Bad driver or something wrong?

[Bad93ex]

Hi I am somewhat new here. I have been lurking in the archives trying to soak up as much info as possible about DSM's.

I have a 91 Tsi AWD with 99k on it. Its in pretty good condition. My mods so far are K&N Filter, Dejon Tool Intake, MBC w/boost gauge set @ 14 psi.

Granted I have been getting better and better every week with this car my best 1/4 time so far was a 15.008 trapping at 88.601 mph and a 2.196 60'. I know the 60' could use some help but will it really lower my ET that much? Does there seem to be something else wrong? Will removing/replacing the fog lamps help much? How about a new clutch?

I have hit fuel cut with my car a couple of times but it seems to only happen at night when it cools off. Could a new fuel filter and the re-wire mod help remedy this? Or do I need an exhaust before I can turn my boost up to that level?

Thanks in advance.

 

[nore474]

you should really get a fuel pump to be safe, a walbro 190 and up will be fine also take the honey comb off your MAS that can be the problem also

 

[mrb91gsx]

Yup remove the honeycomb. And the 2.1 will definitely lower your ET. Work on that driving. First time at the track with a bumb clutch pedal assembly i was pulling 1.8-1.9 60' times, however it was 1/8th mile so im not sure what the 1/4 is yet.

 

[4G63 GST]

Will removing/replacing the fog lamps help much?

Make sure you take out the right honey comb or youll end up with big problems. Definatly read up on it first. As for the fuel pump .. for the price just get the Walbro 255 .. because after exhaust and possibly an upgraded intercooler or injectors youll be much more satisfied with the 255 then the 190. Its only like $80-100 depending on where you go and it'll make a big difference.

For the fuel cut .. change your fuel filter first.. if your not planning on exhaust or fuel pump or anything like that for awhile. Sometimes those things are original and are all gunked up. But depending on your car and exhaust wont help fuel cut .. especially 3" turbo back .. usually that will increase your chances unless your ported or have an external wastegate. Best thing to do is buy an APEXi AFC for your car. Its a mod that you will eventually need later anyway so its a good investment.

Anyway .. just my 2cents

Luke

 

[Bad93ex]

OK in the VFAQ guide do they show the honeycomb you are supposed to take out?

Thanks for all the help guys.

 

[Kash]

keep in mind if you get the 255 you would also have to get a safc, unlike with the 190.

 

[Syndicate13]

No, with a 255 you'll probably need an FPR since it overruns the stock regulator at idle and part throttle. Once under boost you could see in excess of 65+ psi of fuel pressure, depending on boost levels.

 

[4G63 GST]

When he gets exhaust and an intercooler and other stuff he'll need an AFC anyway if he wants to be able to tune his car and have it run good, a 255 will also be needed for sufficient fuel. I think id rather buy it in the first place than have to buy it then upgrade .. but thats just me.

Vfaq might have it but that sites so d@mn old that crap never works on it .. most of the links are dead.. in anycase when doing the honey comb just make sure you only remove the one in the back .. not the one directly on the MAS .. otherwise your screwed.. id just look around there are alot of tech articles on it with pictures and stuff. Personally i havent done it yet but i have heard good and bad things about it (problems with idle and other things) it really just depends on your car.

Luke

 

[Bad93ex]

I just removed the lower honeycomb and it helped but it still feels like it is losing power up top around 5k~redline. There is a little more throttle response definitely though. I think I will give her a rest tonight and replace the fuel filter and see if that helps out with the problem of power loss.

Any thoughts/comments?

EDIT: I just turned the boost down to 12 psi but it spikes to 14 and there is no loss of power feel up top.

Is it possible that my Gauge could be off and I was trying to push 20 psi instead? It reads 8~9 pounds of vacuum at idle and only goes up to 0 psi in first but then reaches higher psi readings in 2nd, 3rd, 4th, and 5th.

 

[4G63 GST]

Your guage could be screwing you up then ..

TEST

In 2nd gear let off the gas and see your vacuum.. most cars with good compression will pull between 19-22 lbs of vacuum in coasting a mid 2nd gear. If its less than that you prolly got a leak in which case you could be over boosting your engine .. and will soon blow something up if you dont fix it.

Luke

 

[Bad93ex]

The thing is that my gauge is tapped into the line going from the turbo outlet to the boost controller.

I am going to make myself a boost leak tester here pretty soon and check for leaks. There has to be some.

 

[psychlow]

Yes, check for boost leaks.
If you're only running 14PSI, you should not be hitting fuel cut, even on cold nights.

 

[midnght]

I just removed the lower honeycomb and it helped but it still feels like it is losing power up top around 5k~redline. .

