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insane Inline Ii - turbo - Photo 26392955

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  • To get up to the numbers we were looking for we were prepared to go up to 30lbs of boost. At those boost levels, detonation can quickly kill an engine. In an effort to eliminate detonation, we coated the turbo with a C-186 coating from Streamline Custom Coatings to keep heat down, and ran a water-to-air intercooler to further reduce the temperature of the intake charge.
To get up to the numbers we were looking for we were prepared to go up to 30lbs of boost. At those boost levels, detonation can quickly kill an engine. In an effort to eliminate detonation, we coated the turbo with a C-186 coating from Streamline Custom Coatings to keep heat down, and ran a water-to-air intercooler to further reduce the temperature of the intake charge.
154 1001 01+693hp inline 6 jeep engine+westech To get up to the numbers we were looking for we were prepared to go up to 30lbs of boost. At those boost levels, detonation can quickly kill an engine. In an effort to eliminate detonation, we coated the turbo with a C-186 coating from Streamline Custom Coatings to keep heat down, and ran a water-to-air intercooler to further reduce the temperature of the intake charge. 154 1001 11 o+insane inline ii+dyno chart 31796706 In order to flow the air needed, we had to go outside the box on a few things. This prototype 70mm throttle body from F&B Performance is perched on a '99-and-up intake manifold that was coated with Cerakote by Streamline. We used 505 Performance's compressed graphite intake manifold gasket to keep the positive pressure from the turbo under control. The intake was gasket-matched to the head and throttle body. We used a Pacesetter header for exhaust gasses and modified it to feed the turbo. The upper part of the header was coated with Cerakote, but the bottom part we just hit with some high-temp paint after we finished modifying it. The three-into-two-into-one design of the Pacesetter header made it a natural choice for our turbo'd engine. We used an MSD coil and 6BTM ignition control module to ignite the mixture. In addition to the 6-series multiple spark and capacitive discharge, the BTM includes a built-in boost retard circuit to prevent detonation and can be adjusted from 1-degree per pound of boost to 3 degrees, up to a 15-degree maximum. We started off with a reserved 14-degree total timing and ended up at 25 degrees total for our big numbers. There was no way a stock Jeep fuel injection system would do what we needed it to do, so we went with an Accel Dual Sync Distributor and Thruster EFI controller kit.... ...The kit includes all the wiring to make the motor run using stock Jeep sensors, but gives infinite adjustability to things like timing and fuel delivery. We used a set of Mallory make-your-own wires to deliver spark.
We knew we were going to need a flywheel to bolt the engine to the dyno, so we went to Centerforce for one of its cast steel units. What none of us knew going into it was that none of the "normal" bellhousings that Westech has on the shelf would bolt to the Jeep engine.... ...Fortunately, Scotty's Jeep Truck and 4x4 Auto Wreckers had the CJ T-18 we needed in stock and we were able to get the engine bolted up to the dyno with minimal fuss. We used 118-octane Rockett brand gas for our runs, but when the engine goes into a Jeep, we want to run 91-octane, so we contacted Snow Performance for a Stage 3 boost cooler kit. Just the Snow Boost Cooler gave us a 25hp bump, but then we grew brave enough to bump the boost from about 17psi of boost to 19psi of boost. While the addition of the Snow Perfomance Stage 3 boost cooler got us 610hp, we ran out of turbo. Enter Comp Turbo with a CT3B ceramic ball bearing impeller. The same 70/84-sized turbo with better bearings from Comp Turbo gave us another 80hp.
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