85 GN drivetrain swap into 84 Regal Limited

[GranRegal87]

Hey guys.
I "Searched" all of the forums and got a ton of useful information but still have some unanswered questions..
I have a 1984 Regal Limited with a 3.8 V6 and a 3 speed auto tranny (no overdrive).
I obtained a complete 1985 Buick Grand national, Motor, turbo, tranny, wiring harness and computer. I plan on swapping out my 1984's drivetrain (when the motor starts knocking) for the 1985 GN's.
All of the turbo swaps I've read about is using stock fuel lines, and adding Hi-pressure fuel pump and GN tank, and welding a new cross member for the tranny.
I guess my questions are..

1. I plan on running a fuel cell in the trunk with a sump, an in-line high pressure fuel pump, filter, and AN lines to the motor.

Will this screw up my emmissions? I am in NY so, it has to run the standing idle test or maybe a Dyno test at 50mph.

2. Since my car came with the 3.8 liter V6, is the correct crossmember already in the car? If not, are there aftermarket cross-members available? I plan on running single 3" exhaust dumping on the right rear tire before the axle.

3. Will I run into Wiring harness/ECM problems using the stock 1985 engine harness and computer and reusing my 1984 body harness/other harnesses? Or should I start looking into an aftermarket custom GN engine harness?

This will be a daily driver but I want it to be fun, so I'm tearing down the motor and freshening it up, putting a chip in it, free flow exhaust, intake and maybe some head work.
Anyone have any recommendations for best bang for the buck on a Hot air setup? I'd like to run low 13's all day, maybe dipping into the 12's..I think that's being pretty realistic compared to some of the hot-air recipes I've seen..

Any other info would be greatly appreciated..
Thanx in advance!!!
L8r

 

[NOKA72]

where in ny are you located...i did this swap already..maybe i can be of some help..let me know..vinny

 

[GranRegal87]

Hey! I'm in Wantagh, on the south shore of long island.
I am picking up the drivetrain this weekend from Pa.
Once I get it, I'm going to start tearing it down for a freshening up, new bearing, rings, gaskets, seals, etc..Just to make sure I'm not wasting my time with this motor.

I need to start gathering parts for this swap.
Any info would be greatly appreciated..
Thanx
L8r

 

[NOKA72]

email me..on what you need to know...and let me know what you have so far..vinny

 

[GranRegal87]

Alrighty.
Its been almost a year since I got my 1985 GN motor/tranny, and my 1984 Regal Limited has gone through a number of changes.
The suspension has been rebuilt, so has the brakes, and finally got a set of tires big enough to take up some of the gearing.
I'm running a 3.73 posi rear, with 275-60r15's on stock 87 GN rims, and 225-60r15's on same rims..
The stance is pretty bad ass.. I'm doing the body work and hopefully painting it this weekend. Charcoal grey metallic..

Now I have most of the parts needed for the swap and also upgrades already.
Here is a list of parts that I have ready for the swap, and upgrade.
A complete 1985 Hot-air GN motor, with Harness and computer.
A complete 200R4 overdrive tranny with converter from 1985 GN Charcoal canister, relays, fan shroud, stock exhaust with y-pipe and cat. converter.

Also on order a Full rebuild kit from Summit racing, Not changing pistons, just new rings, bearings, seals and gaskets.
A new set of ARP head bolts (because stock ones arent reusable?)
a 1987 GN ECM unmodified
a ceramic coated pair of 1985 exhaust manifolds, already welded, with cross over pipe.
1987 Ignition coil..( I will order the casper conversion harness)
a camaro alum. radiator, electric fans with the '87 relay wiring.
A shift kit and a higher stall converter, probably 3000rpm+ because of the 3.73 gearing..
and a B&M rachet shifter instead of the column (3 speed) shifter.

With all of that being said.
So here come the questions..

I want to run a fuel cell. Unless someone has a GN fuel tank for sale that is somewhat local.
Is there anyone running a fuel cell in their GN?
What size steel braided AN lines do I have to run along the frame?
Any fuel pump recommendations for use with AN lines?
Adjustable fuel pressure regulator, what kind?

I will be running wiring for the fuel pump hooked up to a switch instead of keyed ignition, any problem with this?

The tranny crossmember will be switched if needed. I was under the impression that the TH350 and 200R4 crossmember are the same, the TH400 crossmember was different.
If it needs to be switched, then I'll go after market for dual exhaust use..$200+/-

I have a laptop ready for the turbolink or direct scan programs.
Just need to get the programs, and adapter..

Am I missing anything??

And NYS said that it will have to run on the Dyno for emmissions.
Will it pass if I have a fuel cell in the trunk or anything else swapped?

I also plan on removing the AC because it doesnt work, and will give me more room to work.
Any issues with this?
Do I need an AC deleted pulley?

Also, when I rebuild the engine, should I opt for a high pressure oil pump or is stock replacement fine?

I hope to acheive low 13's with this car, and with the gearing and the 1987 ECM conversion and chip options I think it might be pretty realistic.

I'd like to keep this hot air, but an open to an intercooler install as well..

Any info would be greatly appreciated..
I've thoroughly used the seach feature..

 

[only"T"intown]

I did the trany swap only opposite from yours a few years ago. I do dnow that the 4 speed auto crossmember is different than the 3 speed auto trany crossmember. Best bet is to find a junked olds or buick with the 2004r and use that member. Also I'm pretty sure most trany shops can get an adapter plate that will match up the trans bolts of the 2004r to the 3 speed crossmember. Hope this helps a little.
Steve

 

[GranRegal87]

Ahhh. Thanks. If I cant find a used 200r4 crossmember I could always get the aftermarket ones made for dual exhaust. But it'll cost me a few bucks.

Great at least I know what Im up against.
Thanks again