klampy
Member
- Joined
- Sep 25, 2007
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- 735
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- coffs harbour
- Members Ride
- Mazda E2000 V6 convert
its a bit of a grey area argument. of push vs suck....
theres two spacers. one goes in the runners, one goes in under the plenum lid.
now, my experience with mods is based on a VR but the principles are the same, i increased the size of my plenum. i lost torque down low. but picked up alot of power up high. so from what iv learned, longer runners shift your torque down the rev range, giving the appearance of having more down low. and the idea of the lid spacer, is to give a better distribution of air inside the chamber for less stagnant air meaning more free flowing air available to the runners when the cam opens the valves.
at the end of the day, a stock TB can only flow so much, but by adding the spacers your not changing the amount the engine ingests, your changing how it ingests it.
all i can say, is that my experience with the lower spacer (12mm) was a positive one. more torque and better economy.
theres two spacers. one goes in the runners, one goes in under the plenum lid.
now, my experience with mods is based on a VR but the principles are the same, i increased the size of my plenum. i lost torque down low. but picked up alot of power up high. so from what iv learned, longer runners shift your torque down the rev range, giving the appearance of having more down low. and the idea of the lid spacer, is to give a better distribution of air inside the chamber for less stagnant air meaning more free flowing air available to the runners when the cam opens the valves.
at the end of the day, a stock TB can only flow so much, but by adding the spacers your not changing the amount the engine ingests, your changing how it ingests it.
all i can say, is that my experience with the lower spacer (12mm) was a positive one. more torque and better economy.