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Author Subject: Throttle bodies, catcams etc and mpg???
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #1
Hello to all,

I have recently purchased a lovely modified GTi-6. It has throttle bodies, catcams, omex 600, freeflow manifold, decat, exhaust etc.

It is for daily use while i carry out some maintenece on my other car, i was only looking for a standard one really but got carried away.

I have had cars with throttle bodies before and found they are not much more thirsty driving carefully but will tend to drink it when opened up as you'd expect. Currently, although i haven't done lots of miles yet, a careful 40 mile drive - mainly motorway at 60-70 mph is seeing 24mpg.

What do people get with this sort of set up?
Posted 17th Jan 2012 at 09:11
gman

Seasoned Pro

Location: Didcot

Registered: 25 Oct 2007

Posts: 1,471

Status: Offline

Post #2
That sounds a little excessive. A standard 6 should average around 30-32 mpg, shouldn't be that different if you've been driving it like miss daisy.

________________________________________

1992 Onyx Black 205 GTI-6
2005 Honda S2000 (Sold)
2002 Audi S3 (Sold)
2005 Clio 182 Trophy (sold)
Posted 17th Jan 2012 at 09:42
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #3
From Jonnie perhaps from ebay for about 2k?

To be fair the standard does F-all mpg at about 28-29 average.

Welcome anyways!Thumbs up

________________________________________

Nothing to see here
Posted 17th Jan 2012 at 09:43
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #4
with a decent map they should be no worse than a standard engine, depending on the cams of course.

should be able to get mid 30's form them really.

________________________________________

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Bring on the Trumpets.

Posted 17th Jan 2012 at 09:59
mattgti6phase2

Seasoned Pro

Location: inside my 6 abusing the tarmac!!

Registered: 16 Jul 2010

Posts: 2,371

Status: Offline

Post #5
Welcome along.

What power is she running?

________________________________________

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Team: 40.2 MPG Smile
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Posted 17th Jan 2012 at 10:10
anth

Seasoned Pro

Location: Colchester

Registered: 04 Apr 2006

Posts: 3,651

Status: Offline

Post #6
It's probably over fueling.

Get the map checked.
Posted 17th Jan 2012 at 10:22
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #7
The car was originally modified by pug1off. I have spoken to Matt there a few times who has been very helpful, really nice bloke.

The map was checked and altered last year by Advanced Motorsport which produced 174bhp at the wheels. I don’t know what it was originally as I don’t have that paperwork.

When driving slow, pulling up and stopping, you car really smell fuel. I think it’s over fuelling too much and Matt recommended I get it check by Northampton motorsport as he thinks it should really do around 10% less than standard mpg as a guide.

24mpg 60-70 mph driving suggests an everyday 20mpg or less average which seems really quite low. Its going to cost me about £300 est to get it checked and adjusted but before I spill out more cash I want a good idea I will get an improvement rather than waste money.
Posted 17th Jan 2012 at 10:25
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #8
it wont cost you £300 to get it checked, but it will cost £300+ to have the map adjusted properly.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 17th Jan 2012 at 10:47
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #9
Its £90 + VAT an hour, expecting a 2 hour window for setup, check and minor adjustment. I'm also calculating in the 170 mile round trip. It can only go up from there really.
Posted 17th Jan 2012 at 10:51
dcc

Senior User

Location: Wales

Registered: 24 Feb 2009

Posts: 502

Status: Offline

Post #10
Well my bodies usually see me 25mpg driving it the way I like to drive, and I see about 35 on the motorway at 55-60 (lorry speed). If I do 70 I get about 30mpg, 80 sees about 32mpg.

Sandy told me if driven the same as a standard 6 it would return as goos, if not better mpg.

________________________________________

205 GTI
Xsara HDI
Posted 17th Jan 2012 at 10:57
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #11
Thank you for that, this seems to be what i was hoping for.

Who is sandy? Who mapped your car and do you have cams as well?
Posted 17th Jan 2012 at 11:06
bennn

Seasoned Pro

Location: Shrewsbury

Registered: 05 Sep 2008

Posts: 2,705

Status: Offline

Post #12
Steady motorway run should see you well above 35mpg in a standard one.

