Welcome to the North American Subaru Impreza Owners Club Sunday December 28, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Proven Power Bragging

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 07-16-2009, 08:38 PM   #1
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default 07 WRX: FP HTA68, 91 Octane = 280whp/292ft-lbs

I tuned this car earlier today. Its an 07 WRX with:

FP HTA68
CSS TMIC
Catless TBE
Walbro
Hallman MBC
Stock Intake, Stock Inlet, Stock Injectors
EQ Tuning Custom Tune using Cobb AP V2

The tune was done on 91 Octane at 19psi peak with 93F Ambient temps. Here's the chart:



Impressions of the HTA68:

Its a nice turbo about the size of a big 16G or TD05-18G. We saw full boost around 3200RPM in 3rd gear and it held about 17psi to redline. Overall transient response is good and I'm sure it could do better with a good inlet, intake, and headers, just as any other turbo.

While its a nice turbo all around, I don't see any reason to hype it up as much as it has been. It spools and flows as I would expect a big 16G to. There's no magic and no secret to it... just a nicely sized turbo for good overall response and healthy power levels.

Thanks
-- Ed

*** Standard Dyno Chart Disclaimer ***

This software reads low and should be compared to the lower reading mustang dynos. Here are some proven numbers and trap speeds for reference:

Stock WRX - 155-165whp
Stock STI - 215-225whp

265-275whp - 107-108mph traps
300-310whp - 112-113mph traps
325-335whp - 115-116mph traps
380-390whp - 120-121mph traps

*** End Disclaimer ***
* Registered users of the site do not see these ads.
Equilibrium Tuning is offline   Reply With Quote
Old 07-16-2009, 08:45 PM   #2
Trevor723
Scooby Specialist
 
Member#: 57989
Join Date: Mar 2004
Chapter/Region: NESIC
Location: Maine
Vehicle:
2013 Golf TDI
united gray

Default

How much if any headroom is left on the stock injectors?
Trevor723 is offline   Reply With Quote
Old 07-16-2009, 08:46 PM   #3
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

They're maxxed out at about 10.7:1 up top.

-- Ed
Equilibrium Tuning is offline   Reply With Quote
Old 07-16-2009, 09:36 PM   #4
imout
Scooby Newbie
 
Member#: 120169
Join Date: Jul 2006
Location: Sacramento/Davis
Vehicle:
05 sti
OBP

Default

I noticed the numbers are similiar to what VF39s make on your software.

Would you expect this to make better numbers on race gas or E85 compared to a VF39 on race gas?
imout is offline   Reply With Quote
Old 07-16-2009, 09:44 PM   #5
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

Quote:
Originally Posted by imout View Post
I noticed the numbers are similiar to what VF39s make on your software.

Would you expect this to make better numbers on race gas or E85 compared to a VF39 on race gas?
I'd rather not make any assumptions about potential performance on higher octane without actually seeing the results. This turbo definitely holds more boost up top than a VF series, but it seems to flow only a touch more air at the higher boost levels, so its difficult to say if it has that much more power potential.

Thanks
-- Ed
Equilibrium Tuning is offline   Reply With Quote
Old 07-16-2009, 09:45 PM   #6
renosubby
Scooby Specialist
 
Member#: 152576
Join Date: Jun 2007
Chapter/Region: SWIC
Location: Reno, NV
Vehicle:
2006 STI 10.8@ 129
www.Mayhemtuning.com

Default

Good Stuff Ed.
renosubby is offline   Reply With Quote
Old 07-16-2009, 10:04 PM   #7
06-wrx-tr
Scooby Specialist
 
Member#: 185106
Join Date: Jul 2008
Chapter/Region: RMIC
Location: UT
Vehicle:
2006 Subaru WRX WRB
Mazda protege'

Default

so would a big 20g be A better choice if someone was looking for an upgrade from a vf series turbo?
06-wrx-tr is offline   Reply With Quote
Old 07-16-2009, 10:38 PM   #8
STi Mikey
Scooby Specialist
 
Member#: 114631
Join Date: May 2006
Chapter/Region: Tri-State
Location: TheShopCT / EFI LOGICS
Vehicle:
2009 GTR, 735whp
13' Benz, 15' WRX

Default

Hmmm. I think even you Ed would be surprised on how supporting mods open this turbo up. Obviously you couldnt work your magic when dealing with the stock injectors, manifold, and intake. If this customer decides to do supporting mods dont be surprised if you 300whp by 4400 and a peak of 310-320 holding nicely to redline on 91.

