Okay just to clear it up now I do not have a rp guage and KNOW i need one. BUT, on another note, this thing is amazing! I run my truck on sw7 with the rp set to 1 on smarty. Usually I can only make 55 to 59 lbs of boost out of my setup, but with the mp8 even on 25% or so I can hit up to 65+. Now I don't know if this is good or not , but it is an example of the difference of top end I am gaining! oh and with it turned up to 100% its budgint the 70 lb mark or passed it!

 

carefull grasshopper, no need to run @ 100% your injectors will hate you.

 

I hope you have real 2um filtration to run at 100%

 

I bet your drive pressure if way up there.

 

Quick burst on 100% isn't as bad as everyone says. Just don't drive around with it on 100% all the time. As long as you run a good 2micron filter and drain ur water seperator at every fill up you should be fine. Post up some videos of your truck running. I'm curious how that stocker/S400 do.

 

that is alot of boost, do you have head o ringed? I was told studs were only good to 60-65 lbs

 

what is an MP8?

 

I only run the mp8 on 100% for a few seconds, most of the time it is on 50% or less! I will try to post some of my boost guage if I can figure it out!

 

Your twins are out of their map much past 65psi. so 70psi is probably giving you a lot of hot air and not much power. DP is also probably way up there. You can get a little of that (cooler air) back by getting an aftermarket CAC now. But that doesn't fix the DP.

I hit 80psi regularly with standard studs with no problem. That has a lot to do with controlling the flow... properly matched cam, turbo set up and etc.

Everyone told you mp-8 was a good thing, didn't they? But don't run it all the time.

Now what you do is get your rp gauge, tune the mp-8 (by trial and error on the track-- be safe) to desired max pressure (say 25k for sake of argument) mark the face plate accordingly and then you know right where to turn it when you want it and don't have to think about it. Rarely is 100% the best setting.

 

What is a CAC?

 

Charge Air Cooler AKA intercooler.

 

Okay. Thanks for the input guys! I'll be getting an RPguage. Is there one specific you recommend?

 

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