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01-30-2007, 01:18 PM | #101 | |
Scooby Newbie
Member#: 92783
Join Date: Aug 2005
Chapter/Region:
NWIC
Location: Puyallup, WA
Vehicle:2004 WRX WRB |
Quote:
Awesome Build Jeff!! I have even more respect for you now that I see you did alot of the work yourself. I saw this car at Subiefest and shook your hand but I had no idea how much work you yourself actually put into it. Awesome!
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01-30-2007, 02:59 PM | #102 |
Scooby Specialist
Member#: 57871
Join Date: Mar 2004
Chapter/Region:
NESIC
Location: Windham,Maine
Vehicle:2004 WRX 13.4 @ 102 |
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01-30-2007, 03:55 PM | #103 |
Scooby Guru
Member#: 92582
Join Date: Aug 2005
Chapter/Region:
MWSOC
Location: IA
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I might have already posted here before, but it deserves twice if I already did. Amazing job, and I can't wait to see what kind of times it throws down. Looking forward to seeing it run!
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01-30-2007, 04:03 PM | #104 |
Scooby Newbie
Member#: 77352
Join Date: Dec 2004
Chapter/Region:
SCIC
Location: Long Beach, CA
Vehicle:2001 GC8 Panda |
can i have it?
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01-30-2007, 04:03 PM | #105 |
Scooby Guru
Member#: 113734
Join Date: Apr 2006
Chapter/Region:
South East
Location: Charleston SC
Vehicle:2023 FL5 Type R Subaruless |
I know I am running the Hydra myself
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01-30-2007, 08:00 PM | #106 |
Scooby Specialist
Member#: 74110
Join Date: Nov 2004
Location: PERRIN Performance
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STIStalker,
Ya that is long before the final build. It was plenty fast then, and even scarier now! Thanks for the comments! Like any PERRIN shop car you see, it was built by us. See you at Subiefest2! aps2fast4u, You will see something at Subiefest2. SCOOBIEdoo, Maybe in August when the 08's come out! It will be for sale then. PSM-04-STi, Love the Hydra, and many things about it, but they just have to get rid of the Orange and we are all good. |
01-31-2007, 12:24 PM | #107 |
Scooby Specialist
Member#: 71658
Join Date: Oct 2004
Chapter/Region:
MWSOC
Location: Duluth, MN
Vehicle:'84 Brat 4" lift and 29" tires |
what I want to know, is what the rest of the engine (other than the one piston) looked like after the original build. as in, would that be a viable option for long-term? how about with a little less boost and a little higher CR? like, 10-12psi and 9.0:1....bet it would make for a killer torque curve
this gets me thinking and dreaming in a way that words can't describe....congrats on an awesome build!!!!! |
02-01-2007, 01:12 PM | #108 |
Scooby Newbie
Member#: 86036
Join Date: Apr 2005
Chapter/Region:
MAIC
Location: MD Route 50
Vehicle:'16 Explorer Sport Pearl White |
You are living the life
I think that ever since they came out everyone has been dreaming of the EZ30 build, but few are actually able to jump into things like that.
Thanks for having the Ba**s to put your car out there and see what happens, very nice write up for an even nicer build. Good luck with the '08 build, and hopefully it will be much easier now! Props to doing something different, and opening doors for the rest of us by getting the parts flowing! I just droped an '07 STI Longblock into my '02 WRX, and as soon as I get the first 1,000 out of the way (about another week) I will be throwing on an FP green and getting tuned, I can't wait for the results! |
02-02-2007, 08:46 AM | #109 |
Scooby Newbie
Member#: 120773
Join Date: Jul 2006
Location: Brisbane - Australia
Vehicle:1997 Liberty 3012cc H6 + GT4088 |
sorry jeff, I have to post it...
this is how we roll in Aus. modified semi closed deck EZ30... instead of sleeves. |
02-02-2007, 09:28 AM | #110 |
Scooby Specialist
Member#: 71658
Join Date: Oct 2004
Chapter/Region:
MWSOC
Location: Duluth, MN
Vehicle:'84 Brat 4" lift and 29" tires |
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02-02-2007, 09:51 AM | #111 |
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Member#: 62580
Join Date: May 2004
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02-02-2007, 10:15 AM | #112 |
Scooby Guru
Member#: 177
Join Date: Aug 1999
Chapter/Region:
NWIC
Location: Austin, Texas, USA
Vehicle:The 93 W/EJ20K-sold Subaru-less :( |
/whoo hoo thread jack
hmm i know the sand rail guys have been doing this for years with the ej25e the real question is semi-closing or sleeving stronger/more cost effective |
02-02-2007, 11:48 AM | #113 |
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Member#: 74110
Join Date: Nov 2004
Location: PERRIN Performance
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Numbchux,
The other engine was perfectly fine, and that is what i used to build what you see today. Bearings, sleeves, and all that were just fine. The pistons were perfectly but they were Supertech forged pistons. The rods were fine, but as Jeff Sponaugle found out, they are a weak link. But if you wanted to run the engine stock, i think you could do 400WHP, but it would be on the verge of blowing up! Going up a little in compression would be fine, but in the end it would limit the amount of boost or power you would get from pump fuel. But on race fuel, that would be a good combo. The compression ratio we went with is 8.5-1, and with the slightly shorter deck, and heads being milled a little is is somewhere between 8.7 and 8.5. '02NBLUE, Balls is easy, i think many people have the drive to do it, but Money! That is the biggest part of this project that people going into it may not quite grasp until you get deep into the project. The cost to do rods and pistons is not too much more than a 4 banger, but when sleeves, and all those other things like headers, and the other custom parts, really add up. Then add labor from someone else doing the work, and the $$ go up quick. For me personally, being able to do all the work cut a huge cost out of it. But a customer walking into a speed shop, saying i want the H6, that is a huge cost to think about. I don't want to scare people away from doing this, but just to be aware if they are paying someone else to do the work. Good luck with your build! It will be a huge difference with more displacment, and bigger turbo! myliberty, Very nice looking! If there was only more time, we would have left the OEM sleeves and seen what happens. But time forced the sleeves apon us. No big deal, it just adds a little more durability to the build. The OEM sleeves are about 2/3 the thickness of the STI sleeves. This is just the Iron part of the sleeve. The aluminum part of the sleeve is also smaller than the STI, but HP per cylinder is still lower than the STI, so it should hold up. Key word there..... SHOULD. Sleeving is stronger, but is it necessary is the question. Jeff Sponaugles engine is going to be all put together tonight, and testing will begin! It is nice to see others doing this build, but i think this deserves it own thread. If i decided to build a second block, it will be nothing more than stock sleeves, pistons and rods. I think for 500 daily WHP this is plenty. My-STI-Rules, This method is a great alternative to sleeves. The Honda world has been doing this forever and it is very well proven. Normally it is a simple insert that is pressed into the block, then welded, then machined. The above version looks like some blocks added for webbing, then welded then machined. I do like this, and it would save about $3000 for the build. |
02-02-2007, 03:25 PM | #114 |
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Member#: 71658
Join Date: Oct 2004
Chapter/Region:
MWSOC
Location: Duluth, MN
Vehicle:'84 Brat 4" lift and 29" tires |
I'm not looking for even 400 whp. nor would I want stock compression, I really like what you've done, but that torque curve makes me cringe.....
