What's new
Porsche 911 UK Enthusiasts Online Community Discussion Forum GB

Welcome to the @Porsche911UK website. Register a free account today to become a member! Sign up is quick and easy, then you can view, participate in topics and posts across the site that covers all things Porsche.

Already registered and looking to recovery your account, select 'login in' and then the 'forget your password' option.

Used Porsche Cars for sale in Slough, Berkshire | RSJ Sports Cars

2001 C4 project car

Hopefully!!! I'll find out when I get my hands on them.

MC
 
I popped in to see Alex last week as I was up there, they looked good to me MC :grin:
I`ll be back up there on Thursday if you need me to pick anything up for you while I`m there :thumb:
 
Can i ask a question as im seriously confused .. i'm the first to admit mods and me just dont work , too many years fixing the standard cars im afraid .

You are fitting 6 throttle bodys instead of one .. does this allow better air flow to individual cyls ?

I assume the maf will be fitted to a pipe where the original throttle would have been but i'm struggling to see a difference 6 throttles will make over one large one .. and the adjustment for each would need to be perfect.

A lot of work and parts to gain something the system already does ?

Best i can think of is air flow for each cyl would increase a small amount but this is way beyond what i can get my head around .. sorry .

Also thank you .
 
I'm far from an expert, but:

- Throttle response, with each throttle butterfly positioned very close to the intake valve, is very sharp
- You can run much lumpier cams than with a single large throttle
- The ITB butterfly is 50mm wide, which gives an area of 19.63cm per throttle, or ~118cm in total
- A single 82mm throttle gives an area of 53cm, less than half that of the ITB's
- They sound awesome
- If you can see them they look extremely cool
- You'd normally run alpha-n with ITB's, rather than have a MAF in the airflow
 
Dammit said:
I'm far from an expert, but:

- Throttle response, with each throttle butterfly positioned very close to the intake valve, is very sharp
- You can run much lumpier cams than with a single large throttle
- The ITB butterfly is 50mm wide, which gives an area of 19.63cm per throttle, or ~118cm in total
- A single 82mm throttle gives an area of 53cm, less than half that of the ITB's
- They sound awesome
- If you can see them they look extremely cool
- You'd normally run alpha-n with ITB's, rather than have a MAF in the airflow
Click to expand...

Thank you .. it helps but ..

- You'd normally run alpha-n with ITB's, rather than have a MAF in the airflow .. i have no idea what that means
 
Sorry, alpha refers to throttle angle, n is rpm - essentially you map the car on a dyno so the ECU knows, for a specific throttle angle and engine speed, what fuel and spark is required. You also need to know air temperature/density, so you can fuel accordingly.

It removes the MAF from airflow, meaning that when the butterflies are fully open there's nothing in the way of the airflow.
 
Aghhh you remove the maf and use a TPS to take its place with a set map in the dme .

Im guessing dme for altitude , its in built , ambient air temp sensor covers the temp .

clever .

Thank you .
 
Great thread - I've just read all 40 pages and I'm both in awe and quite jealous! :worship:
 
The info in this thread is first class for the rest of us.

I love it :thumb:
 
Thanks for the kind words guys. Progress has been a bit slow recently, things are going on in the background on the engine front, and hopefully soon on the bodywork, but nothing fun to share. I'm up to my elbows in doing an air con overhaul on an old Merc whilst the garage was free.....

I have put together a short video of my attempts with a stud extractor on the M96 engine exhaust studs. I'll do another one for using the Stomski jig when that arrives.



MC

Edited to update link to new version of video.
 
Thanks for the note on the video, I'll check that when I get a chance and correct it. It was a Laser impact stud extractor.



I might get the smaller one as well, to try on the stud that this one was slipping on.

Things are happening on the bodywork finally.



MC
 
You must log in or register to reply here.

Similar threads

Ghostrider78
Project Thread ‘TIGGER’
Replies
12
Views
905
Hugh_
H
A
Wanted 996.2 manual coupe, preferably with spoiler.
Replies
5
Views
467
9XXs
9
T
Confusing Oil Pressure Problem
2
Replies
18
Views
2K
bananaz
B
T
C4 front subframe drop
Replies
8
Views
840
tooslow
T
M
P0011 recurring issue. Help!
Replies
2
Views
570
mi6_team
M
S
For Sale Porsche 997.1 C4S Tip with FULL ENGINE REBUILD £24.000
Replies
8
Views
1K
Steve Wright
S
D
Help please with Tiptronic selector stiff to operate in all conditions
Replies
1
Views
243
911UK
911UK
Used Performance Porsche Specialists

Latest posts

New Threads

Porsche Model Range

Porsche 911

Porsche 992: 2018- Porsche 992: 2018- Porsche 991: 2011-2019 Porsche 991: 2011-2019 Porsche 997: 2004-2012 Porsche 997: 2004-2012 Porsche 996: 1997-2005 Porsche 996: 1997-2005 Porsche 993: 1993-1998 Porsche 993: 1993-1998 Porsche 964: 1989-1993 Porsche 964: 1989-1993 Porsche Carrera 3.2: 1983-1989 Porsche Carrera 3.2: 1983-1989 Porsche Carrera SC: 1977-1983 Porsche Carrera SC: 1977-1983 Porsche 930 Turbo: 1975-1989 Porsche 930 Turbo: 1975-1989 Porsche Early 911: 1964-1977 Porsche Early 911: 1964-1977

Porsche Hypercars

Porsche 918 Spyder Porsche 918 Spyder Porsche Carrera GT Porsche Carrera GT Porsche GT1 Porsche GT1 Porsche 959 Porsche 959

Other Current Porsche Model

Porsche Taycan : (2019-0%) Porsche Taycan : (2019-0%) Porsche Macan : 2013- Porsche Macan : 2013- Porsche Panamera : 2009- Porsche Panamera : 2009- Porsche Cayman: 2005- Porsche Cayman: 2005- Porsche Cayenne: 2003- Porsche Cayenne: 2003- Porsche Boxster: 1997- Porsche Boxster: 1997-

Porsche Legacy Models

Porsche 928 Porsche 928 Porsche 968 Porsche 968 Porsche 944 Porsche 944 Porsche 924 Porsche 924 Porsche 914 Porsche 914 Porsche 912 Porsche 912 Porsche 904 Porsche 904 Porsche 550 Porsche 550 Porsche 356 Speedster Porsche 356 Speedster Porsche 356 Porsche 356

Forum statistics

Threads
124,540
Messages
1,441,277
Members
48,949
Latest member
alanjf

porsche insurance porsche parts porsche sales porsche car sales porsche for sale
porsche classic sales porsche tuning porsche sold porsche specialist porsche engine rebuilds porsche driver training porsche car sales porsche exhausts

Community platform by XenForo® © 2010-2024 XenForo Ltd. XenForo theme by xenfocus

www.911uk.com @Porsche911UK THE DEFINITIVE PORSCHE FORUM Copyright © 911UK 2002-2024 All rights reserved.

911uk.com is not associated and is wholly independent of Porsche Automobil Holdings SE, Dr. Ing.h.c.F.Porsche AG, Porsche Cars GB, its subsidiaries and offical Porsche centres. Any word, phrase or graphic that in any way resembles anything to do with the Porsche name or organisation are registered trademarks of Porsche Automobil Holdings SE and Dr. Ing.h.c.F. Porsche AG.

Back
Top