Go Back   Subaru Impreza Forum - WRX STI Rally Performance Tuning > Subaru Impreza General > Subaru Impreza Discussions

Subaru Impreza Forum

Will i hit my 270bhp target
Reply
 
LinkBack Thread Tools Display Modes
Old 28 Jun 2010, 12:59 PM   #1 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Will i hit my 270bhp target

stainless 2 1/2 inch de cat exhaust, (decat, rear pipe and back box).

will i hit 270bhp with remap or does it need the up-pipe also
Offline   Reply With Quote
Old 09 Jul 2010, 06:05 AM   #2 (permalink)
Cool Scooby
 
dynamix's Avatar
 
Join Date: Feb 2008
Posts: 375
Send a message via MSN to dynamix
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dukey1234 View Post
stainless 2 1/2 inch de cat exhaust, (decat, rear pipe and back box).

will i hit 270bhp with remap or does it need the up-pipe also
Yep you will hit 270 - 280 with downpipe and centre decat. Sometimes a little more than that too if a 3 port boost solenoid fitted and mapped.

The uppipe cat is only worth a little power and for the hassle of taking the turbo off to change I would be inclined to leave it til you upgrade the turbo.
__________________
Duncan
Remaps for Subaru 2001 - 2010 | Classic 92-96 | Simtek | Syvecs
[racedynamix.com]
Moderator Authorised Advertiser
Offline   Reply With Quote
Old 09 Jul 2010, 09:10 AM   #3 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

Duncan if i use you for the remap how do i stand on tweaks when ive added other things,
Offline   Reply With Quote
Old 09 Jul 2010, 10:58 AM   #4 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dynamix View Post
Yep you will hit 270 - 280 with downpipe and centre decat. Sometimes a little more than that too if a 3 port boost solenoid fitted and mapped.

The uppipe cat is only worth a little power and for the hassle of taking the turbo off to change I would be inclined to leave it til you upgrade the turbo.
And 3 port boost solenoid, where do i get them can i fit it before map etc
Offline   Reply With Quote
Old 09 Jul 2010, 11:08 AM   #5 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

impreza turbo 3 port boost solenoid on eBay (end time 15-Jul-10 17:53:59 BST)
Offline   Reply With Quote
Old 09 Jul 2010, 11:09 AM   #6 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

PERRIN 3 PORT BOOST CONTROL SOLENOID FOR SUBARU IMPREZA on eBay (end time 09-Jul-10 16:15:30 BST)

This any good
Offline   Reply With Quote
Old 09 Jul 2010, 11:11 AM   #7 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

Subaru impreza Classic Turbo 3 Port Boost Solenoid on eBay (end time 14-Jul-10 11:12:11 BST)

Or this one
Offline   Reply With Quote
Old 09 Jul 2010, 10:44 PM   #8 (permalink)
Cool Scooby
 
dynamix's Avatar
 
Join Date: Feb 2008
Posts: 375
Send a message via MSN to dynamix
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dukey1234 View Post
Duncan if i use you for the remap how do i stand on tweaks when ive added other things,
Generally tweaks to the map are around 100-150 for future modifications.


On the 3 port solenoids - any 3 port soloid will work - either from the classic impreza or newer aftermarket versions. Very simple to wire/plumb in and I can do when mapping - takes 5 mins
__________________
Duncan
Remaps for Subaru 2001 - 2010 | Classic 92-96 | Simtek | Syvecs
[racedynamix.com]
Moderator Authorised Advertiser
Offline   Reply With Quote
Old 11 Jul 2010, 02:23 AM   #9 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dynamix View Post
Yep you will hit 270 - 280 with downpipe and centre decat. Sometimes a little more than that too if a 3 port boost solenoid fitted and mapped.

The uppipe cat is only worth a little power and for the hassle of taking the turbo off to change I would be inclined to leave it til you upgrade the turbo.

What boost solenoid is standard on my 2001 wrx then, and why is a 3 port one better.
Offline   Reply With Quote
Old 11 Jul 2010, 07:27 AM   #10 (permalink)
Cool Scooby
 
dynamix's Avatar
 
Join Date: Feb 2008
Posts: 375
Send a message via MSN to dynamix
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dukey1234 View Post
What boost solenoid is standard on my 2001 wrx then, and why is a 3 port one better.
You have a 2 port boost solenoid on your car as standard with a t piece from the turbo and actuator. The pipe from the turbo should have a restrictor pill in it to help the actuator see less pressure and hold shut longer.

