Ford Sierra/Sapphire/RS500 Cosworth This forum is for discussion of all things pertaining to the Ford Sierra Cosworth.

Some boost questions

Thread Tools
 
Search this Thread
 
Old Apr 20, 2008 | 08:03 PM
  #1  
Super5's Avatar
Super5
Thread Starter
15000
 
Joined: Jun 2006
Posts: 41
Likes: 0
Default Some boost questions

Hi, Folks

I have some questions about the boost settings on my 2wd saph!

It's fitted with a t3, 803's, rs 500 int, 3"scorpion.

What pressure can hold a t3 turbo?
Mine is peaking very short 25 psi and holds 15 psi.

Why does the boost drops so much? can that be the amal valve?

I have shortly fitted a -34 actuator and then it holds 20 psi, but would that be healty for the t3 turbo?

Cheersss

Martijn
Reply
Old Apr 20, 2008 | 08:36 PM
  #2  
KSA-Cossie's Avatar
KSA-Cossie
Professional Waffler
iTrader: (4)
 
Joined: May 2004
Posts: 25,439
Likes: 19
From: Shutting down jap crap
Default

I ran my t3 at 26 peak dropping to 21 held.
Reply
Old Apr 20, 2008 | 08:48 PM
  #3  
xr_craig's Avatar
xr_craig
PassionFord Post Whore!!
20 Year Member
iTrader: (2)
 
Joined: Oct 2003
Posts: 4,033
Likes: 48
From: East Yorkshire
Default

Should be fine mate. Boost dropping so much was probably down to a tired actuator, thats why it's not as bad now
Reply
Old Apr 20, 2008 | 08:51 PM
  #4  
Jasesapphy's Avatar
Jasesapphy
PassionFord Post Whore!!
iTrader: (1)
 
Joined: Jul 2003
Posts: 4,542
Likes: 1
From: Bournemouth, Poole, Dorset
Default

you need a good -31, a -34 too much, should never really need to use one unless you need high boost i use a -31 with 27psi on a T34,
Reply
Old Apr 21, 2008 | 02:33 PM
  #5  
Yura's Avatar
Yura
Too many posts.. I need a life!!
 
Joined: Jul 2007
Posts: 581
Likes: 1
From: Kiev, Ukraine
Default

my T3 peaks 25psi, hold 21-22psi - and this is not the limit. I use -31 and boost controller.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
timsrs
Ford Sierra/Sapphire/RS500 Cosworth
5
Nov 13, 2018 11:48 AM
abz474
Cars for Sale
9
Nov 1, 2015 06:53 PM
Mark RS
Ford RS Cosworth Parts for Sale
7
Oct 12, 2015 06:01 AM
M7 COS
Wheels and Tyres
3
Oct 1, 2015 04:46 PM
Russ Payne
Ford Sierra/Sapphire/RS500 Cosworth
1
Sep 25, 2015 08:29 PM




All times are GMT. The time now is 10:13 AM.