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Old 10-14-2001, 02:27 AM   #1
scoobyruman
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Talking Oh Yeah 12's here I come !!

Well tonight around 5 had nothing to do so I decide to go ahead and put my new turbo on. Make a few phone calls meet up at friends garage who just happens to have a lift but was not fully finished. So at 6:30 he goes and gets all the parts he needs to finish I get a few tools and we meet back at about 7:30 so he gets everything all set with the lift at about 8:15 and i get underway everything goes pretty smooth get everything all done in 2 and 1/2 hours, [HERE IT IS] buuut when we back it off the lift all of a sudden smoke pours out of the engine compartment so we assume its engine coolant burning off, theres was a lot spilt so I take it for a ride no luck still smoking bad get it back in spend about a hour evaluating it and searching finally notice that the factory bolts from the coolant pipes were not tightened and was spraying a bit under throttle. Tighten them up and back underway, go for a ride and there is still smoke. So we put it back up on the lift and look around for about a 1/2 hour see nothing wrong at all back it out drive it leave it running and well all of a sudden no smoke nothing, it was burning off thats all and everything is now running smooth . Drive it very calm fro the next couple days, not sure on break in period and boost level but, im gonna run it at 7 lbs for about 700 miles.

Im hoping to be able to give it a shot this wednesday we will see.

too be continue......


chad n
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Old 10-14-2001, 04:33 AM   #2
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I would think that you would want to run the boost at to at least the stock level of 14.5 PSI. Is there a reason why you are running your new turbo at lower then stock settings?
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Old 10-14-2001, 09:02 AM   #3
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I would think he wouldnt want to run under normal boost because the turbo is alot bigger....


-Mike
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Old 10-14-2001, 09:16 AM   #4
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SilverBell: He's running the turbo at 7 PSI so he can break it in. Stock redline for an EJ25 motor is 6250, but you don't run it up there when you first get it either.

Mike: Boost is Boost. 7 lbs of boost from one turbocharger is equivalent to 7 lbs of boost from any other turbocharger.

Fitz
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Old 10-14-2001, 09:50 AM   #5
fastline
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Quote:
I would think that you would want to run the boost at to at least the stock level of 14.5 PSI
stock boost pressure is not 14.5
if you have a factory subaru gauge install it may read that but it's not right. i put a GOOD boost gauge in the car before i put in a MBC and in stock from with just a intake the car pulls around 9 or 10lbs in 1st and 2nd...then in 3rd and 4th at hard roll ons it will still only go to 11 and spike to 11.5lbs in 5th. i had several runs on the highway and this is what i came up with. i did this because everone kept telling me it was running at 14lbs and i just could not believe that the factory would sell the car runing that much boost. has anyone else tested like this and came up with anything different? i don't think eveyones car is running at 14.5 and mine is not....again gauges can make a big difference so make sure your using a good one.

Mark
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Old 10-14-2001, 10:08 AM   #6
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Fastline....

1.) There's something wrong where you tapped the gauge
2.) There's something wrong with your gauge.

Where do you tap in for the gauge? You may be getting wrong readings or you have a hose that's leaking.

The car DOES make 14(ish) lbs of boost at full throttle in 2nd, 3rd, 4th and 5th.

1st gear on stock ECU with no boost control is around 7lbs. It's designed that way.

--kC
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Old 10-14-2001, 12:12 PM   #7
bill harvey
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Fitz since when was 7psi from a small turbo less cfm the same as 7 psi on a much bigger turbo ie more cfm the same?
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Old 10-14-2001, 02:21 PM   #8
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Quote:
Originally posted by bill harvey
Fitz since when was 7psi from a small turbo less cfm the same as 7 psi on a much bigger turbo ie more cfm the same?
Thats deffiantly 100% wrong. Sorry to say it. 7psi = 7psi yes, but CFM's are a whole different story.

When i replaced the turbo on my Trans Am i went from running 22-23psi and running 12.1@113 to running 20psi and 12.0@116mph. go figure
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Old 10-14-2001, 03:57 PM   #9
joe z
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who wants to take bets on how fast it takes him to blow his motor
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Old 10-14-2001, 04:54 PM   #10
fastline
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Quote:
The car DOES make 14(ish) lbs of boost at full throttle in 2nd, 3rd, 4th and 5th.
can anyone else confirm this?


Quote:
1.) There's something wrong where you tapped the gauge
this is not my first turbo car....it's where everyone else taps the gauge in to....the nipple off the intake in front.

