Okay guys. Here it is…the FAQ for the 4g37 to 4g63t swap. It may be a little sketchy but I don’t have that much time. Also I release myself from any liability for anything that may be wrong.
I had an entire running parts car that I used for a donor. I wished I just left the parts car as is but the 1.8 had a fresh paint job and a lot of body work put into it. Well you live and you learn. The 1.8 was a 91 and the TSi was a 90. There were a lot of differences in the electrical layout. In order to keep the wiring clean we swapped all the wiring.
First of all you need to pull the engine out of both vehicles. Make sure you keep the engine mounts out of the turbo. They are thicker and will stabilize the heavier motor better. I just bought some new ones since the donor was so old. Make sure you label all the vacuum lines or you will get lost. To make things simple just get the vacuum hose removal vfaq from www.taboospeedshop.com
Have your donor engine rebuilt or better yet get a built one. I got crapped on my rebuild and the piston rings blew. I am going through court matters to fix that situation. Here comes the bulk of the swap. The wiring is completely different from the 91 to 90. That may not be the case for newer models. I cannot verify so check into that. The ECU has to be swapped out. You will need an ECU for the same model and year to keep things simple. The wiring from the turbo engine to the ECU was quite simple except that it started branching out to the dash and rear of the car BEFORE the ECU. At first we thought that would be no problem but for some odd reason the wiring connectors were all different. Hence the reason we ended up changing entirely every wire in the car. Swapping out the wiring wasn’t too bad as long as you take the time and have enough patience to do so. It all goes back to carefully remembering where what goes. As with any standard engine swap or rebuild, it is highly recommended that most of the external engine parts like the core, alternator, water and oil pumps are all replaced with new ones. Also any relays that any wiring goes to that is not on the original car must be swapped. We spent 2 whole days trying to crank the car to find out that the relay that controls the ignition and fuel was missing.
Next is the intercooler. The 1.8 has a huge plastic canister under the fender but the intercooler is a direct bolt-on. All the bolt holes and location are in the same place. The only thing that was not was the oil cooler which was simply welded on the correct spot. So to finish up everything is simply plug and play. All bolts are there and all. Even the tranny dropped in like it should. As long as you have decent motor (unlike me) and all the wiring you should be good to go. Also I can’t verify the wiring issue with 91-94 models. This is for a 91 to 90 swap.
I had an entire running parts car that I used for a donor. I wished I just left the parts car as is but the 1.8 had a fresh paint job and a lot of body work put into it. Well you live and you learn. The 1.8 was a 91 and the TSi was a 90. There were a lot of differences in the electrical layout. In order to keep the wiring clean we swapped all the wiring.
First of all you need to pull the engine out of both vehicles. Make sure you keep the engine mounts out of the turbo. They are thicker and will stabilize the heavier motor better. I just bought some new ones since the donor was so old. Make sure you label all the vacuum lines or you will get lost. To make things simple just get the vacuum hose removal vfaq from www.taboospeedshop.com
Have your donor engine rebuilt or better yet get a built one. I got crapped on my rebuild and the piston rings blew. I am going through court matters to fix that situation. Here comes the bulk of the swap. The wiring is completely different from the 91 to 90. That may not be the case for newer models. I cannot verify so check into that. The ECU has to be swapped out. You will need an ECU for the same model and year to keep things simple. The wiring from the turbo engine to the ECU was quite simple except that it started branching out to the dash and rear of the car BEFORE the ECU. At first we thought that would be no problem but for some odd reason the wiring connectors were all different. Hence the reason we ended up changing entirely every wire in the car. Swapping out the wiring wasn’t too bad as long as you take the time and have enough patience to do so. It all goes back to carefully remembering where what goes. As with any standard engine swap or rebuild, it is highly recommended that most of the external engine parts like the core, alternator, water and oil pumps are all replaced with new ones. Also any relays that any wiring goes to that is not on the original car must be swapped. We spent 2 whole days trying to crank the car to find out that the relay that controls the ignition and fuel was missing.
Next is the intercooler. The 1.8 has a huge plastic canister under the fender but the intercooler is a direct bolt-on. All the bolt holes and location are in the same place. The only thing that was not was the oil cooler which was simply welded on the correct spot. So to finish up everything is simply plug and play. All bolts are there and all. Even the tranny dropped in like it should. As long as you have decent motor (unlike me) and all the wiring you should be good to go. Also I can’t verify the wiring issue with 91-94 models. This is for a 91 to 90 swap.
ur goin down!!!!
