Installation FAQ

Installation FAQ

Here are some of the common questions we get and the answers to them.

1. What size tap will I need for the jet?
The jet ships with a jet adapter that is the unit that will be tapped into piping/manifold/etc. This adapter is 1/8″NPT. Therefore you will need a 1/8″NPT tap and 11/32 drill bit. If you wish to tap for the jet and forego the adapter you will need a M8x.75mm tap and 7.2mm(9/32″) drill bit. Please see question #2.

2. Why can’t I just put the jet directly into the piping and forego the jet adapter?
The jet adapter I.D. has straight threads and a chamfer for sealing the face of the jet. Unless the surface you are putting the jet into is perfectly flat and thick enough to put a small chamfer for the O-ring to seal against, you may have leaks. It is strongly recommended you use the jet adapter unless there are special circumstances. See #3.

3. The IC (insert engine component here) tubing is very thin, will the jet adapter work correctly?
Yes, the jet adapter is designed to work in both thick and thin wall tubing. Use high temperature Loctite to install the jet adapter after fitting. You can buy the Loctite from us here. See #4

4. Are there any special instructions for installing the jet adapter?
No, but here are a few tips. Check the depth of the tap frequently since it is tapered to ensure the adapter screws in tight and flush. You will most likely run up towards the end of the tap, but stop frequently and test fit the adapter. Do not run the tap all the way to the end and find out the adapter screws in and does not tighten up. After test fitting install the adapter with high temperature Loctite to seal the threads. Nothing else is needed.

5. Is there a tightening spec for the jet adapter and jet?
No, and they are not made of unobtainium! The Aquamist fittings are made from brass and nickel plated. This ensures they work with both water and methanol without corrosion problems. This also means they are brass, not hard stainless, so if you think they are a lug nut you will break them off. Be gentle.

If you need new jets or jet adapters go to the Parts Page. Jets are at the top of the page and the jet adapter is PN 806-357n.

6. I want to put the Jet into a silicone hose, is this possible?
Yes, we offer two items for this. First is a Jet Adapter for Rubber/Silicone tubes. These are PN 806-384, 806-385 and 806-386 on the Parts Page.

7. Do I need to remove the engine component to drill it for the jet adapter?
Yes. There may be a way to do it without removal but the best way is to remove the component, drill and tap, then clean thoroughly, install adapter and re-install. You don’t want any shavings ending up anywhere in the inlet track or floating around in the engine compartment waiting to get sucked in.

8. What size jet(s) do I need?
Start with the jetting calculations page, and if you need more help please contact us with the following:

A. What size injectors do you have?
B. How many cylinders is the engine?
C. Turbo or Supercharger?
D. What’s the peak boost?
E. What’s the boost profile look like? (How fast does the boost come on)
F. What fluid are you going to use? (100% water, 50/50, 100% methanol, ethanol or something else)
G. Anything special about the application? (Spraying pre-turbo, etc.)
H. What are your goals with this system?

This may lead to a few more questions but should get the discussion in the right direction.

9. Where can I mount the pump?
You can mount the pump anywhere with these exceptions:

A. Keep the pump away from direct heat, like above the exhaust manifold.
B. Keep the pump as close to the tank as possible. Diaphragm pumps do not excel at drawing long distances on the suction side.
C. Do not put the pump in the direct spray of water, like exposed in the fender well. These are not TEFC motors, another words they are not water tight. Electricity and water do not mix.
D. Do not to run lines or fittings that may leak directly over the pump motor section. See above, these are not sealed motors.
E. If possible, locate the pumphead downwards or below tank level.
F. The pump can be mounted horizontally or vertically.

10. What tools will I need?
This varies with the type if installation, but here are some of the basics:

A. Drill, drill bits
B. Tap for jet adapter
C. Wire cutters, wire strippers, lug crimpers