comp 918's
 

I want to spray my 04 GTO in the near future. Anyone have experience using nitrous on an engine with comp 918's?

I'm not sure where the relation comes in with what you're asking? What color is the car?

There are way better springs than 918's out there. Look at Brian Tooley"s website. Good springs for a cheap price and good quality.

My first reaction is quiet harsh to this-
Maybe if this is a stock replacement situation they will be soso-at best.

If you care about your motor? Toss them in the trash can.

In 2012 I had 4 broken comp 918's.

This was after I explicitly told my engine builder to NOT use them( based only on my Internet research).... 550 lift less than 10-1 bullshit mild build.
Spring height set up perfectly etc etc.
swapped them out for PAC1518....
Those tooley springs sound like a good one as well-
Whatever you do get away from those comp918's.

Pure garbage- do some research- it's old news and its still current as I learned.
It wasn't a 'bad batch' !!!!!!!!!!
F-them.

And that was my 'calm down' before responding response....
My engine builder is lucky he didn't swallow some teeth for putting those in my motor after I specifically told him not to.

I'm using Comp 918s and have been spraying my car a good amount with no problems. 224/228 .581/.588 cam and 150 shot

You're not running too large of a cam and wait til you have one break, then you will see why running a dual spring can save your motor.