Honda makes forged 12.5:1 Compression pistons for our cars!!!
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Honda makes forged 12.5:1 Compression pistons for our cars!!!
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I doubt it..we have domed heads..the pistons are the same..just domed..they should fit no problem..but they may not leave enoughclwarance for an aftermarket cam..
He was referring to building up our bottom end, which I agree on, you'd prolly need a new crank and rods at the very least. Can't just up compression that much without building up the rest of the motor.
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sure you can..the OEM rods aren't that weak.. it's not under any boost so it's not a problem...the GX uses the same rods and crank as we do. heads a re a little different ..but cumbustion chambers are the same
Ok, so say we put these in our cars, what kind of gains are we talking about here?? I have a LX so my compression is pretty low, so what would the gains be?? and would they be worth it??
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in a perfect world, high compression and boost is most optimal but, since we have to deal with alot of variables, low compression and boost is most reliable and practical.
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Quote
[hr]Originally posted by: CrazyCakes
stupid question, is high or low compression better for turbo/n20[IMG]i/expressions/face-icon-small-confused.gif[/IMG][hr]
[hr]Originally posted by: CrazyCakes
stupid question, is high or low compression better for turbo/n20[IMG]i/expressions/face-icon-small-confused.gif[/IMG][hr]
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if you're going to boost your car or run N2O lower compression is better.or keep the stock compression but get forged pistons for proper heat dissipation..
the 12.5:1 pistons might not be too beneficial, Ignition may have to be retarded to run them properly in which case gains may not be beneficial...11.5:1 is about the highest one can go without some serious ECU programming...
I can get 4 pistons made for $1400CAD at 11:5:1 compression... $800 fr the pistons $600 for the CNC program to make them. After their made it's only $800CAD ($500us) for the pistons as long as you have the job number (CNC program)
the 12.5:1 pistons might not be too beneficial, Ignition may have to be retarded to run them properly in which case gains may not be beneficial...11.5:1 is about the highest one can go without some serious ECU programming...
I can get 4 pistons made for $1400CAD at 11:5:1 compression... $800 fr the pistons $600 for the CNC program to make them. After their made it's only $800CAD ($500us) for the pistons as long as you have the job number (CNC program)
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also what the hizell is honda thinkin these days, that 2003 gx is not only natural gas powered but it has SULEV....next thing you know there wont be any emmsions at all.
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Quote
[hr]Originally posted by: C2i0v0i1c
also what the hizell is honda thinkin these days, that 2003 gx is not only natural gas powered but it has SULEV....next thing you know there wont be any emmsions at all.[hr]
[hr]Originally posted by: C2i0v0i1c
also what the hizell is honda thinkin these days, that 2003 gx is not only natural gas powered but it has SULEV....next thing you know there wont be any emmsions at all.[hr]

Wish there was some balance between the two - high performance, and low emissions - and I mean like ***** out 400 monster block power, but still won't create smog...oh well...gotta tip the scales to some degree right?
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well honda makes a 240 HP 2.0L ULEV [IMG]i/expressions/face-icon-small-smile.gif[/IMG].. imagine if they used that technology to make a 3.0L V6
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Yup S2k is ULEV. [IMG]i/expressions/face-icon-small-smile.gif[/IMG]
Changing the pistons works IF the head/block on the GX car is the exact same as the head/block on the 7th gen civic.
No, you don't need new rods or crank, as the rods and crank on your cars are forged and can probably take quite a bit of HP before ever having to change them. [IMG]i/expressions/face-icon-small-smile.gif[/IMG]
But there are many more clearances to measure, like piston to wall, piston to valve, etc, etc. So it may be more than just changing the pistons.
Changing the pistons works IF the head/block on the GX car is the exact same as the head/block on the 7th gen civic.
No, you don't need new rods or crank, as the rods and crank on your cars are forged and can probably take quite a bit of HP before ever having to change them. [IMG]i/expressions/face-icon-small-smile.gif[/IMG]
But there are many more clearances to measure, like piston to wall, piston to valve, etc, etc. So it may be more than just changing the pistons.
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I called Honda in NY for this..the Blocks, Rods, cranks, combustion chambers and valves are all the same...the GX's have different cams and completely different injectors..the Pistons would fit no problem..but the compression is too high to be streetable..and without new cams, fuel map, Ignition system..it would probbaly hinder power...if their swapped in while retaining the stock ECU..Ignition will be retarded and power will be lost..
Quote
[hr]Originally posted by: TwilightX
lol - far be it from a company being environmentally smart about their engineering

Wish there was some balance between the two - high performance, and low emissions - and I mean like ***** out 400 monster block power, but still won't create smog...oh well...gotta tip the scales to some degree right?
[hr]
[hr]Originally posted by: TwilightX
Quote
[hr]Originally posted by: C2i0v0i1c
also what the hizell is honda thinkin these days, that 2003 gx is not only natural gas powered but it has SULEV....next thing you know there wont be any emmsions at all.[hr]
[hr]Originally posted by: C2i0v0i1c
also what the hizell is honda thinkin these days, that 2003 gx is not only natural gas powered but it has SULEV....next thing you know there wont be any emmsions at all.[hr]

Wish there was some balance between the two - high performance, and low emissions - and I mean like ***** out 400 monster block power, but still won't create smog...oh well...gotta tip the scales to some degree right?
[hr]
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