about to purchase a NEW cylinder head with type r valves. unfortunatly i have been informed that the stock type R valves are weaker and Often brake. Is this common or has anyone ever run into problems running them with springs and retainers on a high boost application? the motor will only ever see <9k rpms... now i know i should throw some ss turds in there but the head is new and dont feel like spending additional 300 dollars on somethign that i may not have too.

 

you heard wrong

 

ive been running mine for the past season...wokring fine for me up to 8k w/ dual valve springs for increased seat pressure

 

I also think that you will be just fine.

 

I believe you were rather misinformed..

 

Matter of fact i rarely shifted under 9200 rpms. . . Stock ITR head.

 

that is BS

 

what about the b16b2 valves?

 

so finally, which valves would you recommend as the most safe-appropriate for a b18 GSR turbo kit (lets say for around 350-400whp)??
what retainers also and what springs??
would typer r double springs and typer valves be ok?? ( i am talking using them with GSR cams)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teri_vti &raquo;</TD></TR><TR><TD CLASS="quote">so finally, which valves would you recommend as the most safe-appropriate for a b18 GSR turbo kit (lets say for around 350-400whp)??
what retainers also and what springs??
would typer r double springs and typer valves be ok?? ( i am talking using them with GSR cams)</TD></TR></TABLE>

Power has nothing to do with it. Think about RPM's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Flr Power &raquo;</TD></TR><TR><TD CLASS="quote">Power has nothing to do with it. Think about RPM's.</TD></TR></TABLE>
ya but seat pressure still has to be strong enough to not open during hi boost~

 

i use all my stock type r parts in the head. no issues for the last 3 years. shifting at 8500.

 

thanks for all the replies .. I do believe my concern is valid because the type r valves are infact smaller in diameter (at some point on the valve) on the one side of the head. I too already have dual springs that will be adding to the seat pressure. I know Honda typically would not compromise the integrity of a part to save a few oz.'s but im sure honda did not factor in the additional stress caused by an aftermarket Heavy duty spring and added pressure levels of a turbo/potential problems caused by it. No one wants to burn a built motor because they saved 300 dollars by not getting a set of valves. I know what I should do ideally . but also curious if running these stockers are a feasible option

a few people say that they have not experienced any problems .. have you heard of people who have?


Modified by no mods at 6:28 AM 10/25/2005

 

i think i ll be rev around 8800....
so is it safe to use typer valves and dual springs ?
the pressure wont exceed 15psi
i want something safe and reliable...i dont care paying something more now if this means i wont blow the head