VVIS controller 850

jantt · Post by **jantt** » 25 Jan 2016, 22:12

correct me if I am wrong.

Have read somewhere that injectors deliver 1 bhp pr 5 cc http://forums.t5d5.org/topic/4798-injector-upgrades/

My car have 200 cc injectors. Then it will be 200 cc : 5 cc = 40 bhp pr injector. Then 5 injectors will then max deliver 200 bhp. Is that right ?

I have now just around 200 bhp in my car and the standard injectors can`t deliver more. Will bigger injectors then deliver more bhp ?

Post by **precopster** » 26 Jan 2016, 06:14

They will deliver more fuel but because no more air will enter the engine to create that perfect 14 to 1 air to fuel ratio the car will run rich and foul spark plugs and create O2 codes. Even removing the air cleaner or putting in a filter pod won't increase air intake because the engine only produces so much vacuum.

A car with an increase increase in turbo size creates more "vacuum" which is actually the reverse of vacuum and is known as boost and will be paired with bigger injectors and an ECU that can handle the extra demands.

As Erik stated there really are no ECU changes that can benefit a non turbo.

jantt · Post by **jantt** » 26 Jan 2016, 06:33

Don`t it help with the bigger air intake I made ?
I did buy a chipbox, but it gave no effect, but could it be because the injectors have reached their max ?
The chipbox is connected to the MAP and tell it to deliver more air and fuel, but injectors can`t deliver more fuel.

Post by **precopster** » 26 Jan 2016, 12:55

You're sliding down that slippery path of buying gimmicks for extra performance

As I stated the lack of forced induction will make the car run rich with bigger injectors. Go ahead and waste your money if it makes you feel as though you have a modified car. A result on the dyno will be zero or close to it.

jantt · Post by **jantt** » 26 Jan 2016, 13:31

You`re right that I could waste a lot of money. Wish that I had a turbo in the car. It will be a turbo next time I buy a car.
See if I can find some used injectors at work just for trying.
The car is pretty quick now with the things I have done.

razorx · Post by **razorx** » 27 Apr 2016, 11:50

Hello

For some reason I missed a lot of messages from this site. My apologies for my late response.

The chip I used in the "Yitsbox" is not being produced anymore. But it seems that there are still people interested in this "Yitsbox" .
With an amount of 10 to 20 interested people, I can make a new, mircocontroller based version.

VVIS controller 850

Re: VVIS controller 850