Joined
·
13,492 Posts
PLEASE NOTE THAT THIS THREAD IS IN DIRE NEED OF AN UPDATE! IF ANYONE HAS ANYMORE HIGH QUALITY IMAGES THAT THEY WOULD LIKE TO SHARE WITH ME PLEASE SEND THEM TO MY EMAIL.
I WILL UPDATE THE THREAD SOON ENOUGH WHEN I HAVE TIME!
Getting the Physical Engine in there is no problem once you have the required parts.Please bare in mind that I have never carried out a 20V swap into either of these frames but I have owned and still only own FWD Audi 80's with 4 cylinder engines so the knowledge is still there(I Hope
![]()
).Please feel free to correct me and add to the thread @ any time.
So here goes...ROUND 2
![]()
Well if you own an Audi B frame and it has the aluminum base mount then your in luck.The following cars made by VAG carried the aluminum base mount but were also equipped with a 4 cylinder engine.
ABK - Euro Audi 80 2.0E
ABT - Euro Audi 80 2.0E
ADR - Audi 80 Carbrio with NA 20V
In the picture below you can clearly see the aluminum base mount found in the 7A/NG cars except the engine is a 4 cylinder.
![]()
Below illustrates just the chassis + aluminum base mount:
![]()
Now once you have obtained the engine mount bracket from the ABK/ABT,you can mount the AEB into the 7A/NG Frame.The ABK mount bracket carries the same 4 holes as the AEB
![]()
![]()
The same concept applies as above except you need to make a custom adapter plate to convert the left side engine mount from a 3 hole to 4 hole.Once the plate is made,weld (3) studs into the plate to accept the ABK engine mount bracket.When making the plate,start with the Tapped common hole which the ABK & ABA share and work your way through until you have covered all 6 mounting points.In the picture below the far left AEB mounting point is incorrect.There is a tapped hole next to it,thats the AEB far left mounting position.I didnt pick this up before...
![]()
The bad news is that the FWD Audi 80 has an engine that mounts to its subframe and not chassis.The good news is you have options in terms of hybrids.You can either
1. Build a 3A/AEB Hybrid
2. Build a custom 4 hole to 3 stud adapter plate so that you can use you stock 3A engine mount brackets.
This brings me to my next point.
Pretty much how you would fit an 8V or 16V Head on an old style block such as 9A/3A/PG/PM.You would have to Block these 3 oil drain holes with 5/8 set screws pictured here:
![]()
For this your going to need the following pieces:
There are always strings attached but the good news is that for every problem there is a solution.Pictured below is a 3A/9A Block and as you can see there are only 3 holes for the left side engine mount bracket.
![]()
Now comparing this to the AEB pictures above,You will have to use an adapter plate that bolts into the AEB block and has 3 studs sticking out of it to allow the use of a 3A engine mount bracket.
All the holes in the AEB are the same as 3A/9A/ABA/ABK/ABT/PG/etc so not to worry.
You can either transplant the entire AEB harness which can get rather nasty or you can do a clean install using 034EFi Stage Ic Like I am using.If you plan on staying with a 3A/AEB combination then use 16V Plug wires.Scirocco20V displayed these pictures today of his 20V running a distributor in the block
![]()
You obtain all the mounting hardware,radiator etc etc from a FWD Audi 80 in order to make your side mounted radiator become front mounted.If you have a Front Mounted radiator allready then this does not apply to you.
Well thats it,I would like to thank John for making the photos available on the net and hopefully if everything goes according to plan,this should be your end result.
Courtesy of RPI Equipped:
![]()
Modified by Wizard-of-OD at 2:44 PM 12-29-2005
Modified by Wizard-of-OD at 5:09 PM 5-18-2008
I WILL UPDATE THE THREAD SOON ENOUGH WHEN I HAVE TIME!
Getting the Physical Engine in there is no problem once you have the required parts.Please bare in mind that I have never carried out a 20V swap into either of these frames but I have owned and still only own FWD Audi 80's with 4 cylinder engines so the knowledge is still there(I Hope
So here goes...ROUND 2
| Quote, originally posted by John Doe » |
| How do I transplant an AEB engine into my B2/B3/B4 Frame |
Well if you own an Audi B frame and it has the aluminum base mount then your in luck.The following cars made by VAG carried the aluminum base mount but were also equipped with a 4 cylinder engine.
ABK - Euro Audi 80 2.0E
ABT - Euro Audi 80 2.0E
ADR - Audi 80 Carbrio with NA 20V
In the picture below you can clearly see the aluminum base mount found in the 7A/NG cars except the engine is a 4 cylinder.
