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Making sure things are ok-3rd gear log

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DSM_6SL2 Power

Banned Member
166
0
Feb 13, 2008
Hoquiam, Washington
So I decided to do a log just to make sure things are running smooth and im not causing any harm to my new engine. I did a pull in 3rd at 14psi creeping to 18psi and holding.


Time RPM TIMING TPS
1.20 3664.0 9.00 100.2
1.52 3812.0 8.00 100.2
1.81 3940.0 9.00 100.2
2.11 4060.0 9.00 100.2
2.41 4196.0 9.00 100.2
2.71 4348.0 9.00 100.2
3.01 4472.0 9.00 100.2
3.31 4608.0 9.00 100.2
3.61 4728.0 9.00 100.2
3.91 4872.0 10.0 100.2
4.21 4992.0 10.0 100.2
4.51 5140.0 11.0 100.2
4.81 5280.0 11.0 100.2
5.11 5420.0 13.0 100.2
5.41 5540.0 13.0 100.2
5.71 5696.0 14.0 100.2
6.00 5844.0 15.0 100.2
6.30 5988.0 15.0 100.2
6.61 6104.0 15.0 100.2
6.91 6220.0 16.0 100.2
7.21 6368.0 16.0 100.2
7.51 6464.0 16.0 100.2
7.81 6596.0 16.0 100.2
 
Alright, that makes sense.

To tune low throttle, you just try and get the STFT as close to 0 as possible, right?

Is it a bad idea to tune out boost leaks? I dont have the means to check/fix them until I go home for spring break.

Awww...c'mon! Find someone with a drill, then go buy the parts to make the BLTer. Most of the leaks can be fixed if you have a socket and wrench set and a parking space. And you can pick up a compressed air tank for $30 at WalMart. While you're there, pick up a spray bottle and a bottle of dish soap. Atleast you'll know what's leaking and order the parts if need be. Then if you can scrounge together a few wrenches and a socket set, you can fix virtually everything if not everything. And you should atleast have those tools being a DSM owner ;)
 
I did a 70-90 time and it was not very good. Only 3.2 seconds. Thats very slow. I really need to get this boost leaks fixed.
 
I did a 70-90 time and it was not very good. Only 3.2 seconds. Thats very slow. I really need to get this boost leaks fixed.

That could very well be the biggest contributor to the slow time. Another thing I noticed was that you're still running the stock SMIC. Assuming it's not physically choking flow, it's probably causing you to have some pretty high temps within the intake manifold. If you're not going to be able to upgrade soon nor get some sort of injection (meth/water/alky), you might be able to get away with running a mixture of E85/pump to kind of "band-aid" the problem. I just started running a 7.5 gal E85 mix on my setup and I dropped my 70-90 time down by .3 seconds just by being able to run the stock timing map versus pulling 4 degrees by redline and then getting more pulled from knock.

The nearest station to your city unfortunately is listed as being 46 miles away:
Seaview One Stop
4105 Pacific Hwy
Seaview , WA 98644
360-642-4223

Just a suggestion!
 
That could very well be the biggest contributor to the slow time. Another thing I noticed was that you're still running the stock SMIC. Assuming it's not physically choking flow, it's probably causing you to have some pretty high temps within the intake manifold. If you're not going to be able to upgrade soon nor get some sort of injection (meth/water/alky), you might be able to get away with running a mixture of E85/pump to kind of "band-aid" the problem. I just started running a 7.5 gal E85 mix on my setup and I dropped my 70-90 time down by .3 seconds just by being able to run the stock timing map versus pulling 4 degrees by redline and then getting more pulled from knock.

The nearest station to your city unfortunately is listed as being 46 miles away:
Seaview One Stop
4105 Pacific Hwy
Seaview , WA 98644
360-642-4223

Just a suggestion!

I compared his log (post #10) to the 2g timing map and didn't see any signs of pulled timing.
 
Im just running super rich from boost leaks. Im having some serios idle problems now, although I dont believe it's the boost leaks. Thats another thread though.

It seems really fast in 1st and 2nd, but 3rd just seems like it's blowing air without a cause.
 
Was more of something to think about for later--he'll raise the boost sooner or later, I'm guessing.

Ya, I will for sure be running higher boost eventually. I had no clue there was e85 in washington. Do you know if there are any near 99004 cheney washington? It's by spokane. 46 miles really is not that far either. Im going to be looking for some more info on e85 now. Know of any good threads?
 
Im just running super rich from boost leaks. Im having some serios idle problems now, although I dont believe it's the boost leaks. Thats another thread though.

It seems really fast in 1st and 2nd, but 3rd just seems like it's blowing air without a cause.

I understand you're in school and everything, but a boost leak tester requires cheap parts and one drilled hole. Fixing most of the boost leaks requires cheap car parts, wrenches, and sockets. Can't you atleast make the tester and see if it's one major, easy-to-fix leak? It's really not a big deal. And once you get it air-tight, it will hold for a very long time. I still hold boost as well as I did after first fixing the slew of leaks, and it's been 12k miles (PCV valve isn't even leaking yet). You might save the total cost of fixing the leaks in a couple of months strictly from fuel savings. As an example, below is the cost for me to fix all of my leaks:

Leak fixes:
  • PCV valve: $8
  • TB gasket: $5 (can of copper gasket spray on the OEM metal gasket or some O2 sensor safe RTV)
  • injector insulators: $20 (and that was 2x what you can get them for)
  • BOV gasket: $4 for a gasket and tube of RTV
  • BISS o-ring: $0.59 at the local hardware store
Parts for a tester:
  • 3" rubber coupler: $3
  • 2.5" PVC endcap: $2
  • 2x hose clamps: $1
  • Bicycle tire valve: free from a bike shop (cut it out of a pinched/bad tube with scissors)
  • 11 gallon compressed air tank: $30 at WalMart
  • Compressed air: free at the local gas station

Total: $73.59...and almost half is for the portable compressed air tank.

To do all of that, I probably needed 8mm, 10mm, 12mm sockets and wrenches plus 14mm wrench for the PCV valve (channel locks or crescent wrench would've worked) and a phillips and flathead screwdriver.
 
I have a boost leak tester tools and all that. What it really comes down to is me being lazy. My compressor is at home, and I know all I have to do is go to a gas station or something, but it's easier said then done. When you got free time in college, it tends to be spent on less productive things.

You are right though, I need to get it done. ASAP!
 
I have a boost leak tester tools and all that. What it really comes down to is me being lazy. My compressor is at home, and I know all I have to do is go to a gas station or something, but it's easier said then done. When you got free time in college, it tends to be spent on less productive things.

You are right though, I need to get it done. ASAP!

I figured you were just being lazy, so I decided to try and embarrass you into doing it.:D If you get the compressed air can, you can drink beer while finding boost leaks. Then you can drink more beer at home while fixing boost leaks.
 
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