Brandon's FC Build
09-29-12, 09:24 PM
#29
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To free up a pwm on the Haltech and utilize the idle control system, Rising RPM makes a nice GM IAC to BAC Manifold. I just happen to have a spare IAC sitting around from another vehicle...
09-29-12, 09:31 PM
#30
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I also decided to go ahead and up the compression ratio past the S5 TII by changing the rotors out for a set of S4 N/A rotors. The 9.4 : 1 ratio will make that BNR Stage 4 spool like a beast...
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mostly on supras
09-30-12, 12:29 PM
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The HKS SSQV 3 I have has changeable inserts that make different sounds when they discharge. The one I have installed now is a chirp followed by a whoosh.
09-30-12, 12:33 PM
#36
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Not everyone has access to CNC machines! Here is a commercial one for the RX8 and another concept one for the FC that came up when I ran the Google search I listed.
10-01-12, 07:38 PM
#38
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i am talking about the bov at 4.50 on this vid
Ultimate Turbo and Blow Off Valve Sounds Part 3 - YouTube
Ultimate Turbo and Blow Off Valve Sounds Part 3 - YouTube
10-01-12, 07:47 PM
#39
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You can see this happening further down at 5.06 on your vid, that type of surge is caused by not having a large enough wastegate. The wastegate is not allowing enough exhaust to bypass the tubine causing the turbo to overboost the motor. S4 rx7's are notorious at doing this when removing the cats and installing a downpipe on the stock turbo. That is one of the main reasons i went with the BNR turbo. Bryan tweaks the wastegate early on his S4 builds.
I would bet money that this guy is running a stock turbo with no bov, a boost controller cranked wayyyy to high with an turbo back exhaust.
I would bet money that this guy is running a stock turbo with no bov, a boost controller cranked wayyyy to high with an turbo back exhaust.
10-04-12, 09:20 PM
#41
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I finished the wire tuck and moved all of the relays and fuses to the area by the brake booster. I also have relocated the battery behind the passenger seat for better weight distribution. Pulled an e-fan out of a 97' Mercury Villager and it is perfect. Has a three wire one for “High” speed and one for “Low” speed a four and five pin relay and two temp switches will drive it perfectly. Next is removal of all the engine bay components and blasting the whole thing. A fresh coat of paint and a sweet looking engine plus no clutter. I cant wait to see it when its done...
10-12-12, 06:49 PM
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I am going to run both at the same time except for track days and I may still run the filter. The velocity stack will still do its job even with the filter on it.
10-12-12, 06:52 PM
#49
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The parts where all dipped in degreaser, pressure washed and blown down with air before they made it into the clean room. I plan on a second wash down before final assembly just to be sure I didn't miss anything.
