I did the Autometer boost guage install this weekend. And i'm only getting 5psi boost and 8psi max @ 6000. I hope there is a kink in the tube. Has anyone else had this problem? I drive a sport w/o the reduction pully (its in my toolbox though), and alta CAI.
thanks

 

Sounds about right. Three of us did gauges in the past 3 weeks. An MCSa, MCS (both pullied) and an MCS JCW. All are getting about 10 PSI and 12 PSI at WOT.

 

I am getting a good bit more than that (~18PSI) on my '03 with 16%
pulley. You guys should check your intercooler boots and tubing
connections.

 

Over atmosphereic or total?

 

These gauges show relative pressure.

 

Getting about 18psi at redline with a 19%

 

Yeah there must be a leak somewhere. I am running a autometer BST gauge and getting 16PSI with a M7 16% reduction pulley. something is wrong. I would follow your lines and double check the connections. Spike

 

Ya I installed my Autometer on my Stock 05' MCS and getting 8 PSI max also...so guess that is good to hear that there are no leaks or kinks. So 8 PSI is pretty standard for a stock Mini?

 

No. You should be getting over 10 psi at redline on the stock pulley. If there aren't any vacuum leaks, check for kinks in the line and then the bypass valve.

 

When was your belt changed last? How many miles on it? It could be slipping

 

I have had a boost gauge fitted to my 04 from new. It made 8psi standard & now makes 12psi with a 15% pulley.

 

8 psi just seems too low. The original poster said he gets 8 psi @ 6k rpm which is about 1 lb less than I get. I'm hitting 9 psi before 6k rpm and it slowly pulls up to 10 by redline. My measurements were taken in 90+ degree Florida heat so my numbers should go up when weather gets cooler. I've seen a lot of posts from people with 15% pulley's who get 14+ lbs of boost.

 

15% pulley ~ 15 psi (Caribbean~90 F, very humid)

The gauge in my sig still had a tad bit to go before redline, then again these gauges aren't the most accurate in the world. I didn't have the gauge before the pulley, so no info there.

I would say that 8 psi is low for a stocker, should be somewhere around 10, check your belt first and go from there.

 

I had a 2% crank pulley and 15% sc pulley installed july 10 this year on MINI born 10/20/06 and 10000 miles. Car was dynoed the Thursday before and dyno indicated 10.3 lbs. @ 6850 RPM. Gauge showed abt 10 lbs. temp in the shop was 92 degrees and 75% humidity.

After pulley install boost gauge shows abt 15 lbs boost but then blows hose off the T fitting ( if I give it sudden WOT ) More moderate throttle application doesn't do that! With the pulley install pressure comes in much quicker ( what we wanted in the first place ) and vacuum is also deeper abt 22 inches.

I will be putting the car back on the dyno soon and will report that along with mileage which did not seem to suffer from the new pulley. Normal highway milage on this car is 31 - 32 MPG with AC.

 

^^ Zip tie your hoses to the male end connectors. They will not move if you tighten them. Also the longer the hose from the bpv to the gauge, the less pressure.

 

Okay, IM not very mechanically inclined and I think I might be having a boost leak/ kink/ or something. Can someone do a full right up with pictures
(if possible) of what to check in what order..? Im sure it could be made sticky and you would win the award for being to coolest person ever!

 

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