DEJON-Mitsu 16g Turbo Install

[DEJON-Dave]

I recently finished installing a Mitu EVO3 16 turbo on my GXP. Here’s pictures. This is what I used to run 25psi boost to redline. The 16g is rated at 375hp and DSM-EVO guys have run into the 10’s with it. Boost is all in at 3300 in 3rd gear which is only about 300rpm higher than our factory Borg-Warner turbo. I made an elbow adapter to mount the 16g to the stock exhaust manifold. See pic., this prototype is made from plain steel and steel flanges, then coated with hi-temp powder coating. This put the 16g about 1.38 inches higher than the stock turbo. We made an extension to fit to the stock oil drain line. The 16g has the same 2.375dia turbine inlet as a ported 16g. It has an internal wastegate similar design to ours, but requires a different down pipe with different flange.

We built the down pipe without a cat for lower back pressure and it does make the exhaust louder. The down pipe is made from aluminized steel and coated with the same hi-temp exhaust powder coating. It reuses the factory studs to connect to the exhaust. The 02 sensor is in the factory position. We run a 2nd AEM Uego 02 to generate HP Scan data and monitor real time. We modified the computer program via HPTuners to shut off the cat error codes.

We used 2gDSM water lines. The factory lower water line coming from the back of the block was cut about 4” from the banjo bolt, the cut tubing end flared and a new hose cut to connect it to the front of the16g via the 2gDSM line. The hose is silicone rubber with a 1200degF fiberglass sleeve to protect it. The front line needs only a longer hose to connect the factory upper block outlet to the other 2gDSM water line bolted to the 16g center section at the rear. Oil is supplied via a SS braided Teflon 4AN hose attached to the block via a 14mm banjo bolt.

The compressor is ported to gasket match the 1.75” OD. outlet elbow we made and clocked to align with the factory right side intercooler pipe or our RIP-SSC. The right IC pipe has a tube welded under it to fit any BOV made for a DSM or EVO. We used an EVO9 Compressor Bypass Valve. But the Greddy RS with recirc tube and one of our DSM/EVO mounting flanges will work.

When we designed our CIP-SS intake pipe, we deliberately replaced only the air box section. To fit the 16g, we only had to make the section from the turbo to the air box. So you can use a factory or modified factory airbox or our CIP-SS. It has a tube welded under it to connect to the compressor bypass valve. The braided SS vent hoses coming from the valve cover attach to this intake also.

The factory turbo heat shield fits over the 16g using the two top screws. We did not cut or modify any other factory brackets or parts.

How does it drive?… like a stuck pig. Stomp the pedal in 2nd gear and you spin the tires. We did increase fuel (lower AFR) via HP Tuners for safety and to keep away from knock.

Why not use an external wastegate? Internals are easer to package and less expensive. Internals don’t hold high boost as well, but we don’t expect to run over 28psi and it should handle that. We had to swap the Mitsu WGA for a Garrett High Pressure WGA to fit the space limited by the power steering can and hoses.

Why not use a venting BOV instead of re-circulating? 1. I like to keep the compressor spooled between shifts and this helps 2. do everything to keep out of compressor surge (especially on a plain bearing turbo). 3. No one yet offers an ECU program modded to handle the sudden dump of “MAS read air”.

I plan to offer a kit as soon I get all components priced.

[GhostRL]

Will a 20g fit in the same spot?

[boostednlinefor]

So... will this be offered as a kit sometime soon?

[mena661]

How come you can't use the stock wideband?

[Lithium Lotus]

That's freaking awesome! I wonder what kind of numbers it'll make, I would guess 350whp+. And it's a good thing 16g's are cheap now.

[DEJON-Dave]

Originally Posted by GhostRL Will a 20g fit in the same spot?

Yes, but you'll have to work out the wastegate actuator hookup and it may require some trimming of the relay box bracket.

[DEJON-Dave]

Originally Posted by boostednlinefor So... will this be offered as a kit sometime soon?

Yes, as soon as I work out pricing. I plan to make the elbow adapter from Stainless which I don't have priced yet. I sell Mitsu 16g's now and have been porting them for a few years.

[DEJON-Dave]

Originally Posted by mena661 How come you can't use the stock wideband?

HP tuners software currently does not read the factory wideband 02 sensor. For product development I needed to see what it is and log with the other parameters, so I installed an AEM UEGO and read it as a custom input.

[shabby]

Dave you are on fire, keep it up

[SolAnderson]

WOW!!!
You're giving away all your secrets...but we appreciate it.

I can say I would be VERY much interested in purchasing a proven kit of this sort.
My only concern(s) were/are:
-No Cat
"built the down pipe without a cat"
Concern: Emissions inspections
Possible solution - high flow cat. I have a "Solo" brand high flow.

-HPtuners mods
"modified the computer program via HPTuners to shut off the cat error codes"
Concern: Unable to "flash" the ECM back to stock if/as necessary.
Possible solution - ???

Not criticizing, just offering my honest opinion/feedback as to what might cause me hesitation in a purchase decision.


Any chance you can finish your kit design along these lines?

Again, thanks for putting the research time into our cars. I for one am very appreciative of the effort.

