H22 N/A Build - 215whp/156tq
Posted: Tue Sep 15, 2009 9:33 pm
Since this is the third forum this is being posted on, this is simply a copy/paste. Cal and datalog posted at end. I started on the cleaning/assembly of the motor this last spring. Just got it installed in July, then the wedding/honeymoon happened, so my friend had to wait until this weekend for me to finish the tune on the dyno. He summed up the points fairly well... This is copy/paste from the H-T thread started by the car's owner: Chassis: '94 Prelude VTEC (BB1) Engine: ('95 H22A1 rebuilt with the following parts at ~85k miles) -JDM Prelude Type-S Pistons (11:1 c/r) -Eagle Rods -Stock Crank Pulley -Kaizenspeed Balance Shaft Eliminator kit -Skunk2 Pro 2 Camshafts -Skunk2 Tuner Cam Gears (not tuned) -Skunk2 Pro Valve Springs w/ Spring base kit & Titanium Retainers -Stock Valves -Skunk2 Intake Manifold -Professional Products 68mm Throttle Body -Fujita (F5) 3\" Cold Air Intake Fuel: -Precision 440cc Injectors -Stock Fuel Pump Exhaust: -GReddy 4-2-1 Header w/ 2.5\" collector mod -Magnaflow Spun Metallic 3\" High Flow Cat -Custom 3\" Cat-back Exhaust with 2 resonators and Magnflow Muffler Transmission: -Competition Clutch Lightweight Flywheel (13.65 lbs) -Exedy Stage 1 Organic Racing Clutch -OBX LSD Tuned by 92typer on eCtune - SAE #'s reported 
Dyno was losing signal as you can see, so obviously the peak torque is wrong. This was our final run. We picked up 216.x whp SAE on another run, but slightly lower torque. Cam Gears have not been tuned yet. A/F was street tuned by 92typer a few days before our dyno appointment. Car was running full exhaust with cat and P/S and A/C is still intact. Note: After finishing up, we noticed that the intake pipe was not properly aligned and seated against the the throttle body. The intake pipe is at least 1/2-3/4\" offset to the TB opening and not sitting flush against the TB as it should, instead there is a noticeable gap. During the original install, it was indeed a tight and rather forced fit but I guess I just didn't think to check on it or notice it until after the dyno session. So the intake coupler has now stretched itself to this point over the last few weeks or so that the car sat before tuning. I'm sure that cost us some power too. Hurting power? Probably... 
We will be going back to the dyno within the next month or two most likely, with the intake problem rectified and we plan on exploring some other Header options, as the current GReddy header is definitely a weak link in the setup. A Big Thanks to everyone involved: Marshall (92typer) - for the engine build, tuning, tranny work, and more Stefan (onefstek) - for the awesome fab work on the custom 3\" exhaust Chris (racerboyb18c1) - for the work on the cylinder head DonF and 98vtec for their help assisting 92typer along the way eCtune - For their great tuning software Meridian Performance in Bellingham - For coming in on Saturday to let us use the dyno. Tim is a super cool guy and has a great shop. Highly recommended. 4th gear pull: http://www.youtube.com/watch?v=cTITirzbmJI
Dyno was losing signal as you can see, so obviously the peak torque is wrong. This was our final run. We picked up 216.x whp SAE on another run, but slightly lower torque. Cam Gears have not been tuned yet. A/F was street tuned by 92typer a few days before our dyno appointment. Car was running full exhaust with cat and P/S and A/C is still intact. Note: After finishing up, we noticed that the intake pipe was not properly aligned and seated against the the throttle body. The intake pipe is at least 1/2-3/4\" offset to the TB opening and not sitting flush against the TB as it should, instead there is a noticeable gap. During the original install, it was indeed a tight and rather forced fit but I guess I just didn't think to check on it or notice it until after the dyno session. So the intake coupler has now stretched itself to this point over the last few weeks or so that the car sat before tuning. I'm sure that cost us some power too. Hurting power? Probably... We will be going back to the dyno within the next month or two most likely, with the intake problem rectified and we plan on exploring some other Header options, as the current GReddy header is definitely a weak link in the setup. A Big Thanks to everyone involved: Marshall (92typer) - for the engine build, tuning, tranny work, and more Stefan (onefstek) - for the awesome fab work on the custom 3\" exhaust Chris (racerboyb18c1) - for the work on the cylinder head DonF and 98vtec for their help assisting 92typer along the way eCtune - For their great tuning software Meridian Performance in Bellingham - For coming in on Saturday to let us use the dyno. Tim is a super cool guy and has a great shop. Highly recommended. 4th gear pull: http://www.youtube.com/watch?v=cTITirzbmJI
