First time at track.....disappointing with mods, something not right?

[gsxrtalon]

Hey guys I just went to the track for the first time yesterday with my car. I have never been to a track some it was a completely new setting and it was awesome but my times with my car and the mods done to it were a little upseting. Mods are in my profile. It doesnt seem to make sense Im only getting 13second passes. My best of the night was a 13.0 flat with a 60ft of 1.8 and a trap of 108mphs. Most of the rest of my runs were 13.2's or 13.4's. It was warm all day probably 85degrees and I was running straight pump gas. I thought boost was set at 22psi then after a couple passes I did a short long in the parking lot and from a 2nd gear pull I was only getting 15psi, so I turned it up and never got it dialed in right, after I messed with the boost when I did a pass and the rpm's went over 5500 the CEL came on so I called it a night. What do you guys think is wrong. With my mods I think I should be in the 12's easily, maybe Im wrong.

 

[andymoraitis]

Your traps were good enough for mid 12's (I went 12.50's at 108 with a 16G stock cams, stock 2.0, fuel mods and a sidemount) so I'd have to say something was off with your tuning or you had massive boost leaks. It's very hard to tell what's up because we don't have a log to look at. In the interim, I need to ask the basic questions:

1. What kind of fuel were you running
2. What was your target boost
3. What were your fuel settings for A/F and timing in DSM Link
4. What were your shift points (RPM)

Your 60' wasn't bad enough to justify a 13.0 or 13.2 with those kinds of trap speeds. The motor is way down on power (boost or tune). With those mods, high octane and race gas, I would expect at least a full second better than what you saw.

Give us more feedback so we can help,

Andy

 

[CanadianTSi]

On straight pump gas and low boost those numbers seem fine to me. Must have been a little slow on the shifting but other than that, if your boost really was 15psi than thats a good time.

 

[gsxrtalon]

I was using 93 octane pump gas. I had done logs a couple weeks before and logged a couple third gear pulls pushing 22psi, holding 21-22psi to redline solidly. However, that was a couple weeks before I went to the track. Well, I thought I had logged it and tuned it for 22psi, however, after a couple passes and numbers not matching what I thought they should I did a short log in the parking lot of the track and in 2nd gear(all the room I had) I only hit 15psi. So I think I was running at 15psi all day instead of the 22psi I originally thought.
As for shift points I launched at 5000k and held 1st to about 6k then held 2nd to 6500k, then took 3rd into 7k, then into 4th(done).
Friends there said that I launched good and pumped but then seemed to fall on my face before or at 2nd.
A friend in a new SRT-4 with stock turbo(had minor upgrades, wastegate,intake,exhaust,bov, gutted interior) was running 13.2's and one race next to me, I jumped him off the line but then he walked pasted me. I was so confused as was he.
As for my fuel settings and a/f along with timing here is the log taken most recently before going to the track.This is the only way I know how to post it. Sorry

 

[CanadianTSi]

I would take first and second to 7k aswell.

 

[gsxrtalon]

I tried to hold 1st to redline a couple times and it seemed like that didnt help, it still fell on its face. It was almost like once I shifted the turbo didnt spool up or wasnt and took some rpm's to spool up, even though the rpm's stayed high enough to keep good boost.

 

[Turbocharged]

15psi on a 50 trim is not even scratching the surface.

Do you have boost leaks? What was the code for the CEL?

We have nearly identical mods but I maxed out my 660's. Something is wrong here. Also, you don't really need to spin a 2.3 that high with the mods you have. I'll take a look at the log after work.

 

[Turbocharged]

What kind of airflow were you seeing (g/sec, lb/min)?

 

[gsxrtalon]

honestly Im not sure, I wanted to do a log while my run but got side tracked. Once I started messing with the boost to try to turn it up, I turned it too high then did a log, then turned it down did a log and then turned it down a little more and ran it. Once I ran it after messing with the boost at higher rpm's the CEL would come on and a whistleing noise would pop up in the cab, not too loud but noticeable. Once I shifted the CEL would go off. After we left the track, I was getting onto the highway and in 3rd tried to get up to speed(rather quickly) and it seemed as soon as my turbo really kicked in........the car either backfired or something, it spit and sputtered and didnt want to do much of anything. I will do a log today from 3rd and post it.

