MIKE@KENNEBELL Posted June 20, 2013 Report Share Posted June 20, 2013 985RWHP 100% STOCK '13 SHELBY WITH ONLY KENNE BELL 4.2L & BOOST-A-PUMP The August 2013 issue of Muscle Mustangs & Fast Fords Magazine features the Kenne Bell 985HP '13 Shelby GT500 test car. As always, our goal was to not make our kits look better than they really are, but instead to illustrate the HP potential of the Shelby 5.8 with ONLY a Kenne Bell Mammoth 4.2 Kit and venerable 20V BOOST-A-PUMP. The BAP supplied enough fuel with room to spare through the stock lines, rails and pumps on E85 which requires 30% more L/HR flow vs. gasoline. Injectors were 225lb rated Injector Dynamics. They can handle 91 or E85 pump with the flip of a tuning program. NEW 4.2 KIT No restrictive manifold and undersized throttle body or inlet system here. And no cheap roto molded plastic. The new 4.2 Mammoth Kit utilizes a new inlet manifold for increased firewall clearance. Air flow is identical to the standard 3.6/4.2 manifold. Note: The 4.2 is 1.5" longer than our 3.6. The new +2150 cfm "Gimme 5" Inlet System - the highest flow of any Shelby inlet tract - is standard with these kits and can add up to 80HP depending on HP level. 168mm 2150 or 2350 cfm throttle body matches the equally large 168mm inlet manifold. THE TEST CAR The car was 100% stock. No cat back, H-pipe, headers, ignition, cam, heads, NOS "crutch" etc. Pulled right off the street onto the dyno and run without ice water or water injection. Again, the objective was to give our customers and idea of the 4.2 Kit HP potential on a 100% stock Shelby with a 4.2, BAP, 225lb injectors, max spark (26 degrees), 29 psi and E85. Cams, headers, H-pipe and heads would, of course, add more HP. The following is some of the unique and over the top testing worth mentioning that may be helpful. HP Yes, it would have hit 1000 at one more psi of boost as it was making 20HP/psi boost. Unfortunately - as great as it is - the 5.8 rods didn't hold up above 985HP. That was an expensive test, but now we know what our customers shouldn't do. Gaskets held just fine as did the pistons, block and crank. E85 We couldn't find any accurate testing data on E85. We discovered that E85 is not 106-108 octane as many claim. We didn't test the E85 for octane because our old test lab was sold, so we just ran it until something failed, but it must be at least 116 to handle another 14 psi of boost at max timing and 11.5 AF without detonation, cooling or water injection. Great stuff. We will try to find a new lab to test fuel octane, which at this point may be academic. FUEL SYSTEM If the stock fuel system can handle 1000RWHP AND the 30% additional flow of E85, a BAP and larger injectors is all you need for gas or E85. No larger pumps/lines and rails are necessary for 99% of all applications. Fuel flow capacity and pressure was confirmed on our Fuel Flow Bench where the entire system was removed for evaluation. http://kennebell.net...uelpumptech.pdf E85 vs. HP To compare E85 and race gas, we do it the Kenne Bell way. No tuning, bolt ons, cooling, NOS or surprises. The only variable was the fuel. We registered a 40HP gain at the 800HP level and a mere 10-15 degree reduction in combustion temps. Didn't compare at 985. EXHAUST Removing the exhaust will eliminate all restriction at any selected HP level. "0" restriction and "0" HP gain even at 985HP. Oops. Does Ford have their act together on exhaust systems? And we never tested our Canadian built MRP H-pipe at that HP level, so don't have data on the cats. Expect +25HP for 1010 with the H-pipe as HP gain is proportional to air flow. CAMS Look at ANY stock cammed 5.8 (NA or supercharged) Shelby and notice the HP and TQ drop around 5500. We believe this to be a cam issue and not air flow restriction in the inlet or exhaust tract. Our stock test car was headed for 1060HP @ 7500. The 985 was at a low 6300. And it made 960 at a mere 5500! See dyno test and judge for yourself. What a motor. What a car. We recently engine dynoed a 5.4 with our 4.2 Kit at 1601 and it had another 100 in it (1700) with spark (26 vs. 14 degrees) and boost 29 vs. 26. So, a 7% larger 5.8 may just bump 1800 on E85 with a 4.2. Top THAT with a Chevy or Hemi. If interested in more details and test results on the amazing 5.8, check out kennebell.net "Shelby GT500 Tech & Tuning Tips." http://kennebell.net...13_TechTips.pdf Link to comment Share on other sites More sharing options...