I only base this off of my airboy plot, 300whp by 4400-4600 with a carry of 336 at redline (93). This due to having the manifold+uppipe, intake and 850's. Im bringing this up because the customer is really missing out. Yes, its a very small turbo, but there is much more in it even for everyday use.
STi Mikey is offline   Reply With Quote
Old 07-17-2009, 03:43 AM   #9
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

I could definately see this turbo making around 300whp with a better intake, inlet, headers, and intercooler on 91, but you can get a VF series close to that range with those supporting mods as well.

Don't get me wrong, I'm not at all saying that it's a bad turbo, I just don't see it as a signifcant upgrade over a vf series just as is the case with the 16g. Granted, I have yet to tune one on race gas with better supporting mods, so I'll reserve overall judgement for now.

Thanks
-- Ed
Equilibrium Tuning is offline   Reply With Quote
Old 07-17-2009, 11:10 AM   #10
PerformanceAutoSolutions
Former Vendor
 
Member#: 853
Join Date: Feb 2000
Chapter/Region: Tri-State
Location: Deer Park, NY, USA
Vehicle:
2011 STI Sedan
Satin White Pearl

Default

nice ed,i feel this turbo is better suited for a 2.0 ltr with the right mods she will do 330 whp on pump..

dave
PerformanceAutoSolutions is offline   Reply With Quote
Old 07-17-2009, 12:41 PM   #11
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

Maybe on 93, bu I don't see it happening on 91. Even 20g sized turbos have a hard time making 330whp on 91.

Ed
Equilibrium Tuning is offline   Reply With Quote
Old 07-17-2009, 04:43 PM   #12
Bullwinkle1983
Scooby Newbie
 
Member#: 172332
Join Date: Feb 2008
Location: St Paul, MN
Vehicle:
2006 WRX

Default

The actual road dyno numbers are low because you were tuning in 93 degree weather.

In addition, being limited by the stock 550cc injectors is a major factor. It has been seen by multiple other people (including myself) that the HTA68 typically puts down numbers between a small 18g and 20g.
Bullwinkle1983 is offline   Reply With Quote
Old 07-17-2009, 04:59 PM   #13
Dubstar112
Scooby Specialist
 
Member#: 143149
Join Date: Mar 2007
Chapter/Region: Tri-State
Location: No evo 9, no sti swap wrx
Vehicle:
2006 gmc envoy
stealth

Default

when you say "typically", do you think a setup like I have would be able to crunch into the low 300's whp and tickle 350 ftlbs? Im tuned to 323 ftlbs and 241 hp on a td04 @ EFI Logics right now.

I have:
93 oct
GT spec gen II header
38mm tial ewg
Grimm Speed BCS
HKS Catless dp
3" magnaflow exhaust
Stock intake, (for the hta I would use a silicone inlet)
(stock injectors modded to 820)
Dubstar112 is offline   Reply With Quote
Old 07-17-2009, 05:31 PM   #14
STi Mikey
Scooby Specialist
 
Member#: 114631
Join Date: May 2006
Chapter/Region: Tri-State
Location: TheShopCT / EFI LOGICS
Vehicle:
2009 GTR, 735whp
13' Benz, 15' WRX

Default

Quote:
Originally Posted by Dubstar112 View Post
when you say "typically", do you think a setup like I have would be able to crunch into the low 300's whp and tickle 350 ftlbs? Im tuned to 323 ftlbs and 241 hp on a td04 @ EFI Logics right now.

I have:
93 oct
GT spec gen II header
38mm tial ewg
Grimm Speed BCS
HKS Catless dp
3" magnaflow exhaust
Stock intake, (for the hta I would use a silicone inlet)
(stock injectors modded to 820)

Chris already made 330whp on his dyno with this turbo and a 2.5l.
STi Mikey is offline   Reply With Quote
Old 07-17-2009, 05:32 PM   #15
Equilibrium Tuning
Former Vendor
 
Member#: 26933
Join Date: Oct 2002
Chapter/Region: BAIC
Location: Fairfield, CA
Vehicle:
2006 STI
CGM

Default

Quote:
Originally Posted by Bullwinkle1983 View Post
The actual road dyno numbers are low because you were tuning in 93 degree weather.

In addition, being limited by the stock 550cc injectors is a major factor. It has been seen by multiple other people (including myself) that the HTA68 typically puts down numbers between a small 18g and 20g.
Yep, the numbers are definitely lower due to the ambient temps, but the stock injectors were flowing just barely enough fuel just like they do with a VF series.

