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Old 01-03-2009, 01:04 PM   #1
DannyGrant
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Blue

Default FP Green 7cm 2.5" inlet IWG

I know this is nothing to brag about.

I just wanted to see if this graph looks normal to everyone.

I know I'm going to get flamed for not having enough supporting mods.

Here's the list:

2007 STI:
---------
COBB UP
COBB DP (catless)
SPT intake
SPT exhaust
255 L/hr pump
850cc injectors
FP Green 7cm 2.5" inlet IWG
GM Boost control solenoid
Engine Logics custom tune.







As you can see by the torque curve, I don't get thrown back in my seat until 3700 rpm. The power surge quickly ends at 4200 rpm. This was a disappointment to me because I came from the VF43 which punches you in your seat at 2500 rpm all the way through 4000 rpm.

I didn't gain much power from the Green versus the stock turbo. Just alot of perceivable power lag.

Here are my dyno charts with the EXACT same mods minus the Green:







I noticed that I'm at 17 psi at 3700 with the Green. And 17 psi at 3200 with the VF43. This was supprising to me because I bought the 7cm Green for a quicker spool than the 8cm (I don't care about top end power). This makes me cringe thinking about what the spool would be like on a 8cm.

But maybe there is something wrong with my setup. That's why I'm making this post. What do you think? Are these normal green numbers?

I'm getting the following done in a couple weeks:
----------------------------------------------
APS TMIC
GTSpec GEN II unequall length header
IAG UP
TiAL 38mm External Wastegate (V-band)
Jorge IAG custom tune

My main concern is being able to move the dyno chart to the left. Hopefully I can get more punch out of it.

Anyone with FPGreen dyno charts would help alot.

Thanks!
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Last edited by DannyGrant; 01-03-2009 at 06:04 PM.
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Old 01-03-2009, 01:10 PM   #2
Infamous1
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Wow, so you gained 12whp and lost 2wtq. The spool honestly is close to where it should be. The lack of efficent cooling and only 17psi is more than likely why your numbers are suffering.
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Old 01-03-2009, 01:32 PM   #3
DannyGrant
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Quote:
Originally Posted by Infamous1 View Post
Wow, so you gained 12whp and lost 2wtq. The spool honestly is close to where it should be. The lack of efficent cooling and only 17psi is more than likely why your numbers are suffering.
Haha, yup. And it seems worse because it is compounded by the perception of a TON of lag.

I do get to 20 psi on the Green by 3875 rpm. This quickly tapers to 17 psi which, I assume, is due to the smaller 7cm hot side. It's just so weird because even though I'm making more boost up top (17 vs 15 psi), I can't tell a difference.
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Old 01-03-2009, 01:45 PM   #4
WRX4eva
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it doesn't look correct to my eyes. I don't understand why it wouldn't hold boost. Maybe a leak somewhere? I would do a smoke/leak test if i were you.
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Old 01-03-2009, 01:55 PM   #5
69subaru360
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My opinion is that either the car is tuned very conservative or something is not right mechanically. Even without buying all the parts you mention there is a lot left on the table as far as power and boost goes. 17 is low boost for an FP green. This turbo can run easily in the mid 20's. There is a lot that can be done with the avcs to get the car in boost sooner if that is what you are after also.
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Old 01-03-2009, 03:04 PM   #6
pearljam11
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Wow that really falls off. Stage II STis have about the same peak hp #s and much higher tq #s
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Old 01-03-2009, 03:43 PM   #7
godforbid67
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yeah man, those are pretty bad numbers. but the spool looks just about dead on. there is NOOOOOOOO reason why that thing cant hold 20 psi. my green holds 25 psi to red line (ewg and 8cm but still) kinda seems maybe like a bad tune possibly? i mean 12 more wheel over a vf43? come on.
first off you need more boost, a green and larger turbos dont even wake up till 22+ psi. i made like 360 wheel and 320 tq at 21 pounds then i told the guy i want 24-25 psi. then the car made 30 more wheel and about 80 more wheel tq, which is hella more at only 3 more pounds.
i would check for leaks, but i dont think it would spool like that if there was a leak. the car just aint holding boost and doesnt have enough boost in the first place. good luck


(waiting for phatron )
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Old 01-03-2009, 03:58 PM   #8
wrex03
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Green is not a lean as the past tune. Why only 17 PSI? What kind of gas?
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Old 01-03-2009, 04:02 PM   #9
DannyGrant
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Quote:
Originally Posted by wrex03 View Post
Green is not a lean as the past tune. Why only 17 PSI? What kind of gas?
93 octane.
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Old 01-03-2009, 05:28 PM   #10
godforbid67
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pretty damn sure my green is blown ...........
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Old 01-03-2009, 05:31 PM   #11
n2oiroc
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is it a catted dp? if so, thats keeping you down 15 whp or so. i bet the rest is from the lack of boost. you NEED to be at 21psi +.
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Old 01-03-2009, 05:34 PM   #12
MattPersman
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so you have an engine logics tune now? what does Chris say about this assuming he tuned it? he is very knowledgeable and experienced so the tuner is not the problem

why are you switching to a Jorge tune and not have Chris retune it with the new stuff maybe at a slight discount?

your location says Houston, why not bring it by MZM and have them look at it or retune it? they have built solid cars

if you are in the tri-state area you have access to numerous good tuners; nothing against Jorge by any means he is a helluva tuner from what I have seen with loads of experience but, I would like to be tuned by one of your local ones so if you have any questions or need something looked at quickly it is local and convenient.

gotta be something in your set up that is holding you back, 7cm green should make a good 50 whp + over a stage 2 car even with cats and a restrictive cat back
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Old 01-03-2009, 05:36 PM   #13
HighSpeedLowDrag
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FPGreen,FMIC,Wisecos,MSPT

