Preliminary HX52 datalogs inside

[biglady112]

I did some preliminary tuning tonight. I ran out of fuel very fast with the 1150's. And the poor 38mm wastegate is creeping pretty bad. Hopefully when I can figure the fuel out, I can get the boost up, and the wastegate can control the boost a little better.

I did have one pull that based at 25psi and crept to 30. I only streamed that log and had to get out of it as the car was leaning out really bad. Like 13.5:1 before I knew it in third gear. Anything over 21psi in I cannot keep the car from going lean. When you guys see the datalog you will see what I mean. The car is pretty lazy, if you want to call it that, until 24psi. At 25psi it was INSANE. It was probably the most violent car I have ever been in up to this point. Hard to say where the car would have been acceleration wise, but I think 11's are attainable with even the big tranny. The mafraw hit 3500hz in that log. The one I am going to share peaks at 2800hz. The turbo has a serious threshold when it makes that turn to start making good power.

It is truly suprising how well it uses the boost and power. Even with the long gears. I think with the right tranny, some good boost and this car will be a terror in the quarter mile. I am currently looking for a tranny that will fit a dsm clutch.

Oh, and for some reason the 1.6L centerforce clutch is still holding strong. It is just totally wierd.

I was about to begin dialing in the boostest, but ran out of fuel basically at 16psi and just wanted to play a little more before I put the car away for the night. When I take the next step with the fuel system, I will dial the boostest in at that time.

Just thought I would share a fun night.

Steven

ps: put in 4000ft for the props for the boostest. I thought it went in, but did not. In order for my MAP sensor to read correctly, I have to run 4000ft rather than the 6000ft I am.

 

[e85_4g63]

Steven (if you don't mind me calling you by name), what turbine housing are you using? Is this just an "eBay" HX52 (not some special billet compressor wheeled piece)? I'm interested in something like this....

 

[Slippi84]

Steve I like reading your threads but why not just put all the info in a big thread and call it the HX52 1.6 build.

 

[biglady112]

Because not everything pertains to a build thread that I am posting.

 

[Maglin]

How are you running out of fuel at only 16 PSI with 1150's? Is it your fuel pump running out of steam? It would be so much nicer to have an electric fuel pressure sensor to datalog your fuel pressures to see if it's pump or injectors.

 

[biglady112]

I am running E85, stock fuel lines, regulator, filter, rail and tank. We figured I was out of pump. So I went home and redialed in the MAF. That seemed to make a pretty good difference. I was able get the car to 21psi creeping to 23psi. Still not where I want to be, but a start. This tapped the duty cycles out again.

The one and only reason I am out of fuel, is because I have not done a fuel pump rewire. So we came to the conclusion I am out of capacity because of that. The laptop died as I was ready to make my last pull with the "new" tune.

Unfortunately, the head gasket started to let go. So I am in the process of gathering a few parts and another cylinder head. The head measured straight yesterday, but I am trying to fine either a 1.8L or 2.0L head to throw on the car. So hopefully in the next week or two I will have a new head on, the fuel pump rewired, and try shooting for 30psi. I don't think I am going to go too crazy with the stock motor. I want to preserve it and retire it running.

Steven

 

[turbo addict]

I did some preliminary tuning tonight. I ran out of fuel very fast with the 1150's. And the poor 38mm wastegate is creeping pretty bad. Hopefully when I can figure the fuel out, I can get the boost up, and the wastegate can control the boost a little better.

I did have one pull that based at 25psi and crept to 30. I only streamed that log and had to get out of it as the car was leaning out really bad. Like 13.5:1 before I knew it in third gear. Anything over 21psi in I cannot keep the car from going lean. When you guys see the datalog you will see what I mean. The car is pretty lazy, if you want to call it that, until 24psi. At 25psi it was INSANE. It was probably the most violent car I have ever been in up to this point. Hard to say where the car would have been acceleration wise, but I think 11's are attainable with even the big tranny. The mafraw hit 3500hz in that log. The one I am going to share peaks at 2800hz. The turbo has a serious threshold when it makes that turn to start making good power.

