1000 miles onto BMW Z4 35is

[maxbaybe]

Originally Posted by B21

Oh dear ..another DCI/BOV vandal hits the streets !-

Yes, gives me something to do on the weekend

[B21]

Originally Posted by maxbaybe

Yes, gives me something to do on the weekend

Each to their own..enjoy!-

[KennyP]

Originally Posted by B21

Each to their own..enjoy!-

BTW what is your chargepipe and diverter valves setup. With over 500hp you are surely running something better than stock arent you?
Your build thread is like 55 pages long. Im not going to go through it all to find it out. Easier to just ask.

But yeah BOV doesnt really give any performance benefits. In fact it can be the opposite. Recirculation to back in front of turbos keeps turbos somewhat spinning and this can reduce the felt lag when you get back on the gas. With a BOV you delete that and turbo spoolup is more jerky. In theory that is.
Also bov sound can be fun, but after a few weeks it will probably grow old and start to somewhat annoy you... depends on a person i guess...

[B21]

Originally Posted by KennyP

BTW what is your chargepipe and diverter valves setup. With over 500hp you are surely running something better than stock arent you?
Your build thread is like 55 pages long. Im not going to go through it all to find it out. Easier to just ask.

But yeah BOV doesnt really give any performance benefits. In fact it can be the opposite. Recirculation to back in front of turbos keeps turbos somewhat spinning and this can reduce the felt lag when you get back on the gas. With a BOV you delete that and turbo spoolup is more jerky. In theory that is.
Also bov sound can be fun, but after a few weeks it will probably grow old and start to somewhat annoy you... depends on a person i guess...

I have a pair of Forge DVs with two spring options..they go back into the VSRF inlet pipes ..these feed the TTE500s..then on via a VTT turbo outlet pipes into a Wagner Evo 3 FMIC then a VSRF charge pipe..of course I kept the stock air box with the Mr.5 auxiliary inlet to the box with the B21 inspired blended merge in the box.

Tried DCIs as part of the dyno testing..drove the 80 miles home from the dyno with them..dreadful…now sat in my bin box in the garage..

So all very quiet and smooth..lovely

[KennyP]

Originally Posted by B21

I have a pair of Forge DVs with two spring options..they go back into the VSRF inlet pipes ..these feed the TTE500s..then on via a VTT turbo outlet pipes into a Wagner Evo 3 FMIC then a VSRF charge pipe..of course I kept the stock air box with the Mr.5 auxiliary inlet to the box with the B21 inspired blended merge in the box.

Tried DCIs as part of the dyno testing..drove the 80 miles home from the dyno with them..dreadful…now sat in my bin box in the garage..

So all very quiet and smooth..lovely

ok so vrsf chargepipe for stock diverter valves and forge motorsport diverter valves to replace stock diverter valves...

For me dci isnt loud at all... but then again on my previous car, fn2 Type R , i had a HKS intake kit installed that roared like crazy when on vtec higher cam. Further than that i had Hondata remap on it that lowered vtec from 5600rpm to 3800rpm... All in it was crazy loud almost all the time...

heres an example clip of the induction noise it had
https://www.youtube.com/watch?v=5AY4N211Kcc

So compared to that DCI-s are nothing but truth is that i have gotten older since that and dont really enjoy crazy loud cars anymore....