Wilson Manifolds 810100 Progressive Nitrous Controller and Vehicle Data Logger - Manual (Page 18)

Nitrous Pro-Flow, 4700 NE 11
th
St., Ft. Lauderdale, FL 33334 Pro-Flow Part. No. 810100
(954) 771-6216 www.nitrousproflow.com 1/2008
Page 18
Use the A0911 .110” female terminals for the
SPST switch and the MNU18-187DFIK .187” female
terminals for the SPDT momentary switch. Mouser
Electronics sells a wide range of high quality switches.
If you require a different style switch, we suggest that
you order their catalog.
RELAYS
The typical import brand 30-40 amp relays
supplied with nitrous kits leave little safety margin.
When used to switch heavy inductive solenoid loads,
arcing can result in the contacts welding together – a
potentially catastrophic failure mode. We recommend
using Tyco/P&B automotive OE grade relays available
from Newark Electronics and Digi-Key. Use the 40 amp
version for purge and the 70 amp version for
fuel/nitrous. You can also use the 40 amp version for
the retard relay shown in Figure 4. We recommend that
you use the relay sockets and crimp terminals listed
along with the relays.
P/N Description
1432791-1 40 amp VF4 series relay
VCF4-1001 Socket for VF4 series relay
60249-1 12-16 AWG terminal for VF4
VF7-41F11 70 amp VF7 series relay
VCF7-1000 Socket for VF7 series relay
42281-1 14-18 AWG terminal for VF4 coil
connections (2 required)
280756-4 10-14 AWG terminal for VF7
contact connections (2 required)
FUSES AND FUSE TAPS
ATC series fuses and fuse holders commonly
used for automotive applications are only available in
40 amp and lower ratings. This leaves an insufficient
safety factor when used with a nitrous system where
the current draw can exceed 30 amp. We recommend
upgrading to the heavy duty 50 amp Littlefuse Maxi
Fuse series available from Digi-Key.
P/N Description
F1085 Maxi fuse block
F1038 50 amp Maxi fuse
Fuse taps are a convenient means of accessing
switched +12V power. Solder the tap onto the fuse and
use a female quick disconnect terminal for the new
connection. Fuse taps are available from State Wire
and Terminal.
P/N Description
ATC-TAP Fuse tap for ATC standard size fuses
ATM-TAP Fuse tap for ATM mini fuses
RELIABLE CONNECTIONS TO EXISTING
SIGNALS
To connect the nitrous controller, you will have
to tap into some existing signal wires on the vehicle.
We caution against using any of the so called “vampire
clips” that make an insulation displacement connection.
These have proven very unreliable in racing
applications. They may even cause the original wire to
fray and break. We suggest a soldering any
connections to existing signals. Use a stripping tool to
cut through and push back about 1/4” of insulation at
the spot on the original wire where you plan to make
the connection. Wrap several turns of the new wire
around, solder, insulate with self vulcanizing electrical
tape, and use two cable ties to secure the splice as
shown. Regular electrical tape will tend to unravel. Self
vulcanizing electrical tape is available from Digi-Key as
their P/N W213.
SUPPLIERS
Suppliers referenced in the Appendix are listed
in the table below. Additional suppliers for connectors,
electronic tools, mechanical hardware, and test
equipment are listed on our website at
www.daytona-sensors.com/tech_tools.htm .
Supplier Phone Website
Digi-Key 1-800-344-4539 www.digi-key.com
Mouser 1-800-346-6873 www.mouser.com
Newark 1-800-463-9275 www.newarkinone.com
State Wire
& Terminal
1-800-922-6527 www.statewire.com