13g to mhi small 16g what boost

[evo9mrtt]

Over the last three weeks iv done a few mods to my auto Dsm. Including short route front mount, machv hard intake pipe, Evo 8 maf, fic 650cc injectors, Walbro 255 pump, 2g exhaust mani, tubular recirc o2 housing, and a EPROM manual ecu with key diver chip that's burned for the injectors, pump, maf, and stock boost guage to read knock. Still have the stock exhaust also.

Now my 13g is choking due to the increased airflow and is getting tired. I have a real mhi small 16g lying around I would like to put on. My question is this, what boost level could I run, safely, with this setup. My buddy had almost this exact setup and was running 20psi and had 0 issues. Now I know every car is different. But I figure if I watch the knock, and boost I should be ok. Any input? Or anyone had this setup done and have good results? Trying to get the car ready for the kbpi car show! Thanks guys/gals!

 

[91stocker]

You have a logger and a wideband right? Start turning it up and watch your logs. No one can give you an exact number.

 

[bastarddsm]

Watch the knock and you should be just fine. Keydiver's chips were pretty good. Just make sure the rest of your car is good and boost away!

 

[evo9mrtt]

Unfortunately I do not have a way to log :-/ but my buddy does have a wideband that you hook up at the exhaust were going to use. I already did a boost leak test and everything is sealed nice and tight. Compression is 110 acrossed the board too. Stock 6 bolt. I also just put in brand new ngk wires and bpr7es plugs gapped at .025.

 

[PieEyedPiper]

Do 13g/auto manifolds have the same size collector as manual manifolds do?
You may need to port your stocker when you get around to putting on the s16g.

 

[Mischif]

110 compression? Did you do the test right, with the butterfly valve wide open? Also you can max out a 14b around 20psi so i imagine you should be able to get more with a 16g.

 

[TalonJohn94]

So you are going to borrow a WB to use? How is that going to work?

BTW, I just followed the link on these forums to get the AEM WB for like $175. Well worth it.

 

[FIBA M - EC17PSE]

So you are going to borrow a WB to use? How is that going to work?

BTW, I just followed the link on these forums to get the AEM WB for like $175. Well worth it.

Its going to work because he is using one that goes to the exhaust tip like what they use to dyno the car with.

 

[91stocker]

Do 13g/auto manifolds have the same size collector as manual manifolds do?
You may need to port your stocker when you get around to putting on the s16g.

Nope they are smaller all around. The runners,ports, and collector are all visibly smaller. I used to have a side by side pic, but i cant seem to find it. There's even less material to port. A 2g mani would probably be a good investment.

 

[evo9mrtt]

Exactly. The WB I'm using is the exact one they use on cars on dyno's that don't have a in cab WB. And I'm not running the stock, puny, 1g auto exhaust manifold anymore. The stock mani was cracked all over so me and my buddy put on a 2g mani he had lying around. Iv read you can use a palm pilot to log too. How would you do this? My buddy has a palm he said he'd let me use.

 

[LandSpeed-DSM]

I have a lightly ported, uncracked 2G manifold with an SS heat shield for sale.. PM me if interested.

 

[TalonJohn94]

Iv read you can use a palm pilot to log too. How would you do this? My buddy has a palm he said he'd let me use.

You have to buy the cable and software from Pocketlogger. It just plugs into diagnostic port and allows you to log on your Palm Pilot. Also, you can read check engine lights and check fuel injector and pump relays. Its what I use, but I do admit that it is old, clunky technology compared to DSMlink and ECMlink and even just the AEM UEGO Failsafe gauge.

But you can find used Pocketlogger cables pretty easily. Its definitely the cheapest datalogging if your on a budget and/or mostly stock.

 

[91stocker]

The op's mod list shows that he has link already. Why not log with that?

 

[NordicSaab]

Cheapest way to dial this in is to go to a dyno and tune from their their a/f.

Keep the car running rich and your safe. run anything leaner than 14-1 and your starting to risk it...

 

[Fourdoor]

That compression seems low, I wouldn't be running high boost if that compression check was properly done, until the reason is found and corrected.

Keith

 

[Mischif]

You can make a logger cable pretty quick and easy. You can get everything from radio shack for around 10 bucks. MMCD is free. It would be a wise investment to get a permanent wideband for the car, so you will know instantly when something starts to go wrong. You will catch it before it goes boom.

 

[TJCTalon]

What up Ryan!

The compression seems low because we are up at a mile high. My low miles stock 2g had 130 across the board, and 6 bolts have lower compression.

His compression is fine, strong motor

 

[evo9mrtt]

Hey Taran! How are the 2g's running? And I neglected to mention the mhi small 16g is coming off my 2g and being put on my 1g auto. Now here's my delema. The lines on my 13g are to small. But the oil lines on my 16g are off a 14b 1g. So I'm good as far as oil supply goes. But my question is will the water lines on the 16g for my 2g work on my 1g? The water lines on my 2g just use rubber hoses off the hard lines on the turbo, and i believe the ones on my 1g are tappered, threaded type water lines. And is the oil return the same on a 13g auto as it is a manual 14b 1g? You think they would be as they are both mhi turbo's of the same platform. Thanks again guys!

 

[Bud92gsx]

I have the 1g auto and manual side by side too..But I've posted the picture alot..Let me see if I can put it on photobucket so you can see the difference.

Op are you sure your going from a td04 13g to a td05 16g?

 

[evo9mrtt]

Ya I'm positivie I'm going from a 13g to a 16g. The 16g is coming off my 2g awd. I bought it brand new from a reputable shop. The turbo on my 1g auto is completely factory. Down to the tdo4 on the compressor housing

 

[rts91tsi]

There are a few freeware data logging programs available for 1gs. Here's a link to some of the more widely used programs, and also Palm emulator for your PC.

Downloads Area

I've also included a link to a document download below which gives a basic rundown to using the TMO logger( also applicable for other loggers) which gives basic tuning advice.

TMO Datalogger 101

 

[And_44]

With a 2g when you log to figure out if your boost is to high you need to watch your timing curve. When you get up in boost and your ECU sees knock it will start to pull timing. When you see that turn down the boost and try again until the timing curve rises and plateaus and stays constant.

Watching your wideband is good to do while figuring out the correct boost as well. But with that set up it should be ok.

Would reccomend ecmlink or some other type of engine management though besides a chip. I don't trust preprogrammed chips besides factory.

 

[evo9mrtt]

Ya I traded some parts I didn't need for the fmic, injectors, Evo 8 maf, maf pigtail, and socketed EPROM ecu with key diver chip so I'm not out any cash just yet. Over the winter I'm doing a g4cs 2.4l build with a 60-1 and ecmlink so the chip will do for now. I do have to figure out if my water lines on my s16g will even work on my 1g before I tear it off. Right now it's bolted to my 2g awd. I already have the oil lines though

The car is a 1992 tsi awd auto that the post is about.. 6bolt/4 bolt rear combo. The car I have in my profile is my 7 bolt 1995 2g awd manual.

 

[Bud92gsx]

Ahh see thats why I was asking..The car to the left< says 2g..I didn't realize you were talking about a 1g auto..So that makes sense now.

 

[And_44]

Oh, I didn't notice it being a 1g as well. So a lot of what I said previously doesn't matter. 1gs you usually soft tune to knock. Lower boost or richen it up when you see knock. 3 is ideal for maximum but if your really pushing it 5 is ok. When you see the knock can refer to the WB and see it it's lean or getting rich knock.