5.0 TECH TIPS #
FUEL SYSTEM – The KB BOOST A PUMP and ID1000 injectors supported 737RWHP on the automatic and 755RWHP on manual cars. That was max HP. Both will run low 10’s @ 16psi with 100% stock engines and suspension. And no headers, cams, heads, NOS etc. – just a 2.8 kit. The Boss 302 3.6L car tested for MM & FF Magazine made 845RWHP @ 21psi with a 100% stock fuel system and only a competition BOOST A PUMP and ID1000 injectors. The 2.8 Kenne Bell Kit with it’s ID1000 injectors, stock pump and NO BAP will support max 664RWHP manual trans at 11:1 AFR. NOTE: Stock fuel lines and rails are adequate, so save your money on expensive dual pump and plumbing upgrades.
IGNITION – Fires fine with stock ignition. BOOST A SPARK will probably not be necessary until 25 + psi.
SPARK PLUGS – Use NGK 6510 gapped at .035.
INJECTORS – The stock 5.0 uses a new style “short” EV14 injector in lieu of the popular and longer EV6 style. We chose the 47lb EV6 long style injectors on our 9-11 PSI 2.8 kits to make upgrading to larger inhectors quick, easy and economical. Upgrading on a Kenne Bell Kit does not require raising fuel rails with spacer kits, injector adaptors or new fuel rails. NOTE: Stock fuel rails will-and do- support 1400HP. At least they do on the Kenne Bell and Accufab dyno engines we’ve tested.
CLUTCH – The Centerforce Dual Disk will hold 1000HP yet has the same smooth low pedal pressure and driveability as stock.
TORQUE CONVERTER – PI (Performance Industries) dual clutch converter for high HP applications Prototype worked great.
SUSPENSION – The Eibach lowering kit is just right for height and ride quality. Just add the Nittos and hang on.
TIRES – Nitto NTO5R’s are hard to beat. We also use them on our Hemi’s, Camaros, and Shelby’ street test cars.
CAT BACK EXHAUST – Magnaflow 3” worked best lowering back pressure from 6psi to 0psi at 610RWHP. Louder than stock but not objectionable.
8/10 RIB KIT – See “Accessories.” 6 rib good to 15 PSI. Use 8 rib for 15-20psi 2.8,3.2 with ATI 7.88″ or Ford 6.6″. 10 rib available with ATI 7.88″ only.
ATI O.S. DAMPENER – Our 8 and 10 rib systems use the ATI damper. Stock is 6.6″ vs. 7.24”, 7.55” and 7.88” (+ 3PSI, + 4PSI and + 6PSI). ATI is the ONLY O.S. damper we’ve used that works reliably with the 5.0 and the ONLY damper we recommend. When using O.S. dampeners, use the correct 5.0” Kenne Bell 8-10 rib kit water pump pulley for clearance. Stock is 5.5” (6” with flange) leaving “O” clearance with an 8” lower. NOTE: Since the Kenne Bell 2.8 is over 20% larger capacity than a 2.3, it will produce 5PSI more boost with the same size pullies (ratio). See what larger 2.8L superchargers do for you – 16PSI with the stock 6.6” dampener and 3.25” SC pulley vs. 11PSI for a 2.3.
CALIBRATION & CUSTOM TUNING – All Kenne Bell kits are calibrated in house except for competition “tuner kits.” Our 50 State Legal kits do not require “custom tuning” unless modified, so save your money. We do not offer any custom tuning for headers, cams, throttle bodies, injectors etc. Check with us for a Kenne Bell Dealer Installer in your area if modifying our kits or adding non 50 State Legal product(s) that may affect driveability, emissions and/or performance.
