Welcome to the North American Subaru Impreza Owners Club Wednesday August 20, 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 > Built Motor Discussion

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 04-16-2006, 08:13 PM   #1
DickWRX
Scooby Specialist
 
Member#: 60590
Join Date: Apr 2004
Chapter/Region: MWSOC
Location: Schaumburg
Default Helix cams,people whu run them opinoins please!

Hey

I am am building a new motor, I am going with EJ257, P&P WRX heads along with cams. Looking @ the price of Helix they cannot be passed over,I did a search but all I got is bitching about the packing.

I would like to get feedback from people who run them. Are they true 264 or just labeled 264. Are they ok to use or should I just save up and go with DPR or cosworth?

Thank you

Rich
* Registered users of the site do not see these ads.
DickWRX is offline   Reply With Quote
Old 04-16-2006, 08:44 PM   #2
sonic rx
Scooby Specialist
 
Member#: 33457
Join Date: Feb 2003
Chapter/Region: PRSIC
Location: 430 whp & 400 wtq 22 psi 93oct
Vehicle:
HAHA EVERYONE KNOWS
DYNO JET IS NOT REAL WHP

Default

Quote:
Originally Posted by DickWRX
Hey

I am am building a new motor, I am going with EJ257, P&P WRX heads along with cams. Looking @ the price of Helix they cannot be passed over,I did a search but all I got is bitching about the packing.

I would like to get feedback from people who run them. Are they true 264 or just labeled 264. Are they ok to use or should I just save up and go with DPR or cosworth?

Thank you

Rich

i will let ya know pretty soon. i to am running a modded 2.5l with p&ped heads with raduis grinds,and 264 cams. i do know they are true 264 cams





sonic rx is offline   Reply With Quote
Old 04-16-2006, 08:52 PM   #3
jigga
Scooby Guru
 
Member#: 9960
Join Date: Sep 2001
Location: in bed...
Vehicle:
2002 Impreza WRX
WRBlue Perl

Default

purty
jigga is offline   Reply With Quote
Old 04-17-2006, 01:27 AM   #4
02Toyowrx
Scooby Newbie
 
Member#: 56520
Join Date: Mar 2004
Vehicle:
2002 WRX
White

Default

True 264.... this phrasing does not make sense.. its either 264 or not.

264 degrees of duration, 272 degrees of duration, or 280 degrees of duration..
Dealing with the JDM/Euro market cams are measured at .010"
In the US most cam grinders measure cams at .050" which is more accurate of a number.
So although a cam with the duration measured at .010" and has 264 degrees of duration, if this same cam was measured at .050" the duration would approx be about 225 degrees (if you are speaking directly of subaru turbo cams).
02Toyowrx is offline   Reply With Quote
Old 04-17-2006, 02:39 AM   #5
banzai
Scooby Specialist
 
Member#: 63926
Join Date: Jun 2004
Chapter/Region: MWSOC
Location: Sun City KS.
Vehicle:
Axis /RAW 2.2 Closed
deck EJ 20G stroker

Default

there is this post ...

http://forums.nasioc.com/forums/show...9&postcount=43

this thread:

http://forums.nasioc.com/forums/showthread.php?t=954775

this post:

http://forums.nasioc.com/forums/show...0&postcount=14

contained in this thread:

http://forums.nasioc.com/forums/showthread.php?t=981874

i am very happy with my helix cams. gobs of midrange power, which is where i want it.
banzai is offline   Reply With Quote
Old 04-17-2006, 11:56 AM   #6
303WRX
Scooby Newbie
 
Member#: 35097
Join Date: Apr 2003
Chapter/Region: RMIC
Location: Thornton, CO
Vehicle:
2002 WRX Sedan
PSM

Default

I'm interested in the Helix camshafts as well, but buying something that is so new on the market makes me very nervous. The first people that used DPR and Crower camshafts had quite a few problems them. It took DPR and Crower a while to work out the "bugs." I would hate to get stuck having problems with the Helix cams after spending a lot of time and money putting them in. At this point I think I'm going to save up and go with the DPRs. They're proven to make power and be reliable.
303WRX is offline   Reply With Quote
Old 04-17-2006, 12:41 PM   #7
02Toyowrx
Scooby Newbie
 
