DSMTalk Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum banner

I am getting me car tuned.... WHAT SHOULD I LOOK FOR

1.7K views 26 replies 16 participants last post by  Red93GSX  
#1 · (Edited)
I am getting my car tuned.... WHAT SHOULD I LOOK FOR

I have been piecing my car together for a while, and was ready to get it tuned. I dropped the car off to Adam at DEVO Tuning. I have never been down this tuning road before, so I am just wondering if I am doing everything right. Devo is very capable of making this car run right/fast, I just need to make sure I communicate my expectations to him. I dont know how up to date my profile is so I will just mention my mods here.

evo GT manifold (from turbochargers.com)
Small 16G
EVO 3 02 Housing.
Homemade 3" Downpipe
3" Test Pipe
Thermal R&D Catback.

SAFC-II
walboro 255 lph
AMS 680 CC injectors
2G MAS

extreme intercoolers 7" fmic kit with 2.5 pipes, t-bolt clamps, couplers, etc.
kris144 intake pipe
Autometer Boost & EGT Gauge
MBC
polyurethane motor mounts
vacum line reduction
logger

QUESTION 1 :: THE AUTO ECU DILLEMA?

I have a '92 TSI AWD 5spd. When I bought my car the guy mentioned that he changed the ECU because the old one went bad. He said he replaced it with an automatic ECU, and that the car is probably running a little rich. Before I dropped my car off to get tuned, I tested this theory out ....

390 cc / 680 cc -1 = 43% (Injector Compensation for an AUTO ECU)
43% - 15% = 28% (Compensation for the 2G MAS)

So I set my off boost settings at 28%, I figured that if the car knocks its a manual ECU and if it doesn't than its a AUTO ECU. The car DID NOT knock at all. So i fgured this meant I was right on the ball.

I dropped off my car to get tuned and have some other things looked at, I looked at the low setting off-boost and they were all like 11% -13% etc? How can this be? I drove the car around felt great and the rpm band was way smoother than when I had orginally gave it to him. I started asking him about the A/F ratio and he said it was a conservative mid-11.

QUESTION 2 :: THE BOOST
When i called him he said that the boost was a little to high at 22 pounds so he turned it down to 18. I went to go see him and explained to him that I wanted to see 20+ on pump gas. He said that he has seen people run higher boost but it doesnt last very long. I asked him what he thinks is causing me to not go higher than 18, and he said its just pump gas. He said you can go higher on race gas, he even mentioned a figure of 25-26 pounds.

Is this true? I am looking for conservative results with reliable and repeatable results. But isn't 18 pounds on a small 16G a little too conservative? I took the car out after he had tuned and saw the boost gauge get up to 20lbs. Whether he set it to 18 pounds and it creeped to 20 or whatever, If its creeping to 20 I think it should be able to run it effeciently. Your thoughts?

Because their are two settings/MAPS/tunes on the SAFC-II I told him can I we use one for pump gas and the other for RACE GAS. He said "that with a MAF the more air it sees, the richer its gonna run, and thats something thats good." Basically he said the street tune that I have is suffiecient. Is this true? Should I ask him for a race gas tune? does it differ that much?

QUESTION 3 :: THE evo 3 O2 Housing

Clearly I didn't do enough research on this part BEFORE I bought it. When I put it on, the downpipe began to hit the transfercase. I brought this up to the tuner, and he said that he moved it out of the way a little. i told him what happens if the exhaust starts to heat up the transfercase, burns the oil inside the case, and it locks up? Is this a possibility? He said no, its not that serious. Your thoughts?

more questions as I remember them.
 
#7 ·
Hey man I agree with you..IT SUCKS to only be able to run 18lbs after paying 800+ for a FMIC, 300+ for a turbo, injectors, fuel pump, etc...it comes down to thousands only for 18lbs on the street?? I run 15lbs on my stocker on 93 pump octane w/out any serious knock.(you did as well at one time)


Its got to be either two things.

1. Maybe we are just so spoiled by our cars that the number 18 just seems weak. In actuality, 18lbs is a lot of boost. Dont get me wrong, its not over the top redicously huge, but think about it, the 18lbs you are looking at is NOT on a stock turbo either. Its funny because while driving yesterday, Syed pointed out an M3, we both agreed its a nice car..but when it came down to the hustle of the car, acceleration, etc...we said its 'aright'. Here we are, with our $2000 beaters calling a $40k plus car 'aright' in terms of straightline performance... :confused:

2. The only other thing that you can do is run your 18lbs and see what you run at the track. If that 18lbs gets you a solid 12 sec slip you got no reason to be complaining.. :D

Hey bro sorry I couldn't get to finish the phone call..we were at the popo station and I got busy with other stuff...Ill give you a call back though..:)

Salam,
Nomie
 
#9 ·
I had a question for the guy at the shop. I was asking him about when I am boost leak testing the car. I told him that I put the coupler on the front of the turbo's intake, and when i add compressed air i can feel the pressure tester expanding. When i run to the boost gauge to see what it is at, its coming down from 20 lbs.

