i've seen many 20B conversions and most of them are either the twins or single turbos. getting bored seeing that after awhile. has anybody done a 20B peripheral port N/A with individual throttle?? I'm really tempt to do this on my car. any info would be great.

steve

 

The moderator of the 20B forum has peri ports and indivi throttle bodys, but its turbo. I thought i remember reading someone in that area of the board having a 20B el NA

 

really??!!?? the more i'm talking about 20B N/A the more i want to do it. pls. post some pictures if anyone has done it or share the infos.

 

If you do a search on this forum you'll find the info your looking for. A guy recently, in the past 2 months posted info on a car he tuned. 20b na fc I believe. He came close to 250ish whp. I don't remember the specifics.

-Destin

 

thanks.. just did a search after i posted. hehe

 

That would be RETed. How found that an NA 20B with his mods was about 5HP short of a stock JC Cosmo, if I remember right. That means the stock twin turbos are only good for 5HP!

I'm doing an NA 20B project because it's a pre-letter engine, #756.

 

um, ok if i remember correctly re-anemya has a 20b which im pretty sure is na capable of breaking 300kmph (abt 186mph) cant remember the exact power output but it would have needed a decent amount to break 300kmph.

if someone can dig up the the option rx7 special (its a dvd/vcd) im sure they'll find the car on there.

also im pretty sure someone was running a n/a 20b with a pp hitting around 350-400hp at the wheels

 

are u talking about the new RE Amemyia FD?? the creamy color one? that car is bad ***.

 

No I believe he's talking about the old gt car on Option rx7 special vol 33?. The blue one. It's definately fast, either PP or BP and N/A. I've heard talk though that the cream colored FD is the older RE blue car redone though.

 

I think you are referencing Evil7's car, which has a custom-built 3-rotor (not a 20B) with Motec throttle bodies and a Y2K turbo. Mine just has a stock block 20B with a T66 turbo.

Evil7's PP 3-rotor:
http://www.evil7.com/entrance.htm

LOL, I think that's more of an indication of how performance tuning with a standalone EMS and a good tuner is a lot better than a nasty stock EMS for an emissions-controlled luxury car. Here is the thread of RETed's recent 20B NA tuning:
https://www.rx7club.com/showthread.p...hreadid=304066

The Mazda Motorsports 20B and 13G factory race engines are PP NA engines that make about 450-475hp at the flywheel. They have been around since the late 1980's, and the 20B parts are still available through Mazda Motorsports.