The Official Overboosted Overlords Club
Yeah, I would say you're fine but if you want to get a compression test just so you know.
Vacuum isn't everything, but it can tell you a story right after a detonation event/odd noise and your vacuum is lower than usual- that is usually bad news bears.
Vacuum isn't everything, but it can tell you a story right after a detonation event/odd noise and your vacuum is lower than usual- that is usually bad news bears.
I am at 18-19 warm idle. That is with 1/2oz per gallon mmo premix.
premix at 1 oz/per gallon and vacuum will go up about a point.
vacuum leaks are isidious---raise the speed to 2k--no load on engine and see if the reading is differant. if it is --you probably have a leak somewhere.
OD
premix at 1 oz/per gallon and vacuum will go up about a point.
vacuum leaks are isidious---raise the speed to 2k--no load on engine and see if the reading is differant. if it is --you probably have a leak somewhere.
OD
Dongbag extrordinare
Joined: Nov 2004
Posts: 1,090
Likes: 0
From: Away from the fruits of my labor
Who rebuilt your motor?
Damn, after hearing about your guys vacuum numbers, my motor is badass! I get 21-22 inches cold, 18-19 warmed up, 17 at the lowest with both rad fans howling and the A/C on. My motor is pretty new with under 4,000 miles, tho. Premix and Sohn adapter FTW.
Kane- I wish I had your problem with running too rich. I run too lean when I go to 12psi. I've tried a few runs but every time it wants to lean out on my. Still trying to get Jeff to work with me on a tune....
Kane- I wish I had your problem with running too rich. I run too lean when I go to 12psi. I've tried a few runs but every time it wants to lean out on my. Still trying to get Jeff to work with me on a tune....
What kind of boost/vac gauges are you all using?
I am at 18-19 warm idle. That is with 1/2oz per gallon mmo premix.
premix at 1 oz/per gallon and vacuum will go up about a point.
vacuum leaks are isidious---raise the speed to 2k--no load on engine and see if the reading is differant. if it is --you probably have a leak somewhere.
OD
premix at 1 oz/per gallon and vacuum will go up about a point.
vacuum leaks are isidious---raise the speed to 2k--no load on engine and see if the reading is differant. if it is --you probably have a leak somewhere.
OD
I just started using MMO premix btw...have not been thru a full tank with it yet.
It's actually a Mazda reman, surprisingly enough. It's been premixed with Idemitsu since day one, proper warm up/cool down observed, and proper break in. And I never go into boost until coolant temps are at least 160F and oil temps are above 140ish, especially since I run thick Castrol GTX 20W-50.
It's actually a Mazda reman, surprisingly enough. It's been premixed with Idemitsu since day one, proper warm up/cool down observed, and proper break in. And I never go into boost until coolant temps are at least 160F and oil temps are above 140ish, especially since I run thick Castrol GTX 20W-50.
I use my greddy profec boost controller as a vac/boost guage and it is on the VFAD nipple - i wonder if you get a higher reading from the lower manifold ?
I dunno if it worked or not, but my motor is happy right now.
hmm..that might explain a portion of mine i bought mine at 6 miles and from that day on it was mandatory to to average a few redlines a day while on my drives...lol i also turbo charged the engine at about 3k miles
The signal is noisy and only represents the response from one rotor at a time. It "pops" on each intake cycle.
Use the VFAD nipple or split the nipple that goes to the vacuum tank for the SSV/VDI/AIR solenoids.
That's funny, my gauge isn't registering any noise. I get pretty consistent boost/vac readings and I'm using both of those nipples and a T-connector.
Anyone else using these, and are you seeing noise?
I am using what my original GReddy kit recommended, the one after the throttle body. I joined both lower intake nipples with a hose, I should cap them, but I haven't had any problems with it yet. Will joining them have any effect?
you t the 2 nipples together--mm may mean to not just use one of them?
no noise from these that I can tell--although every car can be differant?
I use the lower ones also because I dont have anything else attached to them. They are dedicated only for readings etc this way.
OD
no noise from these that I can tell--although every car can be differant?
I use the lower ones also because I dont have anything else attached to them. They are dedicated only for readings etc this way.
OD
Yeay Boosted!
Joined: Oct 2007
Posts: 271
Likes: 0
From: New Hampshire
Yeay! Today I got a little suprise in the form of boosting to 10.8 psi on the greddy kit.. scared the hell out of me.. I was like.. Whoa.. where did that power come from!? It's a damn good thing I didn't blow anything.. I guess I'm gonna have to look at my wastegate tommorow to see if anything fell off. I guess with 10.8 psi.. I guess that tells me I dont' have a boost leak anywhere
