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Old 05-05-2004, 03:09 PM   #1
steve
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PWN3D downshift from 5-3, hit the throttle, lack of boost?

I was blasting down the I-5 over the weekend, and in an effort to pass a sluggish 1.8T fagmobile, er, I mean VW, my boost guage went dead, and the car began to stumble under load. I pulled over to the side of the road and double checked that I hadn't lost an IC hose or something, and found no issues, or at least nothing that could be easily fixed.

400+km later, I arrive in Yakima, and find the first Home Depot I can to buy a plug for the T-tap used with my boost guage. After removing the guage and blocking off the T, it seemed like boost came back, but even now it's not quite the same as before.

Long story short?
Don't bother with autometer crap.
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Old 05-05-2004, 03:51 PM   #2
NiteRaven
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what speeds/rpm where you cruising on 5th when you dropped to 3rd? Was it just the meter that crapped out? it's an interesting situation and curious one as well.

hopefully the VW didn't see all that happen
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Old 05-05-2004, 05:06 PM   #3
steve
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The VW did see it happen, and flew ahead as I pulled off the highway. hypa was embarassed to say the least as the chick and her male passenger laughed at me.


I was travelling at about 100kmh/ 3000rpm (speed limit is 115), and for about 5 km, she was changing lanes in front of me, then slowing. I would pass, then after a short time, she would do the same thing, sneak up, cut in front of me, then slow down. Maybe my BC plates confused them? Anyway, I had enough, and wanted to blast in front of her in an effort to lose her in the traffic ahead. Of course when I downshifted, it all happened.

I've done this many times before, and actually have become pretty good at revmatching, etc. This time was the same as any other, except that the guage basically stopped working, stuck on 10kpa (vacuum). Once I arrived in Yakima, the guage had slowly set back down to 0, but it definately wasn't working.

Wierd stuff my friend, wierd stuff.


Anyway, I'm talking to a friend about getting his Blitz boost guage. At any rate, I'll be testing mine tonight with a vacuum pump in an effort to narrow down the problem. Other than that, there isn't much I can think of.

FYI, when I d/s from 5th (3000rpm) I hit close to 5800rpm in 3rd.
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Old 05-05-2004, 05:17 PM   #4
Necromancer
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Yeah, that's about right.

Default Re: downshift from 5-3, hit the throttle, lack of boost?

Quote:
Originally posted by hypa
Don't bother with autometer crap.
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Old 05-06-2004, 12:06 PM   #5
steve
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Here's a funny update to the story.

I tested the guage, and other than it being off by 1psi, it worked perfectly. I then checked the hoses, and it appeared that one of them melted against the block. So in effect, I had a leak in my boost guage hose that allowed the air to leak.

I stripped off my MBC, etc last night, and I'll be running new hoses this weekend.
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Old 05-06-2004, 01:22 PM   #6
NiteRaven
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Quote:
Originally posted by hypa
Here's a funny update to the story.

I tested the guage, and other than it being off by 1psi, it worked perfectly. I then checked the hoses, and it appeared that one of them melted against the block. So in effect, I had a leak in my boost guage hose that allowed the air to leak.

I stripped off my MBC, etc last night, and I'll be running new hoses this weekend.
So that's what happened. Maybe your hose got a bit loose and when you drop from 5th to 3rd,therefore shifting the motor a bit from the mount and then the super hot block (from highway cruising) touched it and it sizzled. Makes sense to me

I'm guessing rubber/sillicone hoses. Upgrade time ! metal flex piping .

off topic : VW's are not that bad are they? My brother's MK2 VR6 swapped and S/C'ed goes like stink, complete with babyseat in the front I might add
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Old 05-06-2004, 03:47 PM   #7
Benjamin Tang
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yeah not sure of the vw hate... i have a friend with a chipped 1.8t wagon and it goes very well. i don't care much for the boxcar styling, but i have to grudgingly admit that the much larger interior, cargo space, and quality of materials in it puts me to shame
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Old 05-06-2004, 03:51 PM   #8
Lantec
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Quote:
Originally posted by Benjamin Tang
yeah not sure of the vw hate... i have a friend with a chipped 1.8t wagon and it goes very well. i don't care much for the boxcar styling, but i have to grudgingly admit that the much larger interior, cargo space, and quality of materials in it puts me to shame

my cousin's civic's trunk seems to be bigger than mine
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Old 05-06-2004, 03:54 PM   #9
Benjamin Tang
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Quote:
Originally posted by Lantec
my cousin's civic's trunk seems to be bigger than mine
yeah i know... which is why i went with a wagon intead of a sedan.

i would like to try a vw diesel sometime. torque....
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Old 05-06-2004, 07:56 PM   #10
Penphoe
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Quote:
Originally posted by Benjamin Tang
i would like to try a vw diesel sometime. torque....

That, and AWESOME gas mileage! My friend's brother drove from Saskatchewan to Vancouver on a single tank of diesel!!! Then he drove around town on the same tank of gas. Diesel is an awesome fuel. If VW comes out with a TDI vehicle with 4Motion that's affordable, I'd seriously consider it. It won't be an STi for sure, but heck, it'll out distance it at the pump!!!

LaterZ!
Darren!!
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Old 05-06-2004, 08:03 PM   #11
AllWheelDrift
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Yeah, VW should sell the 6 speed 150bhp 1.9l TDi 4motion Jetta Wagon here.
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