My friend sent his p28 to get reprogrammed and told the guy to set the vtec crossover at 5300 but you dont see or hear anything happen until about 5600 -5700. We callled him and he checked it and said he did. He said it is right but u dont really hear it until 5600. Is he just saying that cause he doesnt want him to send it back so he has to do more work or is this true?

 

my vtec is set at 5500 rpm om my vafc and on my tach vtec doesn't hit until 5700 rpm.

 

the stock tach is off by a few hundred rpm.

 

cause i dont see anything a feel or a sound tell 5700 which is 500 rpms later that alot

 

my VAFC shows 8400 when my tach shows 9000

 

Stock tach is off, sometimes by alot. mine tells me vtec is 6200, fuel cut off is 9100.