Are portflow valvesprings ok for JUN 3??
Thread Starter
Joined: Mar 2003
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From: Panama, Panama
Are portflow valvesprings ok for JUN 3??
are they??
What type of valvespring setup would I need to run??
Portflow intake inner and outer and Portflow exhaust inner and outer springs??
Or will it be ok if I just by portflow intake springs(inner and outer) and pass my stock b16 intake springs to the exhaust side???
I´m a bit confused, so If any of you can help me.. that would be great!
What type of valvespring setup would I need to run??
Portflow intake inner and outer and Portflow exhaust inner and outer springs??
Or will it be ok if I just by portflow intake springs(inner and outer) and pass my stock b16 intake springs to the exhaust side???
I´m a bit confused, so If any of you can help me.. that would be great!
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From: Boise, ID
Re: Are portflow valvesprings ok for JUN 3?? (PanamaVTI)
most reccomend the JUN springs, I'm running some older style Portflows... Appearantly you can't get them any more. E-F1 or Toda would be my next choice. You really need to be careful with high lift/duration cams, they can cause serious issues with the motor.
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From: Flying in my F16..Cleeean Ayyy
Re: Are portflow valvesprings ok for JUN 3?? (advanracing62)
I would recommend running the JUN, some people say they bind, but i and all my friends have had NO issues with the springs binding.
Or you can go with the Toda valvesprings.
Or you can go with the Toda valvesprings.
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From: at last finally back to sweet home, sunny north cali, usa
Re: Are portflow valvesprings ok for JUN 3?? (PanamaVTI)
yellow ITR outters springs + Portflow inners all around would work great with JUN3. spring rate wise it will handle no problem. if you're really concerned you need to check the install height...
Thread Starter
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From: Panama, Panama
Re: Are portflow valvesprings ok for JUN 3?? (GhettoRacer)
So i´ll be ok with portflow.. just have to buy the outer ITR springs...
this yellow ITR springs.. are they the exhaust springs from the ITR or the Intake ones??
this yellow ITR springs.. are they the exhaust springs from the ITR or the Intake ones??
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From: Charlotte, NC, USA
Re: (PanamaVTI)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PanamaVTI »</TD></TR><TR><TD CLASS="quote">Who is Tom?? what are you talking about?
anyways how would ef-1 springs produce more power... _?? no logic to that.</TD></TR></TABLE>
No logic HUH
Well I guess you have never studied valve train then
anyways how would ef-1 springs produce more power... _?? no logic to that.</TD></TR></TABLE>
No logic HUH
Well I guess you have never studied valve train then
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From: Charlotte, NC, USA
Re: (chris@allmotor.net)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chris@allmotor.net »</TD></TR><TR><TD CLASS="quote">any proof of these EF-1 springs being the best?</TD></TR></TABLE>
I have tested these springs
and run them in alot of engines
they dont sag out they make more power
Well Honestly I wont use anything else!!!
I have tested these springs
and run them in alot of engines
they dont sag out they make more power
Well Honestly I wont use anything else!!!
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From: at last finally back to sweet home, sunny north cali, usa
Re: (MAX_CFM)
that says a lot coming from a guy like max_cfm! what is the specs of the springs? max lift, seat pressure, and pressure @ various lifts?
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Re: Are portflow valvesprings ok for JUN 3?? (Spoon1)
ef-1 Single Springs Specs BVTEC
MAX_CFM runs ef-1 single outers.
Here are the specs at 1.350" installed height.
Seat Pressure ~ 65lbs
Open Pressure (12mm lift) ~ 165lbs.
Max Lift ~ 14.5mm
Coils ~ 5.5
Winding Orientation ~ Right Hand
Wire Diameter ~ 3.3mm.
It has smooth and linear pressure through it's motion. The other springs I've tested just don't feel right.
Modified by Rocket at 12:26 AM 8/27/2003
MAX_CFM runs ef-1 single outers.
Here are the specs at 1.350" installed height.
Seat Pressure ~ 65lbs
Open Pressure (12mm lift) ~ 165lbs.
Max Lift ~ 14.5mm
Coils ~ 5.5
Winding Orientation ~ Right Hand
Wire Diameter ~ 3.3mm.
It has smooth and linear pressure through it's motion. The other springs I've tested just don't feel right.
Modified by Rocket at 12:26 AM 8/27/2003
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From: Charlotte, NC, USA
Re: Are portflow valvesprings ok for JUN 3?? (Rocket)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rocket »</TD></TR><TR><TD CLASS="quote"> ef-1 Single Springs Specs BVTEC
MAX_CFM runs ef-1 single outers.
Here are the specs at 1.350" installed height.
Seat Pressure ~ 65lbs
Open Pressure (12mm lift) ~ 165lbs.
Max Lift ~ 14.5mm
Coils ~ 5.5
Winding Orientation ~ Left Hand
Wire Diameter ~ 3.3mm.
It has smooth and linear pressure through it's motion. The other springs I've tested just don't feel right.</TD></TR></TABLE>
Mm to bad I dont run them @ 1.350
MAX_CFM runs ef-1 single outers.
Here are the specs at 1.350" installed height.
Seat Pressure ~ 65lbs
Open Pressure (12mm lift) ~ 165lbs.
Max Lift ~ 14.5mm
Coils ~ 5.5
Winding Orientation ~ Left Hand
Wire Diameter ~ 3.3mm.
It has smooth and linear pressure through it's motion. The other springs I've tested just don't feel right.</TD></TR></TABLE>
Mm to bad I dont run them @ 1.350
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Re: Are portflow valvesprings ok for JUN 3?? (MAX_CFM)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MAX_CFM »</TD></TR><TR><TD CLASS="quote">
Mm to bad I dont run them @ 1.350</TD></TR></TABLE>
Yeah, I am not giving away your secrets.
Mm to bad I dont run them @ 1.350
</TD></TR></TABLE>Yeah, I am not giving away your secrets.
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Re: Are portflow valvesprings ok for JUN 3?? (Spoon1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spoon1 »</TD></TR><TR><TD CLASS="quote">Toda or Jun Springs 
</TD></TR></TABLE>
Can someone send me a sample JUN or Toda spring. I want to see how they compare to the ef-1 springs.
</TD></TR></TABLE>Can someone send me a sample JUN or Toda spring. I want to see how they compare to the ef-1 springs.
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Re: Are portflow valvesprings ok for JUN 3?? (Rocket)
Here are comparison pics: Skunk2 Springs (Left), Stock B16 (Middle), ef-1 Speed Stable (Right)
I would never run the Skunks, the stockers sag, ef-1 are my first choice.
I would never run the Skunks, the stockers sag, ef-1 are my first choice.
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From: Bay Area, CA
Re: Are portflow valvesprings ok for JUN 3?? (GhettoRacer)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GhettoRacer »</TD></TR><TR><TD CLASS="quote">yellow ITR outters springs + Portflow inners all around would work great with JUN3. spring rate wise it will handle no problem. if you're really concerned you need to check the install height...
</TD></TR></TABLE>
are you absolutely sure about this?
</TD></TR></TABLE>
are you absolutely sure about this?