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

HOW to increase HP on an s5 turbo II

Thread Tools
 
Search this Thread
 
Old 04-19-05, 03:07 PM
  #1  
Senior Member

Thread Starter
 
Camrann's Avatar
 
Join Date: Feb 2005
Location: Fort worth, TX
Posts: 327
Likes: 0
Received 0 Likes on 0 Posts
Exclamation HOW to increase HP on an s5 turbo II

Can I just buy a new boostcontroller and blowoff valve and up the boost and gain alot more power? I read that stock it only has .7 psi is that right??? will increasing boodt blow the motor??? Please help
Old 04-19-05, 04:09 PM
  #2  
7th Heaven

iTrader: (9)
 
slpin's Avatar
 
Join Date: Nov 2004
Location: California
Posts: 3,654
Likes: 0
Received 1 Like on 1 Post
if you have to ask
yes... YOU will blow it up....
Old 04-19-05, 04:12 PM
  #3  
Senior Member

 
RestoTII's Avatar
 
Join Date: Jul 2001
Location: Havre de Grace, MD
Posts: 576
Likes: 0
Received 0 Likes on 0 Posts
Full exhaust (Racing Beat), Fuel Cut Defender, and Air Intake will probably put you at the highest (if not a little over) boost you'll want to run without lookuing into some bigger modifications.

You can also look into removing some emmissions eq if you want, but depending on your smog rules, that might be a pain in the ***. Most everything else I can think of seems like it'll be a big project.

Or.... you could sell me the S5 TII and go buy a modded 1st gen.
Old 04-19-05, 04:15 PM
  #4  
I am 2Furious

 
gingenhagen's Avatar
 
Join Date: Sep 2004
Location: NJ / Philly
Posts: 846
Likes: 0
Received 0 Likes on 0 Posts
http://fc3spro.com/TECH/FM2W/power.htm

Good site with lots of info.
Old 04-19-05, 05:09 PM
  #5  
Eats, Sleeps, Dreams Rotary
iTrader: (1)
 
Node's Avatar
 
Join Date: Jul 2001
Location: Stinson Beach, Ca
Posts: 3,383
Likes: 0
Received 2 Likes on 2 Posts
buy a boost gauge, used HKS F-Con, a Walbro 255 Fuel pump and the Racing Beat Turboback exhaust and make your own intake.
Thats my suggestion.
Then after that get a manual boost controller and maybe a front mount intercooler.

That is a safe reliable setup. Kinda gets expensive but you have to pay to play.



The car has a Fuel Cut which cuts fuel to the rear rotor once it hits a certain psi and that can blow your rear rotor easy. You need a FCD (Fuel Cut Defenser). The HKS F-Con comes with one, but the FCon costs about $1000 or so new. But used you can pick one up for around $250 or so. And its better than an S-AFC.

The racing beat exhaust has a good tone and sounds nice but isnt super annoying and won't attract any cops. It's only downfalls are the price and the weight, but the new style is SS so that is nice. Definately worth it. It's full 3"
You would have to have a custom fitted cat to pass emissions.

The Walbro is a good cheap pump
Old 04-19-05, 05:52 PM
  #6  
Windsor, Ont

 
Join Date: Sep 2002
Location: Windsor, Ont
Posts: 1,175
Likes: 0
Received 0 Likes on 0 Posts
I was going to suggest a RTEK chip, to take care of fuel cut and allow for 720cc injectors without a S-AFC but you got a S5, and they only work with S4's so far..

but that brings up another point, get a S-AFC and learn how to use it.
Old 05-04-05, 10:50 AM
  #7  
RX7less **(

iTrader: (6)
 
igottafc's Avatar
 
Join Date: Dec 2003
Location: Novi Michigan
Posts: 6,916
Likes: 0
Received 0 Likes on 0 Posts
NODE: how much of a power gain did you get with the Fcon? how are your experiences with it?
Old 05-04-05, 11:53 AM
  #8  
Eats, Sleeps, Dreams Rotary

iTrader: (1)
 
Snrub's Avatar
 
Join Date: Jun 2001
Location: London, Ontario, Canada
Posts: 3,106
Likes: 0
Received 0 Likes on 0 Posts
How much are you looking to gain? You may not have to be particularly elaborate. I acheived a 35-40hp bump with stock boost and a fairly conservative 2.5" exhaust.
Old 05-04-05, 12:41 PM
  #9  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
Oh man...
Old 05-10-05, 06:45 AM
  #10  
Full Member

 
denver's Avatar
 
Join Date: Jun 2004
Location: Dominican Republic
Posts: 50
Likes: 0
Received 0 Likes on 0 Posts
I have a S5 TII, i buy a Ecu with a Chip.
With the Ecu i make my car up to 14 psi,, with stock injector, and stock motor, you don't need a FCD, because the ecu have a internal FCD.
Old 05-10-05, 01:21 PM
  #11  
Eats, Sleeps, Dreams Rotary

iTrader: (1)
 
Snrub's Avatar
 
Join Date: Jun 2001
Location: London, Ontario, Canada
Posts: 3,106
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by J-Rat
Oh man...
?
Old 05-10-05, 01:34 PM
  #12  
Senior Member

 
bigturbo's Avatar
 
Join Date: Nov 2004
Location: co
Posts: 484
Likes: 0
Received 0 Likes on 0 Posts
Also you guys are forgeting one cheap really great mod. 3 inch mandrel bend tid pipe. That mod made 2 psi more of boost by itself and much better air flow.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
C. Ludwig
Single Turbo RX-7's
49
01-30-19 06:31 AM
stickmantijuana
Microtech
30
04-23-16 06:37 PM
ChrisRX8PR
Single Turbo RX-7's
18
08-21-15 01:56 PM



Quick Reply: HOW to increase HP on an s5 turbo II



All times are GMT -5. The time now is 09:11 PM.