KKK BV50 2.4mjtd max boost?

[Vic_O_O]

What is the max boost in 1.9 mjtd? Anybody have a compresor map? Thanks

[JS JTD]

Originally Posted by Vic_O_O

What is the max boost in 1.9 mjtd? Anybody have a compresor map? Thanks

yan.ko is running it close to 2 bar boost at his 1.9 JTD 8v.

[Vic_O_O]

Originally Posted by JS JTD

yan.ko is running it close to 2 bar boost at his 1.9 JTD 8v.

I know but It's reliability to the turbo?

[yan.ko]

I'm running max 2.2bar actually (the air mass went slightly down with increased outer temperature).

2.4bar (2.5@3250+) boost seems to be the max (haven't tested it much).

[Vic_O_O]

Originally Posted by yan.ko

I'm running max 2.2bar actually (the air mass went slightly down with increased outer temperature).

2.4bar (2.5@3250+) boost seems to be the max (haven't tested it much).

What do you think about 2bar 2800rpm to 5000rpm ? and 90mm3 whit 1750bar rail presure?

[yan.ko]

easy job*

[Vic_O_O]

Originally Posted by yan.ko

easy job*

230 hp aprox? The injection limit is 100mm3 ?

[yan.ko]

100mm3? Lightly above 200HP with completely tuned injection I suppose

[yan.ko]

Currently it's limit of my knowledge. But should be capable to do more. Definitely EGT sensor strongly adviced there.

[Vic_O_O]

Originally Posted by yan.ko

100mm3? Lightly above 200HP with completely tuned injection I suppose

I thought that 100mm3= 265hp with 2bar boost.

[TribesMan]

Yeah right... Maybe on a 2.4 5 cylinder...

[Vic_O_O]

Originally Posted by TribesMan

Yeah right... Maybe on a 2.4 5 cylinder...

Luis is runing 263 hp in the dyno in his 1.9 mjtd 16v with 110mm3, my car is multijet 8v not unijet.

[yan.ko]

but 8v, which restricts air flow at high revs, comparing to 16v

[TribesMan]

It doesent matter if your car is multijet... 8V head is too restrictive.
And if you compare your engine to the one yan.ko has the difference is only in fuel pump, injectors, and compression ratio is a bit lower. The main problem is diameter of inlet valves in the head, which are too small.

Probably I wouldnt be far off if I tell you that with same boost pressure and same fuel injection 16V engine can do 10-15% more power at higher revs.

[Vic_O_O]

Originally Posted by yan.ko

but 8v, which restricts air flow at high revs, comparing to 16v

Originally Posted by TribesMan

It doesent matter if your car is multijet... 8V head is too restrictive.
And if you compare your engine to the one yan.ko has the difference is only in fuel pump, injectors, and compression ratio is a bit lower. The main problem is diameter of inlet valves in the head, which are too small.

Probably I wouldnt be far off if I tell you that with same boost pressure and same fuel injection 16V engine can do 10-15% more power at higher revs.

Thanks guys, I've seen 1.9mjtd 8v runing 235hp with stock injection system but I don't know the values .

[TribesMan]

Your injection system is capable enough to go over 230bhp, there is no question about that.
Problem is lack of air. With 2bar boost, good FMIC and some kind of water injection to cool the intake charge down even further, 230bhp could be doable.

[Vic_O_O]

Originally Posted by yan.ko

Currently it's limit of my knowledge. But should be capable to do more. Definitely EGT sensor strongly adviced there.

Maybe fit a sensor EGT in EGR manifold blanke.

[Vic_O_O]

Originally Posted by TribesMan

Your injection system is capable enough to go over 230bhp, there is no question about that.
Problem is lack of air. With 2bar boost, good FMIC and some kind of water injection to cool the intake charge down even further, 230bhp could be doable.

Ok in 2-3 weeks we know it .

[yan.ko]

Originally Posted by Vic_O_O

Maybe fit a sensor EGT in EGR manifold blanke.

I think Joel wrote that either long EGT probe wasn't long enough to reach the main exhaust gas stream.

[Vic_O_O]

I found this videos: gt2256, FMIC and exhaust in 2'5"

YouTube - engineperformance gp 1.9 232cv

YouTube - engineperfirmance gp 232hp prova 2 con asr

[Vic_O_O]

Originally Posted by yan.ko

I think Joel wrote that either long EGT probe wasn't long enough to reach the main exhaust gas stream.

Sorry I don't understand you (my english is bad) You try to tell me that fit EGT sensor in exhaust manifold don't read correctly?

[yan.ko]

Yes, I mean that the EGT probe placed in manifold EGR junction was short and did not read EGT fully. But it would be better to ask Joel. May be I misunderstood it too.

[yan.ko]

Originally Posted by Vic_O_O

I found this videos: gt2256, FMIC and exhaust in 2'5"

YouTube - engineperformance gp 1.9 232cv

YouTube - engineperfirmance gp 232hp prova 2 con asr

Yes, but terribly smoked dyno chart 232BHP. Personally I would not like to drive such car.

[Vic_O_O]

Originally Posted by yan.ko

Yes, I mean that the EGT probe placed in manifold EGR junction was short and did not read EGT fully. But it would be better to ask Joel. May be I misunderstood it too.

Ok , and in downpipe?

[TribesMan]

Do it right and make a hole into the exhaust manifold, just before the turbo. You cant measure on downpipe, exhaust is much cooler after the turbo.

And I agree with yan.ko this Punto smokes way too much for my liking. It would probably be smoke-less with ~10BHP less. I prefer smoke-less...