Need some wiring help (nitrous)

[OneFastBMW]

I am putting my nitrous system in my car to go along with my water/meth system. So i dont have to go searching through wiring diagrams I was wondering if someone could help me out. I am looking for a tach signal and throttle position sensor wires. I am mounting the window switch inside the cabin so access to the wires inside would be preferred.

Just a side note. I am just bending some 3/16 aluminum hard fuel line to make a custom spray bar to cover the intake manifold. When the purge button is pressed, the nitrous will go through the spray bar and cool down the intake manifold. Seems like a good idea for these hot running S4's

I have a 2007 S4 for wiring purposes.

[OneFastBMW]

here is a link the the kit instructions

http://www.holley.com/data/Products/...99R10408-1.pdf

[S4J]

Cool! How long will this install take?

[TonyD]

Be careful. My buddy blew his S4 engine with nitrous.

[ItzDarrellS4]

what size shot are you planning on?

[OneFastBMW]

I am only planning on running a 50-shot.

Please post information about wht happened to your buddy's engine. Was it a B5? Also was it a wet or dry shot. Nitrous can be very bad if done incorrectly but great if done right.

The install will take me about a weekend as I plan to take my sweet time and not rush at all. But I have put kits in in about 3 hours (this is for a wet kit, a dry kit is much easier)

I am also running Wateer/meth injection so detonation is little to no problem.

[TonyD]

I am only planning on running a 50-shot.

Please post information about wht happened to your buddy's engine. Was it a B5? Also was it a wet or dry shot. Nitrous can be very bad if done incorrectly but great if done right.

The install will take me about a weekend as I plan to take my sweet time and not rush at all. But I have put kits in in about 3 hours (this is for a wet kit, a dry kit is much easier)

I am also running Wateer/meth injection so detonation is little to no problem.

I don't know much about it but he has a B6 S4. I also know he's an idiot and he put a 180 shot in there. Needless to say, it messed up his engine. He got that part replaced and took out the nitrous, but the previous explosion caused another problem resulting in a 2nd blow up just recently.

[91gl]

The purge on the intake manifold is a good idea but it will crack it. Going from as hot as it gets to as cold as nitrous can cause damage.

[OneFastBMW]

The purge on the intake manifold is a good idea but it will crack it. Going from as hot as it gets to as cold as nitrous can cause damage.

I will need to do some testing with a infrared thermometer to see how how the intake manifold actually gets. I cannot see it getting over 200 degrees F.

Yes, a 180 is a bit much for an aluminum V8.