I asked him is this how it should be, one of his customers responded that it should hold at least 20 pounds, without coming down. I asked Adam (the tuner) did you boost leak test the car. He replies No. I asked him why not? He says I only do what people ask me to do, when I start doing other things and people haveto pay for it they complain.

WHO THE HELL TUNES A CAR WITHOUT BOOST LEAK TESTING IT? I mean whats the point.

I am not after being able to tell people I run 20+ pounds, and being a keyboard horsepower warrior. Its that I have some money under the hood of this car in mods. Close to a couple thousand. ANd I want the most performance for my money.

I am suprised nobody had anything to say about this thread. I was hoping to see some confirmation about the compensation. I mean people run 550 with a 16g, and I am using 680's. Injectors that are almost 20% bigger and the compensation is at 10-13% on the AFC. This story doesnt add up.

Thanks for reading.
 
#10 ·
with my small 16g i was running aroudn the same boost as you(give or take a fewpsi), and i found that to be my limit without gettin some knock, this was on 91 pump with 550cc's, and huge fmic, i was tuning with greddy emanage.

now im running a 50trim with 780cc injectors, and have also found that about 18psi is my limit on pump gas :(

also it is not the tuners obligation to do a boost leak test for you. who the hell takes there car to get tuned with boost leaks???, you should of done a boost leak test before you took it to him.

maybe you should look into water/alky injection to get more boost out pump gas,im looking to get my car tuned by a pro in a few months, once i get my boost leaks taken care of and have my new clutch/flywheel/ tranny in.
 
#11 ·
ZishanMalik said:
I had a question for the guy at the shop. I was asking him about when I am boost leak testing the car. I told him that I put the coupler on the front of the turbo's intake, and when i add compressed air i can feel the pressure tester expanding. When i run to the boost gauge to see what it is at, its coming down from 20 lbs.

I asked him is this how it should be, one of his customers responded that it should hold at least 20 pounds, without coming down. I asked Adam (the tuner) did you boost leak test the car. He replies No. I asked him why not? He says I only do what people ask me to do, when I start doing other things and people haveto pay for it they complain.

WHO THE HELL TUNES A CAR WITHOUT BOOST LEAK TESTING IT? I mean whats the point.

I am not after being able to tell people I run 20+ pounds, and being a keyboard horsepower warrior. Its that I have some money under the hood of this car in mods. Close to a couple thousand. ANd I want the most performance for my money.

I am suprised nobody had anything to say about this thread. I was hoping to see some confirmation about the compensation. I mean people run 550 with a 16g, and I am using 680's. Injectors that are almost 20% bigger and the compensation is at 10-13% on the AFC. This story doesnt add up.

Thanks for reading.

This is the reason why I dont like to tune. When you go to get the car tuned it should be ready,boost leaks,plugs,oil,water,etc. if you bring your car for a tune thats what you get. Did you you ask the guy if he changed your oil?
 
#12 ·
Starion said:
This is the reason why I dont like to tune. When you go to get the car tuned it should be ready,boost leaks,plugs,oil,water,etc. if you bring your car for a tune thats what you get. Did you you ask the guy if he changed your oil?

Exactly what this guy said...

Its not the tuners obligation to have your car ready for a dyno..Its YOUR job to prep your car to make sure your car isnt going to take a shit when its getting dynoed!!! ;)

Unless you make some arrangements with the guy who is going to dyno your car to check for leaks,plugs,wires, etc.... it's going to cost you.

I dont understand...if you have thousands under the hood in performance mods like you claimed earlier...how the hell dont you know how to check for boost leaks. Or did you have a shop put the mods in for you:confused:
 
#13 ·
I think you guys misunderstood him...

Firstly, he mentioned in his FIRST post that..
I have never been down this tuning road before, so I am just wondering if I am doing everything right.
He sorta had an idea of what he wanted, but he wasn't sure how he wanted to get his results.

Secondly, he DID in fact check for boost leaks..I supplied him the pressure tester.. :D
I had a question for the guy at the shop. I was asking him about when I am boost leak testing the car. I told him that I put the coupler on the front of the turbo's intake, and when i add compressed air i can feel the pressure tester expanding. When i run to the boost gauge to see what it is at, its coming down from 20 lbs.
So, he did his part, he peiced it together, get new couplers, t-bolt clamps, gaskets wherever we thought it was necessary. Heck, this guy even changed his injector o-rings because they were a source of a boost leak!

