Page:
Home > Help Needed / General Tech Chat > Part throttle lean off pipe

Ric

User Avatar

1566 Posts
Member #: 36
Post Whore

Basingstoke

13th Apr, 2008 at 05:54:51pm

What's the general feeling on this? Mine is still connected at the moment, but i know a lot of people block it off. Is there any advantage either way?

Many thanks.

stevieturbo

3596 Posts
Member #: 655
Post Whore

Northern Ireland

13th Apr, 2008 at 07:03:58pm

cant see any reason for blocking it off ?

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will


theoneeyedlizard

User Avatar

7265 Posts
Member #: 1268
The Boom Boom speaker Police!

Essex

13th Apr, 2008 at 07:39:08pm

Mine would lean out when going from a steady cruise to full throttle when it was connected.

In the 13's at last!.. Just

BENROSS

User Avatar

9812 Posts
Member #: 332
Resident Cylinder Head Modifier

Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem

13th Apr, 2008 at 07:40:33pm

leave it in there if the fuelings ok it means cruise MPG

rubicon

User Avatar

3756 Posts
Member #: 1709
I like granny porn.

LONDONSHIRE

13th Apr, 2008 at 08:30:33pm

which pipe is this then??

On 2nd Oct, 2009 Vegard said:

On 1st Oct, 2009 Jimster said:
I bet my first wank came quicker than your first mini turbo


These new modern turbos with their quick spool up time, would make the competition harder.


On 15th Aug, 2011 robert said:
phew!!! thank you brett for smashing in my back doors .( not something i imagined writing... EVER)

Nic

User Avatar

9327 Posts
Member #: 59
First mini turbo to get in the 12's & site perv

Herefordshire

13th Apr, 2008 at 10:58:35pm

mines on

Turbo Tel

User Avatar

1060 Posts
Member #: 588
Post Whore

Delaware, USA

13th Apr, 2008 at 11:05:10pm

I did some testing on this.

It really does not matter, it just leans the mixture a little at midrange for economy. If you ever polish a needle up, any effect it had will be polished out anyway. When selecting a needle I would just pick the one that works best with or without the leanoff pipe.

website:- http://www.terryhunt.co.uk


Bat

User Avatar

4559 Posts
Member #: 786
Post Whore

Bermingum

13th Apr, 2008 at 11:10:24pm

Hi,
I'd be tempted to polish the needle with it blocked off, then put it back on after.
Only if you can monitor the mixture though!
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary


Turbo Phil

User Avatar

4641 Posts
Member #: 20
My sister is so fit I won't show anyone her picture

Lake District

13th Apr, 2008 at 11:13:45pm

I had trouble getting the right fuelling with it connected, so mines blocked.

WWW.TURBO-MINI.COM


Turbo Tel

User Avatar

1060 Posts
Member #: 588
Post Whore

Delaware, USA

13th Apr, 2008 at 11:16:14pm


On 13th Apr, 2008 Bat said:
Hi,
I'd be tempted to polish the needle with it blocked off, then put it back on after.
Only if you can monitor the mixture though!
Cheers,
Gavin :)


There's quite a big difference... when I said a little I was not strictly trutheful!! The leanoff pipe does not affect 3/4 -full throttle but does change the rest. I ended up with quite different needles.

but hey, I only tried it once..

Edited by Turbo Tel on 13th Apr, 2008.

website:- http://www.terryhunt.co.uk


Bat

User Avatar

4559 Posts
Member #: 786
Post Whore

Bermingum

13th Apr, 2008 at 11:24:48pm

Hi,
I'm no expert on the subject, I skipped past SUs!
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary


rubicon

User Avatar

3756 Posts
Member #: 1709
I like granny porn.

LONDONSHIRE

14th Apr, 2008 at 08:04:33am

im still unsure of this pipe ,what do you connect it too?
Ron

On 2nd Oct, 2009 Vegard said:

On 1st Oct, 2009 Jimster said:
I bet my first wank came quicker than your first mini turbo


These new modern turbos with their quick spool up time, would make the competition harder.


On 15th Aug, 2011 robert said:
phew!!! thank you brett for smashing in my back doors .( not something i imagined writing... EVER)

theoneeyedlizard

User Avatar

7265 Posts
Member #: 1268
The Boom Boom speaker Police!

Essex

14th Apr, 2008 at 09:17:11am



It's the shiny black one that goes from the side of the carb to the top of the carb.



In the 13's at last!.. Just

Tom Fenton
Site Admin

User Avatar

15302 Posts
Member #: 337
Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

&

TM legend.

