MN 914 build, Metal roof, Brembo brakes, Subaru EJ20TT, receiver hitch..., Info on my build Options

[914Subaru]

FS
I purchased this car in 2008 working on it off and on and around 2018 it was far from done but could be driven. Around Christmas time I jokingly asked my son to go with me to the 2020 Red Rocks Classic and to my surprise he said yes. From that point on it was a mad dash to get it ready and I worked on it all the way up until we left getting 3 hours of sleep the night before. I even installed some temporary carpet when we stop at Estes park for the night. 3,500 miles later I would have to say that was one of my all time favorite weeks of my life. The temporary carpet is still in the car with a few other loose ends to finish up.

The car is an amazing drive that zips around effortlessly.


Original fuchs wheels: 16 x 6 front 205/55R16 and 16 x 7 rear 225/50R16.
Calipers are Porsche 944 Turbo Brembo.
Rear brake rotors and E brake 911 and 911 center mount E-brake handle.
Front rotors are AP Racing 28mm x 328mm
Weltmeister adjustable front sway bar 19 mm diameter. Rear sway bar included but not installed.
944 CV joints, 911 stub shafts with T2 axles.
Transmission Subaru five speed with coupler and rear cover. Shift lever is Subaru with direct mechanical linkage rod.
Subaru twin turbo engine, Japan only, EJ 20 TT, completely stock(280hp)
The conversion utilizes all Subaru mounts including the top link eliminating vibration and noise.
Metal roof that stiffens and strengthens the chassis. Rear pinch welds on the B-pillar have been removed and fully TIG welded. The transition from the B pillar to the rear quarters is the shape you get after removing the trim and pinch weld.
The rear quarters are original metal that has been re-shaved for wider tires and to retain the narrow body look.
To save weight it has a fiberglass hood, trunk lid and rear bumper.
1-1/4 receiver hitch with cargo box mounts and cargo box included.
Originally a Texas car.
Paint is base clear to the original metalic silver color. Johnny’s Autobody in Wisconsin did the final bodywork and paint.

Picture of the fresh paint


This is what it looked like when I first got it home. The original car looks a lot better than it really was.


Typical truck rust repair and also the entire floor.



I was able to move the rotisserie in and out of the garage which was very handy for sandblasting. It was made entirely from stuff I purchased at an auction for about $40. The rotisserie is no more other that I still have the casters.




1987 Porsche 944 Turbo Calipers





Short Drive Video

https://www.youtube.com/watch?v=EMiUI5mhW50


Walk around video next to a 944

https://www.youtube.com/watch?v=SNIYW9a19X8


Cold Start Video

https://www.youtube.com/watch?v=6jXnhQcwF4Y


Shifter Video

https://www.youtube.com/watch?v=gP73spLjl5I

[914Subaru]

The Engine
2.0
Sequential Twin Turbo
275 HP
Redline 7,500 RPM
Engine code: EJ208DWBKE
Transmission TY754VBAAA 1st3.166 2nd1.882 3rd1.296 4th0.972 5th0.738 F.D.4.444
Doner car model BH5B5CD

Drivability;
Amazing torque at low RMP's and you can hear the little turbo making boost below 2000RPM. Plenty of power for normal driving including passing cars on a 2 lane road. A dip in power at 4000rpm then the beast is released and you're in race mode. Once you're in the second turbo it stays in that mode I think down to 3K rpm so once you're in the second turbo it will stay in. It's an interesting and amazing drive that requires judgement and control from the driver to make it shine and not an electric car that does everything for you. I see it as 2 modes, normal and race and they are very separate because of the dip for the second turbo to spool up.

This engine being a JDM is not compatible with most OBD2 code readers even though it is an OBD plug. Subaru SSM (Subaru Select Monitor) works. I use the cable and software from obdii365.com SUBARU FreeSSM V1.2.5 that works with a laptop.

Check Engine Light Codes (CEL)
With ignition OFF plug the black plug together. Turn the ignition ON and identify how many times the check engine light flashes (if any). This will be the error code stored in the ECU memory. Turn ignition OFF and unplug the connectors.
ECU light flashes to indicate the error code, the slow flashes which come first are the tens digits. The fast flashes that come second are the single digits. For example, an error code of 13 will be one slow flash and 3 quick flashes straight after the first flash, then there will be a short break and it will flash the sequence again.
11 Crank angle sensor, Open or Short
12 Starter switch, Open or Short
13 Cam angle sensor, Open or Short
21 Water temperature sensor, Open or Short
22 Knock sensor, Open or Short
23 Air flow sensor, Open or Short
24 ISC valve, Open or Short
31Throttle position sensor, Open or Short
32 O2 sensor, Open or Short
33 Speed sensor, Open or Short
38 AT torque down request, Open or Short
44 Supercharging oppression output, Open or Short
45 Atmospheric pressure sensor/ Absolute pressure change solenoid,Open or Short
61 Inhalation valve solenoid, Open or Short
62 Exhaust valve solenoid (vacuum), Open or Short
63 Supercharging pressure relief valve solenoid, Open or Short
64 Secondary waste gate solenoid, Open or Short
65 Differential pressure sensor, Open or Short
66 Sequential turbo system, No rise in pressure or pressure excessive (Over boost)
67 Exhaust valve solenoid (positive pressure), Open or Short
68 Exhaust valve duty solenoid, Open or Short

ECU Reset without a scan tool
With ignition OFF, locate the 2 black ECU check connectors and the 2 green ECU reset connectors. There will be one female and one male of each color (Black & Green).
Connect the black connectors together, and connect the green connectors together.
Start the vehicle and drive until the check engine light starts flashing. ENSURE THE VEHICLE SPEED REMAINS ABOVE 11 Km/h (7mph). Then bring vehicle to a stop when it is safe to do so. Stop engine and turn ignition OFF.
Disconnect the two black and two green connectors.
I have found twin turbo information and trouble shooting advise on subyclub.com


Compression Ratio 9:1 (US WRX is 8:1)
This is possible partly because of the forged, molybdenum coated pistons


The small turbo is always making boost. This is the smallest turbo I have ever seen.



This picture shows the engine and transmission from Japan as I received it. Everything was very clean and ports were carefully blocked off.

This picture shows wire harness and parts that showed up in great condition also.


Primary Turbo only

This diagram shows both turbos active.




From a JDM AWD Subaru Liberty B4. This is a right hand drive car only, it will not fit in a LH drive car because the brake booster interferes with the added primary turbo.
In wagon form The 1998 Subaru 2.0 twin turbo set a world speed record for a mass-produced turbocharged station wagon (1600cc-2000cc class) clocking 168.101mpg.




Notice the muffler, this is only on the primary turbo pipe, the secondary is a straight pipe. The turbos and cats take some of the sound out. With the single muffler on only the primary makes it quiet to drive around town and on the highway. Not having a muffler on the secondary makes it obvious when its on line making boost and it sounds good. Best of both worlds a nice quiet cruiser and a loud obnoxious fast car.



On 4 cylinder Subaru engines this belt will eliminate the AC and power steering pump.



I am using the 5 speed split case transmission that came with the engine with the Bremar cover and locking collar.