Isuzu I-Mark diesel

[truckinwagen]

goodness, its been awhile since I did anything but drive my car...

been moving, started a new job(working 50+ hours a week) and such, but back to going fast!

I just ordered a bunch of stuff from Jegs!

-lots of AN fittings and hose for a remote oil filter/cooler setup and feed/drain for the turbo
-an immersion oil heater that goes inside the oil pan(should be enough room) to help with the winter
-an oil separator for the crank breather

I also just got an oil cooler from a local guy for $5

gonna use a -10 AN bulkhead fitting with some o-rings to tap the oil pan for the turbo return(dont want to weld on the pan if I can, really dont want to risk warping it as I cant get another)

gonna try to make the turbo manifold soon too, and mount the supercharger agin too.

pics and updates to come as things happen.

-Owen

[truckinwagen]

just ordered the silicone couplers to install the intercooler and turbo along with the supercharger.

I am gonna try to have the car twin-charged by the 25th, when there is a local car show.

-Owen

[rabbitman]

just ordered the silicone couplers to install the intercooler and turbo along with the supercharger.

I am gonna try to have the car twin-charged by the 25th, when there is a local car show.

-Owen

That would be cool, how much boost do you figure that engine will hold?

[truckinwagen]

not really sure, but it has an iron head, MLS gasket, pretty robust bottom end, etc...

I'm gonna shoot for 30-ish for now and see how it does, then ramp it up from there.

-Owen

[truckinwagen]

got the boost pin cut today!

Before:


After:




gonna control smoke by changing the spring under the diaphragm.
the ramp goes past center of the pin to take full advantage of the pin travel in my isuzu pump( past center of the hole) which means I cant take full advantage of the travel with an offset cone...

also got a couple boxes of fittings, need to wait for one more before I can start installing all the goodies!

also scored some steel from the scrap yard at work, so the turbo manifold will be a modified log manifold for now, it will not be the best design, and will probably get changed sometime in the future, but it will do considering the time and monetary constraints on the project right now.

hoping to have a turbo hanging off the side of the motor by monday!

-Owen

[truckinwagen]

got the supercharger installed today!

much more refined than before, but same concept.

my new oil filler to clear the charger:


I also moved the breather to the side of the valve cover(just a barb fitting tapped into the VC)

and my new JEGS breather oil seperator:


seems to work well so far, it has a clear bowl with a drain fitting on the bottom.
and it all comes apart so you can clean the insides when it is really nasty.


the new boost pin is working great, a little too much smoke on boost at first, but I changed the spring for a stiffer one, and now all is good.

and I can do burnouts now!
left foot on brake, right foot to floor, and turn on the nitrous once the revs come up, tires brake loose!

didn't do a very big one(grocery store parking lot) but I am heading to a car show tomorrow(and another next weekend) so I will hopefully have some video to show you all soon!

-Owen

[Powered by Spearco]

Great progress.

Did you get any videos?

[truckinwagen]

no videos of burnouts, not even any pics.

I went to get my nitrous bottle refilled on friday, and they didn't finish with it until five minutes before they closed.
the shop was not open on saturday, so no burnouts for me...

just had a setback too.
my vac pump relay went out, so my bypass valve stuck closed(full boost) and driving all the way home at highway speeds at full boost shredded the belt...

the air cleaner adapter I made up for the charger(the one made out of lexan) failed due to vibrations, so the last part of my drive home was sans aircleaner(not far, but still not fun)

so I need to make a more permanent(read, metal) inlet adapter for the charger, and install the spring loaded tensioner so running at full boost for extended periods of time wont shred the belt.

also on the list is to install the intercooler, it never ends.

to add to the fun, I am heading down to Homer this weekend for my sisters wedding, so I wont get anything done for a while...

-Owen

[Powered by Spearco]

Ouch. Sorry for the bad news about your ride. Sometimes its trial and error with things like your build, but now you know.  .

Still would like to see the updates as progress is made.

[truckinwagen]

I will certainly keep you all updated, but it may take a while.
I need to do some work on the bike too...

-Owen

[truckinwagen]

got some more done today!
charger is back on, and new tensioner is up and running.

it first went together like this:


but I decided that the second idler was unnecessary, and cumbersome, so I removed it:



it works much better than before, still think it needs work, but what to do to make it better will come to me in time.

the only issue I have is that the tensioner will invariably tighten until it is at the stop(no matter how tight I make it) so that it does not have any adjustment to automatically take up slack as the belt stretches.

so we will see how long this belt lasts until it shreds, I'll make some changes then.

-Owen

[R.O.R-2.0]

can you not get a shorter belt? or move the tensioner closer to the belt?

[truckinwagen]

the only shorter belt is too short to even get over the crank and charger pulleys.

as for moving the tensioner, I will probably do that, but again, after this one meets its demise.

-Owen

[truckinwagen]

got some more done!

intercooler is now intalled(need to tidy up a bit, but it is in and running)











Im not a huge fan of the coupler on the intake manifold, I need to get another 45* coupler to straighten in out properly.

EGT is down about 300* on a long pull, and the piping after is too hot to touch before the intercooler, and cool to the touch after it.

-Owen

[81 vw pu]

EGT's down 300 with just an intercooler. Looks like thats my next move then!!!
Did you notice any more power?

That thing looks CRAZY COOL Owen.