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RCCUMMINS89 wrote:It is about the same as 12. HTT, Industrial Injection, and myself... all run the .70 in our "12cm" housings.
Not sure why you would want to get away from the stock hx35 housing?
RCCUMMINS89 wrote:Then save yourself some money and run your stock gate PLUS an external gate. Then you'll have nearly twice the gating capability and save yourself a bunch of money in the process.
Tacoclaw wrote:Has he "ported" his 'gate out any? Or drilled through the divider?
The 'gate only reliefs the rear three cylinders, the front three can continue to produce boost of they're putting out enough volume.
I would also think that you could open a stock wastegate hole out to better than double what they are stock if you drill it right to the edge of the flapper.
I didn't have any boost creep with a 12cm housing on an H1c with 5x14 injectors at 3200rpm. It stopped wherever I set it with an electronic switch and valve.
Tacoclaw wrote:If it's an auto you don't have much spooling to worry about, it spools once through the gears.
If you do a lot of stop-and-go or have an extremely tight converter it may be worth it, but a torque converter will cover up a lot of spooling problems the 5-speed guys deal with.
I still think the HX housing would work fine as long as your injectors aren't like 5x20 or something. All I did was take a 7/8-ish (probably not the right size, make sure you measure yourself) bit and ram it through my housing on a drill press. Didn't even pre-drill the divider, it's cast so it cut like butter, just take it easy and keep the bit lubed up.
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