I'm sure the turbo has more power potential than a VF, but I doubt it'll make the same power as a 20G... at least not on 91 Octane. It spools just like a big 16g and seems to flow just like a big 16g. If it looks like a duck, quacks like a duck, and walks like a duck, chances are its a duck . I just have a hard time believing in over-hyped, magical ducks....

Thanks
-- Ed

Last edited by Equilibrium Tuning; 07-17-2009 at 05:38 PM.
Equilibrium Tuning is offline   Reply With Quote
Old 07-17-2009, 05:47 PM   #16
Steve.804
Scooby Specialist
 
Member#: 68647
Join Date: Aug 2004
Chapter/Region: MAIC
Location: Richmond, VA
Vehicle:
07 STI
Rotated 35R Jorge Tuned

Default

Mikey by driving your new set-up, can you tell a huge difference between the vf-43 and the hta68?

I think if you have a TD04 this turbo would be a great upgrade as you'd probably see 80-100whp increase depending on mods and fuel. I know if I still had my 02 WRX and if this turbo was available at the time I would have gone this route over the 18G I did install. For an STI with a vf series turbo I don't see the point in going with a turbo thats any smaller than a 20G but that's just my .02
Steve.804 is offline   Reply With Quote
Old 07-17-2009, 05:50 PM   #17
Phatron
Scooby Guru
 
Member#: 36033
Join Date: Apr 2003
Chapter/Region: SCIC
Location: Tuning Lab
Vehicle:
CEO PhatBottiTuning
2006 STi GTX3582 + Meth

Default

As mikey said, i think this turbo is overly sensitive to supporting mods.

I guess thats pretty much what you'd expect from shoving gt30-esque internals into a 16g housing.

The results have been all over the place.....240whp-340whp.....

Sits back and waits for Buschurs Ultimate Rotated 400whp HTA68
Phatron is offline   Reply With Quote
Old 07-17-2009, 07:04 PM   #18
STi Mikey
Scooby Specialist
 
Member#: 114631
Join Date: May 2006
Chapter/Region: Tri-State
Location: TheShopCT / EFI LOGICS
Vehicle:
2009 GTR, 735whp
13' Benz, 15' WRX

Default

Quote:
Originally Posted by Steve.804 View Post
Mikey by driving your new set-up, can you tell a huge difference between the vf-43 and the hta68?

I think if you have a TD04 this turbo would be a great upgrade as you'd probably see 80-100whp increase depending on mods and fuel. I know if I still had my 02 WRX and if this turbo was available at the time I would have gone this route over the 18G I did install. For an STI with a vf series turbo I don't see the point in going with a turbo thats any smaller than a 20G but that's just my .02
Its exactly what I expected and exactly what I wanted it to be. It spools similar to my 43, and makes the same peak power as my stocker did on race gas, but holds 30 more to redline. And this is on pump 93 pump. I have my airboy's up, you can see them in my member's photo thread:

http://forums.nasioc.com/forums/show....php?t=1800496

I believe this turbo is fully capable of 375 whp on an airboy, and a bit more if turned up.


Phatron, there have been three hta68's done so far at the shop. The first, on another 07 STi. He had the turbo, 850's, and an exhaust. He made 5 less whp on 93 pump compared to my STOCK TURBO pump map but held 10 more at redline. The other car had and intake and had similar results. It seems, aside from injectors, that headers and an up-pipe are a must for this turbo. And no, my pump tune is actually safe, not a turn it up till its breathing on knock like some of my other tunes in the past. What I have is what the typical HTA68 car would have on a solid tune and supporting mods.

Last edited by STi Mikey; 07-17-2009 at 07:31 PM.
STi Mikey is offline   Reply With Quote
Old 07-18-2009, 11:30 AM   #19
Bullwinkle1983
Scooby Newbie
 
Member#: 172332
Join Date: Feb 2008
Location: St Paul, MN
Vehicle:
2006 WRX

Default

Quote:
Originally Posted by Vaus View Post
Yep, the numbers are definitely lower due to the ambient temps, but the stock injectors were flowing just barely enough fuel just like they do with a VF series.

I'm sure the turbo has more power potential than a VF, but I doubt it'll make the same power as a 20G... at least not on 91 Octane. It spools just like a big 16g and seems to flow just like a big 16g. If it looks like a duck, quacks like a duck, and walks like a duck, chances are its a duck . I just have a hard time believing in over-hyped, magical ducks....

Thanks
-- Ed
Hah, yes it is true this turbo has been over-hyped. However, any turbo that can spool like stock and make ~20-30 more peak WHP and hold power to redline is an A+ in my book.

