can you run with no dump valve what so ever so you get lots of wastgate chatter ?

 

depending on turbo, i have run without a dump valve for over a year with lots of noise.

 

I run without dump valve with a FMIC. It gives off the best sound of all, lovely chatter noise. Far far better than any dump valve.
Some say it can damage the turbo and with old VF series turbos I would agree, but the TD series turbos are fine.

 

I've got an Sti v3/4 recirc on my VF35 and front mount. Would crap myself running without it as I dont think it would do my VF much good like Matty says.

 

well i'm running a td05 18g think i mite just block it and g for a run turbo's being re-coned this weekend anyway lol

 

Mitsubishi turbo's are tough little units, and you may just get away with it on the TD05 without snapping off fins, however it WILL cause premature wear to the thrust bearing as the shock loads place all the stress on it.

Generally speaking, larger frame turbo's cope better with no dump valve as they rotate at much lower speeds so the shock loads aren't such a worry. I wouldn't advise it with smaller VF series or TD04's so much though.

 

I have a fmic with a hks ssqv2 fitted and under low boost i get compressor surge and a lovely chatter almost sounds like the car is laughing at me but at higher boost level dumps as should kind of the best of both worlds. thats with td05 and touch would turbo has been fine for 3 years now

 

took the dump valve off just then as had to pop out any way and no real chatter and was like a stall between gear's so put it back on for drive home



thats with the dump valve and boost turned down to 1.1bar

 

i was short shifting dose rev to 8000rpm but got the wrong dial kit still looking for one that red's at 8k if anyone know's where i can get one

 

Sounds about right Need an induction kit for more noise really and a FMIC for the cherry on top

 

Have you got a big induction kit ?
Did you block the dump valve properly ?

 

i've got a Subaru impreza HKS super flow Induction kit and i just removed the and blocked off the control pipe so it didnt dump when i come off the loud peddle

 

Try taking the dump valve off, and properly blocking it off, as the spring may be passing still on it.

 

Will bo before the school run let yoy know when i get back

 

would a TD05 16g be okay with out running a DV? also with a FMIC. . . Old imperza with tdo4 had no dump valve (Bottom end went not long after) and sounded the mut's nut's

 

Any turbo without a DV will suffer from accelerated wear, so be aware of this, but a Td05 is a pretty tough turbo so it stands as good a chance as any.

Disclaimer - Please not that i'm not in any way guaranteeing that it would be fine. It could fail the next day, it could last for thousands of miles.

 

It's compressor stall, not wastegate chatter.

 

Yep , and not good for any turbo! It's a sudden flow reversal, blow on a fan and you'll see what I mean.

 

dump valve is back on and staying could really feel the stall between gears didnt like it i do get alot of chatter between the gears

 

Iv got a md321t going on soon can u buy a adapter to put standard dv on with fmic???

 

Harvey sells these.

 

You need it mapped with it deleted to make the most of it

 

well not mapping again till i get a simtek only got a piggy back board right now

 

Cheers mate