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Author Subject: Gti5 turbo project
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #1
Hi, iv been a member for some time now and have never done an intro so here goes!
My name is Ollie, I'm 24 years old.
My first pug was a n reg phase 1 sigma blue s16 when I was 17, needless to say it was a big step up from my 1.4 astra and as I didn't have alot of experience with peugtots I got bit in the arse in the first hour of driving it, lift off over steer into a lamp post!
Not a good start!
I then went out and brought the best colour 306 which was/is a grey phase 1 s16!
This is the car I am carrying out the turbo conversion on!
After a year of owning it I had the following mods done:
.gti6 engine
.longmans head
.270h cams
.maniflow manifold and de-cat
And many other mods that are listed in my profile.

I will add more details with pics but my wireless is playing up today so I'm using the phone.

Over the 5 years iv owned the car it has been changed to a full on phase 3.
Phase 3 front end
Phase 3 rear
Phase 3 full looms
Phase 3 dash....

Many ppl will ask why but I never intended on going this far with it and it hasn't cost me a great deal doin so as I can get bits free or very cheap!

Will make this thread better when the comp is working!
Iv managed to add photos in the engine thread today but now the Internet is not playing ball!

Anyone want to come and sort my wireless!
.
Posted 17th Jan 2011 at 02:55
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #2
Spec will be:
Longmans head
270 cams
Wossner pistons
Pec rods
Custom exhaust mani
Cosworth turbo
Custom inlet
Comp bearings
Comp head gasket
Atb diff
Hdi gearbox
044 fuel pump
Siemens 55lb injectors
Dta s40
Gizzmo ms Ibc boost controller
4 bar fuel pressure reg
Magnetti Map sensor

Will add pics and more info soon
Posted 17th Jan 2011 at 03:52
rallyeash

Seasoned Pro

Location: Devizes

Registered: 11 Dec 2006

Posts: 4,424

Status: Offline

Post #3
all sounds good, what power you aiming for, 350-400?.

look forward to some good pics Smile

________________________________________

230 hp 2.1 16v XU 205 rallye on jenveysHyper Project thread here
309 3dr K20 Type R
Posted 17th Jan 2011 at 03:55
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #4
Only want 300 to start with but will increase the boost when I get used to driving the beast!
Posted 17th Jan 2011 at 03:56
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #5
With out going to 2.1-2.2 I'm aiming to get more torque than hp, aiming for 300hp 330 lbs ft with 1 bar boost but not to bothered if it doesn't work out that way!
Posted 17th Jan 2011 at 04:01
SteviePut

Seasoned Pro

Location: Down south

Registered: 20 Oct 2005

Posts: 13,637

Status: Offline

Post #6
I've no idea of the spec of the cams you're planning on using, but are they suitable for a turbo application? Too much over lap and the boost will f*ck off down the exhaust won't it?

________________________________________

My old man wrote me a letter from prison once. It said if you don't want to end up in here, stay away from crime, women and drugs. Trouble is, that don't leave you much else to do, does it?
Posted 17th Jan 2011 at 04:05
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #7
All be taken into account and have talked to piper and the 270s are near on same spec as escort cosworth cams :-) only using them as iv already got them from my old engine
Posted 17th Jan 2011 at 04:07
SteviePut

Seasoned Pro

Location: Down south

Registered: 20 Oct 2005

Posts: 13,637

Status: Offline

Post #8
pugheaven wrote:
All be taken into account and have talked to piper and the 270s are near on same spec as escort cosworth cams :-) only using them as iv already got them from my old engine


I'll be quiet thenLOL

Dibs on a pax ride once it's done Smile LOL

________________________________________

My old man wrote me a letter from prison once. It said if you don't want to end up in here, stay away from crime, women and drugs. Trouble is, that don't leave you much else to do, does it?
Posted 17th Jan 2011 at 04:12
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #9
Will be a while yet, got all the above but I go to afghan for 4 months every year and just brought a house, wish I hadn't as it would have been finished by march :-( can't say no to the money tho
Posted 17th Jan 2011 at 04:17
j1mmy

Regular

Location: telford

Registered: 17 Oct 2010

Posts: 294

Status: Offline

Post #10
sounds good will be watchin this with interest! I deciding wether i'm going turbo or supercharger route eventually

________________________________________

now a very happy an proud GTi6 owner! Big grin

TEAM: Blaze phase 2
TEAM: Off the road for now Sad

Nimrods going up 4 sale will be available in the next week! Pm if interested.
Posted 17th Jan 2011 at 21:59
davewagon

Senior User

Location: Corby / Northampton

Registered: 21 Feb 2007

Posts: 889

Status: Offline

Post #11
Could you explain to me the thinking behind using a 5 speed box, and why one from a HDI, rather than say an xsi? (I'm guessing better suited to handling torque)

Dave

________________________________________

Team: Moonstone GTI-6
Team: Working air-con™

ian7675 wrote:
Remember....a 6 isn't just a car, it's a part time job Thumbs up
Posted 18th Jan 2011 at 18:32
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #12
Yep plus lower rev range at higher speeds, oh and a top end speed of 180 lol
Posted 18th Jan 2011 at 22:17
davewagon

Senior User

Location: Corby / Northampton

Registered: 21 Feb 2007

Posts: 889

Status: Offline

Post #13
Is the "lower revs at higher speeds" exclusive to a diesel box, or would an xsi still be doing lower revs than a '6 at speed?

