T3 vs T4 hotside. Whats the difference? - D-series.org

Go Back   D-series.org Motor Mayhem & Suspension Satisfaction Forced Induction

D-Series.org is the premier Honda All Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-20-2016, 08:01 PM   #1 (permalink)
D-series soldier
 
car_freak66's Avatar
 
iTrader: (5)
Join Date: Oct 2010
Posts: 789
Rep Power: 10 car_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eagle
iTrader Score: 5 reviews
Default T3 vs T4 hotside. Whats the difference?

Turbonetics T04E 50 Trim 69 AR T4 Turbo turbocharger Honda Ford 2 3 Eclipse | eBay

I found this turbonetics turbo for a good price but it has a t4 hotside. I like how the entry is in the center line of the turbo and the A/R seems to be a good size but does being a t4 flange throw that all off? Would a T4 with the same A/R as a T3 flange be a lot slower to spool? A/R is A/R regardless of flange size right?
__________________
91 hatch; Z6, P29s, 59500, Si trans zc [email protected]
91 hatch; Z6, Evo8 16g 17psi, 59500,--- [email protected]
91 hatch; Z6, Evo8 16g 14psi, rocket [email protected]
91 hatch; stock internal z6, y7 cam swap, 5431 12.6psi, - [email protected]
2009 Infinity G37; [email protected]

07 R6s; slip on, k&n, Powercomander 3, Factory pro velocity stacks, Factory Pro +4 iginition [email protected]
car_freak66 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-21-2016, 09:47 AM   #2 (permalink)
n00b
 
Misease's Avatar
 
iTrader: (0)
Join Date: Jun 2012
Location: Lincoln, Illinois
Posts: 38
Rep Power: 0 Misease will become famous soon enoughMisease will become famous soon enoughMisease will become famous soon enough
iTrader Score: 0 reviews
Send a message via Skype™ to Misease
Default

Thing is finding a quality manifold that will work with the t4 flange, But its stil all about the AR size than anything. I believe a .69 AR on a t4 would flow more than a T3 .82 though. So it just depends on your power goals. No reason imo to go t4 on anything other than a drag car.
Misease is offline   Reply With Quote Quick reply to this message
Old 02-21-2016, 12:50 PM   #3 (permalink)
D-series soldier
 
car_freak66's Avatar
 
iTrader: (5)
Join Date: Oct 2010
Posts: 789
Rep Power: 10 car_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eagle
iTrader Score: 5 reviews
Default

I know t4 is usually a larger frame turbo but this should have started out with a T3 hotside that is .65 I believe. The main difference between a T3 and T4 flange is the bolt pattern right? The exhaust hole is still the same size? A/R is from the center of the shaft to the middle of the exhaust hole, so a flange shouldnt change the flow, just a bigger flange usually means bigger A/R? I dont want to buy this and find out its super laggy. Hoping to find someone who knows a lot more about turbo specifics than I do.
__________________
91 hatch; Z6, P29s, 59500, Si trans zc [email protected]
91 hatch; Z6, Evo8 16g 17psi, 59500,--- [email protected]
91 hatch; Z6, Evo8 16g 14psi, rocket [email protected]
91 hatch; stock internal z6, y7 cam swap, 5431 12.6psi, - [email protected]
2009 Infinity G37; [email protected]

07 R6s; slip on, k&n, Powercomander 3, Factory pro velocity stacks, Factory Pro +4 iginition [email protected]
car_freak66 is offline   Reply With Quote Quick reply to this message
 
Old 02-21-2016, 01:05 PM   #4 (permalink)
D-series soldier
 
car_freak66's Avatar
 
iTrader: (5)
Join Date: Oct 2010
Posts: 789
Rep Power: 10 car_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eagle
iTrader Score: 5 reviews
Default

A little more google gave me this.

Turbo specifications explained | Master Power

A/R is a calculation. It is a number between the area shown below and radius to the center of the turbine shaft. It is meant for comparing spool-up and back-pressure characteristics. Larger numbers should mean less backpressure and later spool-up and vice versa. A/R is a good reference to spool-up when comparing housing on the same turbo as long as the area from where to take the radius is perfectly round. Compressor housings is likely to be round inside, however turbine housings is never perfectly round, it vavious a lot between turbine housings. Also be aware that you can never compare A/R between turbo models that have different wheel sizes. A/R is only for comparison in between same wheel sizes. Due to the fact that the area has to be a "round" area for the A/R figures to be valid you should obviously be very much aware of the fact that A/R is the correct linary figure for selecting your turbine housing. If not round then area and radius is no longer linary and A/R looses it purpose. Therefore only use A/R as a guide for compressor housings and not for turbine housings as turbine housings tend to have many other shapes inside than perfectly round. Always use areas cm2 instead as correct guideline for spool-up. Besides Masterpower few other manufactures such as Borg-Warner, Holset etc. also specify area on their turbine hosing for correct guidance. Many other manufactures do not. See section about "Area explained" to learn why this is so important.

Area is the correct number to correct compare both compressor housings and turbine housings. Only area is linary with spool-up when comparing housings on same wheel sizes. Most people tend to use use A/R but Area is the correct figure to use. See beneith examples of where you can go very wrong when selelcting turbine housing based on A/R and not correctly by area instead.