You are probly losing power because you are not tuning the fuel mixtures up high. The 4G63 in its stock state peaks out at about 5-6.5k (depending on turbo) until you get a set of nice cams. There are more things than cams, you need first. Get yourself some 550's unless you plan on going bigger than a 16G/T28 and a S-AFC (I or II). Work on that fuel cut problem and then get yourself out to the track to work on your 60'. You're AWD and should be pulling 2.0-to-lower at the track.

I suggest taking it to a dyno once your car is running without the getting fuel cut. Get a reading on what your car is doing and how much power and were you are making it.


Def. do a boost leak check. You will survive this one.

 

[4G63 GST]

550's really arent as necessary as a new fuel filter and a new pump. My friends pulling 12.8's on a 2g with the stock 450's and stock intercooler on his AWD. (w/ a BIG 16G i might add)

More than likely you have a boost leak to your gauge which is making you turn it up way past whats safe. You can distinctly tell when your running too much on a stock set up .. depending on how your BOV is set up (venting/or not) it will be extremely louder at 17-20+ psi than lower .. the sound that comes from that kinda pressure is alot sweeter sounding IMO but also is a great way to know immediatly that your too high (depending on your setup). But as i mentioned before .. if you let off the gas in ANY gear and your cars not pulling AT LEAST 19lbs of vacuum you prolly have a leak. thats how i found mine .. cause you should be close to 20lbs when your foots off the gas and your coasting.. like i said best way to test is to be at like 3500 rpm in a gear (not flooring just normal daily driving) .. and just let completly off the gas .. if your not pully close to 20 you prolly got problems.

Luke

 

[4G63 GST]

midnight .. 3 things

#1 .. AWD gearing in a FWD ?? why .. ?? The only good thing about a FWD is the gearing .. for highway runs and rolls ..

#2 .. 22psi!?!?! on a BONE STOCK 7-BOLT!!! .. your engines gonna explode and im gonna laugh .. :laugh: thats the stupidest thing ever .. your t-25 is prolly got so much shaft play and your gonna fry everything ..

#3 .. 89 Octane .. you really arent too bright are you .. your only supposed to use 93 in a DSM .. you must really want your 2g to blow up

That is all .. i just saw that when i posted last and i couldnt believe it .. thats the most ignorant sig ive seen

Luke

 

[Aikouka]

#2 .. 22psi!?!?! on a BONE STOCK 7-BOLT!!! .. your engines gonna explode and im gonna laugh .. :laugh: thats the stupidest thing ever .. your t-25 is prolly got so much shaft play and your gonna fry everything ..

Actually, he has a "SBR 20G (tdo6h)" like it says in his profile.

 

[TheTSiGuy]

I just removed the lower honeycomb and it helped but it still feels like it is losing power up top around 5k~redline. There is a little more throttle response definitely though. I think I will give her a rest tonight and replace the fuel filter and see if that helps out with the problem of power loss.

Any thoughts/comments?

EDIT: I just turned the boost down to 12 psi but it spikes to 14 and there is no loss of power feel up top.

Is it possible that my Gauge could be off and I was trying to push 20 psi instead? It reads 8~9 pounds of vacuum at idle and only goes up to 0 psi in first but then reaches higher psi readings in 2nd, 3rd, 4th, and 5th.

Anyone think that he may have been turning the boost too high and been recording some knock?

The ECU sees too many counts of knock and will mess your timing up...definitely slows the car down

 

[got_no_sol]

midnight .. 3 things

#1 .. AWD gearing in a FWD ?? why .. ?? The only good thing about a FWD is the gearing .. for highway runs and rolls ..

#2 .. 22psi!?!?! on a BONE STOCK 7-BOLT!!! .. your engines gonna explode and im gonna laugh .. :laugh: thats the stupidest thing ever .. your t-25 is prolly got so much shaft play and your gonna fry everything ..

#3 .. 89 Octane .. you really arent too bright are you .. your only supposed to use 93 in a DSM .. you must really want your 2g to blow up

That is all .. i just saw that when i posted last and i couldnt believe it .. thats the most ignorant sig ive seen

Luke

When he says bone stock he means the engine has never been opened. And from what I remember when I asked him about it, he accidently put the 89 in there (or 89 was the only thing available)....

 

[Syndicate13]

midnight .. 3 things

#1 .. AWD gearing in a FWD ?? why .. ?? The only good thing about a FWD is the gearing .. for highway runs and rolls ..

#2 .. 22psi!?!?! on a BONE STOCK 7-BOLT!!! .. your engines gonna explode and im gonna laugh .. :laugh: thats the stupidest thing ever .. your t-25 is prolly got so much shaft play and your gonna fry everything ..

