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#16
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Its not a matter of what should be done first. Gaskets for adjusting the pump are under $5 and the IP takes 1/2 an afternoon to remove the rack limiter and about an hour or two to adjust the torque capsule. It can be done at any time, its not "one or the other".
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#17
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Forced, This graph shows output at the rear wheels, correct? If that is so, then a VNT would be just about all I am asking for. as your car has got to be close to 250 at the flywheel.. Is this after a bunch of fueling modifications? I am guessing that it must be? ...amazing how the low end is totally tranformed by a modern turbo.. I cannot imagine what a difference it makes when driving the car... but it has got to make a HUGE difference...
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46 WDX Power Wagon 84 300TDT daily driver |
#18
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FI, how can torque with VNT (~195) be that much higher over the stock one (~137)? You're only supplying air earlier. Also the VNT HP is about 10hp higher over the stock one. Air alone can't do that.
The HP graph looks nice and smooth . Over 100 hp starting from 2900 rpm if I'm not wrong .
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1992 Mercedes 190D 2.5 turbo 5sp manual. EGT+boost gauges. Boost controller set to ~14.5 psi. 1 1/4 turns on full load adjustment. LPG injection. Next in the list is water injection. |
#19
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No, just the turbo change. Fueling is as stock for both runs (except the ALDA which was adjusted a long time ago).
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#20
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Do they compensate for the differential in those dyno runs? (giving flywheel torque) Otherwise you would expect 3x the torque at the wheels in 4th gear.
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For Sale: 1982 MB 300TD 1995 Chevrolet Suburban 6.5TD Sold: 1980 IH Scout Traveler- Nissan SD33T Diesel |
#21
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I don't know. You'll have to contact Superflow.
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#22
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The IP will limit fuel based on RPM, pedal position, and boost pressure. FI has increased boost pressure and therefore the IP should be allowing more fuel (thus more power).
For more power, get a 603. You're already 195lb-ft @ 2400rpm stock, and with close to 150hp and a higher RPM range, you can hold low gear longer for pulling or climbing. If the 617 is free or already installed I understand. Quote:
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Gone to the dark side - Jeff |
#23
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#24
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But there's only so much fuel that the IP can provide, so only by increasing boost it doesn't necessarily mean you'll have more power (unless you're not burning all the fuel that is injected).
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1992 Mercedes 190D 2.5 turbo 5sp manual. EGT+boost gauges. Boost controller set to ~14.5 psi. 1 1/4 turns on full load adjustment. LPG injection. Next in the list is water injection. |
#25
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I didn't increase boost, I made it build boost much sooner.
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#26
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OK on the youtube block. Well, I've never seen any any formidable boost unloaded. Unless you have done something in the mods to make exhaust boost go up. Or run on a dyno?
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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting! |
#27
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A VNT turbo is all thats needed. I use the stock exhaust system. http://www.youtube.com/watch?v=eM7SNOc3nMY
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