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Silverback build thread - 347 S485 TH400

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Old 09-06-2017, 09:52 AM
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Originally Posted by 408GT
That is surprising that it only picked up 25 whp with the dump open.
I was too but now I can sneak around most of the time and not worry about back pressure.
Old 09-06-2017, 09:59 AM
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Originally Posted by 98sscammed
I was too but now I can sneak around most of the time and not worry about back pressure.

How easy was the boost leash to configure? I bought one from Randy, pulse/boost combo and it didn't come with any directions for wiring or plumbing, and I got the dual gate kit. I emailed him a few days ago but haven't heard anything back from him.

Thats excellent news on the exhaust, makes me happy. I have a similr setup
Old 09-06-2017, 10:07 AM
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Originally Posted by Cwarta
How easy was the boost leash to configure? I bought one from Randy, pulse/boost combo and it didn't come with any directions for wiring or plumbing, and I got the dual gate kit. I emailed him a few days ago but haven't heard anything back from him.

Thats excellent news on the exhaust, makes me happy. I have a similr setup
Easy to hook up and setup. I actually found an electronic version the other day since I didn't have my paper copy with me. I will see if I can find it again and PM you a link.
Old 09-06-2017, 10:24 AM
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Originally Posted by 98sscammed
Easy to hook up and setup. I actually found an electronic version the other day since I didn't have my paper copy with me. I will see if I can find it again and PM you a link.
yes please do thank you!
Old 12-20-2017, 06:05 PM
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Figured an update was well overdue and a lot has happened. I ran into a few minor things hat needed to be changed like swapping to an ATI stock size to fix charging issues with the power hog fans, changed my bump to a coiled wire to make it easier to use, switched the trans cooler w/fan to the back and actually made the trans temps rise so I moved it back up front and made a cowl to direct air into it from under the intercooler, lots of other little things.

I made it out to the track 3 times. Once for soft hits and ran a 6.20 at 115 then made it out the the Dallas Streetcar Takeover and won the 10.0 index since I hadn’t turned it up. I managed to dial it in at a 9.98 with only 7psi. I then went to a private track rental the next day and ran a best of 9.19 @ 148 blowing through the converter bad. The more I gave it the more pissed it got and actually blew the front crank seal on that pass. I am already changing my crankcase ventilation to 2 non-PCV 10AN catch cans which should take care of that issue. I got real lucky since I was racing my buddy that has a 1400hp GTR and only pulled the chute to mess with him dice I won.

I have already fixed the front crank crank seal and have stripped my interior to have a 10 point installed. I am also switching to Holley EFI, 160lbs injectors, and Kirkey on the passenger side to match the driver side.

The plan lane is to run Drag Week in 2018 so I am catching all my safety requirements up to NHRA spec and getting my license to run the SRSBPA class.
Old 12-20-2017, 06:08 PM
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Old 12-31-2017, 06:18 PM
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Congrats! Very nice progression here with your build. Have fun with your offseason upgrades.
Old 01-01-2018, 02:16 PM
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I got the custom 10 point cage installed and have to say that I am really happy. I am 6’4” and have plenty of head clearance with my Kirkeys. I have started stripping the engine harness and will modify it to still use the factory BCM along with the Holley.

I am also modifying the BMR battery relocation bracket so that I can run a sealed battery box.
Old 01-01-2018, 02:19 PM
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Started my re-wire
Smoothed our the 3d printed Holley screen bezel.
Old 01-01-2018, 06:26 PM
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Nice build.

How’s the vacuum at idle with that stage 2 cam?
Old 01-01-2018, 07:57 PM
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Originally Posted by Razor
Nice build.

How’s the vacuum at idle with that stage 2 cam?
It is not bad at all, about 12 inch lbs for me
Old 01-04-2018, 03:31 PM
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Very cool build man ,you definitely do some good work !
Old 01-04-2018, 04:31 PM
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Originally Posted by Kcutty85
Very cool build man ,you definitely do some good work !
Thanks!
Old 01-04-2018, 04:33 PM
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Cleaned up my harness in preparation for the Holley. Trying to keep all of the BCM functional.
Old 01-08-2018, 08:38 AM
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Great build, nice work! Question for you - what exactly are you trying to keep with the stock PCM harness? The BCM will stay functional without the stock ECU and stock engine harness. If you are not trying to use the stock gauges then I would likely leave the stock ecu out of the car, unless you are trying to have a functioning OBD2 port for emissions.
Old 01-08-2018, 08:54 AM
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Originally Posted by TrikeMike
Great build, nice work! Question for you - what exactly are you trying to keep with the stock PCM harness? The BCM will stay functional without the stock ECU and stock engine harness. If you are not trying to use the stock gauges then I would likely leave the stock ecu out of the car, unless you are trying to have a functioning OBD2 port for emissions.
Thanks! Cruise control, alternator, & OBD II
Old 01-08-2018, 08:56 AM
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Got the roll cage painted.

Old 01-09-2018, 04:33 AM
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Originally Posted by 98sscammed





What kind of boost did it take to run that 9.1x @ 148?
Old 01-09-2018, 06:41 AM
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Originally Posted by slowlsx
What kind of boost did it take to run that 9.1x @ 148?
It was set to 18psi but it was blowing thru the converter on the big end so that is misleading. I am going to switch to a PTC converter before the car is up and running again.
Old 01-11-2018, 09:03 AM
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I saw this Car at SCT in Dallas. I was in the stick shift class. The 2002 SOM SS


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