Acceleration Performance...help!! - MINI Cooper Forum
Go Back   MINI Cooper Forum > Model Specific MINI Forums > MINI Cooper S > First Generation MINI Cooper S


First Generation MINI Cooper S MINI Cooper S 2002 - 2006

Mini2.com is the premier Mini Cooper Forum on the internet. Registered Users do not see the above ads.
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
2005 Mini S acceleration issues.... JTLaw First Generation Faults & Fixes 1 Mar 30th, 2014 12:14 PM
Power cut during acceleration MCS Matte 6464 Second Generation Faults & Fixes 0 Feb 13th, 2014 09:44 AM
Performance / tuning parts centre Essex, London, Kent ? Ellies Mini General Discussion 0 May 22nd, 2013 09:01 AM
My r56 jcw hesitates on acceleration kostas2012 Second Generation Faults & Fixes 7 Feb 14th, 2013 02:51 PM
'Hiccup' on acceleration Patchoulian Second Generation Faults & Fixes 4 Dec 31st, 2012 08:52 PM

 
LinkBack Thread Tools Rate Thread
  #1 (permalink)  
Old Jun 8th, 2014, 02:31 AM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 12
Local Time: 01:51 PM
Japan
Acceleration Performance...help!!

Hi All,

My MCS seems to be lacking in acceleration power when putting my foot down in low revs. 1st and 2nd seem to be ok but for example...if I am cruising at 3000rpm then floor it in 3rd... it seems to take a long time before I can feel that SC power/boost. I thought that with the SC the power should be there instantly, but I just don't seem to be getting it...or at least not all ?!

I have recently changed the Bypass valve to the DT valve which helped but not as much as I thought it would.
Also, I live in Japan and its getting very hot and humid here...would this have an effect on the performance?

looking for any feedback and pointers on where to look/ start to find what is resulting in this sluggish power!

Cheers and hope someone can help!
Reply With Quote
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old Jun 8th, 2014, 01:57 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,187
Local Time: 02:51 PM
United Kingdom Male
Hi ya

Have you done a reset on the ECM disconect the battery neg then poss leave it for 20 to 30 min re one t it poss then neg.

I would go over it and check your intercooler boots and bypass valve hose is ok, check all your vacuum hoses are ok to you map sensor and fuel pressure regulator.
Check your fuel pressure and regulator are ok

Have you got any mods fitted ?
Was the car ok before you fitted the bypass valve.
Reply With Quote
  #3 (permalink)  
Old Jun 10th, 2014, 08:42 AM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 12
Local Time: 01:51 PM
Japan
Hi Marque,

Thanks for your reply! Car was fine, but same as now before I changed the valve.

I did a ECU reset via the Speedo (holding in the button and turning key to first position etc) I shall disconnect the battery this weekend.

Boots looked ok when I did the valve change... any info what to look for? Same for the vacuum hoses, what should I be checking for? Good conditions and good air tight connections?

No Mods fitted, car is standard apart from the valve!

To check the fuel pressure and regulator...do I need to take the car to a shop or is it something I can do at home?

Thanks again mate
Reply With Quote
  #4 (permalink)  
Old Jun 10th, 2014, 02:53 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,187
Local Time: 02:51 PM
United Kingdom Male
Hi ya

The reset from the IKE cluster does not work the best way is to disconnect the battery.

The sc boot you need to look and see if there in cold condition no spits or holes and they are fitted properly.

Vacuum hoses as in good condition not splits cracks or holes all the pipe work is tight in there, they get damaged easy and break with old age.

You will have to take it to the shop to get the fuel pressure and flow checked unless you have the special tools. It's easy to do if you have the tools.

When the car is running try to see if you can hear any air leaks from around the intercooler area.

Also check you supercharger belt there should be one hole just visible on the locking tang if not change the belt, they do stretch and do slip.

If you look at the picture you will see the twisted tang there is a locking pin installed in the last hole this hole should just be visible if it's not the belt needs to be changed

When was the car last serviced
Attached Thumbnails
Click image for larger version

Name:	image.jpg
Views:	30
Size:	40.8 KB
ID:	175506  
Reply With Quote
  #5 (permalink)  
Old Jun 12th, 2014, 11:58 AM
MINI2 Newbie
Offline
 
Join Date: May 2014
Posts: 12
Local Time: 01:51 PM
Japan
Hey!

Thanks for the advice and information, I will take a look at the things I can this weekend and will try and get my car in to a shop to check the pressures soon!

Is it worth looking at running any cleaners through the fuel system? Injector cleaner for example? When I changed the BPV the throttle body looked quite dirty, is it worth cleaning?

Car was serviced when I bought it oil and filter changes etc..

Thanks for your information mate
Reply With Quote
  #6 (permalink)  
Old Jun 12th, 2014, 05:11 PM
MINI2 Master
Offline
 
Join Date: Feb 2011
Location: South london
Posts: 1,187
Local Time: 02:51 PM
United Kingdom Male
Quote: Originally Posted by DaveKay (original)
Hey!

