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I started to think about my cars and my friends cars, both finished and under construction and every one has fuel injection or will have. I'm talking about a wide range of engines. 59 corvette with ls7, 55 chevy , 49 mercury, zo6 corvette, twin turbo dune buggy, both my cobras, my sons 76 cj7 jeep and you could go on and on. All have check engine light and plug in port to check codes. Also with the exception of the inline 6 in the cj7 jeep of my son, none of the others use oil . The cj7 has a stroked crank and I suspect the pistons are the problem, uses a quart of oil about 2000 miles. The pistons were custom made 20 years ago or so, 8 sets were ordered at the time to get price break, and these were the last set used in this engine. Not happy and not except-able in this day and age.
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If and when an EFI system is perfected, both installation, setup, tuning, a true plug and play system, I may be a buyer. But I haven't seen anything that folks haven't complained about. And of course, there are some that are just downright fugly and I wouldn't buy it based on aesthetics. |
EFI in my Cobra?
It'll be installed right after the airbag. ;) |
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I think oil consumption is obvious different from car to car, build an aftermarket engine with any power adder, turbo, supercharge, or nitrious and use a carb and then use efi and then come talk to me, efi is far far superior, Kyroyer engines builds some of the finest efi engines around at a cost but they work like a dream, its a fact carbs work, efi works better, not these self learning systems I mean real tunable efi...
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You said bad EFI setups are better than carbs. I said most folks would argue that point. I said that there aren't many, if any, on ClubCobra with EFI that works properly 100% of the time. And I said if they work properly, look good aesthetically, and aren't priced stratospherically, then I'll buy it and install it. How many here on ClubCobra with a Kroyer or "Kyroyer" engines? Please let me here from you. Do you have EFI? How's it working for you? |
And away we go!
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I'd also like to see your "aesthetic" setup. |
Airbag
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Russell |
Just got more great news:
It appears that after rebuilding the engine and needing new pistons due to the cracks on two of them, I also need to replace some of the valves and all of the guides as a few of the valves and all of the guides are showing more than normal wear. The builder remarked that this engine looked like it had been run without oil. Not on my watch, but who knows what happened before it was delivered to me. There goes another $1200 just for head work. At least I am going to have the most expensive Roush 427 SRTW ever rebuilt. Can't take away my bragging rights! Now, can anyone tell me how to grind off the ROUSH name from my air cleaner lid? I've already replaced the valve covers with generic Ford covers. |
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I wish I knew. When the heads were removed, there was no cross hatch visible in any of the cylinders. Should have been visible with 13,000 miles. There were even a couple of tiny gouges in two of the cylinder walls. A couple of lifters were showing abnormal wear. The heads are being rebuilt due to wear. Either this engine was just a POS from the get go or maybe it was accidentally run without oil before I received the car. Who knows?
All I know is the rebuild is costing more than the original cost of the engine. I guess I just expected more. Should have gone with another engine builder. Why Roush feels they have to build an engine with looser tolerances is beyond me. If I had read their exclusion paragraph, I would have passed and bought another engine. Oh we'll, it's only time and money. But it's my f--kin time and money. |
Gee
Can of worms What happens if u are looking at buying a cobra that has a Roush motor. Sounds like a number of u haven't known the issues until u have stripped it down. I know this is the case with all engines but the chance of getting a dog sounds greater in a 427R Roush than other motors. I would expect a street motor to be good for 20k or more surely. Bruce |
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Plus you live in a great town. Take a drive to the beach and watch all your worries melt away. |
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I don't have any idea what happened to your engine, but what you describe should not have happened in 13,000 miles and what other have been describing with their Roush engines with that or less mileage is not good... David |
RodKnock,
My engine(s) has run a Haltech EFI since 1996 (thats right 1996). When I switched from the little 427 to the 540 a few years ago, I did have it retuned for WOT on the dyno (540 rwhp). I also did about 2 weeks of driveability tuning after that and it has run great again for about 4 years. As far as going thru the gears, I do it all the time and the car runs mid 10s on pump gas and street tires (does yours?). You have no business arguing that EFI doesn't work well. All the OEMS can produce 600HP and have great driveability with EFI. However there are a lot of folks living in the past that do not understand the systems well enough to tune them and won't take the time to think the systems through who will never figure them out. These folks are the complainers - if you don't understand, complain - forget learning something... Anyway, EFI works great if you understand it, in fact mine is really simple to make corrections with a laptop, you just have to be able to use the laptop ;) |
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I've never run my Cobra in the 1/4 mile. It's likely I won't either. But, let's race the old fashioned way. Like cavemen. Forget the cars for a moment and let's race on foot, say 40 yards, a 100 meters, a 5K, a 10K or even a triathlon. I don't care, though my swimming technique needs some work. :D :LOL: |
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