 

[compression]

It sounds to me you may have a small boost leak. try a boost leak test maybe after you log it.

 

[Turbocharged]

The CEL turns on when timing is retarded more than 5 degrees on a dsmlink ECU. A boost leak would cause the knock and the high pitched noise you were hering.

 

[gsxrtalon]

ok.......well I have a boost leak tester and checked awhile ago. I hooked it up and tried to fill until the boost levels I run at but it wouldnt hardly move. I couldnt get the pressure high enough to here any leaks. I hear air coming out of my joe p mbc (lil hole on the side) but thats normal Im told. I will try another boost leak test. If I had boost leak issues then would the dsmlink still read the boost levels that it did. Say 22psi, like in my log. It held 22psi very well. I will do another log, boost leak test and check little things like plugs,wires....ect.

 

[wishihadatalon]

take out the mbc to do the test. Also were you doing the boost leak test with the throttle plate open? It really does sound like a boost leak.

 

[gsxrtalon]

I tried to do a boost leak test. I hooked up the boost leak tester, eliminated the mbc and tried to pressurize the system filling it up to the boost level I run, however, my boost gauge needle barely moved and I couldnt hear anything. Am I doing something wrong or is there a serious problem? Im using a compressor at our shop so Im sure Im getting enough air and pressure.

 

[CanadianTSi]

I tried to do a boost leak test. I hooked up the boost leak tester, eliminated the mbc and tried to pressurize the system filling it up to the boost level I run, however, my boost gauge needle barely moved and I couldnt hear anything. Am I doing something wrong or is there a serious problem? Im using a compressor at our shop so Im sure Im getting enough air and pressure.

If you can't build any pressure on the gauge you must have a huge leak.

 

[gsxrtalon]

ok so should I just take all hoses and clamps off and re-tighten and everything. I have a couple oil leaks , may that cause a problem?

 

[pneumo]

The shift points should get lower as you go up. For example, try the 1>2 shift at 6800, 2>3 at 6500, and 3>4 at 6300.

 

[gsxrtalon]

thanks. Im still confused as to what I should be about not being able to do a boost leak test. Where to start? Just start replacing gaskets and such?..........I have another log I did just yesterday, take a look at it and tell me what you think. Thanks guys.

 

[bullettdsm]

Gotta agree with the others on this. From your first post on, all I thought was boost leak. You're pulling timing (DSMLink cel) so that also fits leak. What you may want to do if you can't find the leak is narrow down your search. Block off just your FMIC (I presume that's what you are running) with hoses check for leaks, then continue. Block off small "chunks" of your boost system until you find your leak. It's got to be a pretty big leak. Maybe your blow-off valve?

MB

 

[gsxrtalon]

Thanks for the help guys. So Ill un-hook a coupler on my fmic and hook the tester up from there and try again, right? Thanks
Then move to another area.

 

[bullettdsm]

Thanks for the help guys. So Ill un-hook a coupler on my fmic and hook the tester up from there and try again, right? Thanks
Then move to another area.

Yes, but block off an outlet hose with something so that you are only testing that one section of you boost system. If you have a leak in any of that section you will not be able to build pressure or you will hear the leak. It's kind of like following down electrical breaks. Process of elimination.

MB

 

[kelvinb]

your mbc has a line coming from the charge side, cap that off with something. leak test each part. start at your uicp, the your fmic, then your turbo. it will be alot easier to test that way instead of going from your turbo and listening for everything.

 

[olmytsi]

Next time you go to the track, try to bring a laptop and log the runs so you can make changes and improve as the night goes on.

I do boost leak tests the easy way: put a cap on the turbo and stick air into the hose that hooks up to the pcv valve and listen for leaks.

 

[gsxrtalon]

thats the same way I do them with my made-tester. Now I will go from uicp/ hook the tester up there and listen and go from there. Thanks

 

[yekrahs]

Your only seeing 36lb/min on your 50 trim, and your timing is only seeing 12degrees....thats a major reason why you ran the times you did. I assume you have a wideband? what were your a/f's like? get your a/f set, and then start advancing timing until it starts to knock.