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I have the small green just like you. It easily holds 20psi all the way to redline. You are losing a lot of power on the top end at only 17psi. As far as running this turbo with a TMIC, honestly, if I were you I would run an FMIC being in Houston and on stock pistons. I have run it with both a big TMIC and FMIC. You are leaving yourself vulnerable to detonation on a hot summer day with a TMIC, and the stock pistons do not handle detonation very well at all. My car runs super consistently in the summer with the FMIC, even in traffic with the a/c running. I don't know about dyno graphs, but I cannot "feel" any difference in spool between the two intercoolers other than that the car runs much stronger with the FMIC.
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Old 01-03-2009, 05:44 PM   #14
sleepersti04
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You really have all the supporting mods needed, your numbers are definently low.
I made 60whp more on the 8cm Green
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Old 01-03-2009, 05:51 PM   #15
DannyGrant
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Quote:
Originally Posted by MattPersman View Post
so you have an engine logics tune now? what does Chris say about this assuming he tuned it? he is very knowledgeable and experienced so the tuner is not the problem

why are you switching to a Jorge tune and not have Chris retune it with the new stuff maybe at a slight discount?

your location says Houston, why not bring it by MZM and have them look at it or retune it? they have built solid cars

if you are in the tri-state area you have access to numerous good tuners; nothing against Jorge by any means he is a helluva tuner from what I have seen with loads of experience but, I would like to be tuned by one of your local ones so if you have any questions or need something looked at quickly it is local and convenient.

gotta be something in your set up that is holding you back, 7cm green should make a good 50 whp + over a stage 2 car even with cats and a restrictive cat back
Brad tuned it. He said he honestly didn't know why it was performing so poorly. There were other problems that came with Brad's tune. Such as a rolling idle. He even tuned it twice. Problem is still there.

I'm in the tristate area right now for school. That's why I'm getting a tune up here.

I didn't know about MZM. I'll have to look them up when I move back.

Last edited by DannyGrant; 01-03-2009 at 06:13 PM.
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Old 01-03-2009, 05:54 PM   #16
DannyGrant
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Quote:
Originally Posted by n2oiroc View Post
is it a catted dp? if so, thats keeping you down 15 whp or so. i bet the rest is from the lack of boost. you NEED to be at 21psi +.
Catless.
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Old 01-04-2009, 12:20 PM   #17
2002WRXSTi
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Wow that ain't a good tune with a Green with that output I have the same sized Green on my 2.0 and at 24psi I pushed 380whp.

Junior tuned it way back when and yeah I have a JDM engine and FMIC but if I only came that much up in HP when I did my turbo swap I probably would have sold my car
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Old 01-04-2009, 03:04 PM   #18
MattPersman
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if you are in the tristate area now for school get JR tune!
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Old 01-04-2009, 03:21 PM   #19
DannyGrant
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Quote:
Originally Posted by MattPersman View Post
if you are in the tristate area now for school get JR tune!
What's JR? Link pl0x?
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Old 01-04-2009, 08:40 PM   #20
MattPersman
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Jr is the tuner at The Shop. his screen name is Junior2JZ and http://www.theshopct.com/ PM him and tell him what you got going on, he will be able to help you out I am sure
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Old 01-04-2009, 08:46 PM   #21
ownnij
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wow those numbers even make me sad. =(
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Old 01-04-2009, 09:31 PM   #22
Phatron
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your numbers are low because of your lack of boost. im assuming you're on 93 octane....you should be running 21-22 psi tapering to 20 psi by redline. upping the boost 3 psi at redline will net you around 30 whp.

your lag is due to your 2.4" turbo inlet pipe, 2.4" inlet, tgv's, stock headers......

your power is a result of your setup and your tune, not the turbos fault. there is really no point in getting a green if you're only gonna run it at 17 psi at redline....shoulda just kept the stocker. at high rpm the only way to make more power is more boost (or cams, but that really doesnt apply here). the only reason to lower the boost like that is if the tmic was not up to the cooling task and you were knocking at higher boost levels.

also, some others have reported that the spt catback becomes a hinderance with larger turbos....not sure what turbo flow the losses start to appear at though.

heres my 3" 8cm green

20psi by 3600rpm
25psi by 3700rpm

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Old 01-04-2009, 09:56 PM   #23
slowmike
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I agree with Phatron, it's the supporting mods. I get peak torque at 3600 on the dyno with my Green. I'm only running 19.5 PSi on 91 octane and I don't have AVCS.
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Old 01-04-2009, 09:59 PM   #24
DannyGrant
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Quote:
Originally Posted by Phatron View Post
your numbers are low because of your lack of boost. im assuming you're on 93 octane....you should be running 21-22 psi tapering to 20 psi by redline. upping the boost 3 psi at redline will net you around 30 whp.

your lag is due to your 2.4" turbo inlet pipe, 2.4" inlet, tgv's, stock headers......

your power is a result of your setup and your tune, not the turbos fault. there is really no point in getting a green if you're only gonna run it at 17 psi at redline....shoulda just kept the stocker. at high rpm the only way to make more power is more boost (or cams, but that really doesnt apply here). the only reason to lower the boost like that is if the tmic was not up to the cooling task and you were knocking at higher boost levels.

also, some others have reported that the spt catback becomes a hinderance with larger turbos....not sure what turbo flow the losses start to appear at though.

heres my 3" 8cm green

20psi by 3600rpm
25psi by 3700rpm
Thanks for the info! Could I request a graph of your torque curve please?
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Old 01-04-2009, 10:28 PM   #25
Phatron
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here ya go...91, 91+meth and 100+meth

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