Thanks for the advice and information, I will take a look at the things I can this weekend and will try and get my car in to a shop to check the pressures soon!

Is it worth looking at running any cleaners through the fuel system? Injector cleaner for example? When I changed the BPV the throttle body looked quite dirty, is it worth cleaning?

Car was serviced when I bought it oil and filter changes etc..

Thanks for your information mate

Hi ya

It's always worth checking the air filter and spark plugs.
A good fuel system cleaner is always worth while I use bg44k it's very good if you can get hold of it.
I would also replace your fuel filter. Even if it's not the problem it's well worth doing

http://www.billswebspace.com/MiniR50...erDIYGuide.htm

Throttle body is always worth cleaning if it's dirty :-)

Hope this helps
Reply With Quote
Sponsored Links
Advertisement
 
Reply


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

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
2005 Mini S acceleration issues.... JTLaw First Generation Faults & Fixes 1 Mar 30th, 2014 12:14 PM
Power cut during acceleration MCS Matte 6464 Second Generation Faults & Fixes 0 Feb 13th, 2014 09:44 AM
Performance / tuning parts centre Essex, London, Kent ? Ellies Mini General Discussion 0 May 22nd, 2013 09:01 AM
My r56 jcw hesitates on acceleration kostas2012 Second Generation Faults & Fixes 7 Feb 14th, 2013 02:51 PM
'Hiccup' on acceleration Patchoulian Second Generation Faults & Fixes 4 Dec 31st, 2012 08:52 PM

» Recent Threads
2006 1.4 Mini One D Idle Knocking Noise Just purchased.
Mar 4th, 2013 08:20 PM
Last post by vlado.rekso
Today 01:46 PM
1 Replies, 1,776 Views
how do i reset the airbag light?
Sep 1st, 2006 08:43 PM
Last post by jamesslittle
Today 01:43 PM
7 Replies, 40,553 Views
Bristol Chat
Mar 6th, 2006 03:49 PM
Last post by jamesslittle
Today 01:40 PM
15 Replies, 313 Views
Mini one speakers
Sep 22nd, 2014 11:50 AM
by Giddzz
Last post by Widgey
Today 01:35 PM
1 Replies, 182 Views
de-cat my miltek or remove resonator?
Aug 18th, 2014 08:52 PM
Last post by marque
Today 01:14 PM
3 Replies, 513 Views
Recommended Spark plugs?
Today 05:54 AM
Last post by marque
Today 01:11 PM
1 Replies, 83 Views
Need advice on what a mechanic "said "
Sep 24th, 2014 05:55 AM
Last post by marque
Today 01:07 PM
5 Replies, 1,813 Views
Mini Cooper S Parts program
Today 02:46 AM
Last post by marque
Today 01:06 PM
1 Replies, 135 Views
Resources
Today 01:00 PM
by Garrus
Last post by Garrus
Today 01:00 PM
0 Replies, 1 Views
Were these rims worth it?
Sep 3rd, 2014 08:17 PM
Last post by Garrus
Today 01:00 PM
10 Replies, 989 Views
2nd hand mini experience
May 22nd, 2014 05:57 PM
Last post by Garrus
Today 12:58 PM
7 Replies, 1,588 Views
Changing Battery in the Key???
Apr 20th, 2007 02:54 PM
Last post by Garrus
Today 12:21 PM
13 Replies, 52,135 Views
Mini Cooper 1.6 R56 oil in spark plug tunnels
Yesterday 09:59 AM
Last post by i-CONICA
Today 12:14 PM
1 Replies, 174 Views
Standard radio plays MP3?
Nov 25th, 2004 12:39 PM
Last post by Garrus
Today 12:09 PM
22 Replies, 10,743 Views
New Mini Cooper S 2014
Today 11:48 AM
by Garrus
Last post by Garrus
Today 11:48 AM
0 Replies, 33 Views
The Tyre Recommendation Thread
Apr 20th, 2008 01:26 PM
Last post by Garrus
Today 11:35 AM
214 Replies, 100,158 Views
Britax Duo Plus in R56 Cooper S Hatchback
Dec 15th, 2013 06:34 PM
by ican
Last post by Garrus
Today 11:34 AM
5 Replies, 1,520 Views
Leasing - My worksheet, I'm suspicious of dealer quote from Portland Mini
Sep 9th, 2014 06:32 PM
by hp79
Last post by Garrus
Today 11:30 AM
2 Replies, 483 Views
Tow Hitch for '13 Roadster
Feb 17th, 2014 05:56 AM
Last post by shokster
Today 10:39 AM
12 Replies, 1,502 Views
Mini Cooper S 2007 Disaster
Aug 20th, 2014 06:57 PM
Last post by MiniDeLux
Today 06:23 AM
4 Replies, 823 Views
» Premium
» Auto Insurance
Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.1

All times are GMT. The time now is 01:51 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2