low boost on R700?

smokinbillygoat

smokinbillygoat

Punishin For Pleasure
Joined
Jul 23, 2006
Messages
244
I just put the R700 twins from bd on my daily driver and I cant see no more then 50 psi. They told me i should be seeing 70 to 75. I know i dont need near that much but i would like to get them to 60 psi where there suppost to make there best power. I have my wastegate set all the way up and 50 psi is all i can get. My mods are listed in my sig....any ideas?
 
ive got my boost guage hooked up to the back of the intake manifold so I dont really have a way to tell what it alone is making?
 
id throw a gauge on the primary (even if its just temporary) to see what its making.

whats the primary in that set s400 or k31?
 
smokinbillygoat said:
I just put the R700 twins from bd on my daily driver and I cant see no more then 50 psi. They told me i should be seeing 70 to 75. I know i dont need near that much but i would like to get them to 60 psi where there suppost to make there best power. I have my wastegate set all the way up and 50 psi is all i can get. My mods are listed in my sig....any ideas?
Click to expand...

I think 70-75 is ambitious. I see 60-63 with there waste gate set from BD.

I would say a boost leak or your guage.
 
well one of BD's engineers told me thats what I should be seeing. I dont need near that much but i would like to see 60
 
id say your right were you should be maybe a little low, 60-65 is where theyd be most efficent, and w/ an aftermarket intercooler, less than that
 
well im gettin the same boost as I was with just the tow set up I had before? and I got an aftermarket intercooler. But they are 100 hp lightning injectors from scheid
 
the s400 with a 72mm (im guessing) will move a ton more air at the same pressure than the s465 will
 
You must log in or register to reply here.
Back
Top