So why aren'twe all swapping to these stronger hdi boxes with a higher top end? - Does acceleration suffer? (Sorry, i have no idea about this sort of thing!)

... and finally, wouldn't you want to keep revs higher, to stop you from falling out of boost, or am I way off the mark?

Dave

________________________________________

Team: Moonstone GTI-6
Team: Working air-con™

ian7675 wrote:
Remember....a 6 isn't just a car, it's a part time job Thumbs up
Posted 19th Jan 2011 at 00:54
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #14
In my mates gti6 turbo 205 he can be doing 80mph at around 2.5k rpm with the hdi box where as doing 80mph with a xsi,s16,vts box iirc will be around 4.5rpm!
If u used a Hdi box on a standard engine acceleration would be slower, top end wise even with the turbo I would think it would take ages to get to that speed!
It all depends on what turbo is being used, depending on when ur at max boost, no point revving the tits off if the boost has already tailed off!
Not 100% sure but have s few different be3 gearboxes to play around with! Works well in my mates car tho!
Not sure what box matt at pug1off is using!
Posted 19th Jan 2011 at 01:14
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #15
The diesel gearbox is not any stronger as far as I'm aware!
The boost from the turbo will make the engine rev up quicker which inturn will go threw the gears quicker so my thinking is by using the Hdi box gear changes will be less frequent?
Don't know too much about the gearing difference to tell the truth but will be looking into that once the engine is built.
Posted 19th Jan 2011 at 01:58
davewagon

Senior User

Location: Corby / Northampton

Registered: 21 Feb 2007

Posts: 889

Status: Offline

Post #16
Sounds very interesting, I've always just assumed I guess that the 6 speed was the kiddie to go for?

Good luck with it!!

________________________________________

Team: Moonstone GTI-6
Team: Working air-con™

ian7675 wrote:
Remember....a 6 isn't just a car, it's a part time job Thumbs up
Posted 19th Jan 2011 at 02:29
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #17
By having wider ratios and a longer time in gear you use the wide band of mid range torque a turbo engine generally gives you to shove the car along.

Overtaking at 40mph in the volvo I leave it in 3rd and not long later i'm doing 100 in the same gear.

________________________________________

Nothing to see here
Posted 19th Jan 2011 at 02:43
davewagon

Senior User

Location: Corby / Northampton

Registered: 21 Feb 2007

Posts: 889

Status: Offline

Post #18
Adam,

So am I right in saying that you basically have the same overall range to use: a 5 speed box will allow you to climb up the revs slightly higher before needing to change gear, whereas the 6 speed will need to change beforehand as it has shorter ratios

(I'm imagining 2 x metre rules -[bear with me] one split into 5 segments the other into 6 - both have a 100cm total, but the 6 speed has shorter shifts than the 5, having to change up quicker, and possibly change down at higher speeds so as not to labour the engine under acceleration??)


Is that right, or is that crap?

If that's the case, what is the advantage of the 6 speed (I'm guessing the ratios aren't all of equal legnth and there is some optimisation in there somewhere)

Thanks,
Dave

________________________________________

Team: Moonstone GTI-6
Team: Working air-con™

ian7675 wrote:
Remember....a 6 isn't just a car, it's a part time job Thumbs up
Posted 19th Jan 2011 at 03:08
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #19
Look at this, about halfway down:

Wiki Smile

________________________________________

Nothing to see here
Posted 19th Jan 2011 at 03:15
davewagon

Senior User

Location: Corby / Northampton

Registered: 21 Feb 2007

Posts: 889

Status: Offline

Post #20
Thanks, helps a lot

________________________________________

Team: Moonstone GTI-6
Team: Working air-con™

ian7675 wrote:
Remember....a 6 isn't just a car, it's a part time job Thumbs up
Posted 19th Jan 2011 at 03:49
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #21
The turbo has an AR 42 inlet and AR 48 outlet, the turbo was sent to turbo technics for a rebuild and checked over, the wastegate was also opened up to group a spec, they spun the turbo up to 170k rpm and printed a graph to showe results!
Posted 19th Jan 2011 at 13:01
cjm_harris

Seasoned Pro

Location: Parts for Sale section

Registered: 04 Dec 2007

Posts: 7,442

Status: Offline

Post #22
This is going to be a thread I will be keeping an eye on Yes

Always wanted a turbo'd 6, but after thinking of the money I would spend doing it, will probably buy an evo Laugh

Best of luck with it mate, look forward to updates/pictures Hyper

________________________________________

Chris
1999 China Gti6 Supercharged Devil [Fun car] >>Project Thread<<
2000 Bianca 306 Diesel [Work runabout]
Posted 19th Jan 2011 at 14:46
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #23
At the price I'm paying for things ATM it should work out cheaper than doin a high boost sc build and that's including a proper ecu!
Posted 19th Jan 2011 at 15:02
zxturbo400

Regular

Location: rugeley

Registered: 21 Dec 2010

Posts: 104

Status: Offline

Post #24
i priced it up for a xu10 turbo build and would be £4.5k that was for dp turbo kit excluding their gt28, my own gt2871rs, Emerald ecu with loom and mapping, injectors, dp engineering decomp plate, clutch, and other wee bits
Posted 23rd Jan 2011 at 15:59
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #25
step by step pics of what iv done to the car.
Some mods might not be to others tastes, the bodykit front bumper wasnt on for long Whistle













Posted 24th Jan 2011 at 00:35

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