Vtec Engagement + Turbo

**kerim** · 11-10-2007 10:41 PM

i recently turboed my b16/b20 civic, currently untuned, but ever since its been turboed, vtec doesnt kick in, like i rev out to like 7k RPM but no vtec is engaged, is that normal or is it supposed to kick in, or is this just due to the fact that its untuned and will changed once tuned

thanks
kerim

**tRipitaka** · 11-10-2007 10:42 PM

why would u rev out to 7k untuned ?

**kerim** · 11-10-2007 10:42 PM

testing it out

**dc2dc2dc2** · 11-10-2007 10:44 PM

bad idea.

**kerim** · 11-10-2007 10:48 PM

ive been driving for about a month untuned so far, kepping in vaccum most times, but boosting occasionally, seems fine so far

anyway back on topic

**fatboyz39** · 11-10-2007 11:05 PM

seems fine then next thnig kaboomm....

But vtec should be working regardless, vtec works on throttle i.e >50%?

**kerim** · 11-10-2007 11:05 PM

wat would be the cause of it not engaging?

**IEVAQ8** · 11-10-2007 11:53 PM

are you using any sort of cmputer???
maybe it isnt vtec compatible?????

**kerim** · 11-10-2007 11:55 PM

Originally Posted by IEVAQ8

are you using any sort of cmputer???
maybe it isnt vtec compatible?????

unichip, i dont think that is the problem, as vtec was engaging before the turbo conversion

**Limbo** · 12-10-2007 01:20 AM

i know what it is. You have to rem that you've prob took the pickup of the engine oil to feed the turbo. You've prob dropped the oil pressure of the engine, and maybe its too low to engage the vtec.