6 Pack Nitrous

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Russ Knight

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I am considering adding nitrous to my engine build. I do not want to alter the 6 pack manifold. Does anyone make a spacer plate nitrous setup for the small block 6 pack?
 
Russ Knight said:
I am considering adding nitrous to my engine build. I do not want to alter the 6 pack manifold. Does anyone make a spacer plate nitrous setup for the small block 6 pack?
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Yes, but I forget who, ...My buddy Mike had them for His AAR, but hasn't used them. Ended up putting a 408" stroker in it w/LA-X Heads & a bigger cam instead.
 
Russ Knight said:
I'm doing something like that too. :)
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It went from a best of 12.30's @109+ with the 340 & T/A heads I did a mild port job on, to a 'so far' best of 11.90 @114 w/the new setup, but it was running way rich now. He's stepped the jetting down & it cleaned up & smoothed out, but I'm sure there's a good bit in there to unlock yet.
My memory is telling Me the NOS plate setup only sprays the outboards, the center plate is just a spacer to level it up, IIRC.
The 340 was 9.7:1 & ran a Purple shaft 292°/.508" cam with the original tight LSA. Not sure of the squeeze on the stroker, & cam is right around .600" lift.
 
Killer6 said:
It went from a best of 12.30's @109+ with the 340 & T/A heads I did a mild port job on, to a 'so far' best of 11.90 @114 w/the new setup, but it was running way rich now. He's stepped the jetting down & it cleaned up & smoothed out, but I'm sure there's a good bit in there to unlock yet.
My memory is telling Me the NOS plate setup only sprays the outboards, the center plate is just a spacer to level it up, IIRC.
The 340 was 9.7:1 & ran a Purple shaft 292°/.508" cam with the original tight LSA. Not sure of the squeeze on the stroker, & cam is right around .600" lift.
Click to expand...
Thanks for the info!
 
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Making those plates can't be that hard. I could make em with my mill in a day. The rest is just standard NOS parts, isn't it?
 
If you consider that a n20 bottle is $350, solenoids start at $150, a standard nos spraybar plate is $325 and it comes with the line, relay amd microswitch it's not bad price wise. For some reason folks are under the impression that nitrous kits are inexpensive. Like any power adder, they are not.
 
A complete kit like that for a 6bbl with top quality parts is worth every penny, I don't like the center only perimeter plate deal tho', so.......but yeah, it ain't 1985 anymore..
 

Small block six pack nitrous is doable and has been accomplished in many ways from plates to hidden foggers under the manifold. One of the tricky areas is six pack manifolds are not real consistent with air fuel across the intake ports and they will go lean when the outboard carburetors begin to kick in. All of this can be overcome but I would start small and read the plugs carefully as I moved up nitrous levels.
 
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