But now I have a complete 3.4 V-6 from oil pan to intake and most of the brackets. The 3.4 actually costs less to rebuild than the 2.5 and I can still use my turbo (I think). I might have to reroute the belt and move the alternator down to the side of the block to clear the hood. I have already figured out a idler pulley replacement for the power steering (Fiero's don't have power steering). The new to me engine didn't come with the A/C compressor, but hopefully my original one will bolt up. Biggest problem will be the computer, I believe that I could use the ECM from the four cylinder. I'm basing this on several things, first, I know that the ignition module will run the engine without the ECM connected (I've started these engines with the plug disconnected and was trying to figure out why the engine ran so sluggish). Second, if I connect all of the injectors to fire at the same time the OE ECM should be able to control the fuel. I also know that the TPS and the IAC are the same as the OE parts so the computer should have no problem with them. I was planning on running a prom emulator anyway, so I can reprogram the ECM to overcome any problems I may have. Granted I will loose the "sequential injection" that GM spent so much money developing, but so what? I'll have a 3.4 liter V6 that will spin to 6000 and live. Now I hope I actually can have the engine, the junkyard might want some of the stuff back and then I might not have enough parts left to build it.
Thursday, April 1, 2010
Does anyone read this????
So....as I have said in previous posts, I work in a garage that does a lot of engine overhauls, and occasionally a junkyard install for customers with less money. After the tech in the next bay swapped a junkyard engine for the 3rd time, we now have an assortment of parts with which I could build a complete engine. I was planning on rebuilding the 2.5 liter four cyilinder that came in the Fiero. (My original plan was to build a small displacement V-8, but that project became way too expensive.) So I settled on rebuilding the 2.5 as a cost savings (because I didn't have to buy an engine to rebuild) and strapping on a turbo.
But now I have a complete 3.4 V-6 from oil pan to intake and most of the brackets. The 3.4 actually costs less to rebuild than the 2.5 and I can still use my turbo (I think). I might have to reroute the belt and move the alternator down to the side of the block to clear the hood. I have already figured out a idler pulley replacement for the power steering (Fiero's don't have power steering). The new to me engine didn't come with the A/C compressor, but hopefully my original one will bolt up. Biggest problem will be the computer, I believe that I could use the ECM from the four cylinder. I'm basing this on several things, first, I know that the ignition module will run the engine without the ECM connected (I've started these engines with the plug disconnected and was trying to figure out why the engine ran so sluggish). Second, if I connect all of the injectors to fire at the same time the OE ECM should be able to control the fuel. I also know that the TPS and the IAC are the same as the OE parts so the computer should have no problem with them. I was planning on running a prom emulator anyway, so I can reprogram the ECM to overcome any problems I may have. Granted I will loose the "sequential injection" that GM spent so much money developing, but so what? I'll have a 3.4 liter V6 that will spin to 6000 and live. Now I hope I actually can have the engine, the junkyard might want some of the stuff back and then I might not have enough parts left to build it.
But now I have a complete 3.4 V-6 from oil pan to intake and most of the brackets. The 3.4 actually costs less to rebuild than the 2.5 and I can still use my turbo (I think). I might have to reroute the belt and move the alternator down to the side of the block to clear the hood. I have already figured out a idler pulley replacement for the power steering (Fiero's don't have power steering). The new to me engine didn't come with the A/C compressor, but hopefully my original one will bolt up. Biggest problem will be the computer, I believe that I could use the ECM from the four cylinder. I'm basing this on several things, first, I know that the ignition module will run the engine without the ECM connected (I've started these engines with the plug disconnected and was trying to figure out why the engine ran so sluggish). Second, if I connect all of the injectors to fire at the same time the OE ECM should be able to control the fuel. I also know that the TPS and the IAC are the same as the OE parts so the computer should have no problem with them. I was planning on running a prom emulator anyway, so I can reprogram the ECM to overcome any problems I may have. Granted I will loose the "sequential injection" that GM spent so much money developing, but so what? I'll have a 3.4 liter V6 that will spin to 6000 and live. Now I hope I actually can have the engine, the junkyard might want some of the stuff back and then I might not have enough parts left to build it.
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