It doesnt work particularly well tbh and coupled with a very weak actuator you struggle to get above 1.1-1.2 bar of peak boost with it and boost then bleeds away the further up the rev range you go. This is fine for the 270bhp target but it does make it a little low in torque.

Running a 3 port solenoid means you can isolate the actuator from seeing any opening pressure until we want it to. Therefore we can run much higher boost and hold it steady aswell as holding onto more of this boost at the top end of the rev scale. This will take it above the 270bhp for sure.

A 3 port solenoid is about 60 new or 30 second hand and is well worth it - needs mapping for though (please dont fit unless mapping immediately)
__________________
Duncan
Remaps for Subaru 2001 - 2010 | Classic 92-96 | Simtek | Syvecs
[racedynamix.com]
Moderator Authorised Advertiser
Offline   Reply With Quote
Old 11 Jul 2010, 12:19 PM   #11 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

PERRIN 3 PORT BOOST CONTROL SOLENOID FOR SUBARU IMPREZA on eBay (end time 08-Aug-10 16:15:30 BST)

Is this going to be better than a second hand standard one. or better than a new standard one. or it the oem one a better choice. i can then get it ready for when you map it
Offline   Reply With Quote
Old 11 Jul 2010, 09:26 PM   #12 (permalink)
Cool Scooby
 
dynamix's Avatar
 
Join Date: Feb 2008
Posts: 375
Send a message via MSN to dynamix
Re: Will i hit my 270bhp target

The perrin one is pretty good but I have never found any issues with the std old second hand ones assuming they are still working.
__________________
Duncan
Remaps for Subaru 2001 - 2010 | Classic 92-96 | Simtek | Syvecs
[racedynamix.com]
Moderator Authorised Advertiser
Offline   Reply With Quote
Old 12 Jul 2010, 12:42 AM   #13 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

DYNAMIX

How much notice do you need for a map, im in barnsley, south yorkshire.
I should be able to afford it on 24th (pay day) but i wont know till 24th as i need to buy a 3 port boost solenoid, walbro fuel pump, uprated panel filter. as well before.
__________________
J-Autos (Barnsley) 07929 509124 (w w w.j-autos.com)
Power in pointless without reliability
Offline   Reply With Quote
Old 12 Jul 2010, 06:10 AM   #14 (permalink)
Cool Scooby
 
dynamix's Avatar
 
Join Date: Feb 2008
Posts: 375
Send a message via MSN to dynamix
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dukey1234 View Post
DYNAMIX

How much notice do you need for a map, im in barnsley, south yorkshire.
I should be able to afford it on 24th (pay day) but i wont know till 24th as i need to buy a 3 port boost solenoid, walbro fuel pump, uprated panel filter. as well before.
I am in yorkshire mapping on the 28th if that is any good.
__________________
Duncan
Remaps for Subaru 2001 - 2010 | Classic 92-96 | Simtek | Syvecs
[racedynamix.com]
Moderator Authorised Advertiser
Offline   Reply With Quote
Old 12 Jul 2010, 11:30 AM   #15 (permalink)
Cool Scooby
 
dukey1234's Avatar
 
Join Date: Jul 2009
Location: barnsley SY
Posts: 247
Re: Will i hit my 270bhp target

Quote:
Originally Posted by dynamix View Post
I am in yorkshire mapping on the 28th if that is any good.
Im working on the 28th it needs to be a saturday really for me as i struggle to get days off in the week.
__________________
J-Autos (Barnsley) 07929 509124 (w w w.j-autos.com)
Power in pointless without reliability
Offline   Reply With Quote
Reply

Bookmarks


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

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pedercini target points after Valencia test boost News_Bot Superbike News 0 01 Apr 2009 04:10 PM
Glock achieves season target three races early. News_Bot Formula News 0 28 Sep 2008 10:50 PM
One target, two reasons for Bayliss. News_Bot Superbike News 0 03 Sep 2008 03:21 PM
Ferrari target Kubica has 'extra ingredient'. News_Bot Formula News 0 21 Aug 2008 09:19 AM
Improving Renault target fourth. News_Bot Formula News 0 20 Aug 2008 10:08 AM


All times are GMT. The time now is 07:42 AM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.