Single Turbo RX-7's Questions about all aspects of single turbo setups.

TO4S and Std Ports

Thread Tools
 
Search this Thread
 
Old 09-26-03, 06:53 AM
  #1  
Full Member

Thread Starter
 
Matt RC-Racing's Avatar
 
Join Date: Oct 2002
Location: New Zealand
Posts: 74
Likes: 0
Received 0 Likes on 0 Posts
TO4S and Std Ports

Wanting to know what sort of power is obtainable from the TO4S on std FD ports and at what boost pressure and exh housing size.

Please don't rant on about, fueling, exh etc... or 'go search' as I've been looking for ages!
Old 09-26-03, 07:49 AM
  #2  
Weird Cat Man

 
Wargasm's Avatar
 
Join Date: Aug 2001
Location: A pale blue dot
Posts: 2,868
Likes: 0
Received 3 Likes on 3 Posts
From my page at http://www.catenet.net/dyno.php

Shawn made about 320 rwhp with a stock port at 13 PSI. I am not 100% sure of the exhaust housing, but I think it was 1.00.

http://www.catenet.net/graph.php?car70=1&SUBMIT=GRAPH

Just as another datapoint, my car makes a little over 400 rwhp at 15 PSI with a street port (T04S with 1.00 housing).

Brian
Old 09-26-03, 04:37 PM
  #3  
Glug Glug Glug Burp

 
jdhuegel1's Avatar
 
Join Date: Jan 2002
Location: Scott AFB, IL
Posts: 3,819
Likes: 0
Received 0 Likes on 0 Posts
Re: TO4S and Std Ports

Originally posted by Matt RC-Racing

Please don't rant on about, fueling, exh etc... or 'go search' as I've been looking for ages!
Now why would we do that?

Old 09-26-03, 07:27 PM
  #4  
Rotary Enthusiast

 
radkins's Avatar
 
Join Date: Aug 2001
Location: Waiting for Indykid to catch up
Posts: 1,236
Likes: 0
Received 1 Like on 1 Post
I made 434rwhp on a large street port.
Old 09-27-03, 01:57 AM
  #5  
I Sold My Car 2 the Devil

 
wonder1and's Avatar
 
Join Date: Oct 2001
Location: Duncanville, Tx
Posts: 2,361
Likes: 0
Received 0 Likes on 0 Posts
333 on stock motor... 425 w/ porting
Old 09-27-03, 04:38 AM
  #6  
Banned. I got OWNED!!!
 
20B Doorslammer's Avatar
 
Join Date: Mar 2003
Location: NZ
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
So we're agreed on around the 320hp mark?

Out of interest, what does a std FD read on the dyno in the US?
Old 09-27-03, 08:42 AM
  #7  
Lives on the Forum

iTrader: (126)
 
allrotor93's Avatar
 
Join Date: Jul 2001
Location: Cary, NC
Posts: 6,703
Likes: 0
Received 3 Likes on 3 Posts
we just installed one on a friends car and it is pretty damn stout at 12lbs. i feel more than 320. more like 350.
Old 09-27-03, 11:05 AM
  #8  
'Tuna'

 
crispeed's Avatar
 
Join Date: Feb 2001
Location: Miami,Fl,USA
Posts: 4,637
Likes: 0
Received 3 Likes on 3 Posts
Originally posted by 20B Doorslammer
So we're agreed on around the 320hp mark?

Out of interest, what does a std FD read on the dyno in the US?
A stock FD in good mechanical condition normaly would do between 210 to 220 rwhp on a Dynojet Dyno.
Old 09-27-03, 02:44 PM
  #9  
Senior Member

iTrader: (4)
 
Fox4Life's Avatar
 
Join Date: Jul 2002
Location: Clarkston, MI
Posts: 417
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by Wargasm
From my page at http://www.catenet.net/dyno.php

Shawn made about 320 rwhp with a stock port at 13 PSI. I am not 100% sure of the exhaust housing, but I think it was 1.00.

http://www.catenet.net/graph.php?car70=1&SUBMIT=GRAPH

Just as another datapoint, my car makes a little over 400 rwhp at 15 PSI with a street port (T04S with 1.00 housing).

Brian
Hey wargasm is that exhaust housing a divided or undivided? just wondering whether i should go with a 1.00 or a 1.15 divided for stock ports.
Old 09-27-03, 11:08 PM
  #10  
Banned. I got OWNED!!!
 
20B Doorslammer's Avatar
 
Join Date: Mar 2003
Location: NZ
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by crispeed
A stock FD in good mechanical condition normaly would do between 210 to 220 rwhp on a Dynojet Dyno.
So I'd be safe in saying that US Dynos read slightly higher than NZ/AU/UK dynos at the wheels?
Old 09-28-03, 04:25 PM
  #11  
Weird Cat Man

 
Wargasm's Avatar
 
Join Date: Aug 2001
Location: A pale blue dot
Posts: 2,868
Likes: 0
Received 3 Likes on 3 Posts
Fox,

It's divided....

http://www.zeroglabs.com/rx7/newturbo.htm

Brian
Old 10-01-03, 02:11 AM
  #12  
Full Member

 
Join Date: Dec 2002
Location: Tucson,Arizona
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Why only 320 on a T04S? I made 340 on sotck twins with stock ports at 12psi.
Old 10-01-03, 11:03 AM
  #13  
Full Member

 
sanfordman's Avatar
 
Join Date: Apr 2002
Location: raleigh, nc
Posts: 176
Likes: 0
Received 0 Likes on 0 Posts
I have that setup on mine and at 12lbs with stock ports it f#cking hauls ***. I beat a 2001 cobra mustang with an aftermarket supercharger in it at 12lbs. My mechanic says it feels like 350 to the wheels (and I trust his knowledge on rotarys). I have yet to dyno it, just bought my boost controller and plan on upping the boost to 16, then to 20 (hee hee) on race gas. I will post my results. Pray to the rotary gods for me.-B
Old 10-01-03, 12:50 PM
  #14  
Senior Member

 
Conv.WS6's Avatar
 
Join Date: Apr 2001
Location: Winchester, VA
Posts: 352
Likes: 0
Received 0 Likes on 0 Posts
Just to help you out, i made 371rwhp with 12.5x 18's in the rear @16psi with my TO4S Stock Reman motor.
Each additional psi, we saw about 10-11rwhp increase.
Hope that helps.
Ralph
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
iamsisyphus
2nd Generation Specific (1986-1992)
6
09-27-15 01:42 PM
josef 91 vert
2nd Generation Specific (1986-1992)
14
09-17-15 09:22 PM
dillrx7
Single Turbo RX-7's
3
09-07-15 09:38 AM



Quick Reply: TO4S and Std Ports



All times are GMT -5. The time now is 08:00 PM.