Youre a cam snob, aintcha? Oh cmon, admit it. You know you are. Most of us are, to some extent. More cams, more power, goes the conventional wisdom. Cars with just one simply cant get the job done, right? Camshafts are damned sexy, even if we dont know what the hell they are or why. No DOHC head, no VTEC, no power (or at least less potential for any power), and all of the cache of your dads Lawn-Boy riding mower. Its an easy psychological rut to fall into, and one perpetuated by us media types. Bigger. More. Faster. Better. Right?
There are those who would argue vigorously with this assessment, and their arguments are convincing ones. Single-cam mills often pump more torque out of a given engine, or at least they do it at lower, more street-friendly revs. The simplicity of a single-cam engine, without so much of the attendant electronic foofaraw to futz with while trying to crank out power, borders on the quaint. Theres also the point that Civics like the 94 you see here didnt actually come with DOHC engines out of the factory. Does that discount the tweakability of an entire generation of Civics? Fat chance. Still think single-cammers cant crank out the grunt? Nelson Terra will change your mind in 12 seconds flat.
As an EMT trauma tech, Nelson is well aware of what it takes to get a heart pumpingwhether in the back of an ambulance or under the hood of his Civic. Tracheotomy? Turbo plumbing? Making holes and patching them upquicklyare what he does best. Seconds count when saving someones life, and he applied the same speed when building his Civic, two months from start to these photos. Nelson knows full well that his choice is an unconventional one, but his reasons are fairly straightforward: I was running a 94 last season, and I just started building on that. It was a money issue at firstmake power with what you have. We were considering a del Sol 1.6 DOHC at one time, but Ive been happy with this engine. It runs great; its got plenty of power. Now, in California, everyone and his mom has a DOHC conversion. Here in Massachusetts, its a popular swap, but its just not readily available. We dont have the skilled technicians out here who are familiar with that conversion.
To that end, Nelson did a large chunk of the conversion work himself and with his buddies. A lot of guys out here will send their stuff to California. We do everything here. We did the whole turbo kit in my garage, all the piping
I did send the turbo out, though; its from an 85 Saab; it was in great shape, so TEC upgraded it and totally rebuilt it. It kicks in at a nice low 2,300 rpm or so, and max boost is at 4 grand. The turbine housing is an AR48a tight housing for a car pushing this much boost. The limit for the stock ECM is 550cc injectors and a 30-pound boost cap, and Im running 26 pounds now, though the turbo itself is good for 35 pounds. Im hoping for 11.8s once its dialed in. And Im not using any of the color-coded Honda bearings; I use Clevite 77s everywhere. People think were going to seize it, that we have to go with Honda stuff
but its worked real good so far. Its also all stock valvetrain, and the rods are deburred Acura Integra LS rods. We took .020 off the big end and also floated and locked the pins. Its been solid.
Next Im going to mount a boost gauge on the downpipe; if the boost readings from the intake manifold and downpipe equal out, itll be time for a new housing. Until then, the T3-T04E is it
though greater plans are unfolding as we speak. This winter I want to convert this turbo to a full ball-bearing unit. Friends with Buick Grand Nationals say that theyre fantastic.
Nelson believes in the the-best-dyno-is-the-track philosophy, but admits that a chassis dyno helped him out once. Ive dynod the thing once, and I got 380 hp at 8,000 rpm. But I was only going low 13s, and we couldnt figure out why. Turns out that we needed to turn the sensitivity down on the J&S Safeguard; it was retarding ignition by about 20 degrees all the way down the track. We gained 100 hp from simply tuning the knock sensor.
And once hes at the track? I launch at 7 grand and just drop it; my redline is at 8,500 rpm, and I shift maybe 200 rpm below that. My best 60-foot with stock suspension is a 1.65 60-foot. Last season, I was timid and careful since it was a real street car; Id always bring extra axles. Theyre kind of a pain in the ass to change in the heat of the moment. But now Ive stripped a lot of weight out, and its less of a strain on the components. Next stop: 11s. And just one camshaft. Believe it, bumpstick snobs.