Rotary Engine Building, Porting & Swaps All you could ever want to know about rebuilding and porting your rotary engine! Discussions also on Water, Alcohol, Etc. Injection
View Poll Results: Best motor and port for little lag 350whp
S4 TII
0
0%
S5 NA
0
0%
S5 TII
0
0%
13B-REW
100.00%
Voters: 3. You may not vote on this poll

6 Port NA planning Stage

Thread Tools
 
Search this Thread
 
Old Aug 23, 2007 | 07:04 PM
  #1  
(NA)turalyRWD's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2007
Posts: 9
Default

Alrighty well i'll start with an introduction. My name is Garrett and i live in Wisconsin. I am 18 years old and my 1989 mazda RX7 NA is my cage of choice and first rotary. My end goals with this car are...

1. Very responsive 350whp

2. Centering the weight

3. Reducing unsprung weight



Overall i'm after balanced performance!



In regards to the poll pick what you feel best and post with your choice of motor and port type for my needs.



My thaughts on the motor no matter what you guys suggest. Open to critisism

-ITB with plenum

-Shortest IC piping Possible

-Very balanced/light Rotating assembly including cluth and flywheel(possible 5" pending opinions on streetability)



Any thaugts are greatly appreciated!



Sincerley,

Garrett



PS. Any mods want to delete the thread in the FAQ section idk how i managed that
Old Aug 26, 2007 | 12:19 PM
  #2  
j9fd3s's Avatar
Senior Member
 
Joined: May 2002
Posts: 22,465
From: California
Default

for 350whp its pretty simple.



use any turbo engine, build it to stock specs, with maybe a mild port. balance the rotating assembly, use a light flywheel. use the FD oil pressure regulator.



you need a larger turbo than stock, gt35 is good, 60-1 is good, el likes his t04e 57 with a big hotside



you need an aftermarket ecu, you can get a stocker to 350hp, but its not resonsive or safe.



intercooler's up to you, if you're really dying for short piping, do a v mount (they end up real simple) or we've tossed around the idea of using a water to air top mount...



it needs a 3" exhaust with straigh thru mufflers, a larger downpipe would be helpful but not needed.



stock ignition is fine, msd would be better.



run about 12-15psi of boost, and it should easily do 350+....
Old Aug 26, 2007 | 07:57 PM
  #3  
(NA)turalyRWD's Avatar
Thread Starter
Junior Member
 
Joined: Feb 2007
Posts: 9
Default

Alright that was pretty much what i had been looking at also. Is there any way i can dial the boost down to 250Hp for street/autocross but leave it at 350 for drift/open track? I just got done with my first ever autocross!!! Fast time was around a 41 in modded S2K With a few stock evos and an STI in the 42-43 range. I ended up with a 55 on my best run. All and all i learned that shitty tires yield dumptruck like understeer.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Str8ryd
RX-7 & RX-8 Parts For Sale & Wanted
5
Apr 1, 2008 08:58 PM
10thanv
RX-7 & RX-8 For Sale
2
Oct 29, 2007 12:34 AM
TweakGames
Rotary Engine Building, Porting & Swaps
25
Oct 14, 2007 12:10 AM
(NA)turalyRWD
Rotary Engine Building, Porting & Swaps
0
Aug 21, 2007 07:38 PM
sleeper7
Rotary Engine Building, Porting & Swaps
34
May 19, 2004 12:13 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 02:18 AM.