96 Supercharger upgrade or swap

I'm a broke college kid, I couldn't afford that in a million years.

 

But isn’t it around 350 rear hp the safe zone before you need
to upgrade rear end and driveline parts?

 

Use thin block off plate at the egr tube openings and exhaust manifold EGR opening if you want to do away with the EGR tube. Then cut old EGR temp sensor wiring harness. Use a 10k OHM 1/4 watt resistor on the two wires after the connector where it goes into the engine harness. Reset the code and CEL is off. EGR monitor on the scanner shows "not ready".

 

You da man

 

What firmware did you run? z104, z110? Can't believe I even remember this stuff haha, been a loooong time since I ran a FIC (since went to a split second 02 thingy and Greddy EMU).

Right there with you- you articulate it better than I. I have a CXraxing turbo kit collecting dust and already have the S/C installed with great EMS and supporting mods so its super tempting though- kind of like IT types that build desktops that are overkill or outside of their use-case, or using Arch instead of a more turn-key distro to get their Linux "I use arch" merit badge- peeps do stuff sometimes simply because they can and/or for the challenge. In the twin charge case the challenge would be EMS and maybe an arduino to control a bypassing system so its truly a twin-charge setup and not a compound setup. It would probably ruin the daily driverness of my truck for a long time, but the data logs, hacking etc would be pretty engaging. Probably would hurt long term reliability too- more power, more parts to wear out, murphy would approve.

Oh yeah, OP IMO between your two options either one could be cheaper depending on the timing/who you find offering what. For peace of mind I would rather re-build what I have and obtain an s/c to slap on (and do EMS) vs. buying an all-in-one setup that for some reason someone has lying around and wants to sell. Plus I can't imagine there are a lot of S/C'ed 5vz's just sitting around so I don't know how much time you have to be looking for a score like this.

 

A big hurdle would be keeping it all compact enough while also keeping it cool enough. Tuning would be finicky and so would bypassing the SC. Would require a large sum of cash. But if someone wants to do it Im all for it. Bypassing the stock ECU would make it alot more straight forward but at that point you really have a race engine setup and yeah it would ruin the daily-ability of it all. having something be daily-able is part of the fun imo.

And I'll be honest I tend to build my desktops overkill that's mostly so they can keep up for longer and I don't have to drop cash quite as often to keep up performance.

 

Part of the twin-charger excitement on this platform for me is the initial appearance of ease (plumbing wise). The bolt-on CX kit, the way the TRD roots blower simply takes the place of the OEM intake manifold- the only issue looks like having to find a way to bend some piping around the S/C cone/pulley area.

I'm building a super simple S/C bypass simply because I hate partial throttle boosting when doing mountain driving- I have a vacuum tank, check valve, switch, boost solenoid from a VW I believe, etc to make a simply on/off switch-in-cabin S/C bypass. Apparently the S/C bypass is a bit anemic and at high load there will still be a pound or two of boost, but I would tune for that and still be happy I'm not 4-5 psi partial throttle boosting up mountain roads. Would be an interesting project to replace the switch with something programmable and with PWM output for the solenoid and start playing around with it to get a warm fuzzy to see if its not crazy rocket science to smartly start bypassing the S/C when the turbo kicks in. In fact the EMU 7th injector output has been used as a poor man's boost controller on a few forum tutorials, so even better!

But like you mention, lots of potential PITA challenges to surpass. Its naive to say but I would not expect to invest much money at all, but I'm still going to say it haha- I already have the CX kit (bought it super excited when it came out because I was convinced it wouldn't be on the market all that long, so wanted one 'just in case' plus I had wholesale pricing), already have a spare MS3Pro, already have the split second/Greddy EMU combo, already tuned on 6xx cc injectors, fuel pump, lots of misc parts from previous builds. The tranny would need some work, but thats needed regardless, I've just been putting it off. I'm in this super rare situation of having a platform that probably has one of the MOST bolt-on twin-charger potentials of all time and I coincidentally acquired a lot of said parts to do it- now just sitting there- be it already installed (S/C, EMS, supporting mods) or in the garage shelves. Its calling out "PLEASE!!!" lol.

 

yup im into boost around 2200. 1800 in overdrive with a load im building 2-3psi