first time dyno today, boost woulnd't go up past a bar - why?
10-09-2003, 07:22 PM
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first time dyno today, boost woulnd't go up past a bar - why?
84mm RS machines / DPR b16 dynoed today with tuning by sakai
.82 60-1 t3/4
made 314.7 whp, pretty flat over 300 from 7500-9200 at a bar (15psi)
Here is the thing. We put the boost all the way up to 1.6 bar which should be about 24 lbs but it wouldn't get over 15-16lbs. It was in the 15lb range from a 1.1 to 1.6 bar setting on the profec A. Trying to figure out why?
I have a 3" downpipe to 3" cat to 3" thermal. Is it possible the cat became so clogged from being really rich for a while (driven daily for 300 miles in the 10-11:1 range at part throttle / idle / etc) that it is not letting me build boost? If not the cat, any other ideas? I played with the dip switches on the profec to no avail.
.82 60-1 t3/4
made 314.7 whp, pretty flat over 300 from 7500-9200 at a bar (15psi)
Here is the thing. We put the boost all the way up to 1.6 bar which should be about 24 lbs but it wouldn't get over 15-16lbs. It was in the 15lb range from a 1.1 to 1.6 bar setting on the profec A. Trying to figure out why?
I have a 3" downpipe to 3" cat to 3" thermal. Is it possible the cat became so clogged from being really rich for a while (driven daily for 300 miles in the 10-11:1 range at part throttle / idle / etc) that it is not letting me build boost? If not the cat, any other ideas? I played with the dip switches on the profec to no avail.
10-10-2003, 07:00 AM
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Re: first time dyno today, boost woulnd't go up past a bar - why? (trboCIVICWRX)
no, I thought the offset was just to change what is displayed to me, not what it is actually set at...
10-10-2003, 09:43 AM
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Re: first time dyno today, boost woulnd't go up past a bar - why? (trbob16a)
as far as I understand it, the offset is for calibrating the EBC so that it knows what zero is..
for lack of a better way to explain it...
I could be wrong, and this might not have anything to do with your problem, but I thought that I should at least offer it as a suggestion...
for lack of a better way to explain it...
I could be wrong, and this might not have anything to do with your problem, but I thought that I should at least offer it as a suggestion...
10-10-2003, 10:05 AM
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Re: first time dyno today, boost woulnd't go up past a bar - why? (trbob16a)
take the vacuum/boost hose off the wastegate. A quick and simple test to find out out if its your boost controller or something else.
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10-10-2003, 11:41 AM
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Re: first time dyno today, boost woulnd't go up past a bar - why? (LsTurbo91)
i have the same problem with the Profec B, so i dont know if this pertains with yours. im running a Tial 46mm with 10 lb. spring and it doesnt boost passed 16-17 psi. with high boost all the way up. i found out that im not getting enough boost pressure from the vacuum hose that goes to the controller in the cabin, so i gave it its OWN VACUUM/BOOST SOURCE and the problem went away. i had it previously tapped to another vacuum hose. well hopefully that helps u out a little, good luck with it. peace!
10-10-2003, 11:48 AM
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Re: first time dyno today, boost woulnd't go up past a bar - why? (TurboDANDEE)
thanks for all of the replies, I'm going to go out and take a look at it.
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