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Driving at high RPMs - Question
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<blockquote data-quote="CobraRed01" data-source="post: 2363231" data-attributes="member: 11346"><p>So do I, but be careful with modding and showing signs that you've been racing. Guess if you stay on the highway you'll be OK.</p><p></p><p></p><p></p><p>I believe the reason that Ford went to DOHC and aluminum is weight-savings (ironically enough) and fuel economy. I'm also sure it also had alot to do with remaining credible as a manufacturer of up-to-date, competitive, performance cars (both street and track). Just look at some of the gas economy figures reported with Mod 4.6 motors...pretty damn good considering the HP they put out. This is definitely an "advance" over the older pushrod motors. Add in computer control and EFI and you can dial these motors in very precisely. Ford/SVT should definitely be lauded for this. One reason I bought my 2001 is because I could rationalize the decent gas mileage...really. Weight-wise, considering the extra weight of the DOHC setup, an aluminum block would be required. Now the 03/04 Fe block with SC AND DOHC is incredibly heavy....Ford had to go this way because they could not build a REALLY dependable Al block. Now we understand why they went the Incredible HP Route with the GT500...they have to compensate for the EXTRA weight!!! Not a problem if you like to go in a straight line, but weight, as you will read in the GT500 forum is a big concern. GT500 is still an awesome accomplishment. </p><p></p><p>quadcammer...we alluded to the "history" of Modular development earlier...you said 12 years, I said over 20....If you read about the 351 Cleveland (a 70's motor as in my 1970 Cyclone GT) in the corner-carvers.com forum you will hear how that motor ALSO had oiling problems on the track. Hence, Ford should have learned from that experience and applied it moving forward. And that problem has nothing to do with the DOHC setup, it's basic roadrace engine tech. </p><p></p><p>Here's my recommended solution to Ford/SVT....if and when you start developing the next Al DOHC N/A block put the damn thing in a Mustang/Cobra and run it around a racetrack - under G's - NON-STOP for a few WEEKS. Signup a bunch of Cobra/Mustang enthusiasts to do the driving....we'll be jumping over each other to be in on this test....won't cost you a dime in professional drivers. Now that's the kind of engine test Cobra OT/Roadracers would really benefit from. A 600-hour BENCH test is useless for a roadrace engine. You need G's!!!</p></blockquote><p></p>
[QUOTE="CobraRed01, post: 2363231, member: 11346"] So do I, but be careful with modding and showing signs that you've been racing. Guess if you stay on the highway you'll be OK. I believe the reason that Ford went to DOHC and aluminum is weight-savings (ironically enough) and fuel economy. I'm also sure it also had alot to do with remaining credible as a manufacturer of up-to-date, competitive, performance cars (both street and track). Just look at some of the gas economy figures reported with Mod 4.6 motors...pretty damn good considering the HP they put out. This is definitely an "advance" over the older pushrod motors. Add in computer control and EFI and you can dial these motors in very precisely. Ford/SVT should definitely be lauded for this. One reason I bought my 2001 is because I could rationalize the decent gas mileage...really. Weight-wise, considering the extra weight of the DOHC setup, an aluminum block would be required. Now the 03/04 Fe block with SC AND DOHC is incredibly heavy....Ford had to go this way because they could not build a REALLY dependable Al block. Now we understand why they went the Incredible HP Route with the GT500...they have to compensate for the EXTRA weight!!! Not a problem if you like to go in a straight line, but weight, as you will read in the GT500 forum is a big concern. GT500 is still an awesome accomplishment. quadcammer...we alluded to the "history" of Modular development earlier...you said 12 years, I said over 20....If you read about the 351 Cleveland (a 70's motor as in my 1970 Cyclone GT) in the corner-carvers.com forum you will hear how that motor ALSO had oiling problems on the track. Hence, Ford should have learned from that experience and applied it moving forward. And that problem has nothing to do with the DOHC setup, it's basic roadrace engine tech. Here's my recommended solution to Ford/SVT....if and when you start developing the next Al DOHC N/A block put the damn thing in a Mustang/Cobra and run it around a racetrack - under G's - NON-STOP for a few WEEKS. Signup a bunch of Cobra/Mustang enthusiasts to do the driving....we'll be jumping over each other to be in on this test....won't cost you a dime in professional drivers. Now that's the kind of engine test Cobra OT/Roadracers would really benefit from. A 600-hour BENCH test is useless for a roadrace engine. You need G's!!! [/QUOTE]
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