As everyone knows, RideTech is a suspension company. In addition to great parts, we’re known for building awesome cars too. A great handling car, however, is nothing without an engine. For 2018, our goal is to build THE FASTEST street legal autocross muscle car on the planet. It’s a tall order. To get there, we need an engine with lots of horsepower and the right power curve. Another RideTech fact — we build ultra-reliable cars. We don’t race typewriters and we don’t like turning wrenches in-between rounds. As such, our Motorsports program avoids high-strung, high maintenance parts and excessive engine output in favor of a balanced approach. Technology and product development have evolved to the point where “fast” and “reliable” can happily co-exist, so failure is never an option.
Over the years, RideTech has run numerous Chevrolet Performance crate engines including ZZ4s, LS3s, and LS7s. Their performance and value are tough to beat. However, to meet the Track 1 Camaro’s goals, we explored the possibility of building a custom LSR-based engine. Our demands include “drag-race-with-turns” autocross competition coupled with long distance road tours. Our Motorsports program has yielded volumes of electronic data that can be used to fine-tune our engine requirements. So like a great encore at the end of an epic rock concert, we wanted more. A custom engine from SDPC Raceshop was the answer.
The crew at SDPC Raceshop analyzed our plan and presented a 427 cubic inch combination including Wiseco 4.125” bore forged pistons connected to a Callies 4” stroke forged 4340 steel crank by way of Callies 6.125” forged rods. The almost square bore and stroke combination makes power everywhere — from our anticipated launch rpm to peak torque at the end of a long straight. The rotating assembly is housed in a lightweight, but indestructible (in our environment) Concept Performance 356-T6 LSR aluminum block. The design is heavily reinforced and super stable. A Dailey dry sump system provides reliable lubrication. We are notching the Track 1 Camaro’s OE crossmember to accommodate the heavy-duty external oil pump.
If you think the short block is cool, the cylinder heads are even more impressive. Brodix makes an LS7-based cylinder head called the BR7. CNC-ported by Frankenstein Engineering Dynamics, the heads flow monster amounts of air for great power without sacrificing bottom end torque. Due to the wide valve spacing, a minimum 4.125″ bore is required to use the BR7. Lightweight titanium valves and T&D adjustable rockers will help us raise our rev limiter setting for those big course layouts. SDP Raceshop designed a custom-spec hydraulic roller cam for our combination.
It all adds up to 1.56 horsepower per cubic inch. Nice. On the dyno, our naturally-aspirated SDPC Raceshop 427 makes 665 HP@6600 RPM and 590 Ft-lbs. of torque at 5600. We’re even more pleased with the way this engine makes power with 400 Ft-lbs. of torque at 4,000 rpm. The power curve is perfect for autocross. We approached this engine build from a technical perspective with the usual goals like horsepower, torque, peak rpm, launch rpm and engine weight. In addition to helping us achieve those goals, SDPC Raceshop helped us build our dream engine. As far as we’re concerned, this is the coolest NA engine combination that RideTech has ever run on or off the track. This engine is just full of cool hardware. With this key facet of the Track 1 Camaro locked and loaded, RideTech can’t wait to finish the car, turn the key and go testing. We’ll keep the midnight oil burning.
Scoggin-Dickey Parts Center
RideTech Motorsports Links
For more information about RideTech Track 1 Products, click HERE
To visit SmittysCustomAuto.com, click HERE
To View other parts in the Track 1 Camaro Series, click HERE