#3 .. 89 Octane .. you really arent too bright are you .. your only supposed to use 93 in a DSM .. you must really want your 2g to blow up

That is all .. i just saw that when i posted last and i couldnt believe it .. thats the most ignorant sig ive seen

Luke

And you sir get the award for the most ignorant post ever!!!!

#1 Midnght has AWD gearing in his car because I believe his FWD tranny went out and he replaced it with what he could find, hafta check with him on this one though but I think that's what happened.

#2 Yes 22psi, on a BONE stock 7 bolt motor, meaning from the TB to the Exhaust mani, nothing has been touched. He also has 660's, a 255, and a 20g. Meaning he has the fuel and turbo to necessary to run 22 psi. My friend here ran 26 on a bone stock 6 bolt, is he retarded? No, he ran an 11.3 at 120.

#3 Yes, 89 octane also. Look at the dyno numbers, over 300 horse and torque on 89 octane? I'd say that's an accomplishment not ignorance. He has already said that 89 was what was in the tank since he couldn't get premium and he wasn't supposed to dyno that day, it just happened and he still put down some nice numbers.

So in the end here what do we have? Midnght knows his shit and you came out looking like a tool since you did what most do, come here and start talking crap before actually taking the time to research and then post. A simple look at Midnght's profile would've shown you everything I just told you, but you couldn't click that reply button fast enough when you found you had the chance to try and belittle someone else. So next time, think before you open your internet mouth. Thanks and have a great day!!

 

[Bad93ex]

My BOV was extremely loud after I turned the boost up so I probably am running way too much boost.

I am going to have to place my boost gauge tap on the manifold vacuum line in order to get a good vacuum/boost reading.

 

[4G63 GST]

660's, a 255, and a 20g.

isnt bone stock .. sorry i didnt look in his profile .. but BONE STOCK means nothing is on the car which is what i interpreted. MY BAD! .. in any case the awd gearing is confusing to me .. i think id put the FWD back in and do it right .. but like as was stated its not my car so im sorry i said anything .. but as anyone would probably agree 89 octane isnt an achievement .. thats just not smart .. 93 is the safest bet and is also what the car is required to have. whats to be proud about running a dyno run on the wrong gas for your car? but i guess if thats all he had access too thats his decision.

In anycase since i got attacked from someone to whom i wasnt even talking im sorry for not reading his profile .. but his sig is definatly misleading .. BONE STOCK is different then .. turbo, fuel pump, injecters .. bla bla bla .. i could say that too Oh my engine in my car is bone stock .. but its not bone stock .. because if it was and i was sayin that stuff any of you would have commented the same . I guess if your car doesnt have rods pistons, ect its bone stock now?

Not trying to make enemies on the site jut pointed out what turned out to be a misleading sig ..

Bad93ex

yeah make sure you check your lines for leaks and such .. sounds like your problem.

Luke

 

[DevilSperm]

I only read half of this thread but ill throw some comments in here...i would advise AGAINST taking out your honeycombs...i tried that once and my car ran like ass and i had to conjur up a way to put it back on....things i suggest before going out and spending a bunch of money on a bunch of parts you dont need are:

1) do a boost leak test....lots of times you will find pin holes in the upper neck of your stock intercooler and this can cause your fuel cut and i would almost bet money if yours is still stock, its bad... JB weld is your friend

2) make sure all your regular stuff is good, plugs, wires, fuel filter and so on...a bad fuel filter can make your car run like total shit and a lot of people over look it when they are diagnosing. A fuel pump rewire wouldnt hurt and taking out your stock fog light(s) will help airflow to your sidemount

 

[4G63 GST]

would advise AGAINST taking out your honeycombs...i tried that once and my car ran like ass and i had to conjur up a way to put it back on....

i agree .. but really it depends on the car .. some will run good some wont .. is it worth the chance to you ? thats what you have to decide.

Luke

 

[Syndicate13]

And again, he says BONE STOCK 7 BOLT, meaning the motor, meaning he has no aftermarket internals like pistons, rods, hardware, cams, valvetrain, or anything like that. And as far as making over 300 whp on 89 octane, I consider that an achievement. If he's already making over 300 on crappy gas then how much do you think he'll make with some good stuff in there?

 

[4G63 GST]

This is rediculous .. im tired of hearing about this stupid "stock" 300 hp on 89 7-bolt. Good for him .. stock means stock .. maybe the block/head is stock but the car isnt .. if you think the cars so amazing go ahead and tell him that .. cause i dont think 300 hp is anything worth arguing over and i refuse to co-flame bad93ex's thread any farther ..

Luke