advice/pointers
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I am honestly thinking I am gonna have a TON of problems trying to do this... but I can't sell my car for anymoney unless I complete the project so I guess I'm stuck trying.
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There're only one or two upgrades you can do to your turbocharger that won't require a custom exhaust manifold. One of them has been called the "RX-7 upgrade", and I haven't seen that for years. Matt Faul(Fallguy) used to have that. The other one is the "T-bird upgrade", and I believe that involves taking a compressor wheel from a Thunderbird turbocharger and modifying your stock turbo to use that. Neither of these upgrades are very major, but they do still require tuning.
Speaking of tuning, you can do it the rough way with an adjustable fuel pressure regulator and an FMU, or do it the right way and get a standalone electronic management system. Both ways require tuning either on a dyno or on the road with a wideband oxygen sensor. Because of the VAF, your car can't use an Apexi S-AFC or a Split Second ARC-2.
Where did you find that turbo kit for sale?
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Was it www.injecttech.com ?
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the turbo kit I was kinda basing off of was on racing mazda. and it requires a new manifold and new exhaust system. but yeah I don't know how to get around the VAF unless I need to somehow reprogram the ECU and everything else to make it work with a bigger turbo.
barry let me know if that made any sense, if it didnt' i can try to explain better
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This is the eBay chip I was talking about. Based on the description, I'm guessing it's a direct ripoff of the InjectTech chip.
I don't know of anyone that can reprogram the 89-92 Probe GT ECU for a custom application. I recommend going with Megasquirt. There is a company that has someone who has made it work with both fuel and spark control using the stock distributor. www.prdonline.com
There's always the old FPR+FMU option, but again, I don't think that's a good idea. Yeah, a million people use FMUs, but a standalone is so much more precise.
Oh, by the way, I have never seen the Racing Mazda kit on any 1st-gen Probe.
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very interesting stuff you bring up here barry, I will admit I don't know much about the electronics of an engine or how to tune them in(never done it) but do you think with this chip I would be able to upgrade my turbo/boost. I read on the stuff about that chip that the factory fuel system could handle the change. any other area's that I need to look into? I know I need a whole new manifold setup and exhaust. but how about in the engine and electronics?
again I must say thanks guys for puting up with me here, it helps a great deal!
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With one of those ECU chips, you are stuck with whatever settings it comes with. www.injecttech.com says nothing about reburning it after getting dyno results. It's suspected that the guy selling them stole someone else's work, so who knows how much he can and can't do with the ECU program. He has no dyno results, and I wouldn't trust that chip to have the right settings for fuel and spark with more airflow from a bigger turbo.
You'll also want to upgrade your fuel injectors. Since you are going with Megasquirt(hint, hint), you can do that upgrade easily. Now that we're on that subject, it would be helpful to know what kind of horsepower figure you want for your max boost. It's helpful for shopping for injectors.
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yor hp will never exceep my hp!?!?!?!?!? that is a direct quote from LICKMYNUTZ.COM
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lol, that was kinda random. as for hp I think anything over 200 would be nice but if I could get to 300whp I would stop there I think. any more and I would wind up doing something dumb.
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If I ever get to those numbers I was pretty sure I would need nitrous
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