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Mustangs were carrying silly high corner speed through the bus-stop and pit exit chicane. It was laughable and quite painful to watch the potential of so much engineering be minimized. IMSA will adjust things... no choice...
Scott wheeled the 15 car for sure... but big congrats and thanks also to Multimatic for developing and building those things.
More importantly, THANKS and congrats to Nick and Fred (in advance) for investing and committing to demonstrate the true capabilities of a near-GT4 type S550 to our track-rat friends who were satisfied with the outcome of last weekend’s GT4 race.
Cannot WAIT to see the in-car video .
Looks great. Is that ABS or aluminum with textured paint?Fabricated a Dead Pedal support and attached to Floor Heat Shield:
View attachment 3449
Installed:
View attachment 3448
Looks great Nick.
Reason CPC is being used in the GT4 cars is simplicity and durability. The FPC is a great concept but has proven troublesome in high stress use not only to the engines themselves but the ancillary components such as alternators, starters and water pumps (!?!). Power in GT4 is restricted by the rules and IMSA has clamped down hard on the Mustang, Porsche and BMW were walking away from the Mustangs on the oval at Daytona so hopefully a little relief is coming. The cars were handling and braking extremely well and were in fact the quickest through the infield section. Scott Maxwell drove the hell out of the 15 car in the last stint to grab third but the straightaway disadvantage was too much to overcome.
Nick will prove that 525-530 reliable RWHP is available from his combination which will also need to either be ballasted or detuned for ST2.
Steve
I'm not looking for max power. Minimum weight and a flat torque curve has a lot more payback on a road course -- better braking, cornering and acceleration from weight reduction.
I'll need to tune out power to meet Power/Weight limits. But with the 350 intake, no cats, improved cold air intake, headers, a few internal tweaks, a tune, lower rotating mass from power train, wheels and brakes, 500+ rwhp is easily attainable (The stock 5.2 CPC Aluminator makes 580hp at the crank).
BTW, the cobra jet intake is good for power, but not torque lower down. I'd use it if I was Drag racing, but not on a road course. You also need to lower the engine or raise the hood for clearance.
I'm not looking for max power. Minimum weight and a flat torque curve has a lot more payback on a road course -- better braking, cornering and acceleration from weight reduction.
I'll need to tune out power to meet Power/Weight limits. But with the 350 intake, no cats, improved cold air intake, headers, a few internal tweaks, a tune, lower rotating mass from power train, wheels and brakes, 500+ rwhp is easily attainable (The stock 5.2 CPC Aluminator makes 580hp at the crank).
BTW, the cobra jet intake is good for power, but not torque lower down. I'd use it if I was Drag racing, but not on a road course. You also need to lower the engine or raise the hood for clearance.
KevinThe stock 5.2xs is rated at 580 at the crank with that cobra jet intake. Take that off and say bye bye to the extra 25-30 Hp. You won’t be 530 at the wheels with that setup
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Kevin
I don't believe the CJ is 25-30 HP better than the GT350 mani, maybe 15-20 so I stick with my 525-530 RWHP estimate for Nick's combo. (You guys have to understand who Nick has access to, his car was painted that color long before Multimatic showed their GT4 race cars) I do agree with 8250RPM that the CJ is the best all around intake right now, torque loss is not that great against base GT manifolds and the high RPM gains are the greatest. whatever the outcome the 58 car will very fast and competitive with Black Boss behind the wheel.
Steve
You are assuming the (conservative) Ford tune as a basis. Any race tuner will bring up a few more ponies but your logic is sound.Your still off even if you say only worth 20 hp. Take 560 crank and take out 10 percent for drive line loss (most likely more) and your at 504. More likely max out at 500 or a little less with that GT intake. The lighter wheels or driveshaft aren’t adding HP. They increase acceleration due to less rotational mass. You still have the friction loss through the trans and rear diff.
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