Zach's Legacy FrankenSTIn TW

[SubaruNation]

I'm getting the car tuned this weekend!! WOOO!!!!

so today and tommorrow i will be tidying wires in my engine bay and making sure i have good/enough oil and testing for boost leaks.

for the boost part of it i think i will have to fab a new inlet as a rubber hose going inside a silicon coupler right before the turbo really isnt legit at all.

i'm thinking we will tune her for boost at 15psi, because my internals only allow for like 18.. and i would rather be safe than sorry.

any other ideas/recommendations and stuff i need to do from people who have been tuned before, i would love to hear!

ill add progress when it happens!

[cj91legss]

DYNO!

[SubaruNation]

Evidently having the exhaust extended and rebuilt right now since it was not in very good shape

[93forestpearl]

PCV end caps with a valve stem work great for boost leak testing.



Be careful about what is connected to pressure when you leak test. Many people have blown cam seals out doing that. Make sure your crankcase is not pressurized when you do it.

[SubaruNation]

So I pressure tested today and found it rather pointless as all my tubing is metal...

dan I tested pressure with the car off so hopefully that was ok....

I want to put pics soon, I spent the day cleaning the outside and inside and its sparkeling so mean.

Tuning is heppening tomorrow after euro Sunday and I'm pumped!

We will sync the ignition and fix fuel and tune for boost. I'm stoked!

[kimokalihi]

How much pressure do you run to test your system?

[SubaruNation]

Just what I'm getting tuned at. So like 15lbs

[SubaruNation]

Tuning Completed!

i got a ton of pics and i want to take a vid too, ill upload it here in a bit!!

its soooooooooOOOOOOOOOOOOOOOOOO MEAN!!!! aaahhhh!!!

Its FINALLY realizing its potential.

More to come!

[SubaruNation]

so i guess i will organize this from the top,

Before getting tuned, i helped one of my friends put his UK-spec b SWRT legacy seats in his car.. they look like this:


they look bomb sitting in his GC8, so this is what we did with one of his old ones



then i got air:


then i went on the website i posed on like page 10 of my journal here and made a boost leak tester with the following stuff from home depot. that cost me about $50.



Before i got tuned yesterday, we met at our EuroSunday meet and kicked it for a bit, these are some shots from it.

^^ 6 piston brakes with rotors bigger than wowww.


RX7 w/ LS1 engine.




then we started tuning:


updating from .11 to .19

Magic in progress!!


then we went driving, which involved a ton of pulls at 100% to perfect timing and fuel in all gears, and about 30 min of me just driving normal around town so i will get bomb gas mileage compared to my 11mpg average over the last few months..

to finish the day, we set up my boost controller so that boost is now under control, and stops 16.7 and wastegate 12.x depending on which channel i use.



while he was working on fuel i stopped to take some shots here also:









In short, its a whole new car hahaha. there are now no holes in my fuel map and there isnt any shuddering at low rpms and it just drives exactly like it is meant to. I'm pumped that i get to JUST DRIVE for awhile and not worry about anything but enjoying my car.

[93forestpearl]

11 mpg What were your afr's? Holy rich engine batman. If they were below 13:1 at light load you probably shouldn't have been driving the car.




Its good you got it sorted out now. Now find a dyno day and strap that baby on some rollers.

[SubaruNation]

^^ Lol i didnt really have a choice. its better to be rich than be lean, and i changed the oil a couple of times over the same amount of time before we tuned it to make sure no fuel got into the oil. My AFRs fluxed from 10-14 hahaha but im all set now so no worries.

I've been told that in truth dyno-ing the car will not get me more power or anything because the dyno is more meant for efficiency... in that does the car perform the same the second and third time on the pulls.

I would love to get some #'s though and thats where the dyno comes in ... maybe this fall at subifest or WCSS or something .

[93forestpearl]

I've been told that in truth dyno-ing the car will not get me more power or anything because the dyno is more meant for efficiency... in that does the car perform the same the second and third time on the pulls.

