I am going to let the 16VT be RR'd this monday.
I own the 16VT for 3 months now, and a large service has been done. I will let the car be RR'd at the standard 0.8 bar boost. It won't overboost due to the Blitz SBC-R which keeps the boost steady. I do need to get the gain/ratio set up right before the RR this weekend. If anyone has any tips considering the values of these two please let me know!

I will post up the graph this monday afternoon, i hope that noone of the horses have ran away!

what is the rest of your setup mate any maps or mods?

hi mate,

its all standard exept for the powerflow 2,5" + race cat and balance belt removed+bmc air filter.

i wouldnt think it would make much power maybe around 205bhp depending on the condition of the car

Thats what i am curious for. A intercooler + dink chip is on the list too, as well is the fuel pump wiring mod. I hope to hit around 240-250 by then. We will see monday what the results are.

with a dink stage 1 you will make 240bhp with a intercooler and wiring mod and a straight induction and a decat pipe and maybe have your injectors cleaned.

will be nice to see your results

Alright, the results are here:

170 bhp/244nm

I am dissapointed with the results, i was hoping for at least the stock power. Car has done 80k miles.

The guy at the RR centre checked if there was a leak, but couldn't find anything. This was on 0.8 bar with the Blitz set up on 16/40. They thought it might be the MAP Sensor, Intake temp sensor, lambda sensor. He also said that the car was running very, very rich! (how do i see this on the graph?)

I went straight to the Fiat Dealer and asked them to read the car on errors, but they couldnt find anything.


Graph:






Why did my horse's ran away?!

there doesn't seem to be an AFR plot on the graph, and by the looks you got down to 0.7 bar through the run, that is low boost which will account for a little of the bhp but certainly not all of it

this makes me want to test mine now my engine has done the same sort of millage but im running stage 2 i think a RR coming on

Than i wonder how the guy knows that it runs rich?

Hmm... i got no clue where to start looking for the power loss. Compression was 11.5/11.5/10.5/11.5 in bar, i do use a BMC filter with airbox mod and 2,5" powerflow exhaust system with race-cat.

The boost controller and boost gauge are connected to the dump valve hose, and not to the FPR hose (since i cant find the FPR hose). Might this give a false reading/fale control of boost? (for example: gauge+blitz say its on 0.8 bar but it actually is lower?)

In the first pic you can see lambda value (=purple curve)

I think the lambda is down to 0.7@6000 = 10.3 AFR

Hi freddan,

Is the reading of 10.3 correct then, or should it read otherwise?

cheers

(ps my blitz is connected to the Dump valve hose, and not to the FPR hose (because i cant find that hose). Could this give me a false reading? for example it reads 0.8 bar but actually runs on 0.6?)

I don't think 10.3 is good, better to be between 11.5-12 AFR.

The other question about boost hose. I have done the same and I have no problems with boost pressure

Okay then i will leave that for what it is right now.

DO you have any idea how i can have influence on my AFR ratio?

Update: Been to a Bosch Car Service Center.

They have tried to search for electronic errors by putting the car on a computer. No errors showed up!
Thing is that the car sounds fine, drives well. It's just that it uses a lot of fuel (6,5km on 1 litre) and under-performes!

Just a suggestion (a stupid one maybe), have you checked your ecu yet. Youre stock chip could have already be replaced by an aftermarket one. Which could explain why you are overfueling, if this is the case you could up the boost a bit.

just a suggestion

Hi Mate,

Well actually i was going to do that very soon.
Any tips on how to identify my chip? Whether its a original FIAT chip or aftermarket?

You could post up a pic of the chip, I'm sure someone on here can help you out. I think the standard chip should have a magneti marelli sticker on it, just like the 20vt one has a bosch sticker on it.

Standard chip will have the fiat number on a sticker

194.04 or 194.05 but put up a pic

In regards to AFR I misread the graph, I thought the .7 (wgich equals 10.3afr) was a boost line, sorry bit confusing on the graph

Made a pic but wont be able to upload until tomorow.
Altho i think that all is standard: It still had magneti marreli stickers on the screws. I opened it tho, and it had a 194.xx number if i remember correctly.

So, it's not a other chip. Can the 2,5" + race cat exhaust be negative? Need to change spark plugs too since i dont know how old they are. (If they are as old as the air filter was, at least 20.000 km/s)

No, the exhaust can't be bad unless the cat is blocked up with rubbish or there is a loose baffle etc which is unlikely.

I would suspect the amount of boost you are running.

I know you did a compression test and it came up good,

What type of dyno was it if you know, do you know anyone else that has used it was it accurate in that case?

I would be tempted to put the dink chip in and give it another go at higher boost (say 1.1bar) and perhaps on a different dyno, TBH at a low boost level I am not sure what to expect power wise,

IS there a boost graph from this run?

Exhaust shouldnt be blocked or full with rubbish. I bought it from Joe in good condition and checked it before installation.

I will put in the dink after my holiday + new spark plugs and let it be tested again at a higher boost value. See what it does then.

There is no boost graph from this run, this one paper is all i got.

thanks all for the feedback and tips! Ill keep you posted!

Check for boost leaks. Next time up the boost a little bit more, that car is begging you for more air

i am pretty sure that you lose a lot of bhp with 10.3 AFR at 0.8 bar boost, at that low boost i would prefer to see close to 12.

and do you have any idea why it rus 10.3 ? when it is on standard chip..

original injectors and so ??

Is it worth checking the lamdba sensor?

Hi Martijn,
Can you explain me why are you using an electronic boost controller while your Coupé is stock?

I think you are rich because you don't have enough boost pressure. I am not an expert in 16VT but I think that if you let the ECU manage the EBV, you will have higher boost and it will be fine.

You don't need to check your lambda sensor as it is not used during full load.

I have sent Dink a message, the writer of the chip.

He said that the car with this AFR figures is running too low on 0.8 bar boost. My car doesnt overboost because i use the blitz, so it misses that 0,2 bar on the dynorun.

what i can do is turn up boost to 0.95/1.00

Sorry mate, didnt notice you replied. I am using a EBC because i am planning to tune it in the future. Also my original boost controller does not controll the boost, it keeps rising until the engine cuts off at 1.6-ish bar. Now with having it set on 1.0 bar the car runs fine, and has a lot more bhp!

It's OK
We found the problem at the same time.

It is very surprising
By my "original boost controller" I understand your ECU, is that right?
Maybe you have a crap chip on it?