Steve I'm guessing your torque curve is being measured in NM? The TQ and HP lines don't cross at 5250 RPM where they should over here in the colonies where we measure torque in ft/lbs. I only gave your second chart a cursory glance and the shapes make sense for a blown 2.0 L 6. The numbers just...
Tmoose,
The computers that plug into the OBDII port and report fuel consumption are only as good as the information they are provided. I have one called the ScanGauge II and it does a reasonable job of reporting mileage. It requires very deliberate refueling in order to correctly report to the...
As much as I want to cheer on another twincharging project, I just don't think this is the right time or right car. Steve, I think for the cost of ditching the Ogura and moving up to an M62, that you can definitely have the boost pressures you want all the way out to red line along with a...
Glad you replied back Steve.
What do most stock block turbocharged FTO engines make for power these days? This, minus lets say 10-15%, should be your goal if you choose to twincharge. Very rough appraisal here. I know nothing about the FTO motor except that a GPX has a 2.0 L V6 that makes about...
Steve,
Is maintaining boost pressure all the way to the 8200 RPM red line your only goal or do you have others as well? There are several good reasons to use compounded boost. I don't know if doing it just to be the first FTO on the block sporting compounded boost is the best reason though. If...
Sounds like the problem I had tuning a 1.8T 20V with a stand alone ECU a few years ago. Got the car running with the timing locked at 10° BTDC. Unfortunately I had to guess at the position of the crank timing trigger as the motor was already installed and unaccessible. Thus the timing was truly...
FWIW. The military, more specifically the Navy still uses separate fuels in the diesel/kerosene range. Occasionally the odd JP-8 fuel sample or seventeen ;) (1 quart jars each) may be dumped into a diesel powered piece of support equipment just to eliminate the HAZWASTE nuisance but in 13 years...
FWIW MegaSquirt has more than enough resolution to accurately control large injectors (like 46 pounders) at idle and low load. I know plenty of guys using 46 lb/hr or larger injectors with MS and they have no issues at all and still have good fuel economy.
I use 60 lb injectors on my 2.0...
Vortech intentionally designs their blowers around the idea of using the existing engine oiling system for lubrication. Magnuson, on the other hand, designs around a self-contained oil bath. I don't see a centrifugal blower as having smaller tolerances than a modern engine and, as such, see no...
I wouldn't use MTX gear box lube. Several OEMs have supercharger lube designed specifically for Roots blowers. I buy mine from the local Pontiac dealership but only because it is the closest GM car dealership to my house. You want "GM Vehicle Care Supercharger Oil" and it comes in 4 ounce...
Depending on the application and a whole bunch of variables, the most upstream portion of the intercooler will reach temps nearly equal to compressor discharge temps. Temps can easily exceed 300° F.
FWIW, I've never seen an air to air intercooler melt anything. The possibility certainly exists...
In that case the thermostat you're refering to is the plain coil or wax operated type. The coil spring type do modulate as engine temperatures change. BUT the coil types that I see open at a temperature quite a bit lower than the engines standard operating temp. So even if the engine temp does...
Your bypass valve requirements aren't going to change due to the type of compressor used. Once the charge leaves the compressor, it is nothing but an air mass of a given temperature, density and humidity. The bypass valve doesn't care whether the air pump has internal compression or not...
I don't have finished pictures of my twincharged conversion yet. The car is currently on stands in my garage undergoing ANOTHER clutch replacement and the oiling system is being upgraded with a 2 quart oil accumulator, braided hose and an oil cooler.
I do have this shot of the blower though...