Quote:
2.) There's something wrong with your gauge.
Quote:
i put a GOOD boost gauge in the car before i put in a MBC

Quote:
You may be getting wrong readings or you have a hose that's leaking.
hoses are deffinatly not leaking....i own a performance shop and have been a tech for 16 years.....also run a race team so things like that i check and double check.

now i'm not trying to sound like a jerk here i just was woundering if anyone else has tested like this.

if i'm wrong and my gauge is off it seems weird that my car will still hit fuel cut at around 16.5lbs....so when is read 10lbs without a BC i don't think the gauge was off.
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Old 10-14-2001, 05:22 PM   #11
scoobyruman
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There is 2 different places you can get a boost tap on the motor, 1st is the hose in front coming out of the intake manifold the other is on the BOV, from what I have been told Alex thinks the hose on the BOV is more accurate. I believe they are quite equal, but its hard to watch both guages and drive at the same time .


Oh yeah and Joe remember what you said when I put in nitrous! I never blew anything up with that so why all of a sudden will I blow something up with a turbo ??? I like to know why please enlighten me. I would like to hear from joe on this, now just looking for reason behind his wise remark.

And just to let you know 7 lbs of boost on the new turbo is a huge difference then the stock turbo all smiles so far.


Chad N

thanks guys for any reccomendations on how to drive for the next couple weeks.
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Old 10-14-2001, 05:46 PM   #12
redobs
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Saw Chad's car today. All I can is .........DAMN, THAT'S A NICE WAGON!!!! Everytime I do one mod, Chad does two!! Boy, I got some catching up to do.
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Old 10-14-2001, 11:32 PM   #13
joe z
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well the nitro wasn't something that you were running all the time so..... it's just after the i hit 19.?? lbs of boost story makes me wonder how long it's going to take befor you try something silly like that with this one is all... i hope you don't blow it up
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Old 10-15-2001, 12:12 AM   #14
scoobyruman
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I wasnt trying to hit 19 it was set for 17 but it happen to be a cold morning and that made a huge difference, also it was a quick moment and never happen again. Plus it didnt blow up then now did it.

Chad N
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Old 10-15-2001, 12:27 AM   #15
blub blub
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it was a dark and
stormy night.....

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and now enter justin with his smart ass comment.

ummmmm.... searching for one..... hmmmmm,

damn... i'm fresh out.

as far as the drags wed. night -
any open scobbies gonna be there that'll let me
have the first run of my life in a proper car?
otherwise i'll have to run the huuuunnndddaaaa...
and it won't be pritty.
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Old 10-15-2001, 12:27 AM   #16
redobs
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Hey Joe,
Chad has a little present for you!


Mark: I can confirm what KC said.
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Old 10-15-2001, 12:29 AM   #17
joe z
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i know i know i'm just bustin' your ballz dude chill
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Old 10-15-2001, 12:32 AM   #18
joe z
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a present oh boy i can't wait
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Old 10-15-2001, 12:35 AM   #19
scoobyruman
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Like I expected less from you come on joe hehe oh yeah and i do have a present for you make you a little happy then usual. Oh yeah and the blitz SID that we put in petes car is so damn sweet oh my what a awesome piece of electronics.


Chad N
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Old 10-15-2001, 01:27 AM   #20
redobs
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Chad,

Thanks again for helping me install that bad boy!! Just got to learn how to use it now!
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Old 10-15-2001, 07:38 AM   #21
KC
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Mark, I'd be very interested to find out the results too. My problem is I live on the other side of MA and no where near Manch Vagas, or I'd be up there helping out figuring what's up with it.

I kinda feel *sniff* left out of all that goes on up there. *sniff* Joe, Chad all getting to play on dirt roads, dodging cows. I get tarmac stages only. (I did find a construction zone with dirt, raised manhole covers and no-one in front of me once. But it was paved the next day... I did go through about 6 times in about 5 minutes)

Anyhoo, I have my boost tapped into the BOV.

If you're only reading those numbers, and belive the gauge is working accurately, then there's something wrong with the car. But before you bring it to the dealership for them to look at, just try tapping into the BOV line and see what numbers you get. The numbers for pressure are in the service manuals, and therefore are good numbers. (14.x lbs stock).

This isn't a case like the 'Tang Cobras with smaller diameter pipes choking hp from the engine.
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Old 10-15-2001, 08:52 AM   #22
paultg
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Hey Chad, check your pm's.

Paul G.
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Old 10-15-2001, 09:12 AM   #23
bill harvey
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Paul you are late it already gone

Chad call me, by the way i am glad you are happy and it worked out for you.

Last edited by bill harvey; 10-15-2001 at 11:25 AM.
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Old 10-15-2001, 05:09 PM   #24
rogue
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So you've turbo'd your EJ25? Now you're ready for step 2!

I hear those RS-T's LOVE 87 octane fuel!

You didn't like having your pistons all in one piece, anyway.
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Old 10-15-2001, 06:02 PM   #25
blub blub
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it was a dark and
stormy night.....

Unhappy

please look at my last post.....

jim??? kris??? anyone!?!?
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