advice/pointers
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well I am looking into getting parts to upgrade my factory turbo. I am opting out of buys a turbo kit for my car, since I already have 25-50% of the parts that it would come with. but being as I've never done this before are there any things you guys can think of that might be overlooked by a rookie? my main goal is to just get a bigger turbo on it by spring thinking of a t3/4o3 with an external wastegate. any idea's would be great even if they are basic.
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i can help with finding a bigger turbo i have to find it but garrett has sheet that you fill out of what you want in hp gains and so on and you send it in and they send you a list of turboes that could be good for your plans, i'll see if i can find it again and let you know
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well the deal is I found a turbo kit for my car, 90 probe gt and I guess I don't really want the fastest car intown, just want more power(though I'll prolly get there and still want more) but I'm going to try to stick to the same things they offer with this kit, since I think it works with mostly stock setting, so I shouldn't have to worry as much about blowing my engine.
T3/TO4E turbocharger
.46 A/R compressor; .63 A/R turbine
TiaL 35mm external wastegate
21" x 12" x 3" Aluminum Intercooler
Mild steel, equal length tubular manifold, .25" thick tubing
3" flexible downpipe
2.5" intercooler and turbo piping
GReddy Type R blow-off valve
Autometer Ultra-Lite or Phantom series boost gaugethat is the main components they list and I already have a BOV, 2.5" intercooler piping and the intercooler so I'm thinking it is gonna be cheaper to get all the parts that I don't already have, instead of buying the kit.
hopefully that made sense, but if someone thinks that is a bad setup for a Mazda 2.2l engine let me know.
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good stuff to know though, if i find out a t3/04e turbo won't work I might have to go that route.
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hmmm, I have a BOV hooked up right now and the car runs fine... but that does make sense, I could try taking it off and seeing what happens. but is there away around the VAF?
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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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