Safe boost pressure?

[Nutternick]

What is a safe boost pressure for a 1998 v70 t5 pre me7? Going to fit an MBC and increase the pressure a bit for some more horses

[M-R-P]

Wind it up a bit at a time til you get boost-cut then wind it back a bit ;)

[Jamest5r]

16=17 psi if you have a map if not it will cut around 14psi, but never floor it till after 3.5k

[WOODY T5]

get a map on then 1.4bar on standard rods lol

[Nutternick]

Ok the boost cut is when it cuts all the power right? And the reason for not flooring it before 3500 rpm, bending rods ?

[Jamest5r]

Ok the boost cut is when it cuts all the power right? And the reason for not flooring it before 3500 rpm, bending rods ?


Yes and Yes :)

[M-R-P]

If you leave dental records in the steering wheel, turn the boost down :)

[Nutternick]

Ok starting to get the hang of this :-)

[T5frankie]

there is no boost cut on a v70r only 850's

[M-R-P]

there is no boost cut on a v70r only 850's

Hmmm...

My ME7 hit 21psi at 2200rpm on the rollers (first time - you were there mate) and didn't cut... I was blaming the plod spec ecu (and the fleabay mbc for the boost spike).

[Nutternick]

there is no boost cut on a v70r only 850's

It's not a v70r mate just a t5

[Brett855tdi]

i Think i remember Hamish saying the p1s didnt have fuel cut... my 98 C doesnt

[Nutternick]

Ok so probably around 15 psi would be safe?

[Brett855tdi]

thats what i run on a stock map i find theres not much more gain after that, AFRs drop on mine