TPI into an 84 SE (Page 1/4)
rubyredfiero MAR 13, 07:39 PM
I have not posted for a while, but have been lurking occasionally. The last 10 years I've been busy working on hot rods. So I decided to work on a new hot rod project, my 84 SE, Iron Puke, 4 speed and A/C.

The project:
84 SE, 4 speed with original 27,000 miles (45,000kms)
91 TPI 305 ci
1227730 ecm

I have been working on the setup since October 2018 in my heated garage. Let me tell you something, I really appreciate what some of the forum experts have commented about the 84 not being the friendliest to do a swap due to the wiring. WOW, are they ever right. I have high respect for members like and not limited to:
Darth Fiero, Fieroflyer, Radar, 1 MohrFiero, olejoedad, RWDPLZ and others that contribute to this great form.
The 84 is definitely a unique year, totally different C500 pinout and location, ECM pinout and their respective wire colors. 85 - 88 were closer to each other with some differences. But that did not stop me from forging ahead. KEEP THIS IN MIND. I want to keep the original C500 and relocate it and the original C203. Just re-pin as needed.

7730 wiring harness:
The first encounter was the A/C. The 84 has a clutch relay, but the 90-92 f-body does not. I will add some schematics later.

Thanks.
FFIEROFRED MAR 13, 08:30 PM
I did a 305 TPI in my 84. The V6 fiero fuel lines will point right up were the F body TPI fuel rails go. I used A set of headers form EBAY. Stainless steel "TURBO HEADERS" on mine. they point to the drivers side, up high. I made a cross over pipe that goes just like the factory v6 cross over pipe. with a elecrtic dump were the fiero had the converter. This connects to the rest of the stock v6 GT exhaust. I had to remove the little shelf in the back trunk to get them to clear. Over the years I have made a lot of changes. I have a 4T60-E with a TCI trans controler. I made a power distrabution point for 12 volts behind the drivers seat to get the fuesable links away from the starter. I have all digital gages so they all work and you can see them. I have 12 inch vet brakes IT STOPS! I have lots of picturs, but can't post them here. I AM on facebook. I am Fredrick W. Hall on there. I have a facebook page fro V8 fieros. "V8fieros". You can see how it runs if you look me up on youtube. Last month I made some runs at a 1.8 mile drag strip. no times, there clocks were not back from calibration. On all the runs I took of in 2nd gear. The trans controler lets me do that. starting with the 3rd run the dump was open. It doesn't have the 305, the TPI, or a flat tappet cam any more. It does have a 357, dart heads, victor intake, comp cams roller cam, roller rockers, K&B pistons, eagle rods, 3.42 gears, 2800 rpm stall. You will need to reinforce the cradle were the front trans mount bolts down. You will need more rad. you will need more brakes. Put a restrition in the heated hose, 1/8 inch will work. This makes the water go to the rad. I CAN post pictures of all this on facebook. The vid on youtube is "Chevy V8 Fiero-7"

[This message has been edited by FFIEROFRED (edited 03-13-2019).]

rubyredfiero MAR 14, 06:47 AM
FFIEROFRED - You wrote, "I did a 305 TPI in my 84. The V6 fiero fuel lines....". I think your car was NOT an 84, because V6 were not available till 85. The fuel inlet and return lines will face the rear glass on mine and I don't expect any issues. My exhaust is done and as soon as I figure out how I used PIP, I'll post pics and other material to support my swap. I don't subscribe to facebook. My car will not be on the track of any sort, just cruising. That's all I can do at 72 years old. Thank you for the input.
pmbrunelle MAR 14, 07:27 AM
I think the idea is to get the V6 fuel lines from a later Fiero and install them in your Fiero.
rubyredfiero MAR 14, 09:38 AM
Then I misunderstood. My apology to you FFIEROFRED. I have L4, V6 and TPI fuel line, but I prolly go with AN- fittings and braided lines.
rubyredfiero MAR 14, 09:51 AM
So here's a pic of my engine.

Sorry about the lousy 1st pic. I will try a different one.



That's better.

[This message has been edited by rubyredfiero (edited 03-14-2019).]

fierosound MAR 14, 01:38 PM

quote
Originally posted by rubyredfiero:

So here's a pic of my engine.



What's the internal arrangement of that muffler?
This is the typical setup for most crossflow types...


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[This message has been edited by fierosound (edited 03-14-2019).]

rubyredfiero MAR 14, 03:06 PM
The muffler I'm using is MF 11378, 2 in & 2 out 2-1/4" all ends. It's bi-directional, but the tubes don't cross over. They connect in opposite direction. That is top to top, bottom to bottom.. That's why I have the exhaust welded (spot welded for now) as shown. Had to contact MagnaFlow to ensure the inner works. Yours looks like they cross over. What make and number is it?
fierosound MAR 14, 05:52 PM

quote
Originally posted by rubyredfiero:

The muffler I'm using is MF 11378, 2 in & 2 out 2-1/4" all ends. It's bi-directional, but the tubes don't cross over. They connect in opposite direction. That is top to top, bottom to bottom.. That's why I have the exhaust welded (spot welded for now) as shown. Had to contact MagnaFlow to ensure the inner works. Yours looks like they cross over. What make and number is it?



That's just a generic picture of a crossover that some cars have.
Yours is obviously like this Gibson design then.

[This message has been edited by fierosound (edited 03-14-2019).]

pmbrunelle MAR 14, 06:50 PM
Have you test-fitted this exhaust in the car yet?

I may want to recommend this type of exhaust routing to a friend who is doing a Fiero engine swap similar to this one, in that the engine has two manifolds pointing downwards.

[This message has been edited by pmbrunelle (edited 03-14-2019).]