Nitrous + Rev Limiter....?

[scottie2hottie]

Just wondering what ya'll think about this situation....when the rev limiter cuts out is this gonna cause some issues?

[Tiremine]

Your gonna get a big bang through the exhaust when all that unburned fuel ignites. The rev limiter is a must if you miss a shift but stay off the chip if you can.

[frederic]

Originally Posted by scottie2hottie

Just wondering what ya'll think about this situation....when the rev limiter cuts out is this gonna cause some issues?

It's potentially a very dangerous situation for your pistons at a minimum. Nitrious flowing in without fuel is definately bad.

Install an aftermarket rev limiter and a relay, and use that relay to cut off the nitrious at the same RPM, or a "hair" before.

Then everything cuts off rather than just the fuel.

or, edit the EEC data tables and increase the rev limiter value.

[scottie2hottie]

no eec, using MSD ignition with 'chip' style rev limiter. Im pretty sure it just cuts out spark. No real way to cut out the fuel it's on a manual fuel pump.

[77460ford]

The rev limiter is for controlling engine rpm. To control nitrous flow you can install a RPM window switch, this allows the nitrous system to activate only when you reach a pre-selected rpm and shuts it off at your other selection, it will wire right into your MSD system.

[scottie2hottie]

yeah i seen that in my recent jegs mag hadn't heard of it before but looks like it'll do exactly what I want.....Im running a 3k stall so engage at 3 or 3200 and disengage at 6 or 6200, i run a 6600 rev lim.

[77460ford]

Sounds perfect, lets you keep your eyes on the road instead of glued to the tach

[scottie2hottie]

Well, it's actually a muddy pit- But i know what you mean.