Welcome to the North American Subaru Impreza Owners Club Sunday July 13, 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 Technical > Normally Aspirated with bolt-on Forced Induction Powertrain

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 04-26-2002, 12:09 PM   #1
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Arrow I am going to order rods today and I would like some suggestions.

Hey guys, I'm going to order some rods today but I need some quick help. Should I go with Pauter? Crower? My internal n00b is gonna show here... i did a search and i read "X-pattern and H-pattern." whats the difference between X-pattern and H-pattern? which should i get? which can handle the most torque/horsepower? what kind of price difference is there between the two?

Thanks,
Andrew


yes i did a search but i never found a reason to get one over the other, maybe i missed that thread... if so just direct me to it.


oh yeah do i need to know any specifics to give them? stroke? journal sizes? or will they know that stuff already.
* Registered users of the site do not see these ads.
Andrew is offline   Reply With Quote
Old 04-26-2002, 12:31 PM   #2
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Carrillo H design -


Crower I design -


You don't necessarily want to find out what is the best horsepower rod, you'll want to know what the best torque handling rod there is. Torque is what bends rods, horsepower is what screws up bearings and breaks bolts (well, as a generalization at least).

What type of horsepower/torque are you looking to run? I don't think it matters much what design you're using unless you're looking to go over the 400 ft.lb./torque mark or so, just so long as the bearings are all capable of withstanding the loads and are tight on tolerances.
8Complex is offline   Reply With Quote
Old 04-26-2002, 12:31 PM   #3
AaronB
Worst Mod Ever
Moderator
 
Member#: 369
Join Date: Oct 1999
Chapter/Region: SWIC
Location: Phoenix, AZ
Vehicle:
12 Vagon

Exclamation

Be careful if you go with pauter. I am not sure if the wiseco pistons or pauter rods were the incorrect length, but one half of the combo was a fraction of an inch too long, and pushed the piston crown above the deck of the block. This was causing the pistons the hit the head on my block. I had to get the pistons machined to correct it.

And don't order from a certain SoCal vendor...

Those are my two pieces of advice.

Regards,

Aaron
AaronB is offline   Reply With Quote
Old 04-26-2002, 12:38 PM   #4
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Default

i would like to push 400 but thats in the future...maybe. im not even sure if i want to go crazy with the engine or not. right now it has bad rings and thats why im opening it up. im also sticking in JE pistons in 100mm and 9:1 and plan to put in a Link2 as well and run 10-12psi. im still wondering if i really NEED rods but id rather shoot for overkill, but am not sure if im shooting too far.
Andrew is offline   Reply With Quote
Old 04-26-2002, 12:42 PM   #5
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Out of curiousity, where did you get the pistons and how much (if you don't mind me asking) did you get them for? I've been toying with the idea of building up a block... I just need to get pricing for internals.
8Complex is offline   Reply With Quote
Old 04-26-2002, 12:43 PM   #6
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Default

i went to www.jepistons.com and called them up. it was as simple as that. i cant remember the exact price but it was ~700 for rings, pins, pistons.
Andrew is offline   Reply With Quote
Old 04-26-2002, 01:26 PM   #7
Happy
Scooby Newbie
 
Member#: 12115
Join Date: Nov 2001
Default

When you're talking the quality of Carrillo, Crower, Arrow, etc', and circa 400ftlbs, I wouldn't worry about "H", or "I".

I've been told that "I" section are the strongest, and that's what I use. They've seen over 500ftlbs, so I'm happy (np pun intended

Make sure you get the rods/pistons balanced (weighed), as well as the crank, front pully, FW.

If you're building the engine yourself, make sure you check EVERY tollerance, then double check them. DON'T assume that because parts are new, they will be right. Plasti gauge all the barings.

Happy.
Happy is offline   Reply With Quote
Old 04-26-2002, 03:33 PM   #8
Sean McElderry
Scooby Specialist
 
Member#: 526
Join Date: Nov 1999
Location: Beaverton, OR, USA
Vehicle:
1995 Supra Turbo
Red

Default

JE Pistons and Crower rods. Great combo.