Member#: 56520
Join Date: Mar 2004
Vehicle:
2002 WRX
White

Default

These cams arent AVCS, so they shouldnt have a problem.
Something to think about they are designed for the 2.0L (different Lobe seperation). They will work with a wrx/STI combo, but not to the fullest potential a cam could offer for a 2.5L application.
Helix cam lift= .377" stock USDM 2.5L STI cam lift= .380"
so for a 2.5L you arent gaining airflow, but you should get a better powerband.
02Toyowrx is offline   Reply With Quote
Old 04-18-2006, 08:52 AM   #8
sonic rx
Scooby Specialist
 
Member#: 33457
Join Date: Feb 2003
Chapter/Region: PRSIC
Location: 430 whp & 400 wtq 22 psi 93oct
Vehicle:
HAHA EVERYONE KNOWS
DYNO JET IS NOT REAL WHP

Default

Quote:
Originally Posted by 02Toyowrx
These cams arent AVCS, so they shouldnt have a problem.
Something to think about they are designed for the 2.0L (different Lobe seperation). They will work with a wrx/STI combo, but not to the fullest potential a cam could offer for a 2.5L application.
Helix cam lift= .377" stock USDM 2.5L STI cam lift= .380"
so for a 2.5L you arent gaining airflow, but you should get a better powerband.


helix 264 is a .413" lift and .222" at .050 mine are installed in p&ped heads with radius grind. i bet i will increase airflow big time alot more than the sti cams for sure. the are cams you are quoting lift on have a duration of 264,and 272 they have a .377,and .403 lift and at .050 they are 222,232 lift

Last edited by sonic rx; 04-18-2006 at 08:59 AM.
sonic rx is offline   Reply With Quote
Old 04-18-2006, 01:10 PM   #9
banzai
Scooby Specialist
 
Member#: 63926
Join Date: Jun 2004
Chapter/Region: MWSOC
Location: Sun City KS.
Vehicle:
Axis /RAW 2.2 Closed
deck EJ 20G stroker

Default

if you check www.helix-power.com they are working on a AVCS cam.
banzai is offline   Reply With Quote
Old 04-18-2006, 01:27 PM   #10
02Toyowrx
Scooby Newbie
 
Member#: 56520
Join Date: Mar 2004
Vehicle:
2002 WRX
White

Default

Quote:
Originally Posted by sonic rx
helix 264 is a .413" lift and .222" at .050 mine are installed in p&ped heads with radius grind. i bet i will increase airflow big time alot more than the sti cams for sure. the are cams you are quoting lift on have a duration of 264,and 272 they have a .377,and .403 lift and at .050 they are 222,232 lift

9.6mm lift= .377" of lift. This is what is quoted on the helix website.
02Toyowrx is offline   Reply With Quote
Old 04-18-2006, 02:09 PM   #11
sonic rx
Scooby Specialist
 
Member#: 33457
Join Date: Feb 2003
Chapter/Region: PRSIC
Location: 430 whp & 400 wtq 22 psi 93oct
Vehicle:
HAHA EVERYONE KNOWS
DYNO JET IS NOT REAL WHP

Default

Quote:
Originally Posted by 02Toyowrx
9.6mm lift= .377" of lift. This is what is quoted on the helix website.

i looked at thhe site and found no info. which site did you go to mine were checked at the shop that worked the heads.i supplied all my own stuff.so the #'s given to me were not padded
sonic rx 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
2006 WRX Turbo Combos, Forged internals, Helix Injectors, Helix Cams, & More!!! Gruppe-S Engine/Power/Exhaust 9 08-30-2006 09:30 PM
Helix Injectors, VF22s, VF34s, Helix DPs, Helix Cams, cheap accessories all in stock! Gruppe-S Engine/Power/Exhaust 11 08-29-2006 08:11 PM
Helix Cams back in stock - $519 Shipped! STi Mounts! Cobb APs in stock! Helix DPs! Gruppe-S Engine/Power/Exhaust 3 07-31-2006 06:59 PM
STi Helix Injectors back in stock! Helix Cams for EJ20, built motors, much more! Gruppe-S Engine/Power/Exhaust 32 02-09-2006 04:00 PM
Holy hell these people know how to get people to allow them to meet with them. aod Off-Topic 11 03-02-2005 03:13 PM


All times are GMT -4. The time now is 03:51 AM.


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.