Below illustrates just the chassis + aluminum base mount:
Now once you have obtained the engine mount bracket from the ABK/ABT,you can mount the AEB into the 7A/NG Frame.The ABK mount bracket carries the same 4 holes as the AEB
| Quote, originally posted by John Doe » |
| What about a Hybrid ABA/AEB engine |
The same concept applies as above except you need to make a custom adapter plate to convert the left side engine mount from a 3 hole to 4 hole.Once the plate is made,weld (3) studs into the plate to accept the ABK engine mount bracket.When making the plate,start with the Tapped common hole which the ABK & ABA share and work your way through until you have covered all 6 mounting points.In the picture below the far left AEB mounting point is incorrect.There is a tapped hole next to it,thats the AEB far left mounting position.I didnt pick this up before...
| Quote, originally posted by John Doe » |
| I own a FWD Audi 80 Equipped with a 3A,What do I do? |
The bad news is that the FWD Audi 80 has an engine that mounts to its subframe and not chassis.The good news is you have options in terms of hybrids.You can either
1. Build a 3A/AEB Hybrid
2. Build a custom 4 hole to 3 stud adapter plate so that you can use you stock 3A engine mount brackets.
This brings me to my next point.
| Quote, originally posted by John Doe » |
| How do I fit a 20V on a 3A block? |
Pretty much how you would fit an 8V or 16V Head on an old style block such as 9A/3A/PG/PM.You would have to Block these 3 oil drain holes with 5/8 set screws pictured here:
| Quote, originally posted by John Doe » |
| What about the Distributor on a 20V Head? |
For this your going to need the following pieces:
| Quote, originally posted by What Gears to Use » |
1. CAM GEAR: 16V Cam Gear Stock 20V/16V Cam Gear has 52 Teeth 2. CRANK GEAR: 16v crank gear STOCK but an ABA crank pullye shaved 5.5mm with a new centering ring pressed in. Scirocco20v mods them for $10 if you supply it.or you can do it yourself. Stock 8V Crank Gear has 22 teeth Stock 16V/20V Crank Gear has 26 teeth 3. INTERMEDIATE SHAFT GEAR: Combination of a 20V Cam Gear and an 8V Intermediate shaft.dont mod the gear...Mod the keyway in the IM shaft to fit the gear. The 8v used a press in half mood key way and the 20v cam gear uses a molded in 1/4 moon. It wont fit unless a path is cut in the IM shaft to fit the key on the gear to. Now the 16v may be the same outside specs...But the spacing on the mounting hub is different. The 16v one sets the gear to far in and requires a spacer... If Building PG 20V Combination - Use PG IM SHAFT If Building ABA 20V Combination - Use ABA IM SHAFT If Building AEG/AEB Comboination - No IM SHAFT 4. TIMINT BELT: Prelude Timing Belt: 1.contitech part # CT 879 (155 teeth) 2.Gates timing Belt from Napa (Thanks Scirocco20v) - $93 @ Napa Its a 155T belt that comes on 92-98 2.2l VTEC motors. 3. OEM Honda - $63 @ Dealer 92-98 Honda Prelude 2.2l VTEC Honda part # : 14400-P13-014 |
| Quote, originally posted by John Doe » |
| Suppose I just want to do a Direct Transplant no strings attached |
There are always strings attached but the good news is that for every problem there is a solution.Pictured below is a 3A/9A Block and as you can see there are only 3 holes for the left side engine mount bracket.
Now comparing this to the AEB pictures above,You will have to use an adapter plate that bolts into the AEB block and has 3 studs sticking out of it to allow the use of a 3A engine mount bracket.
| Quote, originally posted by John Doe » |
| What about the Right Side engine mount? |
All the holes in the AEB are the same as 3A/9A/ABA/ABK/ABT/PG/etc so not to worry.
| Quote, originally posted by John Doe » |
| How do I control the engine? |
You can either transplant the entire AEB harness which can get rather nasty or you can do a clean install using 034EFi Stage Ic Like I am using.If you plan on staying with a 3A/AEB combination then use 16V Plug wires.Scirocco20V displayed these pictures today of his 20V running a distributor in the block
| Quote, originally posted by John Doe » |
| Ok so now that the engine is in there,what do I do about my radiator etc? |
You obtain all the mounting hardware,radiator etc etc from a FWD Audi 80 in order to make your side mounted radiator become front mounted.If you have a Front Mounted radiator allready then this does not apply to you.
Well thats it,I would like to thank John for making the photos available on the net and hopefully if everything goes according to plan,this should be your end result.
Courtesy of RPI Equipped:
Modified by Wizard-of-OD at 2:44 PM 12-29-2005
Modified by Wizard-of-OD at 5:09 PM 5-18-2008
