Ignorance is bliss
09-13-2005, 11:10 AM
#1
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Ignorance is bliss
Rigged up a boost leak tester and found that I had a leak so bad it would almost be equivalent to having a 2" hole in my intercooler piping. As soon as I would put any air in the system it would rush right out. The spot was at the coupler on my intercooler inlet. The coupler was barly over the piping. It literally would hold no pressure at all. I am surprised I saw any boost at all. This anwsers so many questions.
Car literally spools 3X as fast. After I fixed it I saw 13 psi by 4.5K rpms, it feelt amazing. I can't believe how fast the car is now, and I haven't really gotten into it yet. At the same time it is kinda scary because if I was able to see the traps that I have with this leak I can't imagine what is in store. I almost don't want to drive the car hard till I get to a dyno, don't want to be pushing the envelope and not know it.
I can't believe I have been driving the car like this and not knowing what I have been missing.
Still have a couple other small leaks that I need to fix. Because of lack of time I didn't even really get to put the system under any real pressure. I just fixed the one large one so it would at least hold some amount of air, it could still be leaking at higher boost levels, I don't really know.
Car literally spools 3X as fast. After I fixed it I saw 13 psi by 4.5K rpms, it feelt amazing. I can't believe how fast the car is now, and I haven't really gotten into it yet. At the same time it is kinda scary because if I was able to see the traps that I have with this leak I can't imagine what is in store. I almost don't want to drive the car hard till I get to a dyno, don't want to be pushing the envelope and not know it.
I can't believe I have been driving the car like this and not knowing what I have been missing.
Still have a couple other small leaks that I need to fix. Because of lack of time I didn't even really get to put the system under any real pressure. I just fixed the one large one so it would at least hold some amount of air, it could still be leaking at higher boost levels, I don't really know.
09-13-2005, 11:47 AM
#3
How did you rig it up? Tons of tape on the pipe at the turbo inlet and a valve stem. when I was on the dyno I had a leak some were but was not able to find it with the car running. I've been mulling over a set up but haven't gotten that far.
09-13-2005, 12:08 PM
#5
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Originally Posted by IceY2K1
Nice way to find FREE horsepower and torque...assuming you have the fuel/tuning to take advantage of it.
09-13-2005, 12:12 PM
#6
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Originally Posted by choray911
How did you rig it up? Tons of tape on the pipe at the turbo inlet and a valve stem. when I was on the dyno I had a leak some were but was not able to find it with the car running. I've been mulling over a set up but haven't gotten that far.
Take a PVC pipe end cap. Drill a hole in the end. Insert valve steam. Seal with some silicone. Using a coupler, attach to where ever you want in the system. I used it two places. First, right in place of my filter but had problems with it there so moved it to right after my turbo outlet.
You need an air compressor to do it though.
09-13-2005, 01:38 PM
#8
What did you do to solve your idle issue? Don't you think that kind of vacuum leak was a problem too?
That's a good point about the wastegate spring and BC off.
That's a good point about the wastegate spring and BC off.
Originally Posted by I30tMikeD
Been running the JWT since I got the idle problem worked out. Should be nice and safe, but still don't want to be putting down 3rd gear shattering type of power on a daily basis. I am too scared to run the stock ECU now, I actually see my 10psi wastegate spring boost as opposed to before when I would get 7psi out of my 10psi spring. Boost controller is turned off right now. I can even get better spool by setting the gain and start boost function.
09-13-2005, 01:53 PM
#9
Originally Posted by choray911
How did you rig it up? Tons of tape on the pipe at the turbo inlet and a valve stem. when I was on the dyno I had a leak some were but was not able to find it with the car running. I've been mulling over a set up but haven't gotten that far.
09-13-2005, 02:48 PM
#11
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Originally Posted by IceY2K1
What did you do to solve your idle issue? Don't you think that kind of vacuum leak was a problem too?
That's a good point about the wastegate spring and BC off.
