Supertech Valves are proven durable and to perform in race engines, but are they just as safe to run in a daily driven motor? Its usually safe to assume that any component strong enough to handle race type conditions should be more than enough for a motor which will not see such extremes on every start of the engine.

Does anyone have any opinions whether or not its recommended to run Supertech Valves on a DD? Is durability and longevity a factor at all in comparison to OEM Honda valves, or will they last as long, if not longer, than OEM? Are there any concerns with using Supertech on an everyday commuter?

 

I run them in my DD.... 145mi a day 5 days a week... no problems here

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrueNorthStar &raquo;</TD></TR><TR><TD CLASS="quote">I run them in my DD.... 145mi a day 5 days a week... no problems here</TD></TR></TABLE>

Flat or dish valves, if you dont mind me asking?

 

flat, revved to 9500 @ track. &lt;9000 a couple of times a day something about freeway on-ramps hahaha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrueNorthStar &raquo;</TD></TR><TR><TD CLASS="quote">flat, revved to 9500 @ track. &lt;9000 a couple of times a day something about freeway on-ramps hahaha</TD></TR></TABLE>

Haha, cant agree with you more on the freeway on ramps. How many total miles on the valves so far and what valvetrain supports them? Or whats your general setup on your daily? Anything precautions or things to watch out for when using these valves?

 

I would say I've got maybe 4000miles on them.

It's a complete supertech setup in a portflow GSR head. w/S2 Pro1's
S2 Intake Mani
AEBS 68mm tb
AEM 3" CAI
Stock sleeved GSR block 81.5mm bore
81.5 CP pistons (11.7-12.0/1 comp)
Manley Rods
ACL bearings
ITR oil pump
Rage tri-y header

Made 228hp on a dynapack

CTR tranny w/4.9 fd + LS 5th

 

I'm running ST valves in my B20/VTEC, daily driven with no problems for a little over a month now...you shouldn't have any problems running them.

 

TrueNorthStar and civicious - Thanks for your input. I really appreciate it.,

Now can anyone comment on the flow vs. OEM ITR valves? Is there any added benefit with the Supertech Valves besides weight?

 

They are one piece.

Most valves are 2-3 pieces.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EnjoyTheRideDC2 &raquo;</TD></TR><TR><TD CLASS="quote">TrueNorthStar and civicious - Thanks for your input. I really appreciate it.,

Now can anyone comment on the flow vs. OEM ITR valves? Is there any added benefit with the Supertech Valves besides weight?

</TD></TR></TABLE>

only the BNC valve is double back cut on the intake side....so yes flow would be greater.

 

Supertech valves for BVTEC motors are very nice.

The tips have a hardened martensitic wafer design to prevent mushrooming. Dimensional tolerance is very tight. As part of a quality head re-fresh (head cleaning, VJ, proper spring tension, etc) will work flawlessly for a very long time.

Flow-wise back cuts is not as critical as most people think, there are other factors the influnce flow more, just consult with your cylinder head professional such as RLZEngineering. Just depends on the "whole" package you are designing for your air stream.

 

A customers ITR broke a valve head so I had a VJ done and replaced the valves with Supertech BNC flats, as well as new valve seals, and new OEM springs. Also used a Mugen HG (customers choice). Car felt a lot better partial throttle street driving. Didn't get to ride on it out on track, but he was very happy. He put around 15k on it at the time it was totaled.

 

TrueNorthStar, RedZone, Master of the Universe, Aquafina - Thanks for your responses!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">A customers ITR broke a valve head so I had a VJ done and replaced the valves with Supertech BNC flats, as well as new valve seals, and new OEM springs. Also used a Mugen HG (customers choice). Car felt a lot better partial throttle street driving. Didn't get to ride on it out on track, but he was very happy. He put around 15k on it at the time it was totaled.</TD></TR></TABLE>

Awesome, I appreciate that information. Gives me a better idea what to expect in terms of longevity. I noticed that these were flat valves which were installed in the head. Would the dished valves give an identical feel of performace or do the flat faced valves have a measureable advantage?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EnjoyTheRideDC2 &raquo;</TD></TR><TR><TD CLASS="quote">TrueNorthStar, RedZone, Master of the Universe, Aquafina - Thanks for your responses!

Awesome, I appreciate that information. Gives me a better idea what to expect in terms of longevity. I noticed that these were flat valves which were installed in the head. Would the dished valves give an identical feel of performace or do the flat faced valves have a measureable advantage?</TD></TR></TABLE>

Flat face is good for someone who is trying to raise the CR without changing pistons, but the valve weighs more then a dished valve. It will very from engine setup to engine setup, but it is hard to say if there is an advantage unless we are talking about to identical engine's.

 

Based on how it felt when it ran good pre-broke valve to how it ran after w/ HG and valves (VJ wasn't anything special), the added compression made it real nice for cruising around. Compression was bumped up about .6:1 so with just the valves I'm not sure how it would do. I don't think you'll have any problems with longevity.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RedZone &raquo;</TD></TR><TR><TD CLASS="quote">

Flat face is good for someone who is trying to raise the CR without changing pistons, but the valve weighs more then a dished valve. It will very from engine setup to engine setup, but it is hard to say if there is an advantage unless we are talking about to identical engine's.</TD></TR></TABLE>

I understand that each engine is different, I was more referring to using either or on the same engine. Mainly what i'm trying to figure out is will there be an advatage to running the flat faced valves over the dished ones on my engine. What I've been told is the flat face will bump up my compression but is heavier so the bump in compression is not worth the added weight in comparison to the dish valve.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">Based on how it felt when it ran good pre-broke valve to how it ran after w/ HG and valves (VJ wasn't anything special), the added compression made it real nice for cruising around. Compression was bumped up about .6:1 so with just the valves I'm not sure how it would do. I don't think you'll have any problems with longevity.</TD></TR></TABLE>

Think they might wear out OEM guides or not?

 

No.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Aquafina &raquo;</TD></TR><TR><TD CLASS="quote">No.</TD></TR></TABLE>

why not?!? if your not beating on the motor, i dont see why its bad, **** i got Omni flat faced valves and i drive about 80-100 miles a day and got about 4000 miles on em total racing and dd, and still works great!

 

Read the whole thread.