Engine Drive Shaft/ECU install and N/A Dyno run.
The next set was to get a set of Civic CRX SiR drive shafts to fit the new Vtec engine. I tried to source some new or second hand SiR drive shafts. But they were too hard to find. Well to find any that were any good. The drive shafts that came from the Integra DA6 front cut were just fine and fit perfectly. I ended up keeping the standard hubs, (eg. the hubs from the D-series engine). But found that the Integra drive shaft that fit perfectly. The '90 Integra drive shafts have two green stripes on each of the shafts. I also used the Integra intermediate shaft as they are NOT all the same on all B16A series models. The CRX SiR intermediate shaft is about 1" longer than the Integra intermediate shaft.
The clutch that I installed was the standard B16A clutch but modified with a stronger dia-frame and the pivot points changed for better clamping force which gives lighter pedal feel. The Clutch disc was changed for a four puk spring loaded brass button disc as below.
The Standard ECU for the B16A engine was thrown out and replaced with an after market ECU that can read boost and is fully 3D programmable (E.g. Fuel & Timing). I decided to re-use the MicroTech MT-8 Sequential Fire ECU from the previous D-Series Turbo buildup. Seeing it was a new computer and I never got to use it for long in the last turbo buildup.
I got the software upgraded to run full sequential and also got the Dash software loaded into it. This allows the connection of the MicroTech DASH instrument panel at a later date. I also requested an extra output to be installed for the V-tec solenoid. By default it comes with one output for the thermo fan. This computer also reads boost to 20PSI and 9000RPM. This ECU is programmed by a small 2 or 4 line handset, makes it easy to adjust while you are driving. Designed and Built in Australia, See Australia does make some good stuff. Check out the computer below.
I also decided to use the old Integra radiator as the hose outlets were in the perfect location. The Integra radiator just bolted right in. Amazing, The inlet and outlet hoses were also in the exact perfect location for the new engine. I just purchased two new radiator hoses (top & bottom) for a '99 Honda Civic Vti-R (U.S Si) and they fit just like a dream.
The computer was wired up and the the car was finally placed in the dyno. With the Japanese spec DA6 Integra B16A the engine should have 160HP at the flywheel. So I should expect between 135 and 140 HP at the wheels. Hondas have about a 15% loss through the tranny.
Once on the Dyno with the new computer tuned roughly it got exactly 140HP at the wheels. Check out the Dyno graph below as measured on the DynoJet. Not Bad for a Stock N/A (Naturally Aspirated) Japanese Import engine.