Originally Posted by DEJON-Dave I recently finished installing a Mitu EVO3 16 turbo on my GXP. Here’s pictures. This is what I used to run 25psi boost to redline. The 16g is rated at 375hp and DSM-EVO guys have run into the 10’s with it. Boost is all in at 3300 in 3rd gear which is only about 300rpm higher than our factory Borg-Warner turbo. I made an elbow adapter to mount the 16g to the stock exhaust manifold. See pic., this prototype is made from plain steel and steel flanges, then coated with hi-temp powder coating. This put the 16g about 1.38 inches higher than the stock turbo. We made an extension to fit to the stock oil drain line. The 16g has the same 2.375dia turbine inlet as a ported 16g. It has an internal wastegate similar design to ours, but requires a different down pipe with different flange. We built the down pipe without a cat for lower back pressure and it does make the exhaust louder. The down pipe is made from aluminized steel and coated with the same hi-temp exhaust powder coating. It reuses the factory studs to connect to the exhaust. The 02 sensor is in the factory position. We run a 2nd AEM Uego 02 to generate HP Scan data and monitor real time. We modified the computer program via HPTuners to shut off the cat error codes. We used 2gDSM water lines. The factory lower water line coming from the back of the block was cut about 4” from the banjo bolt, the cut tubing end flared and a new hose cut to connect it to the front of the16g via the 2gDSM line. The hose is silicone rubber with a 1200degF fiberglass sleeve to protect it. The front line needs only a longer hose to connect the factory upper block outlet to the other 2gDSM water line bolted to the 16g center section at the rear. Oil is supplied via a SS braided Teflon 4AN hose attached to the block via a 14mm banjo bolt. The compressor is ported to gasket match the 1.75” OD. outlet elbow we made and clocked to align with the factory right side intercooler pipe or our RIP-SSC. The right IC pipe has a tube welded under it to fit any BOV made for a DSM or EVO. We used an EVO9 Compressor Bypass Valve. But the Greddy RS with recirc tube and one of our DSM/EVO mounting flanges will work. When we designed our CIP-SS intake pipe, we deliberately replaced only the air box section. To fit the 16g, we only had to make the section from the turbo to the air box. So you can use a factory or modified factory airbox or our CIP-SS. It has a tube welded under it to connect to the compressor bypass valve. The braided SS vent hoses coming from the valve cover attach to this intake also. The factory turbo heat shield fits over the 16g using the two top screws. We did not cut or modify any other factory brackets or parts. How does it drive?… like a stuck pig. Stomp the pedal in 2nd gear and you spin the tires. We did increase fuel (lower AFR) via HP Tuners for safety and to keep away from knock. Why not use an external wastegate? Internals are easer to package and less expensive. Internals don’t hold high boost as well, but we don’t expect to run over 28psi and it should handle that. We had to swap the Mitsu WGA for a Garrett High Pressure WGA to fit the space limited by the power steering can and hoses. Why not use a venting BOV instead of re-circulating? 1. I like to keep the compressor spooled between shifts and this helps 2. do everything to keep out of compressor surge (especially on a plain bearing turbo). 3. No one yet offers an ECU program modded to handle the sudden dump of “MAS read air”. I plan to offer a kit as soon I get all components priced.

[BaldTurboFreak]

I think I can handle this one, Dave my parts are in the same boat.

The Cat situation :
will require you to have a shop or yourself if your capable to cut the monolith from your solo cat and weld it into place using dave's catless dp as parts.

HPT: If your going to go hotroddin' your car you should own your own copy of HPT pro. That way you can flash dave's tune as a starter, keep your stock tune in a safe place , and have the capability to use the scanner to log any issues you may be having with your tune (KR, lean boost cutback ,etc)
You can post your scan's up when you get into trouble and have a pro take a look. Then suggest some changes.

[DEJON-Dave]

Originally Posted by SolAnderson WOW!!! You're giving away all your secrets...but we appreciate it. I can say I would be VERY much interested in purchasing a proven kit of this sort. My only concern(s) were/are: -No Cat "built the down pipe without a cat" Concern: Emissions inspections Possible solution - high flow cat. I have a "Solo" brand high flow. -HPtuners mods "modified the computer program via HPTuners to shut off the cat error codes" Concern: Unable to "flash" the ECM back to stock if/as necessary. Possible solution - ??? Not criticizing, just offering my honest opinion/feedback as to what might cause me hesitation in a purchase decision. Any chance you can finish your kit design along these lines? Again, thanks for putting the research time into our cars. I for one am very appreciative of the effort.

Thanks for the input. I've located a OBDII legal CAT that I think will fit and plan to buy it tomorrow and modify my prototype (on my car). The non-cat downpipe allows me to run race gas this spring when the tracks open.

With HPTuners, you download your stock tune first and can reflash it back at any time

[DEJON-Dave]

I installed a Magnaflow Cat in the downpipe yesterday and it fits up fine, here's a pic.
Remember this is the prototype so it's a little cruder than production parts will be.
The car ran the same as before, reaching the same boost and just as quickly.

[kwtoxman]

Mmmm! Thx for the update!

kw.........

[GhostRL]

If I read your parts list on the website correctly, this kit comes with the right side intercooler pipe as well as the intake pipe. You should add the left side intercooler pipe as an option, so you'd have a matching pair.

You'd also need the IAT2 tricker, wouldn't you? Should also be either part of the kit or an option to add-on on the same page (I know you can seperately but still). Price hurts, but is about what I expected, you get a LOT of parts for $1800! Are you going to offer an intro price or GP for the kits? Coming home from iraq in 2 months, could make it a birthday/homecoming present to myself