1993 BMW E36 Reborn with 535 HP of American Muscle

Many believe in the doctrine of rebirth that the Soul can return to a new body, perhaps as a plant, maybe a goat, or in this case, a clean 1993 325is — the belief that one’s energy never really dies. So, when Rob Leech, owner of Tunerworks Performance Inc. based in Calgary, Canada, decided to play God with his E36, he did so in divine fashion, resurrecting it into a 535-hp monster powered by a GM LS1 (C5 Corvette) engine and the Soul of an M3 EVO.

Blending the Best of Both Worlds: Euro-Spec E36 Meets US-Spec 325is

Tunerworks’ 1993 BMW E36. Photo: Amee Reehal

Rob’s car began life as a regular 3-series—a well-behaved, morally correct 325is he purchased with intentions of modifying. Good karma quickly led to an M3 conversion, Euro-spec, of course. While the European M3 never crossed the Atlantic in the late ’90s, North Americans got stuck with the less adept 3.0L 240-hp “EVO counterpart.”

“I used my car for instruction and personal use at the track on a regular basis, and it became clear the turbo just wasn’t suited for this. The lag and heat were obvious signs.”

As a performance shop owner, Rob wasn’t having it, so he did the next best thing: purchase a 1996 E36 M3 Euro EVO, everything but the shell, and shipped it over. Upon receiving it, he slapped the parts into his current 1993 E36 and, with some extra parts, managed to squeeze another 20 hp out of the 3.2L 320-hp Euro M3 engine.

A Turbo-Less BMW 3 Series Built to Outclass a Porsche 996 GT2 in Every Way

Tunerworks 1993 BMW E36 — Tunerworks’ 1993 BMW E36. Photo: Amee Reehal

0-60 MPH: 4.0 seconds
1/4 Mile: in 12.0 seconds @ 123mph
Top Speed: 188 mph
Skidpad: 0.95 g
Fuel Economy: poor

As a track instructor with the BMW and Porsche clubs in town, Rob’s E36 had seen countless days at the track, which began to take its toll, as Rob explains, “I used my car for instruction and personal use at the track on a regular basis, and it became clear the turbo just wasn’t suited for this. The lag and heat were obvious signs.” Unsuited, coupled with the unquenchable thirst for more power, encouraged an awakening, “I definitely wanted more power but without a turbo,” Rob continues, “to build the most complete, most capable street and track BMW in the world…something to top a Porsche 996 GT2 in all categories.”

Those bold words by an equally bold guy who sold his engine (to a person in California who is apparently winning races, no less) and led his beloved ride down a path of Self-Realization—a path of transformation, full of perfection and eternal bliss, in search of a new life of American muscle fused with German engineering.

Opting for an American V8 Over the German V6

1993 BMW E36 engine — Tunerworks’ 1993 BMW E36. Photo: Amee Reehal

Even as a Euro performance specialist who has built, both for himself and his clients, several BMW projects (including a ’99 M3 Cab featured in the November 04 issue of PerformanceBMW), Rob claims he’s not a ‘BMW Guy,’ in the sense that he was not absolutely set on tuning a BMW for this project. He simply wanted the ideal platform for what he wanted to achieve, which happened to be a BMW.

“It’s safe to say the headers cost more than the car!”

Whether this quasi homage-to-the-BMW statement makes any sense or not, all that matters is the rationale for the C5 Corvette engine and the remarkable installation that went along with it. With the mandate to build a great street car without compromise on the track, the goal was to use an engine build for the broad power band with loads of power without being too ‘peaky;’ an engine designed to run continuously at high RPM.

So why go with an American V8? As Rob explains, “Because it’s compact and lighter. The BMW engine has an iron block with aluminum head, thus this V8 is actually lighter than the V6. Plus it makes my car go faster!” Indeed.

E36 Transformation: Nothing Pre-Made, Everything Custom

Tunerworks’ 1993 BMW E36. Photo: Amee Reehal

If karma exists, and good deeds in the previous life lead to a new life of comfort, success, and 0-60 in 4.0 seconds, then this ’93 E36 must have been holy in some capacity to be blessed with a Corvette power plant. But not without consequences, and in this case, countless hours of labour with endless custom fabrications.

“I picked the factory 1998 M3 aero-kit because factory components have had the most wind tunnel testing, as opposed to other aftermarket products.”

