks for the Sidekick engine?
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Offline wildgoody

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Re: Boring a 1.6
« Reply #4 on: December 18, 2004, 04:51:55 AM »
Sure, how much do you want to spend ?
a set of rods is $700 and pistons are $500
:o  small change for good stuff, but Zuke
rods are tough, I would only go for pistons,
forged low compression if you want a turbo,
forged 8:1 would be good, the turbo, by over
filling the cylinder, creates an increased CR
effect, at 5 PSI a 8:1 would by an effective
10-11:1 ratio,  so you will need mid range
89 or higher octane fuel.

Wild
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Offline explosivo

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Re: Boring a 1.6
« Reply #5 on: December 18, 2004, 05:26:02 AM »
See, that's the dilema. I don't know if I want a turbo yet, or if I want to increase the CR, have the head shaved a touch, install stainless valves, get the head and intake ported and polished and throw in a cam and header to make a high-compression NA engine and avoid having hot chunks of metal hanging off the engine to drop into water :-/

Turbo actually seems like the more economical option, though :-/

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mudfkr

Re: Boring a 1.6
« Reply #6 on: December 18, 2004, 05:29:36 AM »
Quote
just off the top of my head, here is australia, they have a big bore kit for the 1.6. they say it bores it out to a 1.8 with new internals and all that.

i can't seem to remember where i got the info from, but i was extremely keen for this as it keeps it all carby and away from electronics and forced induction.

but then i saw the price tag, i think its about $1750.00 AUD. cant remember if it inculdes labour or if it was just for the kit.

couldn't imagine how much better vits would go with more torque.


I've seen a kit at http://www.suzisport.com/shop/ that takes it out to 1750 may be thats the one your thinking of ?
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Offline bandit86

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Re: Boring a 1.6
« Reply #7 on: December 18, 2004, 11:18:42 AM »
you may need to talk to a machinist, but you can offset weld the crank.  if you can offset the crank another 1/4 inch, you should be able to use your existing rods(not sure about this on a zuke but alright on most engines) and get a custom piston to make up for the difference.  Should come in cheap enough I think
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Offline wildgoody

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Re: Boring a 1.6
« Reply #8 on: December 18, 2004, 02:13:02 PM »
A quarter inch  :o  that's an increase of
1/2" stroke, that's huge, and a no can do
on the Kick motor, if you want a crank done
I can have one reground to increase the stroke
by 4-5mm for about $200, you supply the crank,
I would recommend a later double counter weight
crank.

An increase of 5mm stroke is 1679cc on a stock
bore of 75mm bore to 78mm and you get 1816cc

Who want's a stroker 1.8L motor ???
I'm taking orders   ;D

Wild
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Offline SiKiD_01

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Re: Boring a 1.6
« Reply #9 on: December 18, 2004, 05:30:23 PM »
did someone mention something about a stroked 1.6?

hmmmmm...... stroker 1.8?

if i get a crank done to give a stroke increase of 5mm, what else will i need? can i use my original pistons rods and whatever else was in the engine?

if i do get a crank made up, will everything else hold up? i dont know too much about this.

thanks
« Last Edit: December 18, 2004, 05:31:34 PM by sikid_01 »
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Offline wildgoody

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Re: Boring a 1.6
« Reply #10 on: December 18, 2004, 05:46:33 PM »
You need larger pistons to get 1.8L out of a 1.6L
motor, the pistons need to compensate for the
longer stroke, or get shorter con rods instead, either
way it's a bunch of new parts to get there, reliable,
ya, as much as any engine can be, welded cranks
and overbore engines are not any weaker than
other engines.

There are several factors that affect how much power
and engine can produce, the length of the crank throw
is a lever, the longer the lever, the greater the torque.

Also the dia. of the piston affects the needed pressure
of the combustion to produce the desired power output,
the larger the piston, the lower the pressure needs to be
to produce a specified HP/ Torque output.

Increase both of these and the power can rise significantly
with the same amount of fuel and air, which will improve
fuel MPG and available power/torque.

Things to think about  when chooseing an engine
for a task, low RPM, high RPM, Torque etc.
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Offline bandit86

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Re: Boring a 1.6
« Reply #11 on: December 19, 2004, 02:09:07 AM »
a stroker will definately increase your bottom enf torque.  the 15% displacement increase should increase your torque numbers by same.
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Offline bandit86

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Re: Boring a 1.6
« Reply #12 on: December 19, 2004, 05:25:03 AM »
What is the bore and stroke of a 1.6?
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Offline idaholwb

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Re: Boring a 1.6
« Reply #13 on: December 19, 2004, 09:49:50 AM »
 How about a 1.6 based 3.0?? I talked with a local machine shop lately about upsizing dramatically. It seems as though it can be done, a lot of custom machining and custom head gasket and pistons. The cost is pretty high, though. I was told about $3,000 for the completed long block! But you don't have to adapt another motor or trans into your truck. The power is supposed to be about 220hp with like 230-250lb-ft of torque! Pretty cool, huh?
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Offline SiKiD_01

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Re: Boring a 1.6
« Reply #14 on: December 19, 2004, 01:40:40 PM »
*drool*

why does everything have to be so bloody expensive?

i spose money is everything and everything cost money... :(
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