turbobitt
Well-Known Member
- Joined
- Feb 14, 2002
- Messages
- 2,465
I realized your thinking when I saw that you chose a 3.5" core. If you would have chosen a 4.5" core it would have flowed more with diminishing amounts of extra cooling with unnecessary weight. This is a project of compromises and I like the ones you've made. Good job.
The 3.5 core was chosen for a few reasons.
1 - There were cast tanks readily available to keep the cost down. Although cost wasn't our immediate concern we still need to be conscious of this if we are to produce these for others in the future. The more shelf parts the cheaper it will be.
2 - Even with this 25x12x3.5 core will still manage to take advantage of the 1500 CFM flow capacity that the vertical design has to offer and will probably outflow all commercially available horizontal flow designs. So if we were to consider this as a baseline size, we could consider bigger or maybe even small light weight designs in the future. Think about this, we could conceivably make a 1000 CFM design and would probably have no pressure drop and would be lightweight and compact and possible still have enough cooling capacity to handle most bolt-on mods. Only time and data will tell. The only drawback is that fabrication cost would still be the same and may not make sense to produce it.
3 - We do have a 4.5" and 6" max effort(3000CFM) design that require fabricated tanks. As you could imagine the weight goes up significantly. The 6" core and tanks will be about 60-64 pounds total weight compared to about 30-34 pounds for the 3.5 core.
AG.