how high are you reving your itr valves to?
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OG triple OG
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From: Norcal
how high are you reving your itr valves to?
just curious how high you guys are reving your motors to that have stock itr valves. ive been taking the car to 9k because thats when the power stops but im sure there are some guys gonig higher.
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OG triple OG
Joined: Mar 2002
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From: Norcal
Re: how high are you reving your itr valves to? (NATURAL)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NATURAL »</TD></TR><TR><TD CLASS="quote">search noob.... 
9200-9300 and thats pushing it...</TD></TR></TABLE>
lol my bad
9200-9300 and thats pushing it...</TD></TR></TABLE>
lol my bad
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From: downunder, New Zealand
Re: how high are you reving your itr valves to? (clayton bigsby)
There have been a number of documented failures of ITR inlet valves when taken over 9200 rpm
In the UK where the FIA class required standard valves in modified production road race cars this was the number one reason for engine failure .
When I was at Toda Japan their head engineer said exactly the same thing and recomended oem,non ITR inlets if going over 9200 in a road race engine .
I think Toda lists non ITR vinlet valves in the spec sheets fro toda b's, c's and killers
In the UK where the FIA class required standard valves in modified production road race cars this was the number one reason for engine failure .
When I was at Toda Japan their head engineer said exactly the same thing and recomended oem,non ITR inlets if going over 9200 in a road race engine .
I think Toda lists non ITR vinlet valves in the spec sheets fro toda b's, c's and killers
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From: South Florida
Re: how high are you reving your itr valves to? (BigAl)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BigAl »</TD></TR><TR><TD CLASS="quote">There have been a number of documented failures of ITR inlet valves when taken over 9200 rpm
In the UK where the FIA class required standard valves in modified production road race cars this was the number one reason for engine failure .
When I was at Toda Japan their head engineer said exactly the same thing and recomended oem,non ITR inlets if going over 9200 in a road race engine .
I think Toda lists non ITR vinlet valves in the spec sheets fro toda b's, c's and killers </TD></TR></TABLE>
Never heard stock itr vavles breaking before.
In the UK where the FIA class required standard valves in modified production road race cars this was the number one reason for engine failure .
When I was at Toda Japan their head engineer said exactly the same thing and recomended oem,non ITR inlets if going over 9200 in a road race engine .
I think Toda lists non ITR vinlet valves in the spec sheets fro toda b's, c's and killers </TD></TR></TABLE>
Never heard stock itr vavles breaking before.
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From: western, PA
Re: how high are you reving your itr valves to? (PURPLETERROR aka BIGMATT)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PURPLETERROR aka BIGMATT »</TD></TR><TR><TD CLASS="quote">10.5k on stock b16a valves for 3 years not reccomended but ive done it numerous times. Oem valves are pretty strong</TD></TR></TABLE>
Im pretty sure that b16 valves are ok, its the ITRs in question.
Im pretty sure that b16 valves are ok, its the ITRs in question.
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From: Greenville, SC
Re: how high are you reving your itr valves to? (Hella_JDM)
My motor is running stock ITR valves. It has seen 10,100 rpms on the dyno and power had not fallen off yet. On the street I keep my rev limiter on 9200 rpms and no problems. This motor has also seen 8 full HPDE track days with many trips to 10,000rpms on downshifts. ITR valves = 
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From: Nova Scotia ,Canada
Re: how high are you reving your itr valves to? (Bradstard)
I have had my b16a to 9300rpm. just curious what you guys are using for cams to make power to 10000 rpm or are you just revving the hell out of it?
I have had USDM 97 ITR , Jun 2 , M22 and Toda B camshafts , none of which seem to make power past 8400rpm
??????
I have had USDM 97 ITR , Jun 2 , M22 and Toda B camshafts , none of which seem to make power past 8400rpm
??????
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From: Vancouver, WA
Re: how high are you reving your itr valves to? (hondaboyB16)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaboyB16 »</TD></TR><TR><TD CLASS="quote">I have had my b16a to 9300rpm. just curious what you guys are using for cams to make power to 10000 rpm or are you just revving the hell out of it?
I have had USDM 97 ITR , Jun 2 , M22 and Toda B camshafts , none of which seem to make power past 8400rpm
??????</TD></TR></TABLE>
Judging by your signature your motor cant support the airflow needed for high rpm.
I have had USDM 97 ITR , Jun 2 , M22 and Toda B camshafts , none of which seem to make power past 8400rpm
??????</TD></TR></TABLE>
Judging by your signature your motor cant support the airflow needed for high rpm.
