Some important 20B swap questions
Thread Starter
Joined: Jul 2004
Posts: 2,953
Likes: 1
From: West Palm Beach - FL
Some important 20B swap questions
Hey, some of you might know me from the 3rd Gen or Drag Racing sections. I have a Half-Bridge 13B with a GT42r that puts down 562whp @ 24psi. I recently finished my Ford Mustang Cobra 8.8" rearend swap this past Xmas Break. I am really undecided on if I want to do a Vortech'd LS2/LS7 swap or a large streetported 20B with a GT42r turbo kit. I know how much these swaps cost. I have already sunk in more than 45K in my FD. 
But I am going to be doing one of these swaps soon.
My question with the 20B swap is: What parts could I reuse from my current setup on a 20B? Could I use the alternator, Unorthodox Racing E-Shaft Pulley, or anything else? I know I could save my 2 1680cc injectors and just buy a third for the secondary injector setup. I will be getting an entirely new turbo kit so I can keep anything from that.
Also, does somebody make a bracket to place the alternator where the stock A/C compressor goes? I will be running an electric water pump so I would only have the alternator. My car already has NO A/C, PS, CC, or ABS. So alot of the things that I would have to do are already done for both the 20B or V8 swap. One last question. Who makes one of the best 20B subframes out there that dont cause bump steer?
Thank You,
Phil
But I am going to be doing one of these swaps soon.My question with the 20B swap is: What parts could I reuse from my current setup on a 20B? Could I use the alternator, Unorthodox Racing E-Shaft Pulley, or anything else? I know I could save my 2 1680cc injectors and just buy a third for the secondary injector setup. I will be getting an entirely new turbo kit so I can keep anything from that.
Also, does somebody make a bracket to place the alternator where the stock A/C compressor goes? I will be running an electric water pump so I would only have the alternator. My car already has NO A/C, PS, CC, or ABS. So alot of the things that I would have to do are already done for both the 20B or V8 swap. One last question. Who makes one of the best 20B subframes out there that dont cause bump steer?
Thank You,
Phil
We make a alternator relocation that places it where the factory a/c mounts. It can be purchased separate, or it does come with our 20b conversion kit by default. To my knowledge our 20b conversion is the only kit on the market that will not cause bump steer or need bump steer correction. We accomplish this by keeping the full factory subframe and steering rack mounting untouched. Our engine mounts include delrin, so no need for engine torque braces, and the mounts are stronger than the factory FD or factory 20b. The alternator must be relocated, as well with other mods to clear the hood, which is included in the kit. Here is a link that will answer any questions you may have. https://www.rx7club.com/defined-autoworks-176/defined-autoworks-20b-conversion-kit-644417/
Parts that can be re-used off the top of my head-
-FD alternator
-FD pulleys, aftermarket included
-FD front cover
-FD p.s bracket
-FD lightweight Flywheel
-FD clutch (if strong enough)
-FD starter
-FD waterpump
-Radiator if its big enough
-Intercooler if its big enough
-Oil coolers, if using two setrab style
Parts that can be re-used off the top of my head-
-FD alternator
-FD pulleys, aftermarket included
-FD front cover
-FD p.s bracket
-FD lightweight Flywheel
-FD clutch (if strong enough)
-FD starter
-FD waterpump
-Radiator if its big enough
-Intercooler if its big enough
-Oil coolers, if using two setrab style
the mazda zoom zoom store
Joined: Feb 2001
Posts: 749
Likes: 1
From: Columbus, Oh
You can keep the alternator, Unorthodox Racing E-Shaft Pulley, and turbo. check our pics on the site or give us a call. http://www.rx7store.net/category_s/429.htm
Thread Starter
Joined: Jul 2004
Posts: 2,953
Likes: 1
From: West Palm Beach - FL
You can keep the alternator, Unorthodox Racing E-Shaft Pulley, and turbo. check our pics on the site or give us a call. http://www.rx7store.net/category_s/429.htm
Certainly call the Rx7 Store, but you do know that Defined Autowerks is the innovative leader in 20b conversions? They also have done some of the finest motors I have seen or heard. If you decide to use someone, like Rx7 Store, to build your motor, fine. They are a choice to be sure. But you should have them use Defined Autowerks conversion kit at a minimum. You would be negligent not to seriously check them out, since they really are one of the serious leaders in the 20b conversion business. I assume you followed their link provided above?
