Disruptor565
New Member
Hi
First of im still a noob when it comes to electronics the only time i can build something is when i have the diagram and components , i dont have a idea how to build something from scatch .
We did a conversion on a car and changed the motor form a 4 cyl 2.0l to a 2.5 v6 now my rev counter is over reading . the response i got on the other forum was this , but no one seems to know how to do it . all i know is that the rev counter is digital and the signal doesnt come from the coilpack , at idle its 25Hz and above 2500 rpm its 125Hz . so before the conversion the car would sit at 3500 rpm in 5th gear at 120km/h now its just over 5500 rpm at the same speed .
"Lol.....its bound to be wrong, you had a 4 pot giving 2 pulses per revolution and now you have a V6 giving 3 pulses per revolution.
The rev counter will be for a 4 pot so you should get about a 50% over read!
An option might be to knock up a circuit to modify the signal by dividing by 1.5. "
I hope i can get some info here on how to do this .
Thank You
First of im still a noob when it comes to electronics the only time i can build something is when i have the diagram and components , i dont have a idea how to build something from scatch .
We did a conversion on a car and changed the motor form a 4 cyl 2.0l to a 2.5 v6 now my rev counter is over reading . the response i got on the other forum was this , but no one seems to know how to do it . all i know is that the rev counter is digital and the signal doesnt come from the coilpack , at idle its 25Hz and above 2500 rpm its 125Hz . so before the conversion the car would sit at 3500 rpm in 5th gear at 120km/h now its just over 5500 rpm at the same speed .
"Lol.....its bound to be wrong, you had a 4 pot giving 2 pulses per revolution and now you have a V6 giving 3 pulses per revolution.
The rev counter will be for a 4 pot so you should get about a 50% over read!
An option might be to knock up a circuit to modify the signal by dividing by 1.5. "
I hope i can get some info here on how to do this .
Thank You