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This brilliant idea cost me 65.00. Add a couple of hours chasing fittings and hoses to that.
I had the vacuum ga. in a drawer for years now, so that isn't in the mix. Nobody had bulk 3/8" vacuum hose. After going to all three major A/P stores, I finally travelled downtown to the NAPA main store, and they had it. ( But even then they had to look it up in their catalog)
When I get back home, I install the thing, and take the car out to see how it will shift. In reality, I don't need the thing, I have 16-18" of vacuum at idle, I just wanted to take the check valve off of the line that goes to the vacuum modulator to allow for full throttle 3/4 shifts. (pretty stupid in reality,...How many times will I actually be flat footing the thing past third gear?) By putting this thing in between I figured it'd hold vacuum and allow for that to happen.
What actually happened was that the 1/2 shift got soft and sluggish versus the neck snapper that it was before. Evidently, putting vacuum on the modulator reduces line pressure to the trans, and the end result was a mushy 1/2 gear change.
Which left me no choice but to put the trans line back onto the manifold, and reinstall the ck valve to keep the modulator from seeing positive pressure.
The follow up road test confirmed, that I got my great 1/2 shift back.
That leaves me with this pointless thing with the power braker booster now the only thing plumbed to it (well and the derelict vacuum gauge..that is still there too) Something that I didnt need for the sake of the brakes at all.....
*sigh*
The Other thing I learned while doing this test drive today is that 6000 RPM is gonna be it for this thing. In other words,..revving it past that actually causes the boost to drop, just like it did with the Tiny Wheezer. Except Now with there's a completely different turbo in the mix., the only thing I can definitely say is.......................................that the Lag has returned, Other than that...It might be faster, It might be slower.
I decided that I would take my boost gauge and plumb it directly into the compressor housing Like Work Turbo wanted me to do, and then try and watch the gauge while running the engine up to RPM to see what it tells me for boost....The purpose being to determine if there was boost loss through the intercooler..But....That's a recipe for disaster at full throttle. I could only watch it at lower rpms, and what the gauge said, and what Tuner studio said were one in the same. Now, whether or not that changes at RPM's north of 6000,....
I'm gonna have to either have #1 ride along to watch that, or hook up the go-pro to do it instead.
I also have added new perks too.....For the first time since I've been beating on this engine,..I'm pretty sure I heard pinging.
I datalogged the outing..If anything, There probably is too much timing, a little too lean,...or Too much boost (car made a high of 23.3 psi) for the gas that's in the car.
As to be expected, Once I get the thing back home I immediately pull the plugs...
it looks like 1 and 4 have aluminum specs on them.
All 6 look to be way too hot either from fuel, timing, boost, or all of the above.
So then...This thing isn't going any faster than it presently is. If anything it'll be slower cause one things for damn sure....I'm not hurting this engine.
I've already returned the boost duty back to 40% after having bumped it to 44% in November at the track trying to get the tiny wheezer to go faster than it was. Ironically, I'll probably call Boost Labs and talk to the guy about changing the turbine housing to get rid of the lag, and what it makes, and how it runs after that will just have to be.
2021-02-04_14.58.59.mlg