A dyno is a tuning tool that is meant to show the results of changes made to your calibration; changes that cannot be measured by the butt dyno. There is no possible way to know if changes to your timing advance had a positive result, negative, or no result at all. Granted, many people that tune know where-about things should be, but there is no way to know what is optimal on the road.

Adding timing will often show gains, but the gains are small enough that road tuning cannot possibly find what is optimal. Power will often be gained as timing is advanced, but the gains will plateau at a certain amount of advance. The only way to find that plateau is with a dynamometer. Anyone who tells you otherwise doesn't know what they are talking about.

It is a similar with fuel. You can get close on the road, but there is no way to find mean best torque on the road. Not possible.


Don't get me wrong, road tuning has its place and should be done on every car. However, these changes should be backed up on a dyno, and rechecked on the road to ensure consistency.

There are no two ways about it.

[SubaruNation]

you sir are correct.

i was just saying that since i dont have an AWD dyno anywhere near me that yeah i have no way of statistically measuring it, although my butt dyno is really accurate.

the only defense to your point, and what i was trying to get at earlier...albeit with less words haha was that all dynos read different and the pulls are not always consistent. from what i understand this is more emphasized tword mustang dynos rather than the dynometer ones because they are higher quality.


SO i will use my economist perspective and say "It depends"

[Legacy777]

the only defense to your point, and what i was trying to get at earlier...albeit with less words haha was that all dynos read different and the pulls are not always consistent. from what i understand this is more emphasized tword mustang dynos rather than the dynometer ones because they are higher quality.


SO i will use my economist perspective and say "It depends"

This really doesn't have much bearing on the tuning of a car on a dyno. You tune based on a change in power, not what the actual numbers are. So whether different dynos read differently has no real bearing on tuning. As for consistency, you will see some differences between runs, but that's typically not the dyno's fault, but rather changes in intake air temps and other ambient/environmental conditions.

[SubaruNation]

Josh you are correct..

but its suitable when there is no dyno in less than 10hrs of me

i would like to throw it on one hopefully this fall if i can find a dyno day somewhere nearby.

in the mean time i will drive my car and be ignorant LOL.

[Fkyx]

That's what I'm talking about!

[93forestpearl]

Gotcha. I didn't realize an AWD dyno was so far out of reach. I suppose the south east would be like that. You should have a Camaro, lol

Any tune is better than no tune.

[Legacy777]

There isn't one in Atlanta area? There seems to be a pretty decent Subaru following there. That or possibly up in the Carolinas.....

You can always come to Texas

[SubaruNation]

weird sorry about my late response, im not getting email notifications for my thread


one of my friends, has this ipod app that utilizes the g-sensor inside the ipod so that it will estimate your horsepower and a bunch of other cool stuff. we are going to test it out this week i hope and see what that says at least. i am excited to see how accurate it is.

in the meantime i need to purchase and wire in a knock sensor and intake air sensor if anyone knows of good cheap ones i would love more info.

i am purchasing the knock sensor out of a newer WRX, what should i look for in an air intake sensor?

[Mattheww044]

Damn, good to hear things are working out for you Zach! Who tuned the car?

[SubaruNation]

Eric larson from brewed motorsport. http://brewedmotorsports.com/

Matt can you check and see if there is a AWD dyno in spokane? do you know if there is?

thx man,

[SubaruNation]

ripped off half my tint because it was bugging me, ordering the IAT and knock sensor stuff today!

woo!

[SubaruNation]

Rolled all four fenders and eliminated pinstripes.

[Mattheww044]

haha wow, im blind for not seeing who it was tuned by before asking. Anyways there certainly isn't any awd dynos in spokane unfortunately. Pretty sure the coast (Seattle or Portland) would be the closest.

Do you have a fender roller or did you do it manually?

[SubaruNation]

No worries!

heat gun and metal T-Ball bat technique to roll fenders

yeah i'm dyno-ing it this fall to get it all perfect, not sure where yet though but it'll be gangster!

most likely domtune north of seattle if he is available when im there.