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Unit 5302 · 03-19-2001, 01:59 AM

You did more than give an opinion, yello95gt. What you basically said was that since your Cobra went fast your computer is good, and since we don't own a Cobra, we have no business saying how good their computers are. That's fine with me if you are happy with your computer system. The fact is the Cobra's computer is inferior to all other computer's availible. They have a 7 second delay before going into open loop!!! In other words, your car is half way down the track before you even get full throttle! Furthermore as is common knowledge the Cobra's computer pulls out timing in between shifts and has a poor fuel/timing curve. All that adds up to serious wasted power potential. Why? To reduce warranty claims on the T-5.

Here's the deal. With an adjustable FPR the 19lb injectors will do fine up to 350hp. In fact, when you are running the injectors at a higher pressure, they will create better fuel spray patterns and atomization. Running 24lb injectors on a stock motor will not help performance. SD itself is more aggressive than any of the MAF systems. SD cars generally run a couple tenths quicker stock for stock versus the MAF cars.

What heads/cam/intake do you plan on? A GT-40 setup like the Cobra has stock will not make enough power to justify swapping to the 24lb setup.

Now as far as if you do switch to 24lb injectors, no the Cobra computer will still not be better. If you are making that much power you'll want a new MAF sensor for sure, in which case, just have the new sensor calibrated for 24 lb injectors. The result will be better then the stock Cobra setup. Much better. You should have no problems picking up a set of 24lb injectors, a Pro-M 75mm MAF, a used computer, and the conversion harness for less than the Cobra conversion. To me it only makes sense to get the less expensive better performance option. Straight up the Pro M and a A9L will kill a stock Cobra setup. I wouldn't be suprised to hear you pick up 3 tenths at all. But hey, it's your money.

What false information has been sent you way about the SD systems? 88workcar is running low 12's with Edelbrock heads, E303, roller rockers, and an intake. He's still running the SD system. A lot of people don't seem as determined to tune them properly, but when they do, you can find that a SD car can handle mild cams, heads, and intakes usually with just some fuel pressure adjustments.

03-19-2001, 01:59 AM	#11
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	You did more than give an opinion, yello95gt. What you basically said was that since your Cobra went fast your computer is good, and since we don't own a Cobra, we have no business saying how good their computers are. That's fine with me if you are happy with your computer system. The fact is the Cobra's computer is inferior to all other computer's availible. They have a 7 second delay before going into open loop!!! In other words, your car is half way down the track before you even get full throttle! Furthermore as is common knowledge the Cobra's computer pulls out timing in between shifts and has a poor fuel/timing curve. All that adds up to serious wasted power potential. Why? To reduce warranty claims on the T-5. Here's the deal. With an adjustable FPR the 19lb injectors will do fine up to 350hp. In fact, when you are running the injectors at a higher pressure, they will create better fuel spray patterns and atomization. Running 24lb injectors on a stock motor will not help performance. SD itself is more aggressive than any of the MAF systems. SD cars generally run a couple tenths quicker stock for stock versus the MAF cars. What heads/cam/intake do you plan on? A GT-40 setup like the Cobra has stock will not make enough power to justify swapping to the 24lb setup. Now as far as if you do switch to 24lb injectors, no the Cobra computer will still not be better. If you are making that much power you'll want a new MAF sensor for sure, in which case, just have the new sensor calibrated for 24 lb injectors. The result will be better then the stock Cobra setup. Much better. You should have no problems picking up a set of 24lb injectors, a Pro-M 75mm MAF, a used computer, and the conversion harness for less than the Cobra conversion. To me it only makes sense to get the less expensive better performance option. Straight up the Pro M and a A9L will kill a stock Cobra setup. I wouldn't be suprised to hear you pick up 3 tenths at all. But hey, it's your money. What false information has been sent you way about the SD systems? 88workcar is running low 12's with Edelbrock heads, E303, roller rockers, and an intake. He's still running the SD system. A lot of people don't seem as determined to tune them properly, but when they do, you can find that a SD car can handle mild cams, heads, and intakes usually with just some fuel pressure adjustments.