Rotherham South Yorkshire

14th Apr, 2008 at 09:17:54am

It is the external rubber pipe on a proper turbo SU that loops round from one stub to another on the carb itself, only about 5" o/a length.


On 29th Nov, 2016 madmk1 said:

On 28th Nov, 2016 Rob Gavin said:
 I refuse to pay for anything else


Like fuel 😂😂

rubicon

User Avatar

3756 Posts
Member #: 1709
I like granny porn.

LONDONSHIRE

14th Apr, 2008 at 09:37:50am

cheers gary/tom!

On 2nd Oct, 2009 Vegard said:

On 1st Oct, 2009 Jimster said:
I bet my first wank came quicker than your first mini turbo


These new modern turbos with their quick spool up time, would make the competition harder.


On 15th Aug, 2011 robert said:
phew!!! thank you brett for smashing in my back doors .( not something i imagined writing... EVER)

turbodave16v
Forum Mod

10980 Posts
Member #: 17
***16***

SouthPark, Colorado

14th Apr, 2008 at 01:37:37pm

I had most luck running it through a solenoid - closing it when i wanted to plant the throttle, and opening it other times. Was a PITA though, so off it came.

On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better


Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY



Tom Fenton
Site Admin

User Avatar

15302 Posts
Member #: 337
Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

&

TM legend.

Rotherham South Yorkshire

14th Apr, 2008 at 01:52:22pm

Could there be some cleverness possible here, with a MJ output setup to close this solenoid at high load points determined by the MAP sensor, and then open it again at cruise points again determined by the MAP sensor?


On 29th Nov, 2016 madmk1 said:

On 28th Nov, 2016 Rob Gavin said:
 I refuse to pay for anything else


Like fuel 😂😂

Nic

User Avatar

9327 Posts
Member #: 59
First mini turbo to get in the 12's & site perv

Herefordshire

14th Apr, 2008 at 01:54:58pm

indeed you could tom

Ive also thought about doing the same thing for my dumpvalve to stop it letting air in on idle

turbodave16v
Forum Mod

10980 Posts
Member #: 17
***16***

SouthPark, Colorado

14th Apr, 2008 at 02:03:33pm

I did think about this Tom, but ICBA, so the whole lot came off...

On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better


Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY



theoneeyedlizard

User Avatar

7265 Posts
Member #: 1268
The Boom Boom speaker Police!

Essex

14th Apr, 2008 at 02:21:12pm

Sounds like a good idea.

In the 13's at last!.. Just

Rob H

4314 Posts
Member #: 700
Formerly British Open Classic

The West Country

2nd Sep, 2008 at 10:56:23pm

Can these be retro fitted to NA HIF carbs? or is it something that only works under boost?

Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer

matty

User Avatar

8297 Posts
Member #: 408
Turbo Love Palace Fool

Aylesbury

2nd Sep, 2008 at 11:06:48pm

Can't see why not, because even on a turbo your generally running vacuum on cruise and not boost.

EDIT: Or I could be talking utter shite! *laughing*

Edited by matty on 2nd Sep, 2008.

https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel

www.fusionfabs.co.uk



1/4mile in 13.2sec @ 111 terminal on 15psi

Bat

User Avatar

4559 Posts
Member #: 786
Post Whore

Bermingum

3rd Sep, 2008 at 12:03:06am

Hi,
I thought there was one on the na carb although it may not look the same.
I saw it in the vizard book
Cheers,
Gavin :)

VEMs Authorised Installer / Re-seller. K head kits now available!

WB/EGT gauges. Click here for customers write-up

Visit www.doyouneedabrain.co.uk

My Mini build diary


robert

User Avatar

6753 Posts
Member #: 828
Post Whore

uranus

3rd Sep, 2008 at 11:18:04am

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=9974

ric you young stud ,check this out .

slight edit on this , i now have a t piece in the pipe from the front to the side ,and this goes to a adjustable valve in the car ,with a servo one way valve on it so it doesnt blow boost in the car .

Edited by robert on 3rd Sep, 2008.

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Turbo Tel

User Avatar

1060 Posts
Member #: 588
Post Whore

Delaware, USA

4th Sep, 2008 at 03:16:40am

I have changed my mind on this since my post further up.

Yes you can make it work with or without the leanoff pipe its just a matter of having the right needle but what i found was that the leaning effect of the pipe caused a problem at part throttle, full boost. If you try to correct that then the mixture at full throttle gets too rich.

After lots of experiments I have decided that its best to block it..
Mind you thats with My engine and turbo, maybe yours is different..

website:- http://www.terryhunt.co.uk

Home > Help Needed / General Tech Chat > Part throttle lean off pipe
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password:
Page: