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Old 08-27-2007, 09:10 AM   #1
David L.
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Default 2006 wrx 18g tune results pics added

Hey guys. I just got retuned on Saturday. There wasnt too much of an improvement on the dyno numbers but the car feels a lot different. The old tune was done in March which gave me good numbers. The second tune was on Saturday. It was 90 degrees with 85% humidity. The car was just not making power due to the heat and also the TMIC. These seem to be low #'s for an 18g with 19psi. TMIC's(unless you go meth) are not a good match for this turbo for those who are thinking about getting an 18g. I will try to get the dyno sheet on here later on.

Old mods 1st tune:
FP 18g 7cm
catless DP
SPT exhaust
stock injectors
walbro 255
Sti TMIC
293whp / 330tq @16.5 psi.

Mods Now:
FP 18g 7cm
Catless DP
HKS HiPower
SPT intake
750cc injectors
Walbro 255
Ebay TMIC
300whp / 330tq @ 19psi



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Last edited by David L.; 08-27-2007 at 06:53 PM.
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Old 08-27-2007, 09:16 AM   #2
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doesn't look like much of a gain at all, but if you show both your dyno graphs your power curve most likely shifted.
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Old 08-27-2007, 09:16 AM   #3
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My guess is that your new tune is much richer than your old tune and that is one reason why your WTQ did not go up even though your boost did.

Is the 19 psi boost all the way to redline? If so, you may need to tune the AVCS some for more WHP.
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Old 08-27-2007, 09:20 AM   #4
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does the car feel faster?
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Old 08-27-2007, 10:05 AM   #5
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Does the car feel great while driving? haha...I was planning on getting an 18g setup with a Top Mount Intercooler also.
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Old 08-27-2007, 10:10 AM   #6
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what kibnd of dyno was it on? Numbers seem about 20-30 hp off what I expected. I just dyno'd on a Land & Sea dyno at 280hp/330TQ with a VF39 upgrade hmmm. Have you considered headers ??
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Old 08-27-2007, 10:11 AM   #7
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is the 18g that you are using a tdo5 or td06? Im going with a td06 18g later on
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Old 08-27-2007, 10:19 AM   #8
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Quote:
Originally Posted by All4bSpinnin View Post
does the car feel faster?
Quote:
Originally Posted by dumpstercrusher View Post
Does the car feel great while driving? haha...I was planning on getting an 18g setup with a Top Mount Intercooler also.
The car definitly feels faster. A lot more responsive and hold boost longer than the first tune also it is a lot more agressive all the way to redline. Chris said that the temp and humidity was a big factor power wise. I should get another 10+ on cooler days.

Steer clear of top mount unless planning on meth. The 18g' s optimal efficiency is between 20-28psi and a TMIC will not allow you to get 20psi. Still not gettting my moneys worth out of it yet. I was hoping for a lot better #'s seeing that people are getting more than me with smaller turbos vf34, 39 and 43.
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Old 08-27-2007, 10:20 AM   #9
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Quote:
Originally Posted by manz79 View Post
is the 18g that you are using a tdo5 or td06? Im going with a td06 18g later on
tdo5.
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Old 08-27-2007, 10:28 AM   #10
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+1 for graphs.
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Old 08-27-2007, 10:32 AM   #11
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Quote:
Originally Posted by Newera09 View Post
what kibnd of dyno was it on? Numbers seem about 20-30 hp off what I expected. I just dyno'd on a Land & Sea dyno at 280hp/330TQ with a VF39 upgrade hmmm. Have you considered headers ??
Dynapack. The number seem 20-30 off what I expected too. I have considered headers but dont want to spend any more money on power for a while. This is starting to get too expensive....I spent 1500 in parts and labor for this second tune and still not seeing the psi and numbers I want. I am going ot do more research I obviously am missing some supporting mods and definitly need to look at either FMIC or Meth.
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Old 08-27-2007, 10:46 AM   #12
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tdo5.
ah-ha! Why do this?
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Old 08-27-2007, 10:50 AM   #13
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ah-ha! Why do this?

