Some problems with new setup
09-06-2007, 11:35 PM
#12
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Join Date: Jun 2007
Posts: 0
Re: Some problems with new setup
Originally Posted by PaRaDoX
that has got to be gheyest bov i have ever heard.
seriously.
its ghey.
09-07-2007, 09:36 PM
#13
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Thread Starter
Join Date: Dec 2005
Posts: 35
Re: Some problems with new setup
I'll post a vid tomorrow lol. I know this car is making atleast 220 at the wheels, and stock they make only 90 at the wheels. The head is not a at home dremel job, it was done by a real shop. The guy who owned it and gave use the full engine is named PJ and had the fastest N/A cavalier now he's in 2nd. stock they run 16.8, I tuned her cavi and we got to 16.3 with a bad start. he was untuned and went from running 16.8's to 15.9. He had a video of it. I'm not asking for you to believe me lol.
Yea who knows how long it will last. The oil leak is fixed with a new PCV valve and a custom made gasket I had to hand cut out of red rubber for the drain flange, since the other 2 where ebay crap. Red rubber is 2nd best to only goretex.
Thanks for the clean setup comments, some things have changed though, like the oil inlet flange which cracked in half so I just bought a straight fitting and screwed it into the port. The vacuum hoses on the turbo to the wastegate and EBC have been changed from the clear hose to fuel line, since the hose wasn't heat rated and they all melted of lol I learned though. Also we had a problem a few times with the charge pipe blowing off a few spots every time we hit 9# of boost for more then 5 seconds, but now they are all on there better and held boost great. Lastly I fixed most of the vacuum leakage, but I think there might still be a little pisser somewhere at the throttle body I assume since the boost gauge doesn't even get to 5 psi before the wastegate starts purging at 9#, unless it's just due to the large amount of charge pipe. It goes from 2" off turbo to 2.5" then the elbow is 3" then goes on at 2.5" then the last elbow is 3" to the throttle body at 2.25". unfortunately we ran out of aluminum elbows so we had to get pep boys plastic crap which they only sell 3". we have more 2.5 aluminum coming sometime soon and we'll replace them.
I know it isn't the best, but we had to use what we had and improvise on other stuff. Overall it ended up very well, alot better then I thought it was going to end up, especially since this is my first HMT and I welded the whole exhaust without ever welding before in my life. unfortunately it doesn't look the best but it works and no leaks yet.
Yea I wire wheeled the crap off the last welded on hanger.
Also this is the GF doing what she does best, sorry not **** but what's hotter then a girl working on a car.
Yea she is doing the hard work
Yea who knows how long it will last. The oil leak is fixed with a new PCV valve and a custom made gasket I had to hand cut out of red rubber for the drain flange, since the other 2 where ebay crap. Red rubber is 2nd best to only goretex.
Thanks for the clean setup comments, some things have changed though, like the oil inlet flange which cracked in half so I just bought a straight fitting and screwed it into the port. The vacuum hoses on the turbo to the wastegate and EBC have been changed from the clear hose to fuel line, since the hose wasn't heat rated and they all melted of lol I learned though. Also we had a problem a few times with the charge pipe blowing off a few spots every time we hit 9# of boost for more then 5 seconds, but now they are all on there better and held boost great. Lastly I fixed most of the vacuum leakage, but I think there might still be a little pisser somewhere at the throttle body I assume since the boost gauge doesn't even get to 5 psi before the wastegate starts purging at 9#, unless it's just due to the large amount of charge pipe. It goes from 2" off turbo to 2.5" then the elbow is 3" then goes on at 2.5" then the last elbow is 3" to the throttle body at 2.25". unfortunately we ran out of aluminum elbows so we had to get pep boys plastic crap which they only sell 3". we have more 2.5 aluminum coming sometime soon and we'll replace them.
I know it isn't the best, but we had to use what we had and improvise on other stuff. Overall it ended up very well, alot better then I thought it was going to end up, especially since this is my first HMT and I welded the whole exhaust without ever welding before in my life. unfortunately it doesn't look the best but it works and no leaks yet.
Yea I wire wheeled the crap off the last welded on hanger.
