I'm creating a DIY write up based on my Alcohol Injection System. First I will make a computer controlled then standard boost activated setup. This will be a work in progress but here is the start.
The brain of the system is a Split Second Engine Management Control Unit. Using "T" clamps I tied into my PCM input and tapped crank and cam sensors for RPM and exhaust sensors for EGTS. The Split Second has been remapped using an "R4 controller." I access the computer through my laptop PC Using an RS232 cable. The unit will only monitor crank sensor, cam sensor, EGTs and boost to deliver the alcohol through two anodized injectors (designed for alcohol) at preset rates to optimize efficiency.
Flow is controlled two ways.
#1 at 3psi boost, the system arms and fires injector one at about 150cc/min as boost climbs, so doe’s rate of injection. At 6 psi, injector two starts firing to match the 150cc/min giving me 300cc/min. At WOT the system is firing about 500 cc/min. This is about 40% of the injector’s potential.
List of parts.
01. Split Second Controller P/N #4PCE160-011
02. Northern Star Water Pump P/N #M2682270
03. Brass Fitting For Injector ½” P/N #P10717(female)
04. Fittings for pump/tank 3/8” P/N #43075
05. Bosch 750cc SIEMENS Injectors P/N #3145
06. Automotive 12V 30 Amp Relay P/N# 275-226
07. Devil’s Own Nylon Tubing P/N #2009
08. 2 Blade Type Fuse Holders P/N# 270-1213
09. 3 pack 20Amp Blade Type Fuses P/N# 270-1083
10. Lighted Rocker Switch P/N# 14-308
11. Scotchloks Splice Tap Terminals P/N# AWS-31562
12. Injection Tank
13. Insulated Electrical Connectors
14. 12 Gauge Wire Black/Red
15. Vacuum Line “T”
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Topic: DIY Computer Controlled Alcohol Injection (Read 2380 times)