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From: South Florida
Re: how high are you reving your itr valves to? (2k.civic.si)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2k.civic.si »</TD></TR><TR><TD CLASS="quote">so the non-r valves are stronger? why is this?</TD></TR></TABLE>
my guess would be becuse they are not hollow stem like itr valves.
my guess would be becuse they are not hollow stem like itr valves.
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From: rouyn noranda, quebec/canada
Re: how high are you reving your itr valves to? (THEUSED)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by THEUSED »</TD></TR><TR><TD CLASS="quote">Judging by your signature your motor cant support the airflow needed for high rpm.</TD></TR></TABLE>
x2
x2
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From: montebello, ca, U.S.A
Re: how high are you reving your itr valves to? (flesh199)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flesh199 »</TD></TR><TR><TD CLASS="quote">
x2 </TD></TR></TABLE>
x3
x2
</TD></TR></TABLE>x3
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From: Toronto, On, Canada
Re: how high are you reving your itr valves to? (Hella_JDM)
why do you think the valve is the limitation?
it's not like you're swapping to Titanium valves and saving a whole ton on valvetrain weight for rpm bounce. what do you think is the weight difference between ITR OEM intake valves and say a good stainless intake valve?
the valvespring is much more important since 90% of the problem is when coil bind occurs.
what was your reasoning to be concerned about ITR valves preventing you to rev to say 9500-10,000 rpm? I'm just curious.
it's not like you're swapping to Titanium valves and saving a whole ton on valvetrain weight for rpm bounce. what do you think is the weight difference between ITR OEM intake valves and say a good stainless intake valve?
the valvespring is much more important since 90% of the problem is when coil bind occurs.
what was your reasoning to be concerned about ITR valves preventing you to rev to say 9500-10,000 rpm? I'm just curious.
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From: South Florida
Re: how high are you reving your itr valves to? (Michael Delaney)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Michael Delaney »</TD></TR><TR><TD CLASS="quote">why do you think the valve is the limitation?
it's not like you're swapping to Titanium valves and saving a whole ton on valvetrain weight for rpm bounce. what do you think is the weight difference between ITR OEM intake valves and say a good stainless intake valve?
the valvespring is much more important since 90% of the problem is when coil bind occurs.
what was your reasoning to be concerned about ITR valves preventing you to rev to say 9500-10,000 rpm? I'm just curious.</TD></TR></TABLE>
Not true. LOOK HERE Ferreas Hollow stem valves boasts to be 20% lighter than SS valves. which in itself is already alot. titanium is even lighter according to this thread.. thats alot of weight savings. and after further research I did confirm that Ti valves are banned from certain classes. thats usually an indication that there is an advantage to running them
it's not like you're swapping to Titanium valves and saving a whole ton on valvetrain weight for rpm bounce. what do you think is the weight difference between ITR OEM intake valves and say a good stainless intake valve?
the valvespring is much more important since 90% of the problem is when coil bind occurs.
what was your reasoning to be concerned about ITR valves preventing you to rev to say 9500-10,000 rpm? I'm just curious.</TD></TR></TABLE>
Not true. LOOK HERE Ferreas Hollow stem valves boasts to be 20% lighter than SS valves. which in itself is already alot. titanium is even lighter according to this thread.. thats alot of weight savings. and after further research I did confirm that Ti valves are banned from certain classes. thats usually an indication that there is an advantage to running them
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From: CENTRAL CA, CA, US
Re: how high are you reving your itr valves to? (Boostage)
« Re: how high are you reving your itr valves to? (Bradstard) « » 5:49 PM 12/30/2005 Reply Edit
--------------------------------------------------------------------------------
I have had my b16a to 9300rpm. just curious what you guys are using for cams to make power to 10000 rpm or are you just revving the hell out of it?
I have had USDM 97 ITR , Jun 2 , M22 and Toda B camshafts , none of which seem to make power past 8400rpm
??????
--------------------------------------------------------------------------------
180 whp N/A B16
(stock head,airbox,TB,intake manifold)
hcp would solve that problem.
--------------------------------------------------------------------------------
I have had my b16a to 9300rpm. just curious what you guys are using for cams to make power to 10000 rpm or are you just revving the hell out of it?
I have had USDM 97 ITR , Jun 2 , M22 and Toda B camshafts , none of which seem to make power past 8400rpm
??????
--------------------------------------------------------------------------------
180 whp N/A B16
(stock head,airbox,TB,intake manifold)
hcp would solve that problem.
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Re: how high are you reving your itr valves to? (delsolb16)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hamstr323 »</TD></TR><TR><TD CLASS="quote">
x3</TD></TR></TABLE>
ouch!! thats 6 TIMES!!!!
x3</TD></TR></TABLE>
ouch!! thats 6 TIMES!!!!
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