It was not out of negligence that he took the car over there. He did everything he could think of, and then he took it there. Why am I supporting him? Because I was there in some parts of the process.. :D

So, anyways, here is my question as well. When you pressure test the intake system, how long should the boost stay at a certain psi? Or is it normal for it to drop down?

Nomie
 
#16 ·
NOMIEZVR4 said:
I think you guys misunderstood him...

Firstly, he mentioned in his FIRST post that..


He sorta had an idea of what he wanted, but he wasn't sure how he wanted to get his results.

Secondly, he DID in fact check for boost leaks..I supplied him the pressure tester.. :D


So, he did his part, he peiced it together, get new couplers, t-bolt clamps, gaskets wherever we thought it was necessary. Heck, this guy even changed his injector o-rings because they were a source of a boost leak!

It was not out of negligence that he took the car over there. He did everything he could think of, and then he took it there. Why am I supporting him? Because I was there in some parts of the process.. :D

So, anyways, here is my question as well. When you pressure test the intake system, how long should the boost stay at a certain psi? Or is it normal for it to drop down?

Nomie
Okay...I hadnt read the thread thoroughly...I apologize... :eek:

Yes, the pressure is supposed to decline when you disconnect the compressed air.
 
#17 ·
Aright, now that we have that settled, another question...:D Im takin over his thread :D

Adam told him you shouldn't run over 18lbs on pump gas...the reasoning? 'It wont last'

What wont last? I dunno..anyone have an idea?

Now, say for example, Zishan runs 21lbs of boost daily with NO detonation. Whats wrong with that? Whats not going to last? Also, can a small 16g run 26lbs of boost and still make power!?!
I thought they were limited to around 22psi...at least thats where they are efficient till..or so I heard..there are a lot of misconceptions that float around..Ive noticed that lately when you do things yourself..:)

Nomie
 
#21 ·
kanda98 said:
I run 22 psi daily on a well tuned 16g. I dont see why you cant run 21 psi, as long as youre not detonating. Anything over 23psi, I would use a higher octane than 93 IMO.

I agree too. I think 20-21 psi. is conservative, reliable and repeatable.
NOMIEZVR4 said:
Adam told him you shouldn't run over 18lbs on pump gas...the reasoning? 'It wont last'

What wont last? I dunno..anyone have an idea?
I asked him why I couldnt go above 18 psi and he said "its detonating" I asked him why do you think its detonating, he says its the gas. It's on 93 octane. I told him I was looking for 20+ and he said that he's seen it done before but it doesnt last. Meaning people are unconciosuly detonating because of their greed with the boost and are cooking their cars.

lexmark said:
How did your car come out after adem worked on it.
Adam isnt done with it yet, the car is still in his hands. I drove it after he tuned it and it felt good. Smoother across the entire powerband. I think the problem here is not incomptency just communication.

He is still working on the car and depending on how this all works out I would consider recommending him. All give a feedback after its all done.
 
#23 ·
I would be somewhat angry if your only running 18 psi and have knock problems. im running that and hopefully more on just the 14b and pump gas. i have a feelin that 20psi is more than doable for you. if he has you set for 18psi than turn it up to 20 psi and see what happens. if you start to knock add a lil bit more fuel. if the knocking doesnt go away than you know the guy was legit and that you truthfully just cant run it.
 
#24 ·
Be glad you can even run 18 psi without the ecu pulling timing.

We often see knock count problems in 1gs as low as 14 psi. They aren't really detonating, but the ecu often sees some kind of noise pattern in the mechanical noise of the motor that it doesn't like and is programmed to think is detonation. The knock sensor setup in a 1g is utterly stupid and very inconsistant.

The answer to it is simple and one that 1g owners often do not like to hear..........

AEM EMS with a 2g knock sensor!
 
#25 ·
NOMIEZVR4 said:
Here we are, with our $2000 beaters calling a $40k plus car 'aright' in terms of straightline performance... :confused:
I think this is totally fallacious thinking. People dont buy m3s to race in a straight line. most buy it because:

1. it looks amazing
2. luxury luxury luxury
3. amazing handling
4. relatively quick.
5. no knock issues (sorry had to through that in :p)

You know i like DSMs, but its no m3 by any means. An m3 imo is way more fun to drive than a fwd dsm is. There is more to a car than 35 mph roll downs. :D
 
#26 ·
firedc5 said:
I think this is totally fallacious thinking. People dont buy m3s to race in a straight line. most buy it because:

1. it looks amazing
2. luxury luxury luxury
3. amazing handling
4. relatively quick.
5. no knock issues (sorry had to through that in :p)

:D
Haha, you mean taking college educated women out on dates in a car that smells like raw fuel because of no cat, with 272 cams and no balance shafts keeps the seat shaken is not a turn on for her??

Owe yeah, and when you do a mild 1 gear pull going straight, you hear from her “please don’t kill us”.


Haha, sometimes that second NICE ride could be a good thing. =)