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> Alternate ECU's- my thoughts, your opinions?
ottox914
post Nov 17 2004, 08:58 AM
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I'll be running the yellow car in DSP next season, and we (this forum) have got the suspension in line with "how much bar is to much bar". On to the engine. DSP needs a stock long block, but intake and exhaust systems are free. I've got a Kerry Hunter header and supertrapp exhaust on now. So- on to the intake system.

Was planning to use the existing intake system, as it is more budgetary, and more torque oriented. Maybe over the winter research and build new runners and central plenum. But how to control it all?

I've been waiting as patiently as possible for the KitCarlson system, but have had other thoughts of late. With the KC system, you need to set timing values, fuel values, develop a VE table, and so on. And at this point, its all closed loop. Sounds like alot of work.

Plan "B". Go to "aircooled.net" http://www.aircooled.net/new-bin/viewprodu...0007&cartid=and check out the safeguard system, as an ignition upgrade. Hook this up, and the timing is self adjusting for fuel quality, temp of intake air, height above/below sea level, etc. Then add a megasquirt, SDS, Haltech or other fuel only controller. Beg, borrow, steal a wideband O2 and let the timing self adjust, just keep dumping fuel till you get good O2 readings across the RPM range, and tuning is done.

Can it be that simple? Pros and Cons of each plan? Thoughts? Other ideas?

Thanks!
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ottox914
post Nov 18 2004, 10:13 PM
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Thanks for all the opinions. Anyone actually use the "safeguard", or know of anyone who has? To reply to some of the comments, yes, there is a cold air kit on the car, home cobbled, sucks cold air out from right under the lid, with the rain tray removed. Did a G-tech on the car before and after, and averaged 4hp gain. Plans are DSP for a season or 2, learn the PEFI system, and add a turbo and go hunting in SM2. And yes, I know you can't turbo a type IV motor... I think the driver thing is on the way too, as I am not the fastest guy in the cones, but am one of our club instructors, and generally top 5 fastest on street tires, top 25 overall, our events draw 100-150 cars, with several national trophy winners present. Re-inventing the intake/plenum is mostly a winter exercise to keep the car crazies in check when there is more snow than pavement. I have an engineering book on design of intake and exhaust systems, and several of our club members are engineers who have expressed an interest in helping, so that cobble actually has 1/2 a chance of actually working, as well as keeping my "inner geek" happy. While the safeguard is interesting, I may hold out for the KC system. Any more comments are always welcome.
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