It is truly suprising how well it uses the boost and power. Even with the long gears. I think with the right tranny, some good boost and this car will be a terror in the quarter mile. I am currently looking for a tranny that will fit a dsm clutch.


Oh, and for some reason the 1.6L centerforce clutch is still holding strong. It is just totally wierd.

I was about to begin dialing in the boostest, but ran out of fuel basically at 16psi and just wanted to play a little more before I put the car away for the night. When I take the next step with the fuel system, I will dial the boostest in at that time.

Just thought I would share a fun night.

Steven

ps: put in 4000ft for the props for the boostest. I thought it went in, but did not. In order for my MAP sensor to read correctly, I have to run 4000ft rather than the 6000ft I am.

What tranny are you using?

 

[biglady112]

A 90 Turbo FWD tranny with AWD fifth gear installed. And I am on a taller than stock tire. And with the 1.6L, everything is ever more pronounced.

 

[turbo addict]

If you are still on the 4g61 you may not want to swap to a 2.0 head. you will loose some compression.

I really loved my 1.6 liter. but I am running a e316g. you loose about 1000rpm of spool or maybe a little more, but it pulled great up top and was pretty fast for what it was. on a 2.0 now but only because I put a hole in my 1.6. due to stock rod bolts. so I have to back down the boost a little even on the 2.0 because the rod bolts are the same.

what size tires are you on? and where is your rpm in 5th at like 60 and 75 mph. I still have the mirage turbo tranny (gearing is a little different/shorter than the eclipse fwd tubo) but I want to put an awd 5th in for mpg's. with the 2.0 the car has soo much torque that I am not using and my mileage has gone down with the bigger motor. I want to get some of that back and with the e316g I get full boost (34-37psi)between 3100 and 3200rpm. so pulling the gear wont be a problem.

thanks

 

[biglady112]

I know all about that stuff man. This is my second CSM. I have had 6 mitsubishis over the past 8 years.

It will be availability as far as which head I go with.

You have to use the sonata 5th gear as the AWD gear is different. But the sonata gear uses the same ratio as the AWD(.666).

Mathmatically(speedo varified) I am at 63mph@2500. 76mph@3000.

 

[delta448]

Can't wait to see what happens with this car once you get everything sorted out, keep us posted!!

Oh, and for some reason the 1.6L centerforce clutch is still holding strong. It is just totally wierd.

If I were to guess, I'd have to attribute the impressive clutch durability to the much lower weight of the Colt. I'm sure this little beast hauls around at least 1000 lbs less mass than most AWDs. Have you done much towards further weight reduction? I think I remember you mentioning somewhere that this car would have a full interior?

Once you start pushing into the 30psi area with your tuning though, the gearing and the substantially increased power will surely get the best of that Centerforce.

 

[94Jettameowpsst]

Mathmatically(speedo varified) I am at 63mph@2500. 76mph@3000.

wow thats like 3kgtvr gearing damn

 

[twicks69]

Steve,

Get some real fuel lines on there with an in-line filter and an additional Walbro 255HP in-line fuel pump. You will get a hell of alot more out of the setup.

 

[biglady112]

The car is now a full time race car. It is rather empty inside. Its current wet weight is 2270. It was as low as 2140 before I put the new cooling system in. And that was with a 50lb water/air setup and a 15lb scattershield.

But the thing with the 1.6L centerforce(weaker than a ACT 2100) is that my friend spun it as about 300uncorrected horsepower in his mirage when he was down to 1960lbs. I am sure I am making at least that to the wheels. He is on a lowly bolt on 50 trim. This is the clutch that came off his car. No mods, just bolted it on and went.

Twicks, I am more than likely going to go with a parallel fuel pump system. I went with a aeromotive eliminator in my mirage. And it was just too much noise, hassle, weight and everything else. I have learned a bit more in the past three years than I did in my first five years with these cars. I had a full -12 to -10 feed and a -8 return with a fuel cell in the other car. It was just too much to deal with really. Simple and sweet this time.