I may have made a bad assumption that from you saying you would call Rx7 Store that you were for some reason ignoring Defined Autowerks and please excuse me if that is wrong. But they certainly have the best way of mounting a 20b in an FD. Period. I now wish I had used their kit and might even take the time to switch out my custom subframe for a stock subframe and their mounting kit. (How hard would that be Logan?) While do not think I have a bump steer issue, I do have things on the top of the engine that hit the hood and have even dented it in about 3 places. I definitely made a mistake not using their kit. I would also have been quite happy, I am sure, having them build my motor. I am not at all unhappy with what I have, but it is my opinion that they have the best solution to the conversion for certain.
You need to look at them seriously.
Gordon
I may have made a bad assumption that from you saying you would call Rx7 Store that you were for some reason ignoring Defined Autowerks and please excuse me if that is wrong. But they certainly have the best way of mounting a 20b in an FD. Period. I now wish I had used their kit and might even take the time to switch out my custom subframe for a stock subframe and their mounting kit. (How hard would that be Logan?) While do not think I have a bump steer issue, I do have things on the top of the engine that hit the hood and have even dented it in about 3 places. I definitely made a mistake not using their kit. I would also have been quite happy, I am sure, having them build my motor. I am not at all unhappy with what I have, but it is my opinion that they have the best solution to the conversion for certain.
You need to look at them seriously.
Gordon
Gordon,
We did all the previous work on Phils car. That is probably why he is talking with us on doing the 20B. Phil can use anyones install kit for the 20B, does not matter to us. We use RX7 Specialties subframe which we have been happy with and havent had any issues. Its keeps the motor in a good position to where its not hitting the hood and the tranny lines up in the tunnel.
Most important job is the port and rebuild on the motor. Ours makes 570 RWHP at 14 lbs of boost on a medium sized turbo. On a GT42 it would make a lot more than that.
Jason
God Damn!!! Why are all the good shops not in Cali
Well anywayz...anyone know a good place in Cali particularly near San Fran who can rebuild and port a 20B for me...someone who has a reputable reputation on 20B's? I just got a job here and I've finally made up my mind to do a 20B swap instead of a 2JZ. Any help would be appreciated!
Well anywayz...anyone know a good place in Cali particularly near San Fran who can rebuild and port a 20B for me...someone who has a reputable reputation on 20B's? I just got a job here and I've finally made up my mind to do a 20B swap instead of a 2JZ. Any help would be appreciated!
Trending Topics
Thread Starter
Joined: Jul 2004
Posts: 2,953
Likes: 1
From: West Palm Beach - FL
Thank you for making me aware of the kit. I checked out the link and it looks very top notch.
Thread Starter
Joined: Jul 2004
Posts: 2,953
Likes: 1
From: West Palm Beach - FL
Gordon,
We did all the previous work on Phils car. That is probably why he is talking with us on doing the 20B. Phil can use anyones install kit for the 20B, does not matter to us. We use RX7 Specialties subframe which we have been happy with and havent had any issues. Its keeps the motor in a good position to where its not hitting the hood and the tranny lines up in the tunnel.
Most important job is the port and rebuild on the motor. Ours makes 570 RWHP at 14 lbs of boost on a medium sized turbo. On a GT42 it would make a lot more than that.
Jason
We did all the previous work on Phils car. That is probably why he is talking with us on doing the 20B. Phil can use anyones install kit for the 20B, does not matter to us. We use RX7 Specialties subframe which we have been happy with and havent had any issues. Its keeps the motor in a good position to where its not hitting the hood and the tranny lines up in the tunnel.
Most important job is the port and rebuild on the motor. Ours makes 570 RWHP at 14 lbs of boost on a medium sized turbo. On a GT42 it would make a lot more than that.
Jason
God Damn!!! Why are all the good shops not in Cali
Well anywayz...anyone know a good place in Cali particularly near San Fran who can rebuild and port a 20B for me...someone who has a reputable reputation on 20B's? I just got a job here and I've finally made up my mind to do a 20B swap instead of a 2JZ. Any help would be appreciated!