That's a good point about the wastegate spring and BC off.
09-13-2005, 04:48 PM
#12
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Originally Posted by I30tMikeD
Rigged up a boost leak tester and found that I had a leak so bad it would almost be equivalent to having a 2" hole in my intercooler piping. As soon as I would put any air in the system it would rush right out. The spot was at the coupler on my intercooler inlet. The coupler was barly over the piping. It literally would hold no pressure at all. I am surprised I saw any boost at all. This anwsers so many questions.
Car literally spools 3X as fast. After I fixed it I saw 13 psi by 4.5K rpms, it feelt amazing. I can't believe how fast the car is now, and I haven't really gotten into it yet. At the same time it is kinda scary because if I was able to see the traps that I have with this leak I can't imagine what is in store. I almost don't want to drive the car hard till I get to a dyno, don't want to be pushing the envelope and not know it.
I can't believe I have been driving the car like this and not knowing what I have been missing.
Still have a couple other small leaks that I need to fix. Because of lack of time I didn't even really get to put the system under any real pressure. I just fixed the one large one so it would at least hold some amount of air, it could still be leaking at higher boost levels, I don't really know.
Car literally spools 3X as fast. After I fixed it I saw 13 psi by 4.5K rpms, it feelt amazing. I can't believe how fast the car is now, and I haven't really gotten into it yet. At the same time it is kinda scary because if I was able to see the traps that I have with this leak I can't imagine what is in store. I almost don't want to drive the car hard till I get to a dyno, don't want to be pushing the envelope and not know it.
I can't believe I have been driving the car like this and not knowing what I have been missing.
Still have a couple other small leaks that I need to fix. Because of lack of time I didn't even really get to put the system under any real pressure. I just fixed the one large one so it would at least hold some amount of air, it could still be leaking at higher boost levels, I don't really know.
Man Mike the boost bug just got a hold of you
keep up the good work. I can't wait to see your dyno sheet, what is your hp and tq goals.
09-13-2005, 08:35 PM
#13
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Originally Posted by IceY2K1
What did you do to solve your idle issue? Don't you think that kind of vacuum leak was a problem too?
That's a good point about the wastegate spring and BC off.
That's a good point about the wastegate spring and BC off.
Being that the leak is before the MAF is why it did not cause a driveability issue
09-13-2005, 08:39 PM
#14
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Originally Posted by Royal_T
Man Mike the boost bug just got a hold of you keep up the good work. I can't wait to see your dyno sheet, what is your hp and tq goals.
keep up the good work. I can't wait to see your dyno sheet, what is your hp and tq goals.I want to dyno soon. Probably won't happen this month though.
did a little bit of boost controller tuning on the highway earlier. Got a fairly steady 12psi but the last few pulls it started to fall off after 5.5K rpm's. Adjusting the gain setting did not seem to help either. I am sure I still have a leak or two. I was seeing 12psi by about 4.5K.
09-13-2005, 11:16 PM
#17
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Originally Posted by IceY2K1
So what was the idle fix then?
09-14-2005, 07:16 AM
#18
freaking awesome to hear.....this has made my wed morning and I really cant wait to get my car back now this weekend !!!!!! Im so excited I just wanna walk around and break everythig is ee, way too much energy in me!!!!
09-19-2005, 03:36 PM
#19
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Going to dyno tomorrow evening. Been running at 12.7-13 psi lately. Gonna go out tonight with my cut out open and get the boost set for that. Will try and get some pulls with the cut out open and closed. I am really curious to see what type of numbers I put down with the JWT ECU. I am thinking 330-350....but I really have no idea.
09-19-2005, 06:08 PM
#21
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Originally Posted by slimer
Where and what time? I will be in Aurora from 9-11. If I get my MAF wired in tonite, I will make a few runs with you as well. Let me know.
