What I need for 3-rotor conversion(250HP)
#1
Senior Member
Thread Starter
Join Date: Jan 2002
Location: The Netherlands/Dordrecht
Posts: 532
Likes: 0
Received 0 Likes
on
0 Posts
What I need for 3-rotor conversion(250HP)
http://www.hurleyrotary.com/mazda_12...ry_engines.htm
This 3-rotor kit costs around $7500.
If I buy this kit for a FB, what else do I need to modify? Driveshaft? And what would the extra mods cost?
I do NOT want a Turbo. A BP 2-rotor would cost around the same, because I live in The Netherlands so I have to order a complete engine in the US.
This 3-rotor kit costs around $7500.
If I buy this kit for a FB, what else do I need to modify? Driveshaft? And what would the extra mods cost?
I do NOT want a Turbo. A BP 2-rotor would cost around the same, because I live in The Netherlands so I have to order a complete engine in the US.
#2
It would actually be pretty easy if you have a machine shop around that will do custom work for you..
All prices are US:
20B /w Custom crossmember
Haltech (Or your choice of EMS)
TII Tranny
TII Flywheel
Custom Driveshaft
20B header
Good radiator
THen just ditch the turbos and put an air filter on the intake..
Not the best but the cheapest probably.. or you could ditch the EFI for a custom webber setup. But that would probably cost more.
You could probably get it done for ~$4K-7K..
-Zach
All prices are US:
20B /w Custom crossmember
Haltech (Or your choice of EMS)
TII Tranny
TII Flywheel
Custom Driveshaft
20B header
Good radiator
THen just ditch the turbos and put an air filter on the intake..
Not the best but the cheapest probably.. or you could ditch the EFI for a custom webber setup. But that would probably cost more.
You could probably get it done for ~$4K-7K..
-Zach
#5
Um, I don't much like SU carbs.. but i don't have alot of experiance with them either..
The question is though, why go with carbs when the engine comes with all the Fuel injection stuff you need accept the ECU??
If you really want to go cheap pick up a distributor from mazdatrix and run a haltech F9..
I think carbs on a 3 rotor would be hard.. Because you would have to hack up the throttle linkage.. to make them open the same..
But if it is a 20B kit it might be ok..
-Zach
The question is though, why go with carbs when the engine comes with all the Fuel injection stuff you need accept the ECU??
If you really want to go cheap pick up a distributor from mazdatrix and run a haltech F9..
I think carbs on a 3 rotor would be hard.. Because you would have to hack up the throttle linkage.. to make them open the same..
But if it is a 20B kit it might be ok..
-Zach
Trending Topics
#10
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
Posts: 3,431
Likes: 0
Received 2 Likes
on
2 Posts
Carb on a 20B is easy... 51mm IDA on a custom manifold. I saw a PP 20B with this setup and it was making some ridiculous horsepower. Though I guess the manifold would be pretty hard to make if it's not a PP.
#12
Gone Race'n
iTrader: (4)
Join Date: Dec 2001
Location: Rockford, IL
Posts: 1,544
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by REVHED
Carb on a 20B is easy... 51mm IDA on a custom manifold. I saw a PP 20B with this setup and it was making some ridiculous horsepower. Though I guess the manifold would be pretty hard to make if it's not a PP.
Carb on a 20B is easy... 51mm IDA on a custom manifold. I saw a PP 20B with this setup and it was making some ridiculous horsepower. Though I guess the manifold would be pretty hard to make if it's not a PP.
#14
Your Opinion is Wrong
Join Date: Feb 2001
Location: Peoples Republic of California
Posts: 591
Likes: 0
Received 0 Likes
on
0 Posts
The stock Comso 20b ECU doesn't work without the stock coils, wiring, and auto tranny, and even they you still have to trick it to run.
Plus the fuel maps will be all wrong without the turbos.
Plus the fuel maps will be all wrong without the turbos.
#15
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
Posts: 3,431
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by moremazda
Was this a three barrel IDA?
Was this a three barrel IDA?
#16
A 51 IDA is way too small for a 3 rotor.. That would be more inline for a PP 13B..
And If you price thing out right a 20B is not that expensive to do.. BTW the 5-7 was for the swap.. Not including car or other things.
Just so you all know, kurgan & i are droping a 20B into his FC right now.
-Zach
And If you price thing out right a 20B is not that expensive to do.. BTW the 5-7 was for the swap.. Not including car or other things.
Just so you all know, kurgan & i are droping a 20B into his FC right now.
-Zach
#19
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
Posts: 3,431
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by zyounker
A 51 IDA is way too small for a 3 rotor.. That would be more inline for a PP 13B..
A 51 IDA is way too small for a 3 rotor.. That would be more inline for a PP 13B..
#21
the torquinator
iTrader: (1)
Wouldn't a 3 rotor make way more than 250 horses? If you only want 250 horses I would put a big streetport on a 13b, or a halfbridge on a 12a and lighten the car up a little. Or maybe a TII motor. Or you could wait to hear from the guy who is supercharging his 12A (Sterling?) and get the specs on how from him.