Well anywayz...anyone know a good place in Cali particularly near San Fran who can rebuild and port a 20B for me...someone who has a reputable reputation on 20B's? I just got a job here and I've finally made up my mind to do a 20B swap instead of a 2JZ. Any help would be appreciated!
rx7club username 61620B
Certainly call the Rx7 Store, but you do know that Defined Autowerks is the innovative leader in 20b conversions? They also have done some of the finest motors I have seen or heard. If you decide to use someone, like Rx7 Store, to build your motor, fine. They are a choice to be sure. But you should have them use Defined Autowerks conversion kit at a minimum. You would be negligent not to seriously check them out, since they really are one of the serious leaders in the 20b conversion business. I assume you followed their link provided above?
I may have made a bad assumption that from you saying you would call Rx7 Store that you were for some reason ignoring Defined Autowerks and please excuse me if that is wrong. But they certainly have the best way of mounting a 20b in an FD. Period. I now wish I had used their kit and might even take the time to switch out my custom subframe for a stock subframe and their mounting kit. (How hard would that be Logan?) While do not think I have a bump steer issue, I do have things on the top of the engine that hit the hood and have even dented it in about 3 places. I definitely made a mistake not using their kit. I would also have been quite happy, I am sure, having them build my motor. I am not at all unhappy with what I have, but it is my opinion that they have the best solution to the conversion for certain.
You need to look at them seriously.
Gordon
I may have made a bad assumption that from you saying you would call Rx7 Store that you were for some reason ignoring Defined Autowerks and please excuse me if that is wrong. But they certainly have the best way of mounting a 20b in an FD. Period. I now wish I had used their kit and might even take the time to switch out my custom subframe for a stock subframe and their mounting kit. (How hard would that be Logan?) While do not think I have a bump steer issue, I do have things on the top of the engine that hit the hood and have even dented it in about 3 places. I definitely made a mistake not using their kit. I would also have been quite happy, I am sure, having them build my motor. I am not at all unhappy with what I have, but it is my opinion that they have the best solution to the conversion for certain.
You need to look at them seriously.
Gordon
It would be pretty easy to swap subframes back to stock, and use our mounts. However your lower intake would need to be sent in, along with the factory oil pan for clearancing. As for the alternator, we are in the process of making a version that keeps a/c and p.s in the stock location, and moves the alternator over some to clear the hood. I will send you a PM with details of this, and see if it would be what you are wanting.
Certainly call the Rx7 Store, but you do know that Defined Autowerks is the innovative leader in 20b conversions? They also have done some of the finest motors I have seen or heard. If you decide to use someone, like Rx7 Store, to build your motor, fine. They are a choice to be sure. But you should have them use Defined Autowerks conversion kit at a minimum. You would be negligent not to seriously check them out, since they really are one of the serious leaders in the 20b conversion business. I assume you followed their link provided above?
I may have made a bad assumption that from you saying you would call Rx7 Store that you were for some reason ignoring Defined Autowerks and please excuse me if that is wrong. But they certainly have the best way of mounting a 20b in an FD. Period. I now wish I had used their kit and might even take the time to switch out my custom subframe for a stock subframe and their mounting kit. (How hard would that be Logan?) While do not think I have a bump steer issue, I do have things on the top of the engine that hit the hood and have even dented it in about 3 places. I definitely made a mistake not using their kit. I would also have been quite happy, I am sure, having them build my motor. I am not at all unhappy with what I have, but it is my opinion that they have the best solution to the conversion for certain.
You need to look at them seriously.
Gordon
I may have made a bad assumption that from you saying you would call Rx7 Store that you were for some reason ignoring Defined Autowerks and please excuse me if that is wrong. But they certainly have the best way of mounting a 20b in an FD. Period. I now wish I had used their kit and might even take the time to switch out my custom subframe for a stock subframe and their mounting kit. (How hard would that be Logan?) While do not think I have a bump steer issue, I do have things on the top of the engine that hit the hood and have even dented it in about 3 places. I definitely made a mistake not using their kit. I would also have been quite happy, I am sure, having them build my motor. I am not at all unhappy with what I have, but it is my opinion that they have the best solution to the conversion for certain.
You need to look at them seriously.
Gordon
Thread
Thread Starter
Forum
Replies
Last Post
