L31 into an '86 Regal Limited V8
- Thread starter ATL Regal
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ATL Regal said:
On this connector you are correct 7-8 are not used because those pins are for input shaft sensor and the 4L60E doesnt have such a sensor for this model year.
if your not going to use A/C you can remove pins 1,2,14,25,and 30 all for ac anything else can stay.
Thats another thing...
How do I handle the A/C? The engine still has the a/c compressor from the truck, but its kinda high, about as high as where the air goes into intake. I think the hood is gonna be obstructed from closing.
Should I use the a/c compressor from the 307 (it was replaced and retrofitted to run 134a, prolly has about 10k miles)?
Or should I change a/c brackets (I have no idea what bracket would fit this application)?
How do I handle the A/C? The engine still has the a/c compressor from the truck, but its kinda high, about as high as where the air goes into intake. I think the hood is gonna be obstructed from closing.
Should I use the a/c compressor from the 307 (it was replaced and retrofitted to run 134a, prolly has about 10k miles)?
Or should I change a/c brackets (I have no idea what bracket would fit this application)?
I will be doing a L31 swap into a 63 Nova soon, so I thought I would subscribe. Basically, I got the engine and transmission for free and I thought it would be a reliable engine with plenty of power for my Nova. Anyway a couple of thoughts about this swap:
1) the fuel pressure needs to be about 60psi. I will be using a Ford truck external fuel pump as this is the easiest way to go. If you keep the tank at least 1/4 full, there shouldn't be an issue with starving the pump when cornering. Hopefully, the pump will not be too noisy. The pump I have was made by Carter I think (about $100 as I recall).
2) I haven't looked closely at the wiring to the PCM but I understand there were two different "black box" PCMs for these vehicles and that may be the discrepancy noted in the previous posts. I think the 96-97 was different than the 98 up. Note, that the Painless harness is based on the 97 computer 16229684. The last two years of the Express van (2001-2002 I think) used an entirely different computer, the 0411 computer which is also used with the LS1 engine. I intend to look at the Painless and Howell harnesses and just keep the same stuff on the stock harness. That's my thought at the moment. I have a complete set of manuals with wiring diagrams for the Suburban but someone borrowed them and I need to get them back.
3) I will be installing a Vintage Air system but the AC compressor will go in the truck location. I did buy a block to change the hose connections to the rear of the compressor.
4) The engines are designed for low end torque and have a very small cam. I think an LT4 cam work work well and may run on the stock computer tune. Since I am on a pretty tight budget, I intend to use the stock cam but I will use some 1.6 roller tip rockers that I hope will help a little. I think the engine will be a little over 300hp with full length headers and a better tune.
I'll follow along.
Mike
1) the fuel pressure needs to be about 60psi. I will be using a Ford truck external fuel pump as this is the easiest way to go. If you keep the tank at least 1/4 full, there shouldn't be an issue with starving the pump when cornering. Hopefully, the pump will not be too noisy. The pump I have was made by Carter I think (about $100 as I recall).
2) I haven't looked closely at the wiring to the PCM but I understand there were two different "black box" PCMs for these vehicles and that may be the discrepancy noted in the previous posts. I think the 96-97 was different than the 98 up. Note, that the Painless harness is based on the 97 computer 16229684. The last two years of the Express van (2001-2002 I think) used an entirely different computer, the 0411 computer which is also used with the LS1 engine. I intend to look at the Painless and Howell harnesses and just keep the same stuff on the stock harness. That's my thought at the moment. I have a complete set of manuals with wiring diagrams for the Suburban but someone borrowed them and I need to get them back.
3) I will be installing a Vintage Air system but the AC compressor will go in the truck location. I did buy a block to change the hose connections to the rear of the compressor.
4) The engines are designed for low end torque and have a very small cam. I think an LT4 cam work work well and may run on the stock computer tune. Since I am on a pretty tight budget, I intend to use the stock cam but I will use some 1.6 roller tip rockers that I hope will help a little. I think the engine will be a little over 300hp with full length headers and a better tune.
I'll follow along.
Mike
ATL Regal said:
You can buy a block to reroute the hoses from the top of the compressor to the rear of the compressor. This will ive you more hood clearance. I'll look through my paperwork to see where I bought the block.
Mike
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