2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

Bridge Vs Streetport

Thread Tools
 
Search this Thread
 
Old 11-04-06, 01:50 PM
  #1  
ROTOR7VEN

Thread Starter
 
sik7ven's Avatar
 
Join Date: Jul 2005
Location: orlando, fl
Posts: 380
Likes: 0
Received 0 Likes on 0 Posts
Bridge Vs Streetport on a NA motor

I didnt want to flood anyone else's thread with my own questions so
Im askin here, Does Streetport have potential to reach 300+ hp?

If not, What would be a good Bridegport setup,
I want to make a badass NA and want some advice
if yall are willing to give it to me.

What are the disadvantages of both if any
I kno bridgeport kills the "daily driver" usage...

Last edited by sik7even; 11-04-06 at 02:12 PM.
Old 11-04-06, 02:49 PM
  #2  
My girl

iTrader: (3)
 
Houstonderk's Avatar
 
Join Date: Apr 2004
Location: Andrews AFB, MD
Posts: 2,173
Likes: 0
Received 2 Likes on 2 Posts
Oh god, another one. Hey by the way did you have a red second gen with maroon interior that has rotor7ven sticker on the front windshield? I was asking el nene about it.
Old 11-04-06, 03:02 PM
  #3  
ROTOR7VEN

Thread Starter
 
sik7ven's Avatar
 
Join Date: Jul 2005
Location: orlando, fl
Posts: 380
Likes: 0
Received 0 Likes on 0 Posts
no im pretty sure that was omee... Fc3sfreek, that was his old car, he sold it

Last edited by sik7even; 11-04-06 at 03:17 PM.
Old 11-04-06, 03:21 PM
  #4  
I live in the lounge...

 
snowball's Avatar
 
Join Date: Aug 2004
Location: lathrup, MI
Posts: 2,000
Likes: 0
Received 0 Likes on 0 Posts
your only going to make 300hp NA with a P-port.
Old 11-04-06, 07:09 PM
  #5  
MODERATOR


iTrader: (137)
 
Alex Rodriguez's Avatar
 
Join Date: Jan 2005
Location: Houston Texas
Posts: 6,441
Received 9 Likes on 8 Posts
Originally Posted by Houstonderk
Oh god, another one. Hey by the way did you have a red second gen with maroon interior that has rotor7ven sticker on the front windshield? I was asking el nene about it.
do you still have it
Old 11-04-06, 07:20 PM
  #6  
Lives on the Forum

iTrader: (7)
 
Sideways7's Avatar
 
Join Date: Dec 2003
Location: Temple, Texas (Central)
Posts: 6,596
Received 9 Likes on 5 Posts
Originally Posted by snowball
your only going to make 300hp NA with a P-port.
Yep. With a streetport the max is about 200 to the wheels, and that is with a good port job, and a standalone with a good tune. Kep in mind this is also with a brand new s5 motor. With a bridge you can get 250 or so, but it will no longer be a decent street car.
If you want anything more than about 180-190 to the wheels, then you are better off doing a turbo swap.
Old 11-04-06, 07:29 PM
  #7  
My girl

iTrader: (3)
 
Houstonderk's Avatar
 
Join Date: Apr 2004
Location: Andrews AFB, MD
Posts: 2,173
Likes: 0
Received 2 Likes on 2 Posts
I totally didn't realize this was an n/a topic. My opinion would be to save and go turbo so there is all that room for better performance when its a streetported Tii. But there have been some people posting high numbers on there n/a. I just like to spool. lol
Old 11-04-06, 09:26 PM
  #8  
Moderator

iTrader: (5)
 
Funkspectrum's Avatar
 
Join Date: May 2003
Location: Santa Rosa, CA
Posts: 4,682
Received 17 Likes on 14 Posts
P-Port it!!! We need more P-Ported street cars!!
Old 11-04-06, 11:17 PM
  #9  
Senior Member

 
fc3sna's Avatar
 
Join Date: Feb 2005
Location: Vero Beach, Florida
Posts: 329
Likes: 0
Received 0 Likes on 0 Posts
just to be curious, and not to tread jack but how much does a p port cost and is it better to run carbs or stand alone with a p port
Old 11-04-06, 11:23 PM
  #10  
Lives on the Forum

 
Black91n/a's Avatar
 
Join Date: Sep 2003
Location: BC, Canada
Posts: 5,707
Likes: 0
Received 4 Likes on 4 Posts
It'll cost thousands, and either way you'll need a whole new intake, manifold and all. The only PP manifolds I've seen are for Webber's. You can get Webber style TB's though.

