Toda Valve Springs Life Time with Skunk2 Pro Series stg 2

Reply Subscribe

Thread Tools

Search this Thread

Sep 12, 2007 | 06:30 AM

jt-sport

Thread Starter

Honda-Tech Member

Joined: Mar 2002

Posts: 807

Likes: 0

From: Earth, indonesia

Toda Valve Springs Life Time with Skunk2 Pro Series stg 2

i've already use this combination since december 2005, this car was race only motor... and have already done the duty for arround 7-8 races...

but from the last race event this motor wasnt working normal.. the power was lost when i touch 8.200 rpm.
i've check everythin, compression pressure is normal, afr is normal, electrical normal, no missed fire.. but the powerband was totally lost above 8.200rpm..

so i assumed that it was valve floating problem, i dont know to judge valve springs life because i dont have any spring tester...

i conclude that it was the problem of valve spring, since toda only recomend 12.5mm valve lift for it springs, but skunk2 pro serries was 12.9mm

any comment suggestion or anything?????
is it true valve springs trouble???
how long is you toda valve springs life with huge cam above 12.9mm lift????

Sep 12, 2007 | 09:16 AM

bambam

Honda-Tech Member

Joined: May 2003

Posts: 3,195

Likes: 17

From: Norwich, CT, USA

Re: Toda Valve Springs Life Time with Skunk2 Pro Series stg 2 (jt-sport)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jt-sport »</TD></TR><TR><TD CLASS="quote">i've already use this combination since december 2005, this car was race only motor... and have already done the duty for arround 7-8 races...

but from the last race event this motor wasnt working normal.. the power was lost when i touch 8.200 rpm.
i've check everythin, compression pressure is normal, afr is normal, electrical normal, no missed fire.. but the powerband was totally lost above 8.200rpm..

so i assumed that it was valve floating problem, i dont know to judge valve springs life because i dont have any spring tester...

i conclude that it was the problem of valve spring, since toda only recomend 12.5mm valve lift for it springs, but skunk2 pro serries was 12.9mm

any comment suggestion or anything?????
is it true valve springs trouble???
how long is you toda valve springs life with huge cam above 12.9mm lift????
</TD></TR></TABLE>

Is your problem happening consistently at 8200 rpm? I doubt the spring would be able to differentiate 8200 rpm from say....8000 rpm. Meaning, if it happens at the same rpm all the time, then I doubt it's the springs.