Brandon's FC Build
12-13-12, 07:57 AM
#76
Mr. Fix-it
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I have not even programmed the twin scroll actuator and the car builds boost instantly with minimal lag. If you look at the rotors in the Turbo motors between the S4 and S5 motors they jumped from 8.4:1 to 9:1. The N/A rotors for the S4 are 9.5:1 and so long as you stay in the realm of the S4 internals you can use N/A rotors with your existing counterweight and flywheel. If you can shop them out one at a time and get matching weight stamps you can safely rev a tad bit higher. I plan on pushing 18psi on them with pump gas.
12-28-12, 08:49 PM
#79
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Well I have not had any luck. The POS Walbro seized up on me a few weeks ago with low low hours of use on it. So I have bought some necessities. A new Walbro 255, a Optima red top battery a new alternator and the big time, a rotary works v-mount kit. The build is going to take a tad bit longer than I thought. I will keep you all posted on the progress once parts start to show up.
01-03-13, 06:41 PM
#84
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Thank you for all of the compliments, they are reinforcing. I have made some real progress since my last post. The Rotary-Works v-mount kit arrived today and I have some issues with it. All around a decent kit for the price, though it was missing all of the plumbing that you need to completely install it. Aside from the trimming and slotting that was required to get everything to line up the fit up installation only took two hours. The machine work was a little shabby and the radiator will have to be modified to relocate the lower radiator neck so that it is not the first thing to hit the road. As to be expected with any v-mount there will be a lot of modification to the car to make it work. The old radiator mounts have to go, I hammered them out of the way for the moment. The oil cooler lines will have to be custom built, I may just buy a better cooler with the lines made for the kit from rotary works. Now for the pics...
01-20-13, 09:19 PM
#93
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Ok the lower radiator hose is going to be changed this week. I am going to weld up an aluminum tube and use couplings like the intake plumbing. I finished the fan install, re-plumbed the fuel system and added a regulator gauge and made up the oil cooler lines. I lack a 16x1.5mm to -10an adapter and the lower radiator pipe with heater hose t-fitting. Enjoy.
01-27-13, 07:48 PM
#99
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I finally took her out for a drive today it was pure satisfaction. I pushed the boost until 20 psi before I ran out of injector. I logged 102f intake temp on the intercooler. Second gear was over with in a matter of seconds and my adrenalin gland squeezed off. I added a vent to the front clip devoted to the oil cooler and also put a fan on the intercooler. I did not have time to install the carbon fiber sunroof panel as i am confused on how it works with the oem gasket. Enjoy
01-27-13, 08:05 PM
#100
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Here is what the idle sounds like. Nice muffled brap brap 
Soon I can get some road vids, she gets quite loud at 18psi.
Soon I can get some road vids, she gets quite loud at 18psi.Last edited by Brandon Robinson; 01-27-13 at 08:07 PM.