94 Vti-R running cool (not in a good way)

[Mikecivic78]

DC2 Vti-R has 2 switchover points, Vtec switchover and dual stage intake manifold switchover.
Correct me if I'm wrong (i got this from a honda brochure) but the VTEC switchover is approx 4400rpm and the manifld switches to a short tract from 5500 onwards.

Ive been shopping around for a dc2 vti-r and when I test drove one the other day, i noticed that it was running cold due to a faulty thermostat. It took it over 20 minutes to reach the halfway temp. mark and i could feel that it was inhibiting the correct operation of the VTEC. This is a common problem with pre-facelift ('93-97) VTI-Rs.

[T-onedc2]

Secondary butterflies open at 5800.
See here, page 2 from Honda brochure:
http://www.ozhonda.com/forum/showthr...=107712&page=2

[zropts]

hmm yeah well i got a new mugen thermostat and used it for over 6000km... now (recently) its running cool when my engine has already warmed up... like 20% on the reading... what could be the prob? i don't suppose the thermostat has gone on me!?