Also this is the GF doing what she does best, sorry not **** but what's hotter then a girl working on a car.
Yea she is doing the hard work
09-11-2007, 08:13 PM
#14
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Thread Starter
Join Date: Dec 2005
Posts: 35
Re: Some problems with new setup
http://smg.photobucket.com/albums/v1...firststart.flv
That's a short vid of our first good night, remember it's untuned.
That's a short vid of our first good night, remember it's untuned.
09-11-2007, 10:11 PM
#16
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Join Date: Jun 2007
Posts: 0
Re: Some problems with new setup
the general rule of thumb is that for ever 1psi of boost, you will make an aditional 10crank hp. keep in mind that this is a TUNED setup.
therefor, given that we are estimating, 9psi = 90 crank hp which puts you at ~205 crank hp (stock is 115 right?).
even by your math of 90 whp/115 crank hp = a 22% drivetrain loss.
therefore, 205 - 22% = 160 whp.
given that your heads MIGHT have given you 25 crank hp, your now at 230 crank hp - 22% drivetrain loss = 179 whp
keep in mind thats just an estimate, and your car is untuned as you stated, i would put the your estimated whp at about 160
after watching the "ripper vid", and since the quality is the greatest (joking), i dont think i heard your gf break the tires loose one time. all i heard was the engine rev and that god awful bov go off and the damn radar detector beeping non stop.
with the vid u put up, i feel confident in my statements.
therefor, given that we are estimating, 9psi = 90 crank hp which puts you at ~205 crank hp (stock is 115 right?).
even by your math of 90 whp/115 crank hp = a 22% drivetrain loss.
therefore, 205 - 22% = 160 whp.
given that your heads MIGHT have given you 25 crank hp, your now at 230 crank hp - 22% drivetrain loss = 179 whp
keep in mind thats just an estimate, and your car is untuned as you stated, i would put the your estimated whp at about 160
after watching the "ripper vid", and since the quality is the greatest (joking), i dont think i heard your gf break the tires loose one time. all i heard was the engine rev and that god awful bov go off and the damn radar detector beeping non stop.
with the vid u put up, i feel confident in my statements.
09-11-2007, 11:05 PM
#18
3.0 BAR
Join Date: Feb 2006
Posts: 2,808
Re: Some problems with new setup
That's a pretty ------- stupid "general rule." 1psi=10chp? How the ---- do you actually think that is anywhere close to an accepted figure. so you are trying to say that with an 88mm turbo and 40psig you would only pick up 400chp? ------- dumbass. Post ****
09-11-2007, 11:13 PM
#19
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Thread Starter
Join Date: Dec 2005
Posts: 35
Re: Some problems with new setup
I already rotated the turbo to point down for the path of least resistance. I don't see how rotating it will help. The Vid was low rpms granny shifting, the last time we speed shifted the whole pipe system blew off lol. For now we're just going easy on it till I tune it. If it was 160 WHP it wouldn't keep up with a car that stock came with 205 WHP and now is heavily modified, that I know runs 13's with stock tires still. We also raced a newer civic SI and blew it out of the water. I'm not saying this is the fastest cavalier ever nor the fastest car, but in reality nothing says it better then a dyno. Also I don't see how someone can base something as 1 psi = 10 hp since all turbos will put out more volume over another 
. Once I get a new wideband sensor I'll zero in the fueling as best I can with a Alpha-N vehicle, the fueling is pretty close except in boost, since the vehicles Map sensor only reads up to 45KPA then the value just stays constant over that.
Qikenuf I'll post some later lol when the GF isn't around haha
. Once I get a new wideband sensor I'll zero in the fueling as best I can with a Alpha-N vehicle, the fueling is pretty close except in boost, since the vehicles Map sensor only reads up to 45KPA then the value just stays constant over that.Qikenuf I'll post some later lol when the GF isn't around haha
09-11-2007, 11:15 PM
#20
3.0 BAR
Join Date: Feb 2006
Posts: 2,808
Re: Some problems with new setup
Originally Posted by Julex
Qikenuf I'll post some later lol when the GF isn't around haha
