Opinions on what to do next...and capabilities

[Knapp870]

Hey everyone, I recently purchased this 91 Talon AWD TSI and have spent the last month investigating everything that had been done to it, and correcting a few mistakes that someone did on it. I'm somewhat limited on the history of the car, but its obviously someone knew what they were doing when they made the modifications. As you can see from my profile, I currently have 650cc injectors, believe 255 wally?, Aeromotive FPR, AEM wideband, big 16g turbo. I was wondering what I should do next? I recently got a manual boost controller and bumped it up to 17psi and am still in the 10ish range A/F ratio at WOT. I have been looking for some logging software as there is currently a palm III cable in the console. What do you think the current capabilities of the car are with the known upgrades hp and time wise? I was thinking doing the supra intercooler to retain AC and all power steering components or FMIC (though more challenging I know). Any thoughts and suggestions are appreciated!

 

[Dsmkauai]

You would benefit the most with something to tune more with, like ecmlink. Or figure out what your car has. Also a good fmic kit like ets, or vrsf that's made to fit your car will definelty help your setup.

 

[hotrodssnova]

Pull the ecu and pop the 4 philip head screws out of the sides and check your caps out. If they haven't been replaced, do that first. You might get lucky and have an eprom ecu. Take a picture of the board and post it up here. We will be able to tell if the caps have been replaced.

Edit...10's are too rich. You need a way to control fuel. Your ecu thinks it still has the stock injectors. Your going to wash your cylinders down if you keep driving it, unless it has been chipped, or you have a fuel controller.

 

[99ECLIPSEGSXDSM]

+1 on ECMlink if all of the maintenance os up to date

 

[Knapp870]

I did pop open the ECU and found that I do have an EPROM ECU, but it is not socketed This is good news for dsmlink but still a good chunk of change to drop. I didn't really pay attention to the capacitors though. Is that common? FMIC and ECMLink you think is all that is really missing to make some pretty decent numbers?

 

[eDeclpse92]

Sounds like you got a not ricer car, congrats! One thing I would do if your looking to push the boost up is to put in bigger injectors. Make sure like earlier posted to get something better to tune with. Any good tuning software and components needed are going to be pricey so that should come before anything else IMO. if you do buy injectors, you can buy them bigger than you need and just use less duty cycle so you don't have to keep purchasing injectors everytime you want to add boost or if you change to e85.

 

[dsm8989]

+1 on the dsm link

 

[Knapp870]

Pull the ecu and pop the 4 philip head screws out of the sides and check your caps out. If they haven't been replaced, do that first. You might get lucky and have an eprom ecu. Take a picture of the board and post it up here. We will be able to tell if the caps have been replaced.

Edit...10's are too rich. You need a way to control fuel. Your ecu thinks it still has the stock injectors. Your going to wash your cylinders down if you keep driving it, unless it has been chipped, or you have a fuel controller.

It runs 14.5-15 cruising around, it is at WOT that it drops down to 10s or 11s. I have an aeromotive fuel pressure regulator, but didn't think I had found sufficient evidence to make any adjustments other than upping the boost a little.

Sounds like you got a not ricer car, congrats! One thing I would do if your looking to push the boost up is to put in bigger injectors. Make sure like earlier posted to get something better to tune with. Any good tuning software and components needed are going to be pricey so that should come before anything else IMO. if you do buy injectors, you can buy them bigger than you need and just use less duty cycle so you don't have to keep purchasing injectors everytime you want to add boost or if you change to e85.

You don't think the 650's are large enough?

 

[rydereclipse]

The rule that I constantly read is....buy as big of an injector that you afford.

 

[hotrodssnova]

Link is pricey, but there's other options. Tuner pro, remote tuning, jackal, maft. Everything except the maft will require a socketed ecu. Do a good bit of reading before you decide.

 

[eDeclpse92]

+1 ^^^ They are large enough now for your set up, but if you turn the boost up much more, you might run out of room in your 650's. I bought 1050's and I have a 14b on 20psi with e85. I know 1050's are overkill but when I more up to a 20g or something bigger, I know I don't have to worry about selling my old ones and losing half the value that I spent on them and then buy larger ones for even more money. In the long run, it is better IMO. I spent around 900 to be able to tune my car on Jakel (bought everything new). Its not cheap, but if you can affor that, then spending 350 on some new injectors isn't really that big of a deal.

 

[NWHTanK]

Go with link first. Then see how it is doing but if ## are turning up the boost go with bigger injectors.

 

[WES_393]

Edit...10's are too rich. You need a way to control fuel. Your ecu thinks it still has the stock injectors. Your going to wash your cylinders down if you keep driving it, unless it has been chipped, or you have a fuel controller.

The stock tune runs in the low 10:1 range.

But I agree, you need some tuning power. I'm actually curious how your currently running 650cc injectors without any known compensation. I'd expect at least a 2g MAF sensor and/or a burnt EPROM chip in the ECU.

You don't think the 650's are large enough?

Depends on how much power your trying to make and what fuel you want to run. With pump gas, your 650's should be able to handle whatever the Big 16g can put out (at reasonable boost levels). But if you decide you want more power down the road then you could easily find yourself looking for something bigger.

However, since you already have the 650's I'd stick with them until you need something bigger. It's not like your looking to buy a set of 650's, you already own them. Get your money's worth.

 

[Knapp870]

The stock tune runs in the low 10:1 range.

But I agree, you need some tuning power. I'm actually curious how your currently running 650cc injectors without any known compensation. I'd expect at least a 2g MAF sensor and/or a burnt EPROM chip in the ECU.



Depends on how much power your trying to make and what fuel you want to run. With pump gas, your 650's should be able to handle whatever the Big 16g can put out (at reasonable boost levels). But if you decide you want more power down the road then you could easily find yourself looking for something bigger.

However, since you already have the 650's I'd stick with them until you need something bigger. It's not like your looking to buy a set of 650's, you already own them. Get your money's worth.

This is kind of my question as well. I am running a 2G MAF but it seems as if it is tuned to handle whatever the 16G will throw at it. I've had it creep up to 25+ psi on accident due to a resolved issue and it still never leaned out that I noticed. But, like I mentioned before the chip wasn't socketed. This is part of the problem with buying a previously modded car. What do we think the 650s will handle? 300hp?

 

[WES_393]

The 2g MAF reports about 20% less airflow to the ECU, which results in about 20% less fuel injected. That's usually only enough to get away with 550/560cc injectors. The ECU is capable of making up for the extra 100cc but your fuel trims are probably pretty high. That isn't something you want.

Also, the ECU doesn't have to be socketed in order to be modified. It's possible to solder a new chip onto the board in place of the stocker, it's just not a very good idea.

 

[boostback]

eDeclpse92 I noticed that you mentioned that you are running Jackal. I just bought a car that is all set up to use Jackal and am having trouble getting it set up myself thanks to the previous owner not saying anything about it being tuned. I would be greatful for any help your willing to give.

 

[jmfc15]

I would look into cams/port work to support even power over the rpm range. Anybody have info on the Palm cable? I'd love to tune and monitor from a handheld, but havent found many alternatives to the laptop.

 

[Knapp870]

There are lots of palm options. MMCD, pocketlogger are a couple I have been looking at.