06-04-2010, 06:38 AM
#180
(06-04-2010, 05:35 AM)ForcedInduction What about the automatic's VCV? That would give a more linear response to throttle input.
I am eliminating the VCV's and using a later model throttle assembly with the micro switch and single cam to control the vacuum. The VCV control cam could work, but you are just using two switches and two cams and a awful looking mess to have a little more control. The switch is fully adjustable and I can set the actuation anywhere in the range of throttle movement. I could see a benefit if my driving habits dictated that I depressed the throttle in a slow and methodical manner, but it is such a miniscule amount of time from 0 to 3/4 that I probably won't see a problem. I will test as planned and see how it works, I am a more hands on tester than a theoretical tester.
It is essentially going to work as a control for the S/C bypass. On gassers the bypass is open due to manifold vacuum until you floor it and the vacuum drops and the valve closes. From the feed back I was getting on the pump testing, smoke was not a real issue, so at low boost, along with my ALDA unit, I should be fine. I am only trying to alleviate some parasitic loss at idle and low RPM function of the S/C.
1982 300SD: 304,xxx Super M-pump with 7.5mm elements, 265 Nozzles, GT35 water cooled turbo, M90 Supercharger, A/W Intercooler, Serpentine drive belt, 3" SS exhaust with Magnaflow muffler, 240 breather, AEM dry Filter, Manual Boost Control, EGT / Boost / EMP gauges....Moved on to other projects
1995 F-350 7.3L PSD: 230,xxx 6.0 IC, DIY Stage 1 Injectors, 17* hpop, Tony Wildman Chip, John Wood Trans, 6.4L TC, 3" down pipe, 4" straight exhaust, 310 HP on wheel dyno - 8500# dually: 0-60 in 6.98
Suzuki Samurai: VW 1.9L TD, Trackick doubler transfer case (made by me) 5.8:1 transfer case gears, YJ springs front and rear with rear missing links, wheel base extended 14", diffs welded, some day a VNT.