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Discussion starter · #321 ·
Hey steed your smoke and the slight KNOCK are more likely than not fuel related. You probably have an injector that is leaking a bit. you can crack the injector lines one at a time and see which one makes a difference in the white smoke. As for the fluttering oil cap when running its normal their is a lot of stuff moving around in the crankcase causing turbulence.
Nate
BTW, I like your setup and thank you for posting all this info.
Thanks, I don't have any smoke except for excess fuel. The knock is hardly noticeable, I didn't even notice it until my buddy pointed it out. It might even be something to do with the supercharger boosting at idle.
 
Discussion starter · #323 ·
Ive been slowly improving the truck, I added a programming port to my controller so I can retune it without removing it.



I also refined my progrmming a bit on the controller. I tracked down one of the engineers who wrote the actuator software for Holset. I have a pretty good understanding on how it works now lol.

 
Discussion starter · #324 ·
Figured it was time to do something about the supercharger hole, last week it rained hard enough to cool my engine. By the time I pulled into my drive way my water temp was all the way down......













I am debating on leaving the back of the cover open, I think it gives it a cool look. letting people know theres something there lol. I think it would also help cool the supercharger while the truck is moving.
 
Thanks, I don't have any smoke except for excess fuel. .
Ah in one of the forums (I googled supercharged 4bt Tacoma) I had read that you had an intermittent white smoke at idle, that would point to leaky injector/s.

What ever became of your controller?

Nate

Oops looked at the next post after I submitted my reply. Are you still looking for a way to sell the controllers. PM me if you are still looking.
 
Awesome work. I had been following your rig for a bit. I originally found your build as I wanted to put a M122 on my powerstroke and did so a few months ago. I upgraded recently to a Eaton 2.3 TVS which is a bolt on upgrade for the M122. I love the TVS. Lower temps, lots more air, higher effeciency, and quieter.
 
Discussion starter · #327 ·
Awesome work. I had been following your rig for a bit. I originally found your build as I wanted to put a M122 on my powerstroke and did so a few months ago. I upgraded recently to a Eaton 2.3 TVS which is a bolt on upgrade for the M122. I love the TVS. Lower temps, lots more air, higher effeciency, and quieter.
Thanks, the M122 is good size for the 4BT, if I can score a 2.3 TVS for the right price I might swap them out some day lol. I honestly don't care to much about my intake temps at this point, because my EGT temps are pretty low.

How are you running your TVS? is the charger feeding the turbo or the turbo feeding the charger?
 
Discussion starter · #328 ·
Ah in one of the forums (I googled supercharged 4bt Tacoma) I had read that you had an intermittent white smoke at idle, that would point to leaky injector/s.

What ever became of your controller?

Nate

Oops looked at the next post after I submitted my reply. Are you still looking for a way to sell the controllers. PM me if you are still looking.
At this point I am not building the controllers, ill reprogram the ones I sold. Maybe in a while I might start them back up. But at this point I don't have the time for them.
 
Thanks, the M122 is good size for the 4BT, if I can score a 2.3 TVS for the right price I might swap them out some day lol. I honestly don't care to much about my intake temps at this point, because my EGT temps are pretty low.

How are you running your TVS? is the charger feeding the turbo or the turbo feeding the charger?
The TVS feeds thru a FMIC then into the turbo. I'm only spinning the TVS to 11,000. @ 4000rpm I plan to have the snake bite overdriven gears to speed up the blower or build a double drive pulley system. The TVS red line is 19,000 rpm. I am actually running a VMP tuning 2nd generation TVS.
 
Hows the power feel? Looks like u need another boost gauge... lol
 
One thing about it, there sure isn't any boost lag on that engine. Touch the accelerator and it's there. Probably made a whole different animal out of the 4bt. It would be interesting to know how the fuel economy is affected with the sc versus turbos only. One sure thing, it definitely has the cool factor.
 
Discussion starter · #337 ·
Well I decided to build a new motor, not to sure where its going to end up but its going to have a 4BT block, P7100 pump with a QSB 4.5 head.

Here's some pictures of the block; made my own electrolysis rust removal tub to help clean it up. Came out pretty good, pulled out a lot of crud that was built up in the block. Only had it in there over night if I kept it in there for a few days it probably would of looked brand new. I used a 24 volt, 60 amp power supply for the electrolysis.













 
Isn't the 4.5 head a four valve? I thought you couldn't put one of those on a 3.9 because of the water and oil passages switched?

-vr4oaks
 
Discussion starter · #339 ·
Isn't the 4.5 head a four valve? I thought you couldn't put one of those on a 3.9 because of the water and oil passages switched?

-vr4oaks
Yup its a 4 valve! All of the 4BT block holes line up to the QSB 4.5 head. Now the head does have additional water passages in between the cylinders. I'm going to tap and plug them. Other then that, everything lines up.

Another issue is the injector tip holes are 8 mm, I'm going to drill them out to 9mm. Either use 9mm tips or the 9 to 7 reducer.

This is a slow build, cleaned the block up which is now getting powder coated. Next is getting the head machined in a month or two then pistons. I don't except this to be together until next summer.
 
On the injectors, why not use the 24 valve Dodge units. They would be a direct bolt in. You'd need the injectors, hold downs, and delivery tubes. Just like putting a P pump on a 24 valve. For pistons, the common rails seem to have a better combustion chamber. Are you sure all the oil passages line up? I looked at using one of those heads and there were several that didn't match. You might could bore holes in the block for the little water passages to match the head. Don't know how critical they are to the head cooling. You might want to compare a 16 valve head gasket to the 8 valve.
 
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