N54Tech.com - International Turbo Racing Discussion
(#1)
Old
N5Floored's Avatar
N5Floored N5Floored is offline
New Member
 
Posts: 10
Join Date: Nov 2020
Car: E92
Default jb4 or hobbs switch for now? - 12-05-2020, 08:14 AM

I'm just getting out to the barn working on the 335 and going over my logs from last night I noticed my stage 3 LPFP pressure was dipping real low, currently I have my secondary walbro 450 hooked up to a hobbs switch at 15psi and it doesn't seem to have been triggered. Im pretty sure it was a crap relay when id cross the hobbs it would take 3-4 times triggering it for the pump to kick on. I just swapped it out for a oem relay and can go out and run some logs or my question is; I'm in the process of doing a st conversion and have a already installed the pi and have the jb4 pi controller sitting in the box. Do I wait on the pi controller and keep running the hobbs or is it worth hooking it up on stock turbos running a bef on mhd with stock twins? Im already on a e85 bef running e60
just wondering if there's any cons as I could wrap this project up and go play 😎

again thanks for any feedback
Justin


2009 BMW 335I MSport 6MT N54, 18" Avant Garde M359, Akrym CF FL, MHD/JB4 e85 bef, Anti-Lag/2step & PI Controller, Stage 3 Twin Walbro 450's Bucketed 15PSI HOBBS Switch, VRSF 7" FMIC, DCI, VTT Chargepipe, ** DP, Straight Piped, TIAL BOV, 3.5Bar TMAP, RB PCV, Catch Can, Precision Race Coils, Index 12 Inj, 2Step colder NGK Iridium, BMP PI(TBI), DOCRace Top Mount GTW6465R(TBI), 535I Clutch, Removed CDV, Weighted short Shifter, MFactory SM Flywheel(TBI), M3 F/R Control Arms, BCRacing Adj Coilovers.
Reply With Quote
(#2)
Old
N5Floored's Avatar
N5Floored N5Floored is offline
New Member
 
Posts: 10
Join Date: Nov 2020
Car: E92
Default 12-05-2020, 09:14 AM

my hobbs isn't triggering until 20psi and it won't adjust any lower, scratching the hobbs and hooking up jb4 pi controller with bef on mhd.


2009 BMW 335I MSport 6MT N54, 18" Avant Garde M359, Akrym CF FL, MHD/JB4 e85 bef, Anti-Lag/2step & PI Controller, Stage 3 Twin Walbro 450's Bucketed 15PSI HOBBS Switch, VRSF 7" FMIC, DCI, VTT Chargepipe, ** DP, Straight Piped, TIAL BOV, 3.5Bar TMAP, RB PCV, Catch Can, Precision Race Coils, Index 12 Inj, 2Step colder NGK Iridium, BMP PI(TBI), DOCRace Top Mount GTW6465R(TBI), 535I Clutch, Removed CDV, Weighted short Shifter, MFactory SM Flywheel(TBI), M3 F/R Control Arms, BCRacing Adj Coilovers.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2020, N54tech.com