Steven

 

[turbo addict]

I know all about that stuff man. This is my second CSM. I have had 6 mitsubishis over the past 8 years.

It will be availability as far as which head I go with.

You have to use the sonata 5th gear as the AWD gear is different. But the sonata gear uses the same ratio as the AWD(.666).

Mathmatically(speedo varified) I am at 63mph@2500. 76mph@3000.

what year sonata? thanks

 

[biglady112]

I have to ask my friend. It is another version of the KM210.

 

[biglady112]

I have an updated log in the first post. There is a new head and head gasket on the car now. Defintely flowing more and the car is super smooth now.

Ran out of battery power again right as I was about to turn the boost up.

It is currently around 20psi. Hitting 40lbs/min at 140* intake temps.

80-100 times are 2.1 so far.

Water temps had gotten to 115* on this last pull. I am going to install an exchanger in the next few weeks for street tuning. But still use ice for the track. The exchanger is going to be 8x8x1. Should help some. My friends does a good job with a 11x4x2, so this should be close.

 

[turbo addict]

Don't know if you already have a heat exchanger yet or not, but I have a 92-95 civic radiator (half size) on my mirage turbo, this with a 5 gallon fuel cell and a syty intercooler. With the e316g I run 37psi and my water never gets hardly above warm; pull after pull on interstate runs.

The civic rad. is mounted in back under the rear bumper with the stock civic fan and the surflo pump on the same circuit so when i flip the switch they both come on. it really works great. and you can get the rads. for next to nothing. (friend gave me mine).

 

[airmail96]

Hey big lady, any further updates ?

 

[biglady112]

I am waiting on a few more dollars to roll in. I need a new timing belt and tensioner. My tensioner is failiing and my belt is stretched. I am not willing to risk the new head just yet.

But I got the fuel pump rewired and got it mostly dialed in at 21psi. I think I am going to be out of wastegate spring very soon though. So I need a bigger spring, belt and tensioner.

But the car is running and running well. My 80-100 times are 1.9-2.0 seconds at 21psi. So she is moving good. I hope to have the boost up in the next week or two. I want to do some testing in a few weeks.

So be patient.

 

[biglady112]

Here is the update.

Got a few bugs worked out, and a lot of new parts. Ended up smoking the hand me down centerforce clutch from dragstr4g61t's mirage on this pull. It only lasted three tuning pulls above 21psi. It also only took three pulls to get the car 98% dialed in. I just need to pull a little more fuel out and the car is done for a while. Only thing I am going to do motor wise now is install the clutch next week and redo the water/air intercooler system. The current intercooler is far too small. I was optimistic when I installed it. It worked well for the 16g, but the HX52 is just way too much for this core. I have already found what I want to use. It is going to take a bit to save up, but I am excited. Going to be much different when it works out.

Oh, and I also maxed out my 1150 injectors as well according to this datalog. I can squeeze a little more, but I am just not sure I trust the stock 1.6L motor too much further. Keep in mind this is nothing more than a walbro 255, FIC 1150's and a fuel pump rewire. Literally everything is stock, and I mean everything otherwise. I will rework the fuel system in time, but this stocker motor is enjoying things for now. I would love to see what 35-45psi would feel like. I think it would be insane. 27-28 is fun, but even after the first full pull I was wanting more.

I think I can get to 30psi when it is all said and done and the stock 4G61 still be happy.

Here is the datalog. Keep in mind the clutch is slipping pretty bad. I don't expect too much more with the new clutch and fidanza flywheel though, just to hold it.

 

[turbo addict]

Just keep an eye on your rod bolts... :-(

 

[biglady112]

Rod bolts? I have never ever seen a car have problems with rob bolts. Not even my friend's daughter's car with aluminum rods.

This car is not revving high enough or making enough power to even worry.

 

[turbo addict]

Rod bolts? I have never ever seen a car have problems with rob bolts. Not even my friend's daughter's car with aluminum rods.

This car is not revving high enough or making enough power to even worry.

the stock rod bolt let go on my 4g61, at 37psi and a lil over 7000rpm. I was logging during the run and had zero knock until the bolt broke.