What you mean?
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Old 08-27-2007, 10:57 AM   #14
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Quote:
Originally Posted by David L. View Post

Steer clear of top mount unless planning on meth. The 18g' s optimal efficiency is between 20-28psi and a TMIC will not allow you to get 20psi. Still not gettting my moneys worth out of it yet. I was hoping for a lot better #'s seeing that people are getting more than me with smaller turbos vf34, 39 and 43.
An ebay TMIC maybe, but a good TMIC, no. Compare the fin density sometime between the ebay TMIC and the TXS TMIC, theres a huge difference.
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Old 08-27-2007, 11:16 AM   #15
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Quote:
Originally Posted by David L. View Post
What you mean?
IMHO, a TD05(or 5H) is too small for a 2.5L engine w/o using a EWG or a 8cm^2 exhaust housing. You have neither. Having both would rock.

Last edited by testes1010; 08-27-2007 at 11:23 AM.
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Old 08-27-2007, 11:22 AM   #16
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Quote:
Originally Posted by testes1010 View Post
IMHO, a TD05(or 5H) is too small for a 2.5L engine w/o using a EWG or a 8cm^2 exhaust housing. You have neither.
+1 He'll definitely get some nice gains by going to an EWG or larger exhaust housing.
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Old 08-27-2007, 11:29 AM   #17
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Get some better breathing ability, then it should be pushing a good 320whp and 350wtq(I would hope) At 19psi that isn't that good at all.

I got my stock td04 and I am pushing only 240whp but 330wtq
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Old 08-27-2007, 11:48 AM   #18
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EWG and 8cm2 exhaust housing ftw. Save some money and get a bigger turbo. If money allows water or meth system.
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Old 08-27-2007, 11:56 AM   #19
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Quote:
Originally Posted by testes1010 View Post
IMHO, a TD05(or 5H) is too small for a 2.5L engine w/o using a EWG or a 8cm^2 exhaust housing. You have neither. Having both would rock.
When I bought this turbo from FP they did not advertise the tdo6 with 8cm hotside. I guess you had to know and ask for it when ordering, me being a noob didnt know they also did not advertise the 20g either.

Quote:
Originally Posted by jflexe99 View Post
Get some better breathing ability, then it should be pushing a good 320whp and 350wtq(I would hope) At 19psi that isn't that good at all.
I know. wit2003 has a TR with a 39 and a front mount putting 297whp / 340wtq at 19.5 psi.

FMIC and 23psi FTW. Next year

Quote:
I got my stock td04 and I am pushing only 240whp but 330wtq
Sweet.
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Old 08-27-2007, 12:29 PM   #20
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Quote:
Originally Posted by cucamelsmd15 View Post
An ebay TMIC maybe, but a good TMIC, no. Compare the fin density sometime between the ebay TMIC and the TXS TMIC, theres a huge difference.
Would you say an JDM STI top mount be good or would it just be best off getting a Front Mount Intercooler to run that turbo?
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Old 08-27-2007, 01:16 PM   #21
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Quote:
Originally Posted by dumpstercrusher View Post
Would you say an JDM STI top mount be good or would it just be best off getting a Front Mount Intercooler to run that turbo?
JDM topmounts are only marginally better than the USDM ones, Id say ~15%. It depends on what my goals for the car are (in which case, I wouldnt have gone with that turbo ), but I would take the better topmount over the frontmount.
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Old 08-27-2007, 01:26 PM   #22
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do you any data logs david?
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Old 08-27-2007, 01:29 PM   #23
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do you any data logs david?

No. Not sure how to do it. Have the APv2 if you want to tell me how.
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Old 08-27-2007, 02:02 PM   #24
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What does a stock WRX/STI put down on this dyno? That means so much more than the numbers. Even with that, the gold standard would be trap speeds.

Also, I doubt the Ebay TMIC is holding you back one bit. There are many pushing good power through them. I put down 358/302 with a 18G'd 2 liter on a Mustang and Japslapr put down 300/300 with the Ebay TMIC and no problems. Blame it on something else, such as the fact you need a TD06 or 8cm before you go buy a "better" top mount.
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Old 08-27-2007, 02:20 PM   #25
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It definitely needs more boost.

To gain power with the "heatsoaked" tmics, you tend to want to run the a/f mixture a little richer...down to 11:1, and perhaps 10.8:1, so as to run a bit more timing in the top-end.

Your torque looks good, but the hp isn't much to brag about.
On the other hand, it probably would have been better to go with the 8cm^2 td06 turbine side.

Another note, isn't FP supplying their 18g's with the small td05 compressor cover? I think that compressor housing is severely limiting some people.
They used to supply/build those particular turbos with a bigger housing, as Blouch does. FP will tell people it doesn't matter, but I seem to think otherwise.
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