i have a 93 civic dx coupe, i swapped in an ex gauge cluster, and did a gsr swap. my first time out, i hit the rev limiter at 6500 rpm, (knowing that was going to happen cuz it didn't seem accurate) vtec was working with no problem, no cels. can the sohc tach not keep up, or is it malfunctioning? any thoughts?
ex tachometer gsr swap... it's not accurate
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killercannible
Senior Member
Does it sound like it is reving higher than what the tach shows or does the engine correspond with the tach. You should be able to match the sound with an rpm.
it is definately reving faster than it shows. vtec switch is audible, and then rev limiter. if i 'shift by ear', rather than checking the gauge, it's fine. i did a second gear pull, just looking at the tach, and hit the rev limiter, the tach showed 6500 rpm, i know it was at least 8k. it must be a defunct tach, but lower rpms and idle, it is accurate, and cruising on the highway it's fine. i don't know anyone with an eg/gsr swap, much less someone who's using the stock cluster. i'm thinking of getting another one if someone can confirm it's accurate using an ex or similar cluster with a b-series swap.
stedscivic
Senior Member
did you have the cluster in before the swap? if so did it work fine with the other engine? i have an ex with a b18c and it is right on with no problems
at low rpms, it seems to be accurate. idle is at 850, i cruise 75mph on the interstate and i'm just under 4k. but, if i downshift and go, it doesn't keep up. i'm going to put my old dash tach back in and see if it's more accurate, then i may just run my dx gauges (no tach) and use my dash tach, even though it's kinda ricey