All else being equal, EFI is better, you get more control of the engine, allowing you to optimise it everywhere, whereas a carb is a compromise. I've got a PDF of an article comparing Webber style carbs and a Webber style TB on a street port 13B 6 port, the EFI was the most powerful.
Old 11-05-06, 01:00 AM
  #11  
Lives on the Forum

iTrader: (7)
 
Sideways7's Avatar
 
Join Date: Dec 2003
Location: Temple, Texas (Central)
Posts: 6,596
Received 9 Likes on 5 Posts
And about the carbs, there is no reason to run a carb if you can fun fuel injection. A proper FI setup is superior in every way to a carb setup, with one of the major benefits being that you have much better control over timing.

Last edited by Icemark; 11-05-06 at 01:39 AM.
Old 11-05-06, 01:51 AM
  #12  
Wait................What?

 
poor_red_neck's Avatar
 
Join Date: Apr 2003
Location: Raleigh/Cary, NC - USA
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
As others have said... 300 with a 2 rotor n/a would definately require a periphial port... and you can forget about driving to work with one. You won't make squat power until about 4K or so, and really start to make alot of power until about 8K or so... so fully balanced internals to make power to 10K or so. I know of a guy in raleigh who has a PP 1st gen... and uh yeah, you can't drive that think in traffic for ****.
Old 11-05-06, 12:20 PM
  #13  
Senior Member

 
fc3sna's Avatar
 
Join Date: Feb 2005
Location: Vero Beach, Florida
Posts: 329
Likes: 0
Received 0 Likes on 0 Posts
ok well any one who builds engines in florida that could tell me how much a pport rebuild would run, and how much the carb, and the fuel injection set up would run. if you know of any good places in fl let me know. i have an s4 vert (running) and an s5 coupe(blown coolant seals)
thanks
tommy
Old 11-05-06, 12:54 PM
  #14  
Saiga-12 Power!

iTrader: (4)
 
Juiceh's Avatar
 
Join Date: Oct 2004
Location: N of Chicago
Posts: 4,384
Likes: 0
Received 0 Likes on 0 Posts
Blake from Pinneaple Racing seems to think P-Ports can be very streetable. He's done it... alot...


Link from "Engine Building Thoughts thread in the Pinneapple Racing section:
https://www.rx7club.com/showpost.php...87&postcount=5
Old 11-05-06, 01:09 PM
  #15  
ROTOR7VEN

Thread Starter
 
sik7ven's Avatar
 
Join Date: Jul 2005
Location: orlando, fl
Posts: 380
Likes: 0
Received 0 Likes on 0 Posts
thank you guys for all the info, any more thoughts on Porting, Periphial, street or Bridge, pls comment or ask questions so others can answer and i can read, i really enjoy learnin about the rotary thanks alot once again guys
Old 11-05-06, 01:09 PM
  #16  
Wait................What?

 
poor_red_neck's Avatar
 
Join Date: Apr 2003
Location: Raleigh/Cary, NC - USA
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
you can't "rebuild" into a pport... its a completely different engine. I guess you could block the side ports, and drill a hole into the chamber. I honestly don't know.

Here is a pport rotor housing...



Now obviously, since you intake port is peripheral like the exhaust the side plates will be solid (no intake ports).


Juiceh... I guess it really does matter about thinks like intake runner length... the FB i've rode in with pports sucked. Very hard to drive "easily" around traffic... stop and go, etc.
Old 11-05-06, 02:06 PM
  #17  
Engine, Not Motor

iTrader: (1)
 
Aaron Cake's Avatar
 
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes on 91 Posts
Honestly, if you have to ask these questions, a bridge or peripheral port is something you are not ready for. Stick with a street or stock port for now and the move onto more radical porting when you have the experience needed to tune it (and assemble the engine).
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1987 T2
Build Threads
11
04-01-17 11:59 PM
scissorhands
New Member RX-7 Technical
0
09-16-15 01:25 PM



Quick Reply: Bridge Vs Streetport



All times are GMT -5. The time now is 10:58 PM.