Andy's Turbo Mk2 Punto

[cas]

As a few of you already know my car is now turbocharged:

CAR SPECIFICATIONS:

- Model : 8v Go
– Engine size : 1.2
- Year : 2001
– Colour : Black

ENGINE MODIFICATIONS:

Specs so far:

-CAS Gas flowed head, with polished valves, flowed ported and matched to inlet,exhaust manifold, with standard multi angle cut
-CAS modified inlet manifold running 8x 185cc injectors
-reduced compression ratio
-K&N air filter
-NGK iridium plugs
-Magnecor leads
-CAS high flow downpipe
-All oil hoses,adaptors from Goodridge
-CAS modified exhaust manifold (apologies guys it was off a mk1 60)
-Garrett GT15 turbocharger
-Full stainless PECO system
-Full custom intercooler pipework
-Full width Aluminum alloy intercooler
-With a mix of SFS, Zena and Samco hosing
-Bailey Piston Dump Valve
-Forge Adjustable wastegate actuator
-HKS boost controller
-ERL MF2 injector controller (running marelli 3bar map sensor)
-Uprated Cerametalic Paddle Clutch

Capable of running in excess of 1Bar boost

STYLING MODIFICATIONS:

- Carbonfibre Bonnet

INTERIOR:

- None

EXTERNAL:

- None

CHASSIS:

- Tarox calipers and 280mm disks
- HGT rear calipers with Tarox disks
- Eibach coilovers with revised geometry 45mm front ,40 rear with -1.8deg camber
- Speedline Turini 16x7" rims with kumho rubber
- 6 speed box
- Powerflex Front Bushes

FUTURE MODS:

Don't know any suggestions???


This was before the wastegate actuator was changed.













Hope you like... Andy

[lowtechguy]

Welcome to the forum andy, setup looks very tidy.

Have you had the mf2 setup on the rolling road yet? Would be interested in your final output.

What boost you running daily?

[cas]

No i haven't set it up yet on the rollers will be in the next couple of months tho...

I broke (trying to untighten) the bolt that goes into the subframe of the car for the gearbox mount so been sorting that out past few weekends, -sorted now though

It runs 6psi everyday, but you can drive it ok at half throttle resulting in no boost if you want.

-Andy

[babaracus]

That is an awesome effort, nice one.

I would love to do something similar on the 1108 mpi engine, but am not technically minded enough unfortunately!

Top Job anyway.

BA

[babaracus]

6psi sounds about right re boost, i guess thats around 0.4 bar. You don't want to go mad like these people seem to with other turbo conversions, they wack the boost right up for ultimate power and melt an engine in no miles what so ever.

In the Centos the space is even smaller so more heat generated obviously than your car, and people wack up crazy boost nearing a bar and on a long hard drive the engines really struggle to take it.

The problem with adding a turbo to such a small capacity and small port engine is the heat created inside the chambers. This translates into short engine life... or reduced boost - fine for a track day special or something.

On the other hand I bet your car must fly and it should be nice and reliable too. The head work etc. should make more reliable power too.

[lowtechguy]

A stock 1242 turbo from vanakken made 90something bhp so with the head ported it would be still around the same as before I would say except for more torque (that was with 0.3bar) this was with standard compression also, running more boost with a decompression plate is not ideal.

If the pistons were changed for lower compression ones the whole thing would be better as the squish band is now messed with which is creating a poor mix and less power than it should be making.

[babaracus]

Yeah, thats what i thought. LCP have to be the better option than a decompplate.

[lowtechguy]

babaracus said:

Yeah, thats what i thought. LCP have to be the better option than a decompplate.

Andy said on another forum that his project is not considered finished so I look forward to further developments...

[cas]

I chose the decomp plate as it's a cheap option, and allowed me to setup with a fairly cheap engine, pistons are in the pipeline... aswell as new exhaust manifold, etc (so expensive lol)

[lowtechguy]

Sounds excellent!

Good luck with the piston shape and manifold design, thats something I'm glad i am not doing! lol

[babaracus]

Did you have the manifold welded to the turbo and turbo downpipe made custom? If so did you do it or did someone else sort you out?
Would love to learn the ins and outs of this conversion as would be tempted to do it to Zoe's 1108 Sei, as its basically the same base/ecu.
Also how do you go about fooling the ecu, do you use a fuel cut defender, and if so how excactly does it work on the sei/punto 8v mk 2 ecu?

Any info on how to do the convo much appreciated!

James

[cas]

just a more recent pic..



-Andy

[cas]

babaracus said:

Did you have the manifold welded to the turbo and turbo downpipe made custom? If so did you do it or did someone else sort you out?
Would love to learn the ins and outs of this conversion as would be tempted to do it to Zoe's 1108 Sei, as its basically the same base/ecu.
Also how do you go about fooling the ecu, do you use a fuel cut defender, and if so how excactly does it work on the sei/punto 8v mk 2 ecu?

Any info on how to do the convo much appreciated!

James

I machined a plate to match the turbo and then welded this to the manifold -this was threaded and studs wound in.

I made the down pipe.

fuel cut defender is not required, the standard ecu knows no different to normal... when on boost the standard map sensor produces a 5v signal similar to the car having the throttle fully open.

-Andy

[cas]

The car went on the rollers for the first time a few weeks ago..

Running 12psi, with standard fuel, original oil and plugs from initial start up

The fueling was out slightly so easily more to come. The gain is also to high on the boost controller...



118.7bhp, 143lb/ft



It made 119.0bhp on one run, but blew one of the hoses off lol

-Andy

[richie]

cas said:

just a more recent pic..



-Andy

Looks cool mate, nice and subtle.

Did you get your problems sorted with the bonnet?