My 4.0ohv turbo build thread

[98blownranger]

a dyno will let you know your a/f and your power gains very helpfull when making changes, it may feel faster due to noise or less bottom end power. i would also like to see the power output you have gotten compare to a vortech setup.
what tbody do you have for sale pm me

 

[turbo cat]

once i have the cash i plan to do all the tuning myself. Its also more than ":it feels faster" the boost comes on around 2000 and stays until redline. Basically it has way more torque and you can feel the torque. WHo said turbochargers only build high rpm power? The 4.0 could barely lug aroudn the ploder now it can haul pretty good uphills and whereever it needs to go. Everyone who has rode in my truck can feell the difference. Its far from great and far from it potential however at this moment I dont have the needed funds for upgrades yet. I paln to tune it myself. So far everything has been done by ear and plugs. Ive got it running the best i can with what was laying around. I still have only about 150$ into the kit itself. A wideband will only run me 200ish and a fmu can be found for 20-50$. I plan to see how well the ecu will work with boost before i upgrade to MSII or the EECV with SCT or Tweecer. The TB i have for sale is a BBK 75mm tb off of 97-03 F150s with the 4.6L/5.4L motor 100$

 

[stackz]

just fyi, that's a TB03 garrett turbo. not a true T3, thats why it has that funky offset bolt hole in the footprint. I wouldnt take it much past 17psi as you'll just be pushing hot air and probably do more damage than good.

oh yeah, are you still at 5psi after your high pressure runs??

only curious as I know those early 4.0 engines love to tear up HG's and/or crack in the #6/#3 cylinders in the heads between the valves.

had a 92 4x4 sploder and it cracked the #6 head 3 times on me. had to pull like 20 heads at the u-pull just to get a good one...ugh...

couldnt imagine how well that cylinder is holding up with the extra stress from the boost pressure...

as for the added torque. its because the turbo is soo small versus the size of the engine. it can spool that tiny .42/.48 turbo like nothing which obviously helps it produce power a LOT sooner.

but still

 

[turbo cat]

the headgaskets were just redone a few months ago and the heads had no signs of cracks and this was after pushing nearly 15+psi thru the motor. Just because the turbo has an oddball flange dosent mean its not a T3. Garret made many different housings to go along with the T3 family. i do know about the cracking issues but it has to do with overheating. Ive had a few 4.0 cracked heads so far. One due to severe overheated detonation that caused the death rattle. The valves were smashed into the head, CCs were cracked and the middle CC was smashed sideways, cracks everywhere and yet the bottom end was reuseable. As far as 5 psi after high pressure runs that turbo just keeps going and going and going.....Ive used this specific turbo on a few custom setups so far.

 

[stackz]

well the simple thing remains. that is the replacement for the mitsu TE04H turbo. they share the same housings.

you cant simply unbolt that turbo center cartridge and bolt it to a standard T3 exhaust housing.

those turbos use ring clamps with little dowels to hold them together and in the correct clocked position.

standard T3's use a 6 bolt tri-clamp setup to hold them together and there are normally no position dowels in them.

but...its a mute point.

 

[CopyKat]

it can spool that tiny .42/.48 turbo like nothing which obviously helps it produce power a LOT sooner.

but still

That's what the trim is on that turbocat? The one I'm going to be using is .60 on the compressor, .63 on the exhaust.

 

[turbo cat]

Yeah i would actually like moving up to a T3 with a .63 turbine housing. It will be less restrictive at higher boost levels and rpms. I know all about the Te04h 13cs they don't use the same housings they have have tiny .38 ar housings. The scrolls are half the size of a chrysler T3. Im using 4 Te04hs on my 4.6L project. And you can clock the the mitsubishi turbos you just grind off the dowel pins.

started working on the flanges yesterday

 

[BlackBII]

I'm not trying to criticize you or anything, but it looks like you could use some practice with the torch!

Just a little shaky.

 

[turbo cat]

second time using the plasma cutter lol my goal was to stay inside/outside the lines which i accomplished

 

[burningRANGERtires]

any updates????

just want to see whats going on.. love this project

 

[turbo cat]

i have a new thread in this same section about my dyno run

 

[turbo cat]

So time to upgrade a little as you ca nsee Im adding another turbo to the hotside. Im keeping it simple all Im doing is boring a hole and adding a second t3 to the hotside. tap and run oil lines change the cold side a little bit and it should be good to go. This was just another t3 that was laying around. It should be up and running tomorrow sunday at the latest.

 

[Davis]

Wow!

That's by far the ugliest TT setup I've ever seen!

But still freakin' awesome.

 

[turbo cat]

Yep ugly but once the hood closes who cares its a beater rig. I shouldnt lose much spool time and using two will be alot less restrictive than a 4cyl turbo on a large displacement V6

 

[turbo cat]

Cut the flange out tonight on my break. Gettting up early tomorrow and getting to work.