6 Port Bridgeport - NoPistons -Mazda Rx7 & Rx8 Rotary Forum

6 Port Bridgeport

Reply

 
 
 
Old 12-30-2004, 09:47 AM
  #1  
Senior Member
Thread Starter
 
Join Date: Oct 2003
Location: Fort Lewis Washington
Posts: 705
Default

Well guys here is the long awaited 6 Port Bridgeport Dyno sheet

Series 4 6 port engine

Holley 600

RB 6 port intake

Home made long primary header

Full Brige Port

Half tank of regular pump gas

9.5:1 rotors



We have reason to believe that the tires were slipping around on the rollers, they were brand new MT I prifile street tires.
ArmyOfOne is offline  
Reply With Quote
Old 09-06-2005, 09:28 AM
  #2  
Senior Member
Thread Starter
 
Join Date: Oct 2003
Location: Fort Lewis Washington
Posts: 705
Default

New dyno my 6 port bridge port made 225hp and 124 ft/lbs torque I will post up the sheet sometime later today.
ArmyOfOne is offline  
Reply With Quote
Old 09-06-2005, 10:54 AM
  #3  
Super Moderator
 
Join Date: Jul 2001
Location: NJ
Posts: 17,839
Default

[quote name='ArmyOfOne' date='Sep 6 2005, 10:28 AM']New dyno my 6 port bridge port made 225hp and 124 ft/lbs torque I will post up the sheet sometime later today.

[snapback]755501[/snapback]

[/quote]



what did you change ? that is a good improvement over the last dyno
vosko is offline  
Reply With Quote
Old 09-06-2005, 02:42 PM
  #4  
to infinity & beyond, me
 
Join Date: Aug 2001
Location: santurce
Posts: 5,124
Default

where did teh 50 horses coem from? when are you going back to the track?
treceb is offline  
Reply With Quote
Old 09-06-2005, 09:13 PM
  #5  
Senior Member
Thread Starter
 
Join Date: Oct 2003
Location: Fort Lewis Washington
Posts: 705
Default

Open header, open plenum w/ 1" spacer, full direct fire and some tweaking of the timing.



Amazing what some better breathing can do!!
ArmyOfOne is offline  
Reply With Quote
Old 09-06-2005, 10:34 PM
  #6  
Super Moderator
 
Join Date: Jul 2001
Location: NJ
Posts: 17,839
Default

[quote name='ArmyOfOne' date='Sep 6 2005, 10:13 PM']Open header, open plenum w/ 1" spacer, full direct fire and some tweaking of the timing.



Amazing what some better breathing can do!!

[snapback]755729[/snapback]

[/quote]



what ?



what ?





yeah that is probably you know unless you had ear plugs at the dyno
vosko is offline  
Reply With Quote
Old 09-07-2005, 09:33 AM
  #7  
Senior Member
Thread Starter
 
Join Date: Oct 2003
Location: Fort Lewis Washington
Posts: 705
Default

Well here is the sheet.

Something I forgot to mention was that during the last engine rebuild I found that the center plate had some scorch marks on it. So of course I had to port a new one. I noticed that the auxiliary ports had a lot of soot, this led me to believe that they were not breathing too well. So what I did to counter this problem was that I did not port the primary runners as large. The port size and timing are the same but the runner is a little narrower. I checked the auxiliary ports after I got home from the dyno and they were spotless so I guess that my idea of putting in a restriction on the primary side made the engine breathe better through the auxiliaries. I am happy with my first experiment success.

Next will be to run the same port type and timing on a "Euro" 6 port engine with the nice curved auxiliary ports. More to follow on this in a couple of months.



This will be my last dyno in the USA. I would like to thank everyone on the forum who has given me a hand. Special thanks to Judge Ito for teaching me everything I know.
ArmyOfOne is offline  
Reply With Quote
Old 09-09-2005, 12:38 AM
  #8  
Super Moderator
 
Join Date: Jul 2001
Location: NJ
Posts: 17,839
Default

dyno chart looks good except v8 tq spike lol
vosko is offline  
Reply With Quote
Reply
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
TweakGames
Rotary Engine Building, Porting & Swaps
25
10-14-2007 12:10 AM
Judge Ito
1st Generation Specific
26
09-14-2005 09:06 PM
Judge Ito
2nd Generation Specific
43
05-05-2003 11:03 PM
Judge Ito
Rotary Engine Building, Porting & Swaps
24
02-16-2003 01:26 AM
vosko
2nd Generation Specific
10
01-31-2003 11:11 AM

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

Thread Tools
Search this Thread