Running boost AND trying to raise the redline? Possible?
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Joined: Oct 2005
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From: Niskayuna, NY, 12309
Running boost AND trying to raise the redline? Possible?
Goal: Safely run 10psi, on a ZC motor, AND raise the redline to about 8500...
The parts:
New rods
New pistons
New valve springs, titanium retainers
will that be enough, or more parts need to be build?
The parts:
New rods
New pistons
New valve springs, titanium retainers
will that be enough, or more parts need to be build?
Honda-Tech Member
Joined: Jun 2004
Posts: 3,061
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From: Plano, TX, USA
Re: Running boost AND trying to raise the redline? Possible? (sohc_turd)
new valvetrain allows higher redline....
if you only put new springs and retainers that will make the redline alot higher...
valves are a plus.
if you only put new springs and retainers that will make the redline alot higher...
valves are a plus.
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Joined: Nov 2002
Posts: 2,303
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From: "It's Miley" Pittsburgh, PA
Re: Running boost AND trying to raise the redline? Possible? (JDM00SI)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM00SI »</TD></TR><TR><TD CLASS="quote">new valvetrain allows higher redline....
if you only put new springs and retainers that will make the redline alot higher...
valves are a plus.</TD></TR></TABLE>
rods, more importantly rod bolts from strechting,
aka spun bearing
if you only put new springs and retainers that will make the redline alot higher...
valves are a plus.</TD></TR></TABLE>
rods, more importantly rod bolts from strechting,
aka spun bearing
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Thread Starter
Junior Member
Joined: Oct 2005
Posts: 507
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From: Niskayuna, NY, 12309
Re: Running boost AND trying to raise the redline? Possible? (sohc_turd)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sohc_turd »</TD></TR><TR><TD CLASS="quote">I don't see why not. turn the boost up if you're going forged internals.</TD></TR></TABLE>
Well i know that the stock block can handle 10psi at its limit, so new pistons/rods will allow me to safely run that... even if i want to go higher boost i dont think my 14b will let me. Hypothetically tho, how much higher would i be able to go?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM00SI »</TD></TR><TR><TD CLASS="quote">new valvetrain allows higher redline....
if you only put new springs and retainers that will make the redline alot higher...
valves are a plus.</TD></TR></TABLE>
I'm looking at JG ZC Dual Valve Springs and Titanium Retainers, for a pretty good price, i heard of one guy, with some basic headwork (clean/port/polish) getting up to 9K without problem
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmfkid250 »</TD></TR><TR><TD CLASS="quote">
rods, more importantly rod bolts from strechting,
aka spun bearing</TD></TR></TABLE>
?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrdthry911 »</TD></TR><TR><TD CLASS="quote">i doubt youll make too much power from 7500-8500 though</TD></TR></TABLE>
Oh i know, i'd just like to have the option of doing so, whenever i upgrade to bigger turbo that will still make boost at that rpm.
Well i know that the stock block can handle 10psi at its limit, so new pistons/rods will allow me to safely run that... even if i want to go higher boost i dont think my 14b will let me. Hypothetically tho, how much higher would i be able to go?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM00SI »</TD></TR><TR><TD CLASS="quote">new valvetrain allows higher redline....
if you only put new springs and retainers that will make the redline alot higher...
valves are a plus.</TD></TR></TABLE>
I'm looking at JG ZC Dual Valve Springs and Titanium Retainers, for a pretty good price, i heard of one guy, with some basic headwork (clean/port/polish) getting up to 9K without problem
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmfkid250 »</TD></TR><TR><TD CLASS="quote">
rods, more importantly rod bolts from strechting,
aka spun bearing</TD></TR></TABLE>
?
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrdthry911 »</TD></TR><TR><TD CLASS="quote">i doubt youll make too much power from 7500-8500 though</TD></TR></TABLE>
Oh i know, i'd just like to have the option of doing so, whenever i upgrade to bigger turbo that will still make boost at that rpm.
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Joined: Nov 2005
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From: Somewhere, FL
Re: Running boost AND trying to raise the redline? Possible? (Vovchandr)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vovchandr »</TD></TR><TR><TD CLASS="quote">Goal: Safely run 10psi, on a ZC motor, AND raise the redline to about 8500...
The parts:
New rods
New pistons
New valve springs, titanium retainers
will that be enough, or more parts need to be build?</TD></TR></TABLE>
Even if this was safe, your head will need to flow enough to produce power that high. This means new cams and possibly port/polish. Remember this: Doubling the RPM's SQUARES the load placed on the bottom end, due to tensile loading, especially when the exhaust valve is open. However, adding more boost will add linear load to the combustion stroke...
The parts:
New rods
New pistons
New valve springs, titanium retainers
will that be enough, or more parts need to be build?</TD></TR></TABLE>
Even if this was safe, your head will need to flow enough to produce power that high. This means new cams and possibly port/polish. Remember this: Doubling the RPM's SQUARES the load placed on the bottom end, due to tensile loading, especially when the exhaust valve is open. However, adding more boost will add linear load to the combustion stroke...
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Joined: Nov 2002
Posts: 2,303
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From: "It's Miley" Pittsburgh, PA
Re: Running boost AND trying to raise the redline? Possible? (cobra2326)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cobra2326 »</TD></TR><TR><TD CLASS="quote">
Even if this was safe, your head will need to flow enough to produce power that high. This means new cams and possibly port/polish. Remember this: Doubling the RPM's SQUARES the load placed on the bottom end, due to tensile loading, especially when the exhaust valve is open. However, adding more boost will add linear load to the combustion stroke...</TD></TR></TABLE>
im not sure if thats right but it sure damn sounds good
Even if this was safe, your head will need to flow enough to produce power that high. This means new cams and possibly port/polish. Remember this: Doubling the RPM's SQUARES the load placed on the bottom end, due to tensile loading, especially when the exhaust valve is open. However, adding more boost will add linear load to the combustion stroke...</TD></TR></TABLE>
im not sure if thats right but it sure damn sounds good
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Joined: Nov 2005
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From: Somewhere, FL
Re: Running boost AND trying to raise the redline? Possible? (fmfkid250)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fmfkid250 »</TD></TR><TR><TD CLASS="quote">im not sure if thats right but it sure damn sounds good </TD></TR></TABLE>
Lol, the part about load being squared is from corky bells book. The exhaust valves and loading part I read on endyns site.
</TD></TR></TABLE>Lol, the part about load being squared is from corky bells book. The exhaust valves and loading part I read on endyns site.
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