Jn2

iTrader: (1)

hope this works out you, i think i might make use of the tune u have now, but made to run on 34lbs injectors instead, cuz i knwo my turbo is way smaller than the one you have, and i will see boost in the early 3k range

lil_kano

why not? lol. Im geussing your tired of hearing that sound?

xCobalt05x

i dont want to hear any kind of woooshhh air sound, i want it to sound like the BOV on the eclipse from the first fast and furious.... High pitch ear ringing whistle with no sound of wooosh because it was dround out by the whistle

jimbos'ss

iTrader: (2)

tial bov FTW

lil_kano

My all time favorite is on this vid at about 0:50 the best one ever gauranteed!!

http://youtube.com/watch?v=J9CKLSjBzL8

Area47

pics or ban biotch!

xCobalt05x

thats what i have on my car right now and all i hear is woooshhhh. dont like it at all

lil_kano

So what do you have in mind then? Because they have a similar sound just with a different tones i geuss you could say.

xCobalt05x

Well, since this is the 5th time i had to fix the collector gasket, something isnt lining up right sooo..... I ordered a new shorty header and down pipe

watch the first fast and furious and listen to the eclipse when he revs it up and the BOV whistles pretty loud, im pretty sure its a typeS bov on it. if i can find a video of the sound ill post it

i found out what type of BOV it is... its a Greddy type-S

elecblue06

iTrader: (1)

he means the sneeze lol

http://www.youtube.com/watch?v=qkpBSe5DF0E

Jn2

iTrader: (1)

yeah the type s will do that gor you, i prefer the pssshhh sound better, that one sound to high pitched for me

06black

you know thats a no-no.

Jn2

iTrader: (1)

i just noticed this, how the hell did i miss it, i ran a 10.01 1/8 mile when i made my 15.7 run...weird, actually ur on a pretty big turbo, so you dot se boost till a bit later, im assuming ur time would be better than 15.7 seeing how youll be in full boost after the 1st gear

blu3_v1p3r

iTrader: (6)

he's also running on 5psi, and a shitty tune right now...

Jn2

iTrader: (1)

good point, i dont remember, but i though u said u'd be running 10psi until ur axels came in, why only run 5 now?

xCobalt05x

we ran on an 1/8th mile track not a 1/4 mile track... So i still dont know what i would have ran in the 1/4 mile... when i was bone stock my car ran a 16.7 in the 1/4 mile and keep in mind im not a manual cobalt... I did how ever convert my 10.008 to a 1/4 mile time from a chart i found on the internet and it translated to a 15.63 thats over a 1 second drop from the stock time on just 5psi of boost. but this is just an estimate chart the only way to get a true number is to actually do it

because we are tuning for something that hasnt been done to a 2.2 aparently, im talking a full ECM tune for a turbo aplication. so vince set the tune for a 10:1 afr which is safe but pig rich. And our ECM's max out at 52# injectors and i have 60#er's so he wanted to see how the computer would react to the 60's. he adjusted the map to command a 12.7:1 afr but since the injectors are bigger then what the ECM allows for im actually running 11.1:1 under WOT and 5psi and the car doesnt fall on its face anymore, still kinda sputters from the 11.1:1 but its not bad, it also could be that im runing bosch plats +2 so that could be why she is spitting.

Now that we know where about the turbo starts making boost he has adjust it acordingly and starting when my new header and downpipe come in i will be going against my 10psi limit/goal and going for 15psi. I am kinda worried about the axels though because i didnt mention this earlier but since he tuned the tranny to have UPPED line preasure, when the car shifted to second i got wheel hop from the 5psi of boost

ohhh and the reason for only 5psi was so that if the computer didnt like boost i wouldnt have ran a HUGE risk of blowing up the motor from boosting it.... Remember i have a 5,000 motor build in there that i dont want to blow up and have to start over again

06blackg85ss

iTrader: (1)

yeah man for tuning you have long road ahead of you. But, tell him to look at the fake 2-bar tunes used by the s/c'd and turbo'd cavi's. I'm sure some of those settings an be transferred to your car. also if you play with the voltage adders and etc on the injector tables you should be able to get it to control the 60lb injectors no prob

xCobalt05x

ill let him know about this paul, thanks man. with you and 06black's help im getting closer and closer to being tuned. I think 2 or 3 more street tune's and ill be ready to fine tune on the dyno (after i get the header and downpipe) i keep blowing out the collector gasket on the OBX header so im going with the ZZP LSJ stuff. it has a high flow cat in it so that should let the exhaust flow more freely to the turbo and when i go back to michigan im going to have my uncle increase the exhaust pipe from the 1.75 inch that it is now to a 2inch or a 2.25inch pipe from the cat to the turbo

IonNinja

well I'm glad that you've come to realize that getting this tune straight is going to take more than 2 hours.

One question though, why can't you run a different MAP sensor?

Also, what was your trap speed in that 10.0 1/8 mile?

xCobalt05x

I'm not sure if the ECM will let us change out the MAP or not. I'd have to ask him if there is an option to change that in the ECM tune. Vince says that he is sure we can get around the MAP for boosting the car what he is worried about is hitting the wall on the MAF, thats what he called it. Pretty much he doesnt want to hit the point where the MAF reaches its max reading of air flow, but he did say that the MAF on the 2.2 is the same as the MAF on the ss/sc so he is pretty sure that we wont hit the MAF wall.

that last part didnt really make sence to me because the ss/sc makes boost after the maf and not before it so i dont know how that works

here are some new pictures guys

my new MRZ superman strut covers

06black

you can swap map sensors, we all can....to a limit.

none the less, if you run outta maf just bump the maf pipe sizing, and retain that size from maf, to TB / compressor.

you low freq resolution will suffer, but thats no uber deal.

to swap maps you need to know what KPA the sensor has to be at to output 0V and what KPA is has to be at, to output 5V

swap that into your tables and there you go.

run a SS/SC MAP and the numbers are already known so you'll have less work to do.

xCobalt05x

the last part about the MAF you confused me with. you are you saying keep the size pipe i have now and just where the maf is make that part larger and then go back down to the pipe size i have now to the throtle body

because i read your TB as throtle body and the TB / compressor as both to the throtle boday and back to the turbo compressor

06black

its simple here...

what size pipe do you have the maf in?

the best compromise so far is 3in pipe.

once you jump to a 3in from what ever size charge pipe you run, you must maintain that size until the TB.

the reason behind this is air velocity, we jump size to slow the velocity, if you drop size back down after the jump up, you negate that effect, and induce tons of unneeded turbulence.

xCobalt05x

ahhh ok, its 2.5 inch pipping right up to the blow off valve and then after the blow off valve its the fujia CAI and i believe its 3inch because there is a step up coupler joining the two together

06black

make sure the maf is in a 3in pipe, and that stays the same size until you hit the tb.