i noticed everybody likes the ls6 manifold, but i was told that an aluminum manifold with NOS than the ls1 ls6 or FAST... aNY IDEAS???

 

Aluminum is not necessary with NOS. There's nothing different about running a nitrous application as far as intake manifolds are concerned. I believe the best mass market (versus sheet metal) manifold right now is the FAST. It makes the most horsepower N/A so it will also be best when you spray. The FAST also has provisions for the direct port fogger nozzles if you want to go that route.

 

An aluminum intake might be less likely to explode from backfire with a wet setup than plastic.

 

WF: that's true, the aluminum unit won't blow apart... but what will? Something has to give, doesn't it?

 

If the throttle plate's open, might be the airbridge, or it might just vent.
Don't really know. Just taking a guess at why someone might recommend an aluminum intake.

 

if i ever upgraded and stayed nitrous i would grab the fast unit. allows for directports very easily and comes 90/90 and performs fairly good. there is a local guy here who had a backfire and went with the lpe aluminium piece but im not a big fan of heatsoak/performance loss if there are other options that get the job done just the same or better.

 

True. If the plates are open, it might just blow the filter off the end of the AB...


Are these N2O backfires common or is this just something people need to be aware of when running really big shots through a single nozzle?

 

well the FAST is a little too expensive so what would be the best manifold foe NOS??? i was thinking about the holley.... ???

thanks for all the replies

 

someone did a manifold flow test/performance test and i think the ls6 is the better choice if you cant afford a fast. its been discussed here try a search.

 

They do sell burst panels for the fast manifolds and when a z06 manifold lets go on a back fire it blows the entire back out of it (happened twice) and you better kill the key because with a vacum leak that big its like having a 250mm throttle body wide open !

 

well i think i might just go with the aluminum one...

 

the aluminium could be stronger but ive seen guys blow stock metal intake manifolds apart on different cars. you dont randomly backfire if it happens you should look for a reason and correct the problem.

 

Future refrence.. dont call nitrous NOS. Your watching too much fast & furious.

 

2 reasons i call it that, one is because i have NOS, thats the brand i use.. and i hate that movie...

 

I would not worry about getting an aluminum manifold because you are afraid of a backfire. If you have all the right safety features a backfire is almost unheard of.
A backfire can bend the heck out of the throttle plate in the throttle body.