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| 84 fieor-- 94 N* swap (Page 16/24) |
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jb1
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MAR 08, 05:27 PM
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| quote | Originally posted by mcfrandon:
I picked up a 94 seville instrument cluster the other day. hoping I can wire it to display codes. maybe its far fetched maybe not. I need to find a wiring diagram first, kinda excited |
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It is no problem to do I wired mine up to do the same, I'm sure many other have done same thing to retrieve codes..------------------
87GTseries 1 3800sc (7.597 @88.53 1.579 60ft)
(series II swap in progress)
85GT Northstar/ 4t80e
86GT 3800 n/a---sold
Northstar Rebuild
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Will
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MAR 10, 08:36 PM
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| quote | Originally posted by mcfrandon:
what are you using? the shelby computer you mentioned?
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Correct. I ran the OBDI computer with a special chip for several years. The Shelby just runs better, and is tunable so that it can grow with the engine as I add mods.
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mcfrandon
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MAR 10, 09:28 PM
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is the shelby obd2? do you have to change the manifold to the newer one?
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IXSLR8
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MAR 10, 09:35 PM
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LS1/Shelby is OBD2. It requires 1995 to 1999 throttle body assembly with the newer style IAC stuff.
1994 has a unique intake manifold.
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mcfrandon
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MAR 12, 02:18 AM
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bad and good news guys... bad news is that i found out yesterday when i was installing my new hood that the Left front of the car had been in an accident and the frame was bent. Good news is i picked up an 87GT fastback today. So i will be transferring the power plant
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mcfrandon
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APR 13, 10:09 PM
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ok i picked up a 1998 seville intake with sensors and ECU for the OBD2 conversion. now will i actually need a ls1 computer or can i write the same software or edit the parameters on this brain box? getting ready to pull the engine out of the 84 and put it in the 87. thinking about doing cams and springs while its out if im going to run the custom tune
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mcfrandon
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MAY 02, 01:26 AM
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update ordered an LS1 computer tuned for high octane and setup for the northstar conversion. very excited. Taking time to rebuild the 2 motor mounts i made seeing that the one i used for the front completely tore allowing the engine to punch a huge dent into the trunk wall of the old car LOL. also had to rebuild some of the rear motor mount because it was in the way of the exhaust which i hadn't really thought about. Also having quite the fun time trying to find a muffler that will fit that area and have the right size piping to flow well. The local exhaust shop is recommending an old style camaro muffler in either a flowmaster or magnaflow. The magnaflow looks to be super long and probably wont fit but i don't really want to go with the flowmaster since its baffled. Guess i will keep looking around. Im really not looking for anything loud or that "oldschool V8 sound"
also built a solid dogbone that connects the left cylinder head to the subframe to help with the engine movement.
Overall i think im pretty lucky to be swapping this a second time since i learned so much the first time. Seems like the 87 is going to be a cleaner swap since it already has a good space for a larger intake tube, the coolant heater core routing is one hose instead of 2, and getting the AC hooked up will be 10x easier and out of the way. Besides all that, everything on this car works already! I did buy a getrag shift cable from rodney and i will say it sure is quality as well as the shifter rebuild kit which was much needed!
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IXSLR8
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MAY 03, 04:35 PM
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You will like the LS1 computer and the flexibility it gives you with HP Tuners, etc....
You might want to consider using 4 engine mounts: two forward, two back. I have 4 engine mounts on both the 88 GT manual 5 speed, 85GT automatic and the 88 Coupe N* swaps. No movement or vibration using poly. I have dodge 318 rubber on the 85GT and its fine also. I do have a doggone strut on the manual 5 speed swap but I came to realize that it isn't necessary.
If your cutting the trunk out, then you can use a truck muffler from an older GM 350 pickup. Its very quiet until you open it up. For the full size trunk (not cutting it out) on the 5 speed N*, I used an 80 series flow master. However, everyone loves the sound, but its too loud for my liking. But, loud is fun.
Your 87 has a little more room between the strut tower and the head.
Looking forward to hearing more...pics...pics...pics!
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mcfrandon
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MAY 07, 01:41 AM
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The strut towers are further apart on the 87? Thats good news if so! Ill get around to posting some picks soon, i just got a new phone and haven't had my laptop that runs windows to get the program running. As far as mounts go yours sure do look a heck of a lot better than mine. I pretty well got them set up now. I used an older jeep cherokee engine mount that should actually hold up and they make poly aftermarket ones if there is any issues there.
Also looks like i took a lot more out of the passenger side of the subframe than most people, but i was paranoid about it sitting flush/parallel with the trunk rail when looking at it from the back.
Great news the ECU showed up today so im very excited for that. I did buy a muffler part number 12158 magnaflow. should be able to fit in the stock location with a 14" body. id like to keep all of my trunk. I think the flowmaster would definitely be too loud for me and i really didnt want anything with baffles
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mcfrandon
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MAY 31, 02:38 AM
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lots of updates to post and took some pictures i can post tomorrow. Im currently stuck on something unexpected with the intake manifold swap... i was installing the new gasket for the obd2 intake and realized there will be nothing covering the old slits in each cylinder head intake port for the EGR system on the 94. looks like i will have to plug it and seal it somehow but im also concerned with this type of newer gasket and the fact that it will only be using 2 bolts per side instead of 5. just another bump in the road i guess
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