2010KonaBlueGT Posted June 20, 2013 Report Share Posted June 20, 2013 985RWHP 100% STOCK '13 SHELBY WITH ONLY KENNE BELL 4.2L & BOOST-A-PUMP The August 2013 issue of Muscle Mustangs & Fast Fords Magazine features the Kenne Bell 985HP '13 Shelby GT500 test car. As always, our goal was to not make our kits look better than they really are, but instead to illustrate the HP potential of the Shelby 5.8 with ONLY a Kenne Bell Mammoth 4.2 Kit and venerable 20V BOOST-A-PUMP. The BAP supplied enough fuel with room to spare through the stock lines, rails and pumps on E85 which requires 30% more L/HR flow vs. gasoline. Injectors were 225lb rated Injector Dynamics. They can handle 91 or E85 pump with the flip of a tuning program. NEW 4.2 KIT No restrictive manifold and undersized throttle body or inlet system here. And no cheap roto molded plastic. The new 4.2 Mammoth Kit utilizes a new inlet manifold for increased firewall clearance. Air flow is identical to the standard 3.6/4.2 manifold. Note: The 4.2 is 1.5" longer than our 3.6. The new +2150 cfm "Gimme 5" Inlet System - the highest flow of any Shelby inlet tract - is standard with these kits and can add up to 80HP depending on HP level. 168mm 2150 or 2350 cfm throttle body matches the equally large 168mm inlet manifold. THE TEST CAR The car was 100% stock. No cat back, H-pipe, headers, ignition, cam, heads, NOS "crutch" etc. Pulled right off the street onto the dyno and run without ice water or water injection. Again, the objective was to give our customers and idea of the 4.2 Kit HP potential on a 100% stock Shelby with a 4.2, BAP, 225lb injectors, max spark (26 degrees), 29 psi and E85. Cams, headers, H-pipe and heads would, of course, add more HP. The following is some of the unique and over the top testing worth mentioning that may be helpful. HP Yes, it would have hit 1000 at one more psi of boost as it was making 20HP/psi boost. Unfortunately - as great as it is - the 5.8 rods didn't hold up above 985HP. That was an expensive test, but now we know what our customers shouldn't do. Gaskets held just fine as did the pistons, block and crank. E85 We couldn't find any accurate testing data on E85. We discovered that E85 is not 106-108 octane as many claim. We didn't test the E85 for octane because our old test lab was sold, so we just ran it until something failed, but it must be at least 116 to handle another 14 psi of boost at max timing and 11.5 AF without detonation, cooling or water injection. Great stuff. We will try to find a new lab to test fuel octane, which at this point may be academic. FUEL SYSTEM If the stock fuel system can handle 1000RWHP AND the 30% additional flow of E85, a BAP and larger injectors is all you need for gas or E85. No larger pumps/lines and rails are necessary for 99% of all applications. Fuel flow capacity and pressure was confirmed on our Fuel Flow Bench where the entire system was removed for evaluation. http://kennebell.net...uelpumptech.pdf E85 vs. HP To compare E85 and race gas, we do it the Kenne Bell way. No tuning, bolt ons, cooling, NOS or surprises. The only variable was the fuel. We registered a 40HP gain at the 800HP level and a mere 10-15 degree reduction in combustion temps. Didn't compare at 985. EXHAUST Removing the exhaust will eliminate all restriction at any selected HP level. "0" restriction and "0" HP gain even at 985HP. Oops. Does Ford have their act together on exhaust systems? And we never tested our Canadian built MRP H-pipe at that HP level, so don't have data on the cats. Expect +25HP for 1010 with the H-pipe as HP gain is proportional to air flow. CAMS Look at ANY stock cammed 5.8 (NA or supercharged) Shelby and notice the HP and TQ drop around 5500. We believe this to be a cam issue and not air flow restriction in the inlet or exhaust tract. Our stock test car was headed for 1060HP @ 7500. The 985 was at a low 6300. And it made 960 at a mere 5500! See dyno test and judge for yourself. What a motor. What a car. We recently engine dynoed a 5.4 with our 4.2 Kit at 1601 and it had another 100 in it (1700) with spark (26 vs. 14 degrees) and boost 29 vs. 26. So, a 7% larger 5.8 may just bump 1800 on E85 with a 4.2. Top THAT with a Chevy or Hemi. If interested in more details and test results on the amazing 5.8, check out kennebell.net "Shelby GT500 Tech & Tuning Tips." http://kennebell.net...13_TechTips.pdf Sorry dude but your font was PAINFULLY small. I resized it just so I could read it... Phill Link to comment Share on other sites More sharing options...
4Lights Posted June 21, 2013 Report Share Posted June 21, 2013 Sorry dude but your font was PAINFULLY small. I resized it just so I could read it... thank you for doing that, just wish I had seen your post first... insane power, Kenne Bell Link to comment Share on other sites More sharing options...
msb64 Posted June 21, 2013 Report Share Posted June 21, 2013 The easy way is just to hit Ctrl + to zoom in to the size of font you need, at least in Firefox. There will be something similar in other browsers as well. Link to comment Share on other sites More sharing options...
super hiss Posted August 17, 2013 Report Share Posted August 17, 2013 That blower, must sound like a whirl wind just at idle Link to comment Share on other sites More sharing options...
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