The best comparo is not just numbers, it is if people swap from a stock VF39/43 to this turbo. The difference in the "power under the curve" is quite impressive.
Bullwinkle1983 is offline   Reply With Quote
Old 07-19-2009, 04:03 AM   #20
aaronzgod
Scooby Specialist
 
Member#: 196050
Join Date: Nov 2008
Chapter/Region: NESIC
Location: worcester mass
Vehicle:
2002 VF-39 Rex
02C

Default

i have a vf39 2.0 rex and my tuner is suggesting me to get this turbo and a fmic am i going to make much more power with this turbo and set up out of what u guys seen.....cauz i dont wanna pay over 2 grand for nothing between parts and install
aaronzgod is offline   Reply With Quote
Old 07-19-2009, 05:22 AM   #21
biz77
Scooby Newbie
 
Member#: 45119
Join Date: Oct 2003
Default

HTA68 seems good for about (as said) 20-30 more horsepower pump vs. pump gas numbers over a VF39/43/48. E85 or race gas and that seems to stretch out to 40-50 additional horsepower over a VF on the same fuel.

This turbo definately needs fueling mods to maximize potential.

I've been able to max stock side-feed injectors with VF39 at ~ 15 psi and pump gas (92 octane @ 11:1.) Do the top feeds flow that much more that 2 more psi at 10.7 AFR is possible?
biz77 is offline   Reply With Quote
Old 07-19-2009, 07:34 AM   #22
rubinm
Scooby Specialist
 
Member#: 63483
Join Date: Jun 2004
Chapter/Region: RMIC
Location: Ski Town USA
Vehicle:
2005 STi HTA68'd+e85
Aspen White

Default

1 word 3 times over: Injectors , Injectors, Injectors! (and a fuel pump)

yeah without fuel supporting mods an HTA68 on stock injectors is not much if anything better than a VF39 protuned.

just only so much fuel those little 565's can inject!
rubinm is offline   Reply With Quote
Old 07-19-2009, 12:34 PM   #23
rexhio
Scooby Newbie
 
Member#: 97834
Join Date: Oct 2005
Chapter/Region: MWSOC
Location: midwest
Default

What kind of numbers will a built bottom end (pistons/rods/bearings/crank) make on this turbo? I currently have a SR55 and am waiting to this turbo to arrive. I'm hoping for at least 330whp.
rexhio is offline   Reply With Quote
Old 07-19-2009, 07:44 PM   #24
HSBabyFace
Scooby Specialist
 
Member#: 130204
Join Date: Oct 2006
Chapter/Region: MAIC
Location: Lburg
Vehicle:
06 WRX IAG Built
FOR SALE!!!

Default

Quote:
Originally Posted by rexhio View Post
What kind of numbers will a built bottom end (pistons/rods/bearings/crank) make on this turbo? I currently have a SR55 and am waiting to this turbo to arrive. I'm hoping for at least 330whp.
Why are you downgrading?
HSBabyFace is offline   Reply With Quote
Old 07-19-2009, 07:57 PM   #25
STi Mikey
Scooby Specialist
 
Member#: 114631
Join Date: May 2006
Chapter/Region: Tri-State
Location: TheShopCT / EFI LOGICS
Vehicle:
2009 GTR, 735whp
13' Benz, 15' WRX

Default

Quote:
Originally Posted by rexhio View Post
What kind of numbers will a built bottom end (pistons/rods/bearings/crank) make on this turbo? I currently have a SR55 and am waiting to this turbo to arrive. I'm hoping for at least 330whp.
^^^^ yeah man, I've had both. The SR55 only made 12 more whp on pump (same boost levels) but will make 50 more on meth/race gas

??????
STi Mikey is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2005 WRX, Blouch 16G, 91 Octane = 290whp/270ft-lbs Equilibrium Tuning Proven Power Bragging 11 01-09-2013 08:13 AM
EQ Stage 1 Shortblock, EQ Stage 2 Heads, VF39 + 91 Octane = 279whp/333ft-lbs! Equilibrium Tuning Proven Power Bragging 16 01-15-2010 09:02 PM
FP Green 8cm, EWG.... 500whp on 91 Octane!! Equilibrium Tuning Proven Power Bragging 27 03-05-2008 08:02 PM
FP 18G 91 Octane Dyno Results wyowrx Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 18 09-21-2006 08:19 PM
No MTBE 91 octane vs. MTBE 91 octane wayoutwest Southern California Impreza Club Forum -- SCIC 40 08-31-2002 06:40 AM


All times are GMT -4. The time now is 09:07 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.