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Split Second
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Engine Tuning Components
Engine Tuning Components

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We have a new version of the AIC1 that controls six additional injectors. It is tailored specifically for the BMW N54 engine with a supplemental fuel rail. When coupled with larger turbos it is possible to double the horsepower of the stock engine.

The AIC1-V6H/EV6 comes with the R4 software that can be used to precisely tune the air/fuel ratio at high boost. The injectors are batch fired three times per cam revolution. All injectors are controlled by map table A. The stock TMAP sensor on the engine provides the voltage input to the AIC1.
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Good times with team Sparta/Bullet Performance at the NASA 25 hour endurance race at Thunderhill. We took first place in the E1 class and 5th overall.  The results speak to a very high level of preparation, teamwork and execution.  Well done.
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2014-12-08
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Supercharged Plymouth Prowler

We have seen a recent uptick in interest in the FTC1 for supercharged Plymouth Prowlers. Back in the day, many Prowlers were fitted with Paxton supercharger kits. That kit used an additional injector and timing retard module from Split Second.

In the years since, we have developed a new module called the FTC1-006B. It offers far more precise fuel delivery which results in improved smoothness and more power.

When the FTC1-006B is combined with the Enricher you get the ultimate tune for a supercharged Prowler. One of the photos below shows the FTC1-006B and Enricher combination installed on a Prowler.

The FTC1-006B comes pre-tuned for the Prowler. We dyno tuned a project vehicle to make sure that the fuel mixture and timing advance are just right. The chart below shows the healthy 287 hp and 251 ft-lbs of torque that we made on the dyno.
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2014-10-24
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Danny’s Ghia

This one has definitely been a labor of love.  More than a few late nights and a lot of helping hands were required to get this gorgeous Karmann Ghia to this point.

In addition to being a looker, it is also a runner.  This Ghia has a 2180cc engine with FK89 cam.  From there things get really crazy.  It has port fuel injection with a 19lb/hr fuel injector per cylinder.  The injection is fed by a Walbro fuel pump and 45 psi static fuel pressure.  Injection is controlled by a custom Split Second unit with separate maps for warm-up and normal run modes.

Just to make things really interesting, it also runs a throttle-by-wire setup that provides an adjustable higher idle after initial start.  The engine starts right up, settles into a nice idle and pulls strong.

One of a kind for sure.
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2014-10-24
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This beautiful E28 M5 came to us recently for a little touch-up tuning.

The S38 engine in this beast was built with a stroker crank and Mahle pistons to 3.8L and 12:1 compression. The head was ported and fitted with custom cams.

The MAF kit fits neatly and looks like it belongs there. Note that the inlet to the stock air box is opened up and fed through a 4 inch round tube.

We started by disconnecting the battery for 10 minutes to clear adaptation in the ECU. We disconnected the stock O2 sensor to keep the ECU in open loop.

Tuning began with setting the idle mixture and moved on to a light throttle cruise condition. Air/fuel ratio was set to 14.7:1 up until about ½ throttle. We were then ready to start on wide open throttle pulls. The tune came in nicely and netted 292 hp and 280 ft-lbs at the wheels.  Pretty sweet.
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2014-02-20
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