Race Engine Forum UK

Hi to everyone.
I am so glad to introduce my project. Finally I did it.
This is actually Fiat Tipo Sedicivalvole turbo conversion.
It runs with Fiat Coupe 16VT ECU and chip by Ruben Aparici.
The expected power is 320 hp and max. boost 1,55 bar

Here is a little movie:
http://videos.streetfire.net/video/7abd ... 23905a.htm

Nice work, Any pictures of the car?

SteveNZ wrote:Nice work, Any pictures of the car?

Yes, I add a little movie of the beginning of the post - the link.

...

Iliyan, hi

great project, nicely presented too - well done indeed!

GC

Hi

How have you mounted the wastegate? Is it welded straight onto the original wastegate hole?

Thank You for the nice words, gents.

The wastegate is welded to the turbo exhaust flange via short S pipe, just to suit the place.
Here is detailed pictures of the flanges and the hole in the turbo housing.
For the future time I will go for tubular exhaust collector and the wastegate pipe will come out directly from it, just right before it's T3 flange.

Regards
Iliyan

Hi CIC , I need you help , I want to put a turbo at my sedici too , I like to know what exactly parts have you used in your project !

If you remenber the web sites it‚´s going to be great!

thanks

Hi bob, everything I used in my car is showed in the pictures, nothing hidden there.

Little update :)

Some movies

http://videos.streetfire.net/video/Turb ... 159897.htm

http://videos.streetfire.net/video/turb ... 159991.htm

ICI,

Excellent project, I do like it a lot.

How satisfied are you with the spool-up time? I expect it to be fine with GT2860RS. I assume you are not using antilag?

Do you still use Pierburg valve for regulating boost? Did you have to change integral boost valve duty cycle correction terms in the map to suit quicker response times of GT2860RS in comparison to OEM turbocharger? If not, are you experiencing boost overshots?

A friend of mine and I did a similar conversion a couple of years ago. However, we used T3 in Super 60 trim, which generated boost quite high in the RPM range. This was partly sorted out by exhaust cam timing and antilag. We used stock Tipo 2.0 16v 5 door cams, but later resorted to Thema turbo exhaust cam, which helped quite a bit.

Which cams do you use and how are they timed (degrees between peak lift and TDC)?

If possible, I would highly appreciate if you could post a log of your measured boost level vs. RPM in 4th or 5th gear.

Keep up the good work,
Nikola

Hi Nikola

I know yours turbo Tipo project long time ago, still when it was presented in http://www.hollosites. It was kind of a guiding line for me :)If you mentioned the red one Cosworth in the video - it is running with your RP lab ECU at 1bar at this moment, waiting mapping for 2bar.

Now on the questions.
The car is amazingly responsive with this turbo.
No antilag system, over 3000rpm every blip on the throttle make difference.
Yes, it is with standard Pierburg boost solenoid valve, but is using external wastegate with 0,8bar spring.
About duty cycle, I can't see is there is any difference with the stock bin, because I did't have proper .xdf with this table for TunerPro.The boost spikes not more than 1,2 bar.
But there is a problem with clutch slipping on 4th and 5th gear, which reflects on the boost rise.

Here is all about my cams and timing :
http://guy-croft.com/viewtopic.php?t=634

I will post logs, if I could make them these days.
I am confused a bit because I bought Innovate RPM converter to collect 5 sensor signals for logging, but it seems probably it can work only connected with Innovate LM-1, which transfers data to laptop.I was told that RPM converter can be connected via serial stereo cable with my Innovate LC-1 wide band, and from there to laptop for logging.I have to try this.
At this moment I am watching only AFR.

Regards
Iliyan

Hello Iliyan,

Thanks for the link on cams timing, sorry that I missed it initially.

Unfortunately, I haven't had any experiences with Innovate products, so I can't really assist you on how to make use of the RPM converter with LC-1. I do the logging in "traditional way", through the ECU connected to laptop.

As for clutch slip problem that you mentioned, we had the same with Tipo 16v OEM 215mm clutch. It proved more cost effective to go for OEM 230mm item (including Dedra Turbo cable actuated gearbox) than uprated 215mm clutch. This solved the slipping issue completely.

Does your modified chip have duty cycle table on the same location as OEM? Maybe I am wrong, but I thought there was a freeware XDF for OEM coupe 16vt chip? It was of moderate quality, but at least such basic things like boost duty cycle table were interpreted correctly. I was actually asking about duty cycle integral correction tables, as those are a bit tricky to adjust (many tuners don't have idea that they exist, nevertheless they are playing a key role in reaching boost setpoint quickly and avoiding overshots).

Please send my regards to Martin!

Ciao,
Nikola
P.S. Watch out for cracks that may develop on the exhaust header.

NickRP wrote: I do the logging in "traditional way", through the ECU connected to laptop.

Hi NIkola, would you tell me is it possible to do logging with the stock Fiat Coupe ECU and how ?

NickRP wrote:As for clutch slip problem that you mentioned, we had the same with Tipo 16v OEM 215mm clutch. It proved more cost effective to go for OEM 230mm item (including Dedra Turbo cable actuated gearbox) than uprated 215mm clutch. This solved the slipping issue completely.

In my case the problem is very unpleasant, because I use ceramic clutch with 30% uprated pressure plate 228mm push type.You can see it on the pictures above.
I hope this is due to still incomplete bed in.

NickRP wrote:Does your modified chip have duty cycle table on the same location as OEM? Maybe I am wrong, but I thought there was a freeware XDF for OEM coupe 16vt chip? It was of moderate quality, but at least such basic things like boost duty cycle table were interpreted correctly. I was actually asking about duty cycle integral correction tables, as those are a bit tricky to adjust (many tuners don't have idea that they exist, nevertheless they are playing a key role in reaching boost setpoint quickly and avoiding overshots).

Yes, you are right.There is newer version of .xdf, which I did't use before.
This is what it shows.
I also add the boost level table to see.

Ciao,
Iliyan