but, one more question, it looks like STi rods might work....is this true? did you try them? that's the one thing I haven't been able to get good info, is the rod dimensions. |
02-02-2007, 03:27 PM | #115 |
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Join Date: Apr 2003
Chapter/Region:
Tri-State
Location: Philly burbs
Vehicle:HA HA! Cookies on dowels! |
I didn't see listed, but what are you using for drive line components? I assume a stock STi 6-speed is the tranny, but anything special for drive shafts/axles?
-Cliff |
02-02-2007, 03:36 PM | #116 |
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Member#: 21641
Join Date: Jul 2002
Chapter/Region:
International
Vehicle:4EAT [email protected] Now a 6MT! beyatch! |
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02-02-2007, 04:17 PM | #117 | |
Scooby Specialist
Member#: 4498
Join Date: Feb 2001
Chapter/Region:
NWIC
Location: Portland, Oregon
Vehicle:WRX H6-3.0 Turbo www.surgelinetuning.com |
Quote:
The H6 rods we had made are the same length as the stock rods. Given the cost of getting the rods made, you could just use an STI length rod, and have a custom piston made to the right compression height and pin size. Jeff Sponaugle |
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02-02-2007, 04:49 PM | #118 | |
Scooby Specialist
Member#: 71658
Join Date: Oct 2004
Chapter/Region:
MWSOC
Location: Duluth, MN
Vehicle:'84 Brat 4" lift and 29" tires |
Quote:
Thanks!! |
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02-02-2007, 11:27 PM | #119 | |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
Quote:
that is all. continue with technical discussion. Ben |
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02-03-2007, 12:27 AM | #120 |
Scooby Newbie
Member#: 139596
Join Date: Feb 2007
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BAIC
Location: M-Town
Vehicle:2006 Subaru WRX STi Aspen White |
its nice to see suby's hitting 550hp, soon we will be up there with supras breaking 1000s
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02-03-2007, 02:11 AM | #121 |
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Location: SoCal
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Not to be too pedantic, but it's probably more meaningfull to think in terms of BMEP, or boost vs. timing, than hp/cyl. The reason is that, although these cylinders have less hp each, they are also each smaller, so that physical force is spread out over less space.
Imagine if you tried to get 100 hp/cyl out of a 2cc model airplane engine or something. Even hp/liter is more usefull when talking about how physically-stressed an engine is, for that reason. |
02-03-2007, 02:52 AM | #122 |
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Very thorough write up, im very impressed with what you have managed to achieve. congrats! Some vids with some roll ons and incar footage would be awesome.
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02-04-2007, 01:08 AM | #123 | |
Scooby Guru
Member#: 13617
Join Date: Dec 2001
Chapter/Region:
MWSOC
Location: MN
Vehicle:2001 Legacy GT back to stock is a project too |
Quote:
I'll leave the calculations up to you cause you are the smart one. Or maybe I missed your point? Ben |
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02-04-2007, 03:09 AM | #124 | |
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Member#: 67608
Join Date: Aug 2004
Location: SoCal
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Quote:
Don't need to worry about square inches. The twist of the crank will also affect it; not just the pressure. So the best method is probably hp/liter ... or maybe torque/liter. Either way. Back to the regular discussion. |
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02-04-2007, 05:52 PM | #125 | |
Scooby Specialist
Member#: 4498
Join Date: Feb 2001
Chapter/Region:
NWIC
Location: Portland, Oregon
Vehicle:WRX H6-3.0 Turbo www.surgelinetuning.com |
Quote:
5.180" long (center to center) .8665" small end diameter 2.1650 big end diameter STI Rods: 5.138" long (center to center) .905" small end diameter 2.1650" big end diameter Note the H6 rod length is the same as the 2000+ SOHC 2.5L non-turbo rods. However the small end diameter is smaller then any other Subaru rod I know of. So you could use US STI rods, but you would need to get a custom piston that us the STI pin diameter as well as a custom comp height since the rod is a bit shorter. Jeff Sponaugle |
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