From the chassis to the engine, virtually everything had to be custom-made, including anything and everything attaching the mammoth engine to the car, with parts as simple as fuel lines. The most challenging part of the build, however, was the headers.

“We went through 6 revisions before we could get it right, spending nearly 100 hours. It’s safe to say the headers cost more than the car!” Rob states. And all this after he consulted on a previous LS1/E36 project spearheaded by his friends Paul Botting and Trevor Petrow, who suffered tenfold with their attempt without the same level of success.

A Rare Touch: Carbon Fiber Driveshaft for Lightweight Performance

The lightweight driveshaft is definitely noteworthy. “The driveshaft is carbon fibre, which is very unique, “ Rob says, “it’s extremely light, only 14lbs, and the reduced vibration makes a huge difference as well.” The drivetrain includes a T56 6-speed transmission and Fidanza aluminum flywheel with a SPEC Stage 3 clutch. Custom parts include a BMW subframe with urethane motor mounts, a transmission brace with a urethane mount, and a custom shifter.

Clean, Minimalist Styling Inside and Out

The exterior styling is very clean and sharp, the mark of a striking E36 that has aged exceptionally well since ‘93, with a bodykit that retains the original lines. Ironically, for someone who sells aftermarket gear, Rob opted for an OEM kit, justified by claiming, “I picked the factory 1998 M3 aero-kit because factory components have had the most wind tunnel testing, as opposed to other aftermarket products.” Styling upgrades include:

Complete 1998 M3 aero-kit
Rear lip spoiler
Black kidney grills
Euro headlights with HID upgrade
Euro clear taillights
Brake ducts to replace driving lamps

It certainly makes sense and looks good. Other cosmetics include black kidney grills, Euro headlights with an HID upgrade along with Euro clear lighting, a rear lip spoiler, and brake ducts to replace driving lamps.

The interior is equally striking, including the Koenig Germany sports seats with Schroth harness, which Rob feels “provide the most lateral support of any sport bucket (excluding race seats).” Again, nice and simple, from the Momo Corse wheel and UUC stainless steel shift knob to the Euro M3 gauge cluster and Nakamichi CD player. The goods inside Rob’s car include:

Koenig Germany sport seats
Schroth harness
Euro M3 gauge cluster
Custom VDO gauges
UUC stainless knob
Hamann pedals
Momo Corse wheel
Nakamichi CD player
HOPLAP lap timer

Tunerworks 1993 BMW E36 seats — Tunerworks’ 1993 BMW E36. Photo: Amee Reehal

E36 Coupe Enhanced with Upgraded Wheels, Suspension, and Footwork

Tunerworks 1993 BMW E36 black wheels — Tunerworks’ 1993 BMW E36. Photo: Amee Reehal

What would the transmigration of this Soul be without new wheels? Absolutely nothing, so this M3 rolls on black custom forged 18×9” wheels wrapped in 255/35/18 tires on the streets and Kosei 17×8.5” with 255/40/17 Toyo RA1 rubber for the track.

“My suspension was chosen for a wide range of adjustability, particularly to adjust ride height and stiffness of the shocks as well as the chamber and toe settings.”

Stopping assembly includes a Stoptech 4-wheel 332mm big brake upgrade paired with Stoptech SS brake lines. Rob chose these brakes because of their size, but they also allow him to run these 17” and 18” wheels for track and street, respectively. “Stoptech does the best job creating balanced brake kits while allowing me to change the brake pads to track specific easily.”

“My suspension was chosen for a wide range of adjustability, particularly to adjust ride height and stiffness of the shocks as well as the chamber and toe settings.” Rob explains. This setup includes a Ground Control coilover kit with Koni dampers and custom springs rates, and Ground Control camber/caster plates. The BMW Motorsport strut brace, Ground Control rear shock mounts, Eibach sway bars, and Powerflex bushings all help with rigidity.

Takeaway

So, is there a moral to this tale of reincarnation and multiple lives of an E36? Perhaps a profound doctrine of divine justice, imposed or enforced by the rules of the Universe? No, not really. But while he looks nothing like A.C. Bhaktivedanta Swami Prabhupada, Rob is somewhat of a modern-day BMW Hare Krishna. So if you see him wandering the Heathrow or LAX airports preaching the word of incredible engine swaps and power gain enlightenment, you should really stop and listen (and if you can, spare him some change).