*The ulitmate street/strip build* F1C procharged trans am ws6 ~pic heavy~
06-19-2017, 10:09 PM
#141
With a 7.65/4.0 pulley combo, he's pushing 70k @ 6800. With a max of 74k for the F1C there's still a little left if the 8-rib can hold.
So the reverse rotation question has been answered, where's the leak?
Other ways boost can get lost:
* Undersized injector o-rings on intake manifold side
* Torn intake manifold gaskets
* Intake manifold not sealing flush to heads (due to milled heads)
* Bad internal intake manifold seals or cracked somewhere
* Cracks in intercooler
* PCV vent in throttle body (mine is capped off)
* Big Red BOV not holding
If the boost issue is fixed this car could be pushing 1k rwhp!!
So the reverse rotation question has been answered, where's the leak?
Other ways boost can get lost:
* Undersized injector o-rings on intake manifold side
* Torn intake manifold gaskets
* Intake manifold not sealing flush to heads (due to milled heads)
* Bad internal intake manifold seals or cracked somewhere
* Cracks in intercooler
* PCV vent in throttle body (mine is capped off)
* Big Red BOV not holding
If the boost issue is fixed this car could be pushing 1k rwhp!!
08-19-2017, 08:49 AM
#144
Sorry i havent posted for a while. Here is a video of the dyno i put it on that was in town. I have just been having patrick G tune it via email. so its been a slow process. When i had it on this dyno it was in the lower 10's AFR. We have it in the 11s now, but havent put it back on a dyno yet. This was 809HP. Overall im happy with the build, the only thing i am disapointed in is the kooks true duals exhaust, its extemely loud which was expected. But the drone is the worst i have ever heard. Still planning on replacing the mufflers with magnaflow ovals, hopefully that helps the sound out a bit.
08-19-2017, 09:54 AM
#145
The Kooks exahust is garbage for the money. Wish I had done something else.
Having no exhaust pipe behind the bullets makes the drone worse. They are good as tailpipe resonators, but you'd need mufflers before the axle for it to work. But there's no room. The ovals will quiet it down and give it some tone, but it still will be crappy that you have to hack on a $2k exhaust.
Having no exhaust pipe behind the bullets makes the drone worse. They are good as tailpipe resonators, but you'd need mufflers before the axle for it to work. But there's no room. The ovals will quiet it down and give it some tone, but it still will be crappy that you have to hack on a $2k exhaust.
08-23-2017, 08:11 AM
#147
I ran a dual 1 7/8" LT SS headers 3" collectors into a FM merge dual 3" in and 4" out. Then into a custom 4" catback with dual full length mufflers, hooker aerochamber and dynomax SS ultraflow with a single 4" dump out the driver side. Had it on for a few months and sold it. Even with the dual full length quality mufflers the noise was just to loud to cruise. Idle was great, but any throttle and it just came alive. Didn't really have any drone but that was bc my supercharged 5.3 doesn't have active DOD but I use DOD cylinders as a over lean protection cutoff. I activated it a few times by mistake lol and it didn't great. Given these are high flow high hp mufflers, basically straight through design.
If u want quiet your going to have to add some restriction. Some restrictive super turbo mufflers would probably quiet it down but also restrict flow. I now run a 3" summit catback with a dynomax ultra SS muffler and couldn't be happier. Cruising is great and on the throttle it's loud.
If u want quiet your going to have to add some restriction. Some restrictive super turbo mufflers would probably quiet it down but also restrict flow. I now run a 3" summit catback with a dynomax ultra SS muffler and couldn't be happier. Cruising is great and on the throttle it's loud.
10-03-2017, 04:54 PM
#150
Finally made it to the track! With 18" corvette rims on the back and toyo radials it ran faster then I expected the first night out. Best pass was 10.47 at 135mph. The best 60' was 1.74! I need to get some 15x10 wheels on the back with some good radials and get that 60' down. Overall really happy with the way it ran. Still fighting some idle issues, likes to die when i put it in gear.
