turbine vgt on Gpunto 1.3 70cv

[igor]

hi everyone, I wanted to ask you an opinion on the fact of mounting a vgt on a vehicle born with turbine traditional
the vgt I wanted to run it through the same pressure generated from the nut of the compression and preload the polmoncino of the valve to make it work only after a certain pressure in order to simulate a sort of electronic control
with this change, st? trying to eliminate that vacuum at low revs of the 70cv not ? the present about 90
let me know your opinion and if possible, we try to anticipate and resolve any problems together
thanks to all in advance

[munro]

I don't really understand how you want to manage the vgt...
but usually you use a normal wastegate control pressure of those who work on turbochargers traditional to manage the geometry and consequently the press turbo.....I would recommend the WG of excellent invoice, type the forge...? there are cons to the use of this wg is one of the most annoying and at high engine speeds and especially at the time of release from these there are not enough press in the circuit to open the vgt enough creer? a strong counter pressure at the discharge of a potentially dangerous one, especially for the exhaust valves....the second drawback then ? in the case of the rupture of a pipe of the turbocharger system as there is no pressure to drive the WG this terr? always lealette closed, the turbo resulting in destructive overspeed of the turbine even if it is not providing pressure......
this ? one of the reasons that have led the manufacturers to adopt the wg that work in the "depression" by using the vacuum generated by the vacuum pump brake booster....

[igor]

I intended to use the polmoncino of the wg the original and mount it in place of the polmoncino the vgt mounted on the 90hp working with depression, in order to have maximum pressure at low rpm, and after various tests I've seen that I can move the polmoncino gi? at 1.00 bar pressure and begin to bring down the force of the wgt, in this way I hope to be able to keep the pressure constant even with the increase in the volume of the exhaust gas
for the problem of leakage of pressure from the hoses or the other, I thought to strengthen the entire system with a spending quite minimal by using high-pressure pipes similar to those used in hydraulic systems.
I wanted to thank you munro for your helpfulness?, and I wanted to tell you that I consider you very much for your expertise and for the fact that you understand that you will want, and use your brain before writing, thanks again

[munro]

if I understand well, you want to use the wg of the turbine to a fixed 1.3 mjt 70cv on a vgt turbine of the 90hp..right??
if ? cos? you can? do safely.....the only drawback that you may have installing a wg golds of the 70cv on the vgt of the 90hp and that you will not have a turbo pressure linear..but you may have low gears a press usually more low than the required one, and with the higher gears a press that tends to rise beyond what is wanted...
for this you consigliavo to mount a wg worthy to be called so......
if you want another board mounts a nice gauge to keep an eye on the press turbo
and if you want to make big things a thermocouple egt would be the top.....

[igor]

it is exact

the fact ? that machine ? a friend and colleague, and I asked for a hand to work better, the machine to low, and even with a good map the problem remains then I thought of a vgt but it would still be low with the costs, you know c'? crisis
can you tell me if where can I find/order a good wg

[munro]

for the wg ****** and your friend.....looking for stuff quality type the forge motorsport....and don't go to cineserie....

[abberello]

Then ? really impossible to fill with a remapping of the vacuum under 2 thousand rounds of 70cv?

[munro]

but....I say that with a pretty map resolves.....
a p? time and press the rail down "aggressivetti" with lim torque calibrated right and see if you don't wake up from hibernation in under 2000 rpm....

[marcusmagic]

quoto munro.. with a beautiful mappetta-made work of art! you can resolve easily ;)..but you should be able to do well because you can put you at risk of the components of the engine if you overdo it without holding it in the account..

[Xtreme0303]

the original and the original, however, to the contrary of what should be the 75 hp goes best of 90

[leandro89]

with a map done well not only eliminate the annoying gaps below the 2000giri, consumption is much less, and avoid making changes strange

[Xtreme0303]

of course, from personal experience do map only from those you trust....

[marcusmagic]

? also I have noticed that the 75hp should be better than the 90hp. I already know why.. let's see if someone of you there ? arrived....???

[Xtreme0303]

mapping sucks, I don't see the other, I have seen both of the turbines, the 90hp ? practically identical only variable geometry

[marcusmagic]

the 75hp and is practically equal to the 90hp only change the map!! the rest is all the same :)

[Xtreme0303]

no no no, absolutely not, change the turbine, the flute of injection, injection pump, gearbox, media, semi-axis, pistons, compression ratio, ecu and wiring.

[marcusmagic]

anyways the gear change because it has 6 gears, the turbine is not, it seems to me that is very different from that, the pump probably.the wiring harness ? under intended...

[marcusmagic]

anyway, I repeat the 75hp mapped well be much better than the 90hp...

[Xtreme0303]

everything I have written ? a given, not for the presumption, but for study and comparison =) mapped and mapped the 90hp goes much more?

[mariodarkblue]

Hello...that I know of, the 75hp has the injectors the same as the 90...change the pump and flute...
Anyway, I led the turbine gt2256v with the actuator of the 1.3 mjet...the wastegate just...I was 1.5 constant.

[Xtreme0303]

and don't you emptied the turbine?

[msport (exil77grande)]

the 75hp has fixed geometry the 90hp variable.

[igor]

changes made...
it goes bad in fact it was an overnight fixed that annoying blank below 2000, the only problem ? that with the long gears in acceleration over 3000 rpm, I salt the press in addition to 1.3 bar and I would like fixed, now we have installed a new polmoncino, but we still need to calibrate it...
in conclusion, I can say that this solution ? powerful and the machine ? become really enjoyable to drive
I would recommend it to anyone who wants a better yield of the engine at low revs and for those who want to have a response from the pi? rapid acceleration

[Danny]

But then you have mounted the turbine 90, i.e. the BV35 with the WG of 75, i.e. KP35?

I would like to take it further....A beautiful 1749 would be the top, but would surely lag down...With theoretically good results? to the high...

[mariodarkblue]

*extreme83...let's not go into offtopic...in the other section I have explained the mod and the results achieved...

*danny...I have seen mounted to a gt1749 under the ypsilon 1.3 mjet 70cv...2.5 bar has rolled 136cv...

*igor if the high tends to rise over the constant 1.3 you will have to loosen the p? the wg...

[Danny]

I seem to be a few horses to those pressures....
Mario, where are you?

[mariodarkblue]

*Danny...I am from Naples...performance, I believe, are scarce...xk? the map....ehm...makes you vomit...

[igor]

I tried to loosen the wg, but in that case I miss the quickness to low that she wanted to the customer
as soon as I can calibrate the wg new, I know

[msport (exil77grande)]

on the 1.3mjet the best compromise power-lag and the turbine of the 1.6jtdm.

[Danny]

But the code what?? In 1.6 not ? managed electronically variable geometry?