Technical help Q & A Got A technical problem with you car? Keep it in here where the techies hang out and we will try to solve it for you!!

s2 boost?

Thread Tools
 
Search this Thread
 
Old Jul 1, 2006 | 09:04 AM
  #1  
BLING_IAN's Avatar
BLING_IAN
Thread Starter
Virgin
 
Joined: Jun 2006
Posts: 6
Likes: 0
From: fife, scotland
Default s2 boost?

hi ive recently bought a s2 rs turbo which was running 20psi of boost, as soon as i got it home i turned it down to 10psi. how would i know if it was safe to run it at 20psi again? thanks
Reply
Old Jul 1, 2006 | 09:29 AM
  #2  
SafeChav's Avatar
SafeChav
10K+ Poster!!
 
Joined: May 2005
Posts: 13,798
Likes: 1
From: Cheltenham, Gloucestershire
Default

Rolling road set up is the bestw ay.

Very sensible turning it down, almost guaranteed to of saved yourself from an expensive re-build
Reply
Old Jul 2, 2006 | 12:03 PM
  #3  
BLING_IAN's Avatar
BLING_IAN
Thread Starter
Virgin
 
Joined: Jun 2006
Posts: 6
Likes: 0
From: fife, scotland
Default

what sort of boost would u recommend? its gotta 1800 zetec bottom end. is there any way of tellin if it has low comp pistons?
Reply
Old Jul 2, 2006 | 01:14 PM
  #4  
SafeChav's Avatar
SafeChav
10K+ Poster!!
 
Joined: May 2005
Posts: 13,798
Likes: 1
From: Cheltenham, Gloucestershire
Default

You can only really get it set up and see what boost it will sufficiently fuel to.

Is it still running MFI?

Can't really tell anything about pistons short of removing the head
Reply
Old Jul 2, 2006 | 01:24 PM
  #5  
320 bhp's Avatar
320 bhp
I've found that life I needed.. It's HERE!!
 
Joined: May 2004
Posts: 1,017
Likes: 1
From: guisborough,cleveland
Default

do a compression test i bought a rst with a 2litre zvh suppost to have low comp pistons was running 22psi lasted 2weeks them boom take it from me check everything cos it costs ya a fortune
Reply
Old Jul 2, 2006 | 01:26 PM
  #6  
SafeChav's Avatar
SafeChav
10K+ Poster!!
 
Joined: May 2005
Posts: 13,798
Likes: 1
From: Cheltenham, Gloucestershire
Default

A compression test won't necessarily indicate low comp pistons, if say valves are leaking around the seats, rings are worn, etc......
Reply
Old Jul 2, 2006 | 03:19 PM
  #7  
antony215's Avatar
antony215
Escort Rs Turbo
 
Joined: May 2005
Posts: 3,487
Likes: 0
From: PORTSMOUTH
Default

Best to have it set up on a rolling road mate if the fuel has been set for 20psi then now you've turned it down it will be over fueling best to let a pro do it mate and not mess with the boost at all your self
Reply

Trending Topics

Old Jul 2, 2006 | 08:29 PM
  #8  
BLING_IAN's Avatar
BLING_IAN
Thread Starter
Virgin
 
Joined: Jun 2006
Posts: 6
Likes: 0
From: fife, scotland
Default

Thanks for your help. il get it booked in on the rolling road next week! will running at 10psi do it any damage?
Reply
Old Jul 2, 2006 | 09:00 PM
  #9  
reality's Avatar
reality
Too many posts.. I need a life!!
 
Joined: Jun 2006
Posts: 585
Likes: 0
From: Oop Norf
Default

It can do, you're best to stay off-boost until you get the fuelling and detonation checked out.. (go somewhere that specialises in turbo cars..)
Reply
Old Jul 3, 2006 | 08:12 AM
  #10  
SafeChav's Avatar
SafeChav
10K+ Poster!!
 
Joined: May 2005
Posts: 13,798
Likes: 1
From: Cheltenham, Gloucestershire
Default

If his cars been set to run at 20 maximum it should run less boost and fuel it proportionally.....
Reply
Old Jul 3, 2006 | 08:30 AM
  #11  
reality's Avatar
reality
Too many posts.. I need a life!!
 
Joined: Jun 2006
Posts: 585
Likes: 0
From: Oop Norf
Default

"If" and "Should" can often be expensive words.
Reply
Old Jul 3, 2006 | 08:34 AM
  #12  
SafeChav's Avatar
SafeChav
10K+ Poster!!
 
Joined: May 2005
Posts: 13,798
Likes: 1
From: Cheltenham, Gloucestershire
Default

Well hes turbed the boost down himself so that shouldnt be a gamble

I know what you mean though running excessively rich can be as bad as lean.

Im glad i didn't use ASSUME in there aswell
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
Russ Payne
Ford Sierra/Sapphire/RS500 Cosworth
1
Sep 25, 2015 08:29 PM
oilman
Trader Parts for Sale.
10
Sep 23, 2015 07:32 PM




All times are GMT. The time now is 02:44 AM.