VF34 or Momentum EJ5-40T - Subaru WRX Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 39 Old 10-01-2005, 09:00 AM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
VF34 or Momentum EJ5-40T

I don't know which turbo to get. Here is a list of my mods. TBE, uppipe, SR intake, TMIC, and Cobb AP. I know the cobb ap has base maps for the vf34 but I plan on getting a protune a few weeks after I install the turbo. I would like to have 300whp and a reliable turbo.
wrx904 is offline  
Sponsored Links
Advertisement
 
post #2 of 39 Old 10-01-2005, 09:37 AM
WRXtuners Member
 
Join Date: Jun 2004
Location: Virginia
Posts: 234
knot04 is an unknown
Send a message via AIM to knot04
VF34 if your gonna run the AP
knot04 is offline  
post #3 of 39 Old 10-01-2005, 10:54 AM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
Quote:
VF34 if your gonna run the AP
I am going to get a protune a few weeks after I install the turbo. If I get the 40T I was just going to run the vf34 base map until I got the protune. I found a place that will do a protune for $150 1st hour and $80 per hour after.
wrx904 is offline  
post #4 of 39 Old 10-01-2005, 02:43 PM
WRXtuners Member
 
nick4592's Avatar
 
Join Date: Sep 2005
Location: Colorado
Posts: 1,030
Images: 9
nick4592 is more helpful than not
Send a message via AIM to nick4592 Send a message via MSN to nick4592 Send a message via Yahoo to nick4592
the EJ5-40T is a much better turbo all around...you need fuel upgrades to run it safely.

"Life's a bowl of punch so go ahead and Spike it!" -311
nick4592 is offline  
post #5 of 39 Old 10-01-2005, 02:56 PM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
Quote:
the EJ5-40T is a much better turbo all around...you need fuel upgrades to run it safely.
Do you have a EJ5-40T. Is there a big difference in power from the VF34.
wrx904 is offline  
post #6 of 39 Old 10-01-2005, 03:05 PM
WRXtuners Member
 
Join Date: Oct 2005
Location: Colorado
Posts: 22
Momemtum is an unknown
Hello

TDC tuning can provide you with a accessport map for this turbo.

Brian
MT
Momemtum is offline  
post #7 of 39 Old 10-01-2005, 03:08 PM
WRXtuners Member
 
nick4592's Avatar
 
Join Date: Sep 2005
Location: Colorado
Posts: 1,030
Images: 9
nick4592 is more helpful than not
Send a message via AIM to nick4592 Send a message via MSN to nick4592 Send a message via Yahoo to nick4592
I switched from the VF 34 to the 40T (the 40T has been on my car for about 6 months now)and there is a HUGE difference between the two...I ran a 13.5 @101mph at 5400 Ft with the VF34 on race gas (105 Oct). I just ran a 13.4 @101mph at the same altitude on 91 Octane. Not only that the 40T provides power a lot faster and harder than the VF 34. Look around the web I have seen deals for the 40T and fuel system stuff.

"Life's a bowl of punch so go ahead and Spike it!" -311
nick4592 is offline  
post #8 of 39 Old 10-01-2005, 04:34 PM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
Quote:
TDC tuning can provide you with a accessport map for this turbo.
What would I need to do to get a map from them. I don't want to drive to far I live in Jacksonville, FL.

Quote:
Look around the web I have seen deals for the 40T and fuel system stuff.
I found a combo with the EJ5-40T, sti pinks, and a walbro fuel pump for $1299 free shipping.

How much psi could I get out of this turbo before it just blows hot air. Would it help if I had it port & polished.
wrx904 is offline  
post #9 of 39 Old 10-01-2005, 05:07 PM
WRXtuners Member
 
nick4592's Avatar
 
Join Date: Sep 2005
Location: Colorado
Posts: 1,030
Images: 9
nick4592 is more helpful than not
Send a message via AIM to nick4592 Send a message via MSN to nick4592 Send a message via Yahoo to nick4592
well...I have had it up to 24psi (DONT DO THAT- boost controler problem)....and it was still pulling; very scary....I use daily 18psi for 91 octane and 21 psi with 105 octane...

"Life's a bowl of punch so go ahead and Spike it!" -311
nick4592 is offline  
post #10 of 39 Old 10-01-2005, 05:24 PM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
Thats cool, so do you think I could get away with 20psi on 93 octane.
wrx904 is offline  
post #11 of 39 Old 10-01-2005, 05:43 PM
WRXtuners Member
 
nick4592's Avatar
 
Join Date: Sep 2005
Location: Colorado
Posts: 1,030
Images: 9
nick4592 is more helpful than not
Send a message via AIM to nick4592 Send a message via MSN to nick4592 Send a message via Yahoo to nick4592
oh yeah you should no issues with proper tuning running 20psi on 93 octane.

"Life's a bowl of punch so go ahead and Spike it!" -311
nick4592 is offline  
post #12 of 39 Old 10-01-2005, 06:36 PM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
Quote:
oh yeah you should no issues with proper tuning running 20psi on 93 octane
I'll tell the shop that I am going to get the protuner that I what to get 20psi. Thats amazing, I am at 16.5psi now I can not wait.
What psi is the EJ5-40T efficient up to. I see on www.momentumturbos.com that the flow rate is 580cfm. That is close to a deadbolt 18G, it has a 590cfm.
wrx904 is offline  
post #13 of 39 Old 10-01-2005, 09:18 PM
WRXtuners Member
 
nick4592's Avatar
 
Join Date: Sep 2005
Location: Colorado
Posts: 1,030
Images: 9
nick4592 is more helpful than not
Send a message via AIM to nick4592 Send a message via MSN to nick4592 Send a message via Yahoo to nick4592
Honestly I dont know the Max boost...I can find out though...

"Life's a bowl of punch so go ahead and Spike it!" -311
nick4592 is offline  
post #14 of 39 Old 10-02-2005, 12:09 AM Thread Starter
WRXtuners Member
 
Join Date: Jul 2005
Location: Florida
Posts: 57
wrx904 is an unknown
Should I get a new clutch after I install the new turbo.
wrx904 is offline  
post #15 of 39 Old 10-02-2005, 05:25 PM
WRXtuners Member
 
nick4592's Avatar
 
Join Date: Sep 2005
Location: Colorado
Posts: 1,030
Images: 9
nick4592 is more helpful than not
Send a message via AIM to nick4592 Send a message via MSN to nick4592 Send a message via Yahoo to nick4592
Quote:
Originally Posted by wrx904
Should I get a new clutch after I install the new turbo.

You should get a better/stronger than stock clutch with any power upgrade. you are looking at close to if not over 300whp with fuel mods and the EJ5-40T. A bigger intercooler wouldn't hurt but isn't needed right away.

"Life's a bowl of punch so go ahead and Spike it!" -311
nick4592 is offline  
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Trackbacks are On
Pingbacks are On
Refbacks are On