Notices
ScoobyNet General General Subaru Discussion

Boys with P1`s and downpipes.

Thread Tools
 
Search this Thread
 
Old 27 March 2001 | 01:36 PM
  #31  
z80's Avatar
z80
Scooby Regular
 
Joined: Feb 2001
Posts: 144
Likes: 0
Post

Andy W,

Answering your Q re what M.Y was my car...

It was a P1. Brand New, fitted with the SS down pipe, before I took delivery.

If I want the cat back I'll probably go via the PE route with centre section & cat.

Detting? what detting?

Simon
Old 27 March 2001 | 01:47 PM
  #32  
Trout's Avatar
Trout
Scooby Regular
iTrader: (1)
 
Joined: Jan 1999
Posts: 15,271
Likes: 0
From: UK
Talking

I am reminded that by looking at the dyno site that I can substantiate Pats comments from my own experience.

I did second run to the one shown, with all things the same (as can be) and simply increased the advance by 1 deg across the (peak boost) range, peak torque increased from 256lb ft to 264lb ft (Paul Strong has the graphs but has not overlaid them as we were waiting for the d/p reading). So a relatively small change in timing and a big change in torque.

So any det will significantly reduce potential torque and power.

Since then I have fitted a downpipe, and although I have not proven this on a rolling road, performance figures have improved considerably. I suspect this is both an increase in torque, and also the fact the the peak boost now comes in at 3100rpm, with 1 bar available from 2700rpm - so even if the curve is not higher (264 is already pretty good for Scoob) the area under the curve is much larger!

So no detting AND a downpipe is thoroughly recommended.

Out of interest I fitted a BPM twin dump.

Cheers,

R
Old 31 March 2001 | 01:45 AM
  #33  
harj's Avatar
harj
Scooby Regular
 
Joined: Oct 1999
Posts: 1,717
Likes: 0
Question

Moray what are you taling about? I didn't see anyone name our good friend from Prodrive do you?

Old 02 April 2001 | 03:39 PM
  #34  
dowser's Avatar
dowser
Scooby Senior
 
Joined: Oct 2000
Posts: 3,105
Likes: 0
From: Zurich, Switzerland
Post

I've a PPP'ed my00 - then fitted a decat d/p. With the Prodrive backbox I was getting a lengthy peak boost figure....a bit frightening if the ecu can't back off enough.

I fitted an STi backbox while waiting for a knocklink - I'll be fitting it this week and experimenting (carefully!) after an ecu reset.

Common sense and a boost guage is the minimum before doing this I'd suggest - I'm also fitting the knocklink this week and a lambda one next

Richard
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
garethscott
General Technical
63
26 November 2015 03:42 PM
SwissTony
Member's Gallery
4
21 September 2015 11:26 AM
harj
ScoobyNet General
25
13 September 2000 04:48 PM
Neil Smalley
ScoobyNet General
1
11 September 2000 12:09 AM
Maverick
ScoobyNet General
19
11 May 2000 01:10 PM




All times are GMT +1. The time now is 03:25 AM.