Help with compressor map - Ford Focus Forum, Ford Focus ST Forum
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace


Go Back   Ford Focus Forum, Ford Focus ST Forum > Ford Focus Tech Discussions > General Forced Induction

General Forced Induction The place to chat about turbochargers, superchargers nitrous systems and custom engine fabrications.

Search This Forum | Image Search | Advanced Search    
Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 07-05-2014, 11:23 PM   #1
HotRodWagon
CostraNostraTabasco
 
HotRodWagon's Avatar
 
Join Date: Jul 2003
Fan#: 145
Location: Born on a bayou, MN
What I Drive: 02 Infra ZTW

Posts: 2,980
Points 16,215, Level 81
Points: 16,215, Level: 81 Points: 16,215, Level: 81 Points: 16,215, Level: 81
Level Up 73% Completed
Level up: 73% Level up: 73% Level up: 73%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 25 HotRodWagon Great Standing Member
Buy-Sell-Trade Rating: (38)
Help with compressor map

Looking at this map, what can you tell me about the turbo? I am not positive about buying anything just yet, but came across this and am intrigued. I ask b/c I have to learn. thx!




HotRodWagon is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 07-06-2014, 08:09 PM   #2
iminhell
C2H5OH
 
iminhell's Avatar
 
Join Date: Jun 2006
Fan#: 36222
Location: Darwin, MN
What I Drive: 2000 & 2001 ZX3's

Posts: 10,531
Points 17,868, Level 85
Points: 17,868, Level: 85 Points: 17,868, Level: 85 Points: 17,868, Level: 85
Level Up 4% Completed
Level up: 4% Level up: 4% Level up: 4%
Forum Activity 29%
Activity: 29% Activity: 29% Activity: 29%
FF Reputation: 48 iminhell Great Standing Member
Buy-Sell-Trade Rating: (4)
I changed the #'s to HP and PSI so it's a bit easier to understand:







And here is theoretically #/Min for the zetec:




So around about 2,000 you would start spooling that turbo @ 22psi.


It's an odd map. Looks like it'd be for a small diesel and not a gas engine. Normally gas engine's don't map out to 60psi. And when they do they'll make more than 350hp.

Simply put, it's not a good turbo for a zetec.
__________________
Don't "think outside the box".
There is no box.
Do it correct, or do it twice.
iminhell is online now  
    Reply With Quote
Old 07-06-2014, 08:51 PM   #3
HotRodWagon
CostraNostraTabasco
 
HotRodWagon's Avatar
 
Join Date: Jul 2003
Fan#: 145
Location: Born on a bayou, MN
What I Drive: 02 Infra ZTW

Posts: 2,980
Points 16,215, Level 81
Points: 16,215, Level: 81 Points: 16,215, Level: 81 Points: 16,215, Level: 81
Level Up 73% Completed
Level up: 73% Level up: 73% Level up: 73%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 25 HotRodWagon Great Standing Member
Buy-Sell-Trade Rating: (38)
Well that was enlightening. Lesson learned, stick with known quantities. thx
HotRodWagon is offline  
    Reply With Quote
Old 07-06-2014, 11:06 PM   #4
iminhell
C2H5OH
 
iminhell's Avatar
 
Join Date: Jun 2006
Fan#: 36222
Location: Darwin, MN
What I Drive: 2000 & 2001 ZX3's

Posts: 10,531
Points 17,868, Level 85
Points: 17,868, Level: 85 Points: 17,868, Level: 85 Points: 17,868, Level: 85
Level Up 4% Completed
Level up: 4% Level up: 4% Level up: 4%
Forum Activity 29%
Activity: 29% Activity: 29% Activity: 29%
FF Reputation: 48 iminhell Great Standing Member
Buy-Sell-Trade Rating: (4)
Chalon, Check this link out --> http://www.turbos.bwauto.com/aftermarket/matchbot.aspx

Just leave as is and go down to the "Compressor Match" section.
Pick the "67X80".
That IMO would be a really nice DD turbo. Very responsive and good power down low. Not going to make a ton of power but should be good for around 300HP @ 30psi.

If you don't want to run that much pressure but be near that power, pick the 62K80. It's going to need more intercooler because it won't be as efficient at higher RPM. but it can do about the same power at a lower pressure.
__________________
Don't "think outside the box".
There is no box.
Do it correct, or do it twice.
iminhell is online now  
    Reply With Quote
Old 07-06-2014, 11:51 PM   #5
HotRodWagon
CostraNostraTabasco
 
HotRodWagon's Avatar
 
Join Date: Jul 2003
Fan#: 145
Location: Born on a bayou, MN
What I Drive: 02 Infra ZTW

Posts: 2,980
Points 16,215, Level 81
Points: 16,215, Level: 81 Points: 16,215, Level: 81 Points: 16,215, Level: 81
Level Up 73% Completed
Level up: 73% Level up: 73% Level up: 73%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 25 HotRodWagon Great Standing Member
Buy-Sell-Trade Rating: (38)
I am familiar with the EFR's. Been looking at them for some time now, and agree the 6758 is a nice piece. The price is holding me back. Oddly enough the 6258 and 6758 are the same price.

Things about money...money about things. Not ruling anything out just yet. Thanks for the tip.
HotRodWagon is offline  
    Reply With Quote
Old 07-07-2014, 01:21 AM   #6
iminhell
C2H5OH
 
iminhell's Avatar
 
Join Date: Jun 2006
Fan#: 36222
Location: Darwin, MN
What I Drive: 2000 & 2001 ZX3's

Posts: 10,531
Points 17,868, Level 85
Points: 17,868, Level: 85 Points: 17,868, Level: 85 Points: 17,868, Level: 85
Level Up 4% Completed
Level up: 4% Level up: 4% Level up: 4%
Forum Activity 29%
Activity: 29% Activity: 29% Activity: 29%
FF Reputation: 48 iminhell Great Standing Member
Buy-Sell-Trade Rating: (4)
Oh I know what ya mean, my tree is still in it's infancy ... and wilting.

But take note of how they plot over the compressor map. That plot is actually based off the exhaust side. Or in other words, the exhaust side is just as important as the intake, if not moreso.
It has to do with how much 'work' the exhaust can impart on the turbine. Too little ex energy or to large of wheel (or A/R) and you won't even spin a small compressor up to speed.
So take note of that recommenced turbine A/R and wheel size. That combined with the intake wheel size should give you an approximate range to stay within.
Then you can use that info to take your chances with a similarly sized turbo from a different company.
The things that will be different with a different company are the weights of the wheels and maybe the pitch of the blades. So don't expect equal results, but similar shouldn't be too tough to get.
__________________
Don't "think outside the box".
There is no box.
Do it correct, or do it twice.
iminhell is online now  
    Reply With Quote
Reply

Bookmarks & Social Networks

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


All times are GMT -5. The time now is 09:57 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.