Follow up to my homebrew boost issues from last night
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Follow up to my homebrew boost issues from last night
Well it seems my boost cut or WG taper only occurs when I get on it at ~3000 rpm in 3rd gear or higher:
Spikes to 19-20 and drops to ~16psi.
If I don't stomp the go pedal until 3500+ rpms boost spikes to 20 and holds steady at 19psi as revs climb(as intended).
Anyone else experience similar behaviour using a homebrew set-up?
PS- I won't have a chance to fiddle with the wastegate preload until I have the right tools. I want to get a hold of a regulator/pressure gauge to read 0-10 psi accurately (and precisely). I plan to connect to the actuator cans and slowly raise pressure until each gate starts to move. Easier said than done I'm sure.<ul><li><a href="https://forums.audiworld.com/s4/msgs/2247772.phtml">previous post</a></li></ul>
Spikes to 19-20 and drops to ~16psi.
If I don't stomp the go pedal until 3500+ rpms boost spikes to 20 and holds steady at 19psi as revs climb(as intended).
Anyone else experience similar behaviour using a homebrew set-up?
PS- I won't have a chance to fiddle with the wastegate preload until I have the right tools. I want to get a hold of a regulator/pressure gauge to read 0-10 psi accurately (and precisely). I plan to connect to the actuator cans and slowly raise pressure until each gate starts to move. Easier said than done I'm sure.<ul><li><a href="https://forums.audiworld.com/s4/msgs/2247772.phtml">previous post</a></li></ul>
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Is it odd that it occurs at lower rpms and not when I get into boost at higher revs?
Like the WG gets blasted open.
Maybe an EBC would crack open the WG in a smoother manner than the MBC? Boost hits VERY fast/hard on X.
As noted a few posts down, I've got to get together with Mark/Autospeed and get some custom tuning to get that smooth throttle and boost control his software has.
Maybe an EBC would crack open the WG in a smoother manner than the MBC? Boost hits VERY fast/hard on X.
As noted a few posts down, I've got to get together with Mark/Autospeed and get some custom tuning to get that smooth throttle and boost control his software has.
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Not really. TIP is time dependant...
The more time you're pushing air through the exhaust housing the more time pressure has to build up. Conversely, if you start to hit boost at a higher rev you're reducing the overall time the exhaust housing has to build up TIP.
Good idea for you to see Mark.
Good idea for you to see Mark.
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