1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

My 4port 13B is done.

Thread Tools
 
Search this Thread
 
Old 03-07-05, 09:15 AM
  #1  
Boosted Fb

Thread Starter
iTrader: (1)
 
13BTOY's Avatar
 
Join Date: Nov 2003
Location: Lost!
Posts: 1,471
Likes: 0
Received 0 Likes on 0 Posts
My 4port 13B is done.

Okay rotorheads, I finally closed up my 4port 13B and the build is done. I'm just waiting for my flywheel gear stop so I can torque the flywheel down and in she goes. By the way I used and street ported(mild) 12A irons, 79 mid plate(tall intake port) and 85 GSL-SE rotors and housings. This will be fueled by a Dellorto 48. The lower RB manifold was also port matched to the intakes on the irons. Are there any special break in tricks for an overhauled rotary? HP guesstimate anyone?

Thanks, Ed
Old 03-07-05, 09:20 AM
  #2  
RX for fun

iTrader: (13)
 
Siraniko's Avatar
 
Join Date: Aug 2001
Location: Socal
Posts: 15,926
Likes: 0
Received 22 Likes on 19 Posts
Prime the motor before starting the engine - crank it without the spark plug wires conneted until you start reading oil pressure. 500 mile cruise, then 600-1,000 miles, gradually punch the engine.
Old 03-07-05, 09:21 AM
  #3  
Tom
Whack 'em and stack 'em

 
Tom's Avatar
 
Join Date: Mar 2003
Location: Clarksburg/Bridgeport WV- North Central Appalachia
Posts: 1,373
Likes: 0
Received 0 Likes on 0 Posts
Sounds very cool! I've been on and off the fence about doing a 4port 13B swap with my GSL. I'm anxious to hear your results.

(Sorry- no HP guesstimate from me!)
Old 03-07-05, 09:22 AM
  #4  
Rotary Freak

 
Alex-7's Avatar
 
Join Date: Dec 2003
Location: Waukesha Wisconsin
Posts: 2,117
Likes: 0
Received 2 Likes on 2 Posts
Ok I'll guess, Hmmmm.... I'd say 160-180rwhp, somehere in there.



As far as break in goes I say take it easy for the first 500mi, then anything goes. there are a million different schools of thought on this, but that's how I did mine (I was very impatiant)




--Alex
Old 03-07-05, 11:17 AM
  #5  
Moderator

iTrader: (2)
 
rxtasy3's Avatar
 
Join Date: Jun 2002
Location: Spartanburg, SC
Posts: 9,318
Likes: 0
Received 256 Likes on 237 Posts
on my build, i kept the revs under 4k for the first 1000 miles. but didn't really start getting on it hard til after 1500 miles. by the time i made it to the strip, i'd done put 8500 on it. i'd guess the hp at the fw would be in the neighborhood of around 220. all i know it mine does 9.38 1/8th mile which i think calculates to about 14.5 1/4 mile. i have over 18,000 miles on it now and i want to go back to the strip and try for a better time.
Old 03-07-05, 12:09 PM
  #6  
Blood, Sweat and Rotors

iTrader: (1)
 
DriveFast7's Avatar
 
Join Date: Aug 2001
Location: California
Posts: 3,742
Received 1 Like on 1 Post
Get a 3/4" heater hose. Slide that over the boss that the oil filter threads onto. Pour 1 quart of oil in there, that'll fill the bearings, rotor, and e-shaft with oil and PRELUBE it.

Make sure oil lines and cooler are full of oil.

Then crank for oil pressure.
Old 03-07-05, 01:15 PM
  #7  
Boosted Fb

Thread Starter
iTrader: (1)
 
13BTOY's Avatar
 
Join Date: Nov 2003
Location: Lost!
Posts: 1,471
Likes: 0
Received 0 Likes on 0 Posts
Thanks for the info guys!

Later, Ed
Old 03-07-05, 03:11 PM
  #8  
Nigga stole my bike!

 
clean85owner's Avatar
 
Join Date: Oct 2002
Location: Des Allemands, Louisiana
Posts: 1,154
Likes: 0
Received 0 Likes on 0 Posts
Unless it is streetported, I doubt you'd be getting 160 to the ground. My motor is pretty much the same as your but with a mild streetport. It was quoted at 215fhp; which is about 175whp. Hopefully, you will be in the neighborhood of 150whp. Have fun with the car, man!
Old 03-07-05, 03:15 PM
  #9  
Rotary Freak

 
Alex-7's Avatar
 
Join Date: Dec 2003
Location: Waukesha Wisconsin
Posts: 2,117
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by 13BTOY
I used and street ported(mild) 12A irons, 79 mid plate(tall intake port) and 85 GSL-SE rotors and housings.

I bet it'll put down 160
Old 03-07-05, 03:31 PM
  #10  
Lapping = Fapping

iTrader: (13)
 
Jeff20B's Avatar
 
Join Date: Aug 2001
Location: Near Seattle
Posts: 15,725
Received 70 Likes on 64 Posts
I need to get back to work on my 13B 4 port. I've got some Pineapple ports to copy, teehee.
Old 03-07-05, 08:44 PM
  #11  
Boosted Fb

Thread Starter
iTrader: (1)
 
13BTOY's Avatar
 
Join Date: Nov 2003
Location: Lost!
Posts: 1,471
Likes: 0
Received 0 Likes on 0 Posts
Yeah its streetported. I used the RB templates. I did not go crazy on the exhaust port though. I could have gone a lot bigger but decided to keep it mild. Hopefully the motor will be in by the end of the month so I can break it in and post some numbers for you guys.


Thanks, Ed
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
spokanerxdude
Megasquirt Forum
3
10-06-15 12:28 PM
Robrods64
New Member RX-7 Technical
6
10-02-15 07:56 PM
93FD510
New Member RX-7 Technical
2
10-01-15 02:00 PM
Boans
V-8 Powered RX-7's
3
09-25-15 04:34 PM
Devon Murray
Introduce yourself
2
09-25-15 09:41 AM



Quick Reply: My 4port 13B is done.



All times are GMT -5. The time now is 10:44 PM.