Steve
Steve
09-19-2005, 06:19 PM
#22
Yup. 5 is good for me. Gives me some time to do a quick street tune to get my a/f's to where I want them to be. Is this at the viper shop?
I will bring the camera. Anything else? If you don't mind, I would like to try out my old z32 MAF on your car to see if it really was fried.
I will bring the camera. Anything else? If you don't mind, I would like to try out my old z32 MAF on your car to see if it really was fried.
09-19-2005, 08:20 PM
#23
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Originally Posted by slimer
Yup. 5 is good for me. Gives me some time to do a quick street tune to get my a/f's to where I want them to be. Is this at the viper shop?
I will bring the camera. Anything else? If you don't mind, I would like to try out my old z32 MAF on your car to see if it really was fried.
I will bring the camera. Anything else? If you don't mind, I would like to try out my old z32 MAF on your car to see if it really was fried.
You might want to call them and see if they have time for another car that late. Just don't want to surprise them, ya know.
Bring your camera.
09-19-2005, 09:26 PM
#26
Originally Posted by I30tMikeD
I would rather not swap out MAF's, especially if you think it is bad.
You might want to call them and see if they have time for another car that late. Just don't want to surprise them, ya know.
Bring your camera.
You might want to call them and see if they have time for another car that late. Just don't want to surprise them, ya know.
Bring your camera.
I found this place, but I don't think that its correct.
http://www.precisionautomotive.net/p....dyno_labs.php
09-19-2005, 09:33 PM
#27
Is this it?
http://www.svspower.com/contact_us.aspx
http://www.svspower.com/contact_us.aspx
09-19-2005, 10:07 PM
#28
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Originally Posted by liqidvenom
isnt this the same guy that said he only wanted like 5psi and we all told him hes gonna go higher.
09-19-2005, 10:08 PM
#29
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Originally Posted by I30tMikeD
Going to dyno tomorrow evening. Been running at 12.7-13 psi lately. Gonna go out tonight with my cut out open and get the boost set for that. Will try and get some pulls with the cut out open and closed. I am really curious to see what type of numbers I put down with the JWT ECU. I am thinking 330-350....but I really have no idea.
Man I can't wait for this
You should hit higher then 350 with 12psi. I made 330hp and 350tq with 8.5 so i know you are going to be higher with 12psi. Good Luck and take lots of vids
09-19-2005, 10:17 PM
#31
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Originally Posted by Royal_T
Man I can't wait for this You should hit higher then 350 with 12psi. I made 330hp and 350tq with 8.5 so i know you are going to be higher with 12psi. Good Luck and take lots of vids
You should hit higher then 350 with 12psi. I made 330hp and 350tq with 8.5 so i know you are going to be higher with 12psi. Good Luck and take lots of vids
09-19-2005, 10:24 PM
#32
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Originally Posted by slimer
Mike, Jay made that with 10.5 psi didn't he?
How is your boost surge with the ebc? Does it fluctuate a lot?
How is your boost surge with the ebc? Does it fluctuate a lot?
I break the tires loose in 3rd
09-19-2005, 10:26 PM
#33
Originally Posted by I30tMikeD
There is something going on with my boost. Don't know if it is me using the EBC incorrectly or maybe the turbo running out of breath with the small 46 trim, but I start bleeding boost about 1K rpm's after peak. I have been able to fix some of it with the gain control on the EBC but it still doesn't hold right. At the moment I have it peaking at 12.7-13.0 at 4.5K, it holds steady till about 5.5K, then falls off to 11.5-12.9 at 7200. I have fixed all boost leaks, the system will hold 15psi no problem.
I break the tires loose in 3rd
I break the tires loose in 3rd
We'll just talk tomorrow.
09-19-2005, 10:31 PM
#34
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Originally Posted by slimer
That will definitely play with your HP curve. IIRC Jay had the same problem. Which EBC are you running?
We'll just talk tomorrow.
We'll just talk tomorrow.
I have the Greddy Profec B
