I have e-mailed precision and they donīt know what products theuy sell or dont want to give out or what ever reason.. their website does not say anything.. Mybe someone knows who to contact?

What i am looking for is what peak and hold ratio the 1600 cc honda style Precision injectors have..

Most peak and hold injectors are 4-1. They need 4 amps to open and 1 amp to stay open. That is why they are called "peak and hold". 1600CC injectors seem to be different then most other peak and hold injectors.. RC for example has a different ratio.. those are 2,5-1.

I want to know that so i can set up the peak and hold driver for best performance.

If someone knows of any other 4-1 peak and hold 1600cc injectors that i can use on my b-series on e85 would be appriciated..

 

Precisions 1600's, as well as everyone elses, are Bosch 1600's. They work fine with as little as a 2.5 or so amp peak and 4:1 peak and hold ratio. They're about 4.5 ohms on the injector.