FuelTech’s Peak & Hold 8A/2A Injector Driver is a 4-channel low impedance driver unit that controls up to 4 injectors with impedance below 1.5 ohm. Designed for use with low impedance fuel injectors. Mounting kit included. 
 
Current control driver for low impedance injectors
4 channels
Available in three current versions:
8A/2A (Currently Viewing)
4A/1A
2A/0.5A
Technical Description
Peak and Hold 8A/2A (Currently Viewing)
Controls up to 4 injectors with impedance below 1.5 ohm
4 FT Injectors (1 per channel)
16 Bosch 160lb/h (1600cc) injectors (4 per channel)
8 Siemens low impedance injectors (2 per channel)
4 MSD low impedance injectors (2 per channel) (with 2 ohms impedance per injector)
Peak and Hold 4A/1A
Controls up to 4 injectors with 1.5 to 3 ohms of impedance
8 Bosch 160lb/h (1600cc) injectors (2 per channel)
4 Siemens 83lb/h injectors
4 MSD injectors (with 2 ohms impedance per injector)
Peak and Hold 2A/0.5A
Controls up to 4 injectors with 3 to 7 ohms of impedance
4 Bosch 160lb/h (1600cc) injectors
Dimensions: 115 x 90 x 33mm
To determine which Peak & Hold you need:
Grab a multi-meter and select Ohms 200
Touch the positive and negative leads of multi-meter together to measure resistance (record this number...i.e. measured 0.3)
Then take the positive and negative leads from multi-meter and put on each terminal of the injector. Doesn't matter the order. Record this measurement
Take the ohms measurement from Step 3 and then subtract the number you got in Step 2 (i.e. Step 3 4.8ohms - Step 2 0.3ohms = Total 4.5ohms)
High Impedance Injectors – Above 7 ohms – No Peak and Hold Boxes are needed
Peak and Hold 2A – 3 ohms to 7 ohms (Bosch 160lb/hr)
Peak and Hold 4A – Below 3 ohms to 1.5 ohms
Peak and Hold 8A – Below 1.5 ohms (FT Injector, Billet Atomizer*)
All low impedance Billet Atomizer Injectors manufactured after Nov. 2012 require 8A regardless of measured resistance
Billet Atomizer Injectors – Anything prior to serial # C300*** should only use the 4A/1A. This only applies to injectors manufactured prior to Nov. 2012*
Contents of Packaging:
1 Peak and Hold 8A/2A
1 Operation and installation guide
1 mounting kit (4 rubber mounts, 4 washers and 4 ¼” nuts)
6ft Peak and Hold unterminated harness (optional)
1 FuelTech black carbon fiber sticker