Sean
Sean McElderry is offline   Reply With Quote
Old 04-26-2002, 07:38 PM   #9
outback motorsports
Scooby Newbie
 
Member#: 4084
Join Date: Feb 2001
Location: buena park, ca.
Default rods

try ours,they're pauter style $525 a set .48 mm we have piston sets also.w/turbo rings
outback motorsports is offline   Reply With Quote
Old 04-26-2002, 08:38 PM   #10
boysetsfire
Scooby Specialist
 
Member#: 6218
Join Date: Apr 2001
Chapter/Region: SCIC
Location: Agoura, California
Vehicle:
2001 2.5rs-t
silverthorn metallic

Default

i got my je pistons through this place called suby specialties and they were only like 500 i think then another 100 to machine them.
boysetsfire is offline   Reply With Quote
Old 04-26-2002, 08:50 PM   #11
STiTuner
Scooby Specialist
 
Member#: 5778
Join Date: Apr 2001
Chapter/Region: South East
Vehicle:
09 135i
Jet Black

Default

*coughs
COBB
*cough

Brad
STiTuner is offline   Reply With Quote
Old 04-27-2002, 03:46 AM   #12
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

What about Paeco?
8Complex is offline   Reply With Quote
Old 04-27-2002, 03:58 AM   #13
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Default

paeco is more expensive than the more major name brands so id rather go with major named brands...
Andrew is offline   Reply With Quote
Old 04-27-2002, 12:35 PM   #14
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

Wow, I always thought they were cheaper. Damn, I need sponsorship.
8Complex is offline   Reply With Quote
Old 04-27-2002, 02:52 PM   #15
Graham
Scooby Specialist
 
Member#: 11931
Join Date: Nov 2001
Location: Winter Park, FL/ SMU @ Dallas,
Vehicle:
2001 2.5 RS Turbo
257/FMIC/T3-T04S

Default

Brad, COBB pistons are just JE's, except you order through them and get exactly what size you need.

They can also do any compression ratio you want.

If I ever get pistons, it'll be through COBB.

Graham
Graham is offline   Reply With Quote
Old 04-27-2002, 03:06 PM   #16
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

FWIW, our pistons ARE made by JE but they are of our own design. If you buy the JE off-the-shelf piston and compare it to ours (which we have JE make for us due to their superb quality and workmanship) they are very much different in critical design aspects.

Either way, you get a good piston.

As for rods, be careful with the Pauter. Not only are they too long for most late model EJ25 engines (+0.025" - 0.035"), they also may create some clearance problems where they hit points internal in the block. They are also very heavy compared to other rods on the market.

I don't want to go on speaking badly about other products. My advice would just to measure everything VERY carefully when you're putting things together. Otherwise, you could end up with a very expensive "bang-rattle-rattle" the first time you turn over your new engine.

Simply because someone has a part available doesn't necessarily mean they've done the research to verify that part really does the job it should. Something that happens ALL too frequently in this industry.

Best of luck,
Trey Cobb
COBB Tuning
www.cobbtuning.com
Cobb Tuning is offline   Reply With Quote
Old 04-29-2002, 02:18 PM   #17
zaidallas
Scooby Specialist
 
Member#: 4106
Join Date: Feb 2001
Location: Expected whp/torque at 25 psi : 450
Default

Quote:
Originally posted by Cobb Tuning


As for rods, be careful with the Pauter. Not only are they too long for most late model EJ25 engines (+0.025" - 0.035"), they also may create some clearance problems where they hit points internal in the block. They are also very heavy compared to other rods on the market.

Trey's reputation speaks for itself , also I myself stress on what he said up there , believe me ! If there's waiting list for crower , get on it and save yourself money and trouble.
zaidoun
zaidallas is offline   Reply With Quote
Old 04-29-2002, 04:21 PM   #18
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Default

hey guys, i just said forget it and ordered from cobb. they know their **** so im not worried abotu fitment, etc. it wasnt very cheap but at least my mind will be at peace.

Last edited by Andrew; 04-29-2002 at 04:34 PM.
Andrew 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
Looking to buy a Forester, would like some suggestions Lesya Tri-State Area Forum 20 10-12-2005 11:44 AM
Going to boston on tuesday and would like some help from the locals. Red04WRX New England Impreza Club Forum -- NESIC 11 04-25-2005 12:50 PM
Breckenridge folks - would like some suggestions cboggess Rocky Mountains Impreza Club Forum -- RMIC 13 08-30-2004 12:09 PM
Buying a new Subaru and I would like some input ColdChillin New England Impreza Club Forum -- NESIC 15 07-01-2004 06:00 PM
ATTN!!! I am going to San Diego TODAY! (Sunday) Jimmy S. Southern California Impreza Club Forum -- SCIC 8 07-22-2002 01:11 PM


All times are GMT -4. The time now is 02:01 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.