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Old 07-06-2013, 03:52 PM   #1
Boosted Tuning
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335i / WRX
EVO 8 RS

Default BOOSTED TUNING Road Tune - 03 WRX/Gt30/Built Block on E85 - 443hp/367tq

Car: 03 WRX
Tuner: Jay @ Boosted Tuning (www.boostedtuning.com)
Dyno Info: Virtual Dyno
Transmission: STI 6sp
Gear: 4rd
Baseline hp/tq for a stock on same dyno: 180-190
Target Boost: 24psi
Fuel: E85
Temp: 95*

Engine/Power Modifications:

Garrett GT3076 - ceramic coated
Perrin CAI
Custom rotated turbo inlet tube
Custom Y pipe
gasket matched IC ends
SPearco TMIC for STi - gasket matched inlet
Stock Modified BOV - atmosphere.
Splitter for Spearco TMIC
JDM 3" scoop
Mishimoto IC-TB pipe
Gasket matched - ported TB
Gasket matched stock intake manifold
gasket matched TGV housing
TGV delete
Grimmspeed 8mm TGV spacer
Walbro 255lph fuel pump
Perrin Fuel rail kit
FIC fuel injector 1400cc
Greddy UEL headers - Ceramic coated
TiAL 38mm EWG - 18.9 psi spring
P and L rotated Up pipe and down pipe kit - ceramic
3" catback exhaust
Walbro 255 fuel pump

Engine Internals Etc.:

AEM lightened pulley kit
ACT Sti HD extreme pp and disc with Prolite flywheel
OEM suabru ej205 crank
CP custom spec pistons w/ antifriction and heat barrier coatings
STI rods
ARP uprated fasteners
ARP 2000 headstuds
King race Main and rod bearings
Ported and smoothed oil galleries
OEM seal kit

This client tracks this car at HPDEs about 1-2 times a month. Its all built by him. When he tracks, he runs 22psi and it makes about 410-420hp. But I got him to let me up the boost a lil more, just to see what it could do. So with the boost upped to 24psi, it made the chart below.

Client said we can go bigger and try for 500hp after the track season ie this fall.



** Multiple back to back pulls shown, to show that power is consistent and that dyno numbers are not a one time VD fluke. (I feel this should be done with all VD charts/results) **
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Attached Images
File Type: jpg Sinclair E85 GT30R @ 24 Dyno.jpg (66.1 KB, 529 views)

Last edited by Boosted Tuning; 07-06-2013 at 06:07 PM.
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Old 07-06-2013, 06:04 PM   #2
Phatron
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Stock MAP sensor?
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Old 07-06-2013, 06:07 PM   #3
Boosted Tuning
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335i / WRX
EVO 8 RS

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Quote:
Originally Posted by Phatron View Post
Stock MAP sensor?
Yeah. But the sensor wasnt maxed out. VD just kinda makes it look that way.
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Old 07-06-2013, 06:09 PM   #4
Phatron
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If its not maxed its pretty damn close, don't think I've ever seen one read over 24. Either way the overboost fuel cut is disabled.
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Old 07-06-2013, 06:18 PM   #5
Boosted Tuning
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Quote:
Originally Posted by Phatron View Post
If its not maxed its pretty damn close, don't think I've ever seen one read over 24. Either way the overboost fuel cut is disabled.
Here is a log of the boost. IIRC, the sensor maxes out at about 24.2 or 24.4.

Also, overboost fuel cut is not disabled and was at 24.98psi (Edit: I guess since the sensor maxes out at 24.2/.4, fuel cut wont work).

Attached Images
File Type: png Untitled.png (6.7 KB, 331 views)

Last edited by Boosted Tuning; 07-06-2013 at 06:32 PM.
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Old 07-06-2013, 06:23 PM   #6
Phatron
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If the sensor maxes at 24.2, then how will it cut boost at 24.98?

Ahh, saw your edit. I can't see the log as I'm on my phone...the two pics in your last post aren't showing up.

Even if it wasn't maxed, a 0.7 delta between peak boost in 4th and fuel cut probably wouldn't work. You usually need a 1.5-2 psi delta between peak boost in lower gears and the fuel cut, to account for higher gear and cold weather boost. If the delta is really close you will constantly hit fuel cut. Unless the wgdc is ramped down at 100% throttle and lower rpm to help it not spike....along with some good iat wgdc comps.

