ihi rhb5 spool....
 

I'm wondering if i remove the wastegate how much psi a RHB5 from a mazda mx-6 can spool?

Re:ihi rhb5 spool....
 

first of all...dont do that. it will probably hit a decent amount of boost, although it wont be nearly efficient

Re:ihi rhb5 spool....
 

then if i put a maual boost controler... what would be the hight boost of this small turbo?

Re:ihi rhb5 spool....
 

on what car?...im sure on a honda it will spike really high but only hold like 10 psi or so...but i have no idea

Re:ihi rhb5 spool....
 

they are suppose to be good for up to like 15psi, but ---- it.

get something bigger if you want more power.

nathan

Re:ihi rhb5 spool....
 

Its my fisrt HMT kit so first i will use stock wastegate 7.5~8.5 psi then i will increase boost with a boost controller... at this point, if i need more power i will buy a t3/t4

But for the moment i just want to know how much psi thi turbo will hold. So it seems to be holding 10psi...its a begining! :P

Re:ihi rhb5 spool....
 

yeah...

what kind of hp are you putting down with that turbo?

and what motor/setup?

Re:ihi rhb5 spool....
 

its not installed yet but setup will be finish within a month or two...
i would say i want to put at least 165whp with stock wastegate (8 psi running vafc) maybe more when my ecu will be chipped on uberdata

Re:ihi rhb5 spool....
 

The stock wastegate will get you 7psi with good exhaust, with an MBC I wouldn't try to hold 10psi since the spikes you will get can get up to 12 or so pounds. I don't know about you but on a stock engine (as I am assuming) I wouldn't wanna take that chance. Use your MBC to hold at 8 with spikes around 10.

Re:ihi rhb5 spool....
 

i thought the mbc was supposed to help stop boost spikes?