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High load issue with normal boost

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Old Jul 15, 2008, 07:52 PM
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so about the weep hole its fine just plug off both line going to the MBC? because im getting noise from the hole.

and no problem on the type i just didn't want it to get too confusing.

im looking into what is needed for the 2byte conversion now

-Ethan
Old Jul 15, 2008, 07:56 PM
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I've never bothered plugging the mbc but you can if you want to...the noise from the hole leaking might make it difficult to locate another leak is all.
Old Jul 15, 2008, 08:06 PM
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If you have the MBC pressure source line T'd into the BOV line just take the T out and route the vac line normally to the BOV and do the pressure test.

If you have the pressure source to the compressor outlet pipe then you can either take the vac hose off and cap the outlet pipe nipple or simply crimp the vac line going to the bov when pressure testing.

The typhoon is a pile of crap and does indeed royally mess with the MAF and readings.

Originally Posted by Petey Turbo
I though I heard something about the BOV returnline going too far into the intake pipe with that specifit intake causing weird MAS readings..Isn't this why everyone stays away from the K&N typhoon??
I know it is behind the MAS but still
Yes it has a metal flap behind the bov return line. It basically makes the pipe half the size of normal at that point in the pipe. It's a totally retarded design.
Old Jul 15, 2008, 08:07 PM
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Originally Posted by Mellon

some MBC's have a weep hole, it's normal and meant to keep the check ball from getting stuck if I remember correctly.
That hole is what bleeds off the pressure from the wastegate, hence bleeder valve.
Old Jul 15, 2008, 08:10 PM
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Originally Posted by ethan169

im looking into what is needed for the 2byte conversion now

-Ethan
https://www.evolutionm.net/forums/sh...ght=2byte+load

Or I am sure Mr. Melon can do it for you.
Old Jul 16, 2008, 09:31 PM
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ok so i found a leak at the FPR line where my boost gauge tees into it. replaced all the lines and tie there no more leaky.

also when putting the intake back together i used the factory rubber tube and kept the K&N MAS adapter for the open filter. basically the same thing as before but omitting that typhoon intake tube. which when was off the car i could see this flap right before the DV dump.

Ran a couple of quick logs and it seems to be much better. It definatly feels much stronger in 1st and 2nd and basically all over.

I have attached some logs via a zip file.

Let me know what you think

Thanks guys!
Attached Files
File Type: zip
logs- fixed leak.zip (15.5 KB, 2 views)
Old Jul 16, 2008, 09:49 PM
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Nice, I think you will be very happy you got rid of that typhoon intake pipe
Old Jul 17, 2008, 05:54 AM
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the loads and AFR went from 300 to 260 and 9's to 11's so clearly you're on the right path. However, most of the logs show you easing into the throttle slowly and or only going to 80% IDC,

when you get some fresh logs with 100% TPS from 2500 to redline send those to my e-mail and we'll get back to tuning
Old Jul 17, 2008, 07:18 AM
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Yeah i noticed that when i got home and was too tired to go back out.

sometimes my carpet gets stuck under the pedal, as well as when i came from the gym at night time and its leg day i usually bust my legs up pretty good on squats so my legs get a little shaky.

Im headed out right now to get a couple fresh logs

thanks again for the help guys!
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