Last edited by Phatron; 07-06-2013 at 06:28 PM.
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Old 07-06-2013, 06:28 PM   #7
Boosted Tuning
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335i / WRX
EVO 8 RS

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Quote:
Originally Posted by Phatron View Post
If the sensor maxes at 24.2, then how will it cut boost at 24.98?
True. Since the client let me up the boost for a couple runs and this was just testing, I just gave the fuel cut a couple more clicks, to ensure we wouldn't hit it during the middle of the pulls.

The car is running the 22psi ROM currently, which has the fuel cut at 23.5 psi.

EDIT: just saw your edit, I normally run fuel cut about 1.5 psi over target. Also, this car uses a MBC so there no WGDC or WGDC comps.

Car has already been tracked on the 22psi ROM in 108* weather and ran flawlessly. The MBC will be adjusted down when winter comes.

Last edited by Boosted Tuning; 07-06-2013 at 06:51 PM.
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Old 07-06-2013, 06:37 PM   #8
Phatron
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Yeah, it's not a horribly big issue until a line pops off the hallman.

I had it happen twice on my old roommates car. 28-29 psi on a vf on 91 oct. I don't really like mbc's for customer cars anymore. They are great and easy from a tuning standpoint, but ultimately require too much adjustment from the end user with temp fluctuations.
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Old 07-06-2013, 06:51 PM   #9
Boosted Tuning
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335i / WRX
EVO 8 RS

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Quote:
Originally Posted by Phatron View Post
Yeah, it's not a horribly big issue until a line pops off the hallman.

I had it happen twice on my old roommates car. 28-29 psi on a vf on 91 oct. I don't really like mbc's for customer cars anymore. They are great and easy from a tuning standpoint, but ultimately require too much adjustment from the end user with temp fluctuations.
Zip ties my friend.

Yeah, I favor ECU boost in most cases, but this is the client's track car and he prefers the MBC. Also, I have seen some hallmans be inconsistent, but his is super consistent. Every pull over lays the last and just about all the gears are within a psi of each other. Also, since its his track car, hes always tinkering with it and maintaining it, so adjusting the boost for seasonal temp changes is not that big of an issue.
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Old 07-06-2013, 09:32 PM   #10
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How far out does this rev? Literally 0 drop to 6500 makes me wonder what another grand would look like!
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Old 07-07-2013, 09:33 AM   #11
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Very nice numbers on that turbo! Is this on a factory WRX 2.0liter heads with stock camshafts?
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Old 07-07-2013, 12:01 PM   #12
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Originally Posted by Sypher View Post
Is this on a factory WRX 2.0liter heads with stock camshafts?
+2?

Id expect to see the curve nose dive before 6500 with the wrx cams
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Old 07-07-2013, 12:58 PM   #13
Boosted Tuning
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Location: Chico, CA (boostedtuning.com)
Vehicle:
335i / WRX
EVO 8 RS

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Im pretty sure its just WRX heads with wrx cams. Its the turbo that maintains that power up top.

Client is gonna be installing springs and cams soon. Then well be able to rev it out past 7 safely.
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Old 07-07-2013, 01:40 PM   #14
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Quote:
Originally Posted by Phatron View Post
Yeah, it's not a horribly big issue until a line pops off the hallman.

I had it happen twice on my old roommates car. 28-29 psi on a vf on 91 oct. I don't really like mbc's for customer cars anymore. They are great and easy from a tuning standpoint, but ultimately require too much adjustment from the end user with temp fluctuations.
Can you speak more on what you've witnessed for temp variation with the mbc? Very interested as I could swear I noticed the same, but wasn't as anal as I am now about stuff.

Carmi
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Old 07-07-2013, 02:06 PM   #15
Phatron
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If u set the mbc to 20psi in 4th gear in 120* heat, then when it's 30* you will be hitting 22-24psi in 4th and higher in 5 and 6th
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Old 07-07-2013, 02:36 PM   #16
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Quote:
Originally Posted by Phatron View Post
If u set the mbc to 20psi in 4th gear in 120* heat, then when it's 30* you will be hitting 22-24psi in 4th and higher in 5 and 6th
Oof!!!
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Old 07-07-2013, 03:21 PM   #17
juanmedina
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Quote:
Originally Posted by Phatron View Post
If u set the mbc to 20psi in 4th gear in 120* heat, then when it's 30* you will be hitting 22-24psi in 4th and higher in 5 and 6th
+12345

have you used the Buschur racing MBC? He claims that boost doesn't change by change in temperature. I have been using a MBC forever and I know that from experience when I need to adjust the MBC or when I should do the pull without blowing up. I just don't like the feel of the 3-port EBCS I have one wired on my car....
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Old 10-10-2013, 09:50 AM   #18
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Chance of an update?
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