________________________________________

Cherry Red 306 HDI
Championship White Integra DC5 Type R
Posted 17th Jan 2012 at 11:14
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #13
Sandy Brown is a race engine builder and mapper Smile

He mapped Dan's standard gti6 engine on Jenvey throttle bodies.

note, Dan is not a smooth driver and is very heavy with his right foot, I got more mpg from the same car driving just as quick point to point LOL Ninja

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 17th Jan 2012 at 11:23
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #14
welshpug! wrote:

note, Dan is not a smooth driver and is very heavy with his right foot, I got more mpg from the same car driving just as quick point to point LOL Ninja


Yes but does Dan weigh 17kg like you?LOL

________________________________________

Nothing to see here
Posted 17th Jan 2012 at 11:35
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #15
Where is Sandy Brown located? Does he live map or RR?
Posted 17th Jan 2012 at 11:35
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #16
I know £300 is £300, but it might be worth it just to know its working right. Got to wonder why it seems like it is overfuelling - if its a problem then you don't want it to get worse and 10mpg isn't to be sniffed at. Trust me I know all about that LOL

________________________________________

Nothing to see here
Posted 17th Jan 2012 at 11:39
dcc

Senior User

Location: Wales

Registered: 24 Feb 2009

Posts: 502

Status: Offline

Post #17
Plymouth area, he does both.

p.s. My driving style is epic.

________________________________________

205 GTI
Xsara HDI
Posted 17th Jan 2012 at 11:39
dcc

Senior User

Location: Wales

Registered: 24 Feb 2009

Posts: 502

Status: Offline

Post #18
and i now have a new clutch Big grin

________________________________________

205 GTI
Xsara HDI
Posted 17th Jan 2012 at 11:40
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #19
Sandy is in Cornwall somewhere - don't have his details to hand..

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Nothing to see here
Posted 17th Jan 2012 at 11:40
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #20
Wow, thats quite a way further.

Do people have good expericances with northampton motorsport?

I know Power Engineering are closer but i'd prefer someone with experiance with these engines.

Its looking more like i will be getting it checked now. Its a pain but one of those things.
Posted 17th Jan 2012 at 11:52
dcc

Senior User

Location: Wales

Registered: 24 Feb 2009

Posts: 502

Status: Offline

Post #21
Well my mapping session cost in the region of £400, after fuel and expenses (drink and biscuits for Meirion). After not been anywhere else, I would honest not go anywhere else now.

________________________________________

205 GTI
Xsara HDI
Posted 17th Jan 2012 at 11:54
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,838

Status: Offline

Post #22
Dan went from near bigend to Saltash to have his mapped, well worth it Smile

dan weighs a lot more than me, but he was in the car at the time too Razz

try torque of the devil in uxbridge, I think they're down the road from power engineering.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 17th Jan 2012 at 11:54
atterz

Seasoned Pro

Location: Stafford

Registered: 18 Feb 2011

Posts: 1,134

Status: Offline

Post #23
With regards to 6/Rallye MPG, i see around 400+ to a tank which is about 35mpg? Thats obviously steady but not complete miss daisy driving.

________________________________________

owain wrote:
A GTI-6 with a good dashboard and the seats down can outsprint an E46 M3 in July.
Posted 17th Jan 2012 at 12:23
Justin R

Newbie

Location: Basingstoke

Registered: 17 Jan 2012

Posts: 21

Status: Offline

Post #24
I have found something that says TOTD is no longer?
Posted 17th Jan 2012 at 12:30
miles

Seasoned Pro

Location: Ringwood

Registered: 28 Dec 2002

Posts: 3,433

Status: Offline

Post #25
I look after a car mind used rarely that was mapped at North. Motorsport and it's pretty poor to say the least, it was done around 8 years ago but re-mapped 4 ish years ago then never used since as nothing really improved, That never made huge power considering the spec and this has been on other rollers to double check the figures.

I've used allot of mappers and had car's from various people and with Omex I've yet to find anyone better than K Tech Racing in Verwood as he's a ex Omex man has has developed a ECU for the Multiplex Renaults along with keeping all the dash lights off, so he knows the systems inside and out.

174bhp with that spec is very poor (Cam Spec depending), But looking at the Wiring (assuming it was the car above) of a mix match of std ECU plugs and Omex loom is never a good idea.

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Posted 17th Jan 2012 at 20:40

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