So baiscally its hard to say.
__________________
91 hatch; Z6, P29s, 59500, Si trans zc [email protected]
91 hatch; Z6, Evo8 16g 17psi, 59500,--- [email protected]
91 hatch; Z6, Evo8 16g 14psi, rocket [email protected]
91 hatch; stock internal z6, y7 cam swap, 5431 12.6psi, - [email protected]
2009 Infinity G37; [email protected]

07 R6s; slip on, k&n, Powercomander 3, Factory pro velocity stacks, Factory Pro +4 iginition [email protected]
car_freak66 is offline   Reply With Quote Quick reply to this message
Old 02-21-2016, 01:26 PM   #5 (permalink)
n00b
 
Misease's Avatar
 
iTrader: (0)
Join Date: Jun 2012
Location: Lincoln, Illinois
Posts: 38
Rep Power: 0 Misease will become famous soon enoughMisease will become famous soon enoughMisease will become famous soon enough
iTrader Score: 0 reviews
Send a message via Skype™ to Misease
Default

I definitely think it would work. I'm not sure on how optimal it would be. The actual turbo isnt a large frame, it just has the larger t4 exhaust flange which even though its undivided , the spool would be slower in comparison to a t3 although it would flow more iirc. If you plan to turn the car higher rpms i think it could definitely make some power. I hope you also noticed that the exhaust flange is 4 bolt which is not so common anymore. Not a bad price but it is an older turbonetics.
Misease is offline   Reply With Quote Quick reply to this message
Old 02-21-2016, 02:31 PM   #6 (permalink)
All powerful D-series member
 
Full_Tilt's Avatar
 
iTrader: (1)
Join Date: Mar 2010
Location: Jesusville, FL
Posts: 3,720
Rep Power: 29 Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !
Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !Full_Tilt is on a level you can only DREAM about! ! !
iTrader Score: 1 reviews
Default

A/R is just a ratio. You could have vastly different sized turbine housings that have the same A/R. Just like you could have vastly different sized squares. They are still have an equal width and length ratio, so theyre still squares, but can be any size.
Full_Tilt is offline   Reply With Quote Quick reply to this message
Old 02-21-2016, 04:46 PM   #7 (permalink)
the artist formerly known as drexelstudent11
 
shoebox_civic's Avatar
 
iTrader: (14)
Join Date: Mar 2007
Location: Norristown, PA
Posts: 3,983
Rep Power: 28 shoebox_civic Still a JDM Star....shoebox_civic Still a JDM Star....
shoebox_civic Still a JDM Star....shoebox_civic Still a JDM Star....
iTrader Score: 14 reviews
Send a message via AIM to shoebox_civic
Default

a 53mm turbine wheel is oversize for anything other than a full out drag car on a d-series.

that turbo is totally wrong for our cars - 48mm compressor is about right (that's a T3 super 60 wheel) but that's a 300whp compressor with a 400whp turbine, bad combo.
__________________
99 CRV
17 Q50 2.0T
07 350Z touring
90 Skyline GT-R - HKS Drager exhaust, RSR downpipe, metal wheel turbos
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
shoebox_civic is offline   Reply With Quote Quick reply to this message
Old 02-21-2016, 06:20 PM   #8 (permalink)
D-series soldier
 
car_freak66's Avatar
 
iTrader: (5)
Join Date: Oct 2010
Posts: 789
Rep Power: 10 car_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eaglecar_freak66 is fly like an eagle
iTrader Score: 5 reviews
Default

Quote:
Originally Posted by Misease View Post
I definitely think it would work. I'm not sure on how optimal it would be. The actual turbo isnt a large frame, it just has the larger t4 exhaust flange which even though its undivided , the spool would be slower in comparison to a t3 although it would flow more iirc. If you plan to turn the car higher rpms i think it could definitely make some power. I hope you also noticed that the exhaust flange is 4 bolt which is not so common anymore. Not a bad price but it is an older turbonetics.
I'm not looking for a high rpm turbo. Just trying to find a deal and if I dont by the time Im ready Ill just buy new.

Quote:
Originally Posted by Full_Tilt View Post
A/R is just a ratio. You could have vastly different sized turbine housings that have the same A/R. Just like you could have vastly different sized squares. They are still have an equal width and length ratio, so theyre still squares, but can be any size.
Yea thats sorta what I got from the master power link. You can only compare a/r to another turbo of the exact same size. Like a t25 with a .65 hotside is not the same as a GT42 with a .65 hotside. To compare you need to compare cm^2 and that will give you a much better idea than a/r.

Quote:
Originally Posted by shoebox_civic View Post
a 53mm turbine wheel is oversize for anything other than a full out drag car on a d-series.

that turbo is totally wrong for our cars - 48mm compressor is about right (that's a T3 super 60 wheel) but that's a 300whp compressor with a 400whp turbine, bad combo.
These are things I dont know. I'm basically looking for the standard 50 trim. Hoping to find a nice used one.
__________________
91 hatch; Z6, P29s, 59500, Si trans zc [email protected]
91 hatch; Z6, Evo8 16g 17psi, 59500,--- [email protected]
91 hatch; Z6, Evo8 16g 14psi, rocket [email protected]
91 hatch; stock internal z6, y7 cam swap, 5431 12.6psi, - [email protected]
2009 Infinity G37; [email protected]

07 R6s; slip on, k&n, Powercomander 3, Factory pro velocity stacks, Factory Pro +4 iginition [email protected]

Last edited by car_freak66; 02-21-2016 at 06:22 PM.
car_freak66 is offline   Reply With Quote Quick reply to this message
Old 02-28-2016, 09:51 PM   #9 (permalink)
Member
 
BiGrEd1011's Avatar
 
iTrader: (1)
Join Date: Jan 2015
Location: Daytona Beach, FL
Posts: 99
Rep Power: 5 BiGrEd1011 is learning the way of the DBiGrEd1011 is learning the way of the D
iTrader Score: 1 reviews
Default

The T3/T4 I got was .50trim compressor side and .60 trim hotside. Try looking for something around that. Its the perfect turbo for around 300-350whp. Should make for a fun little coupe
__________________
Check out my updated build page!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BiGrEd1011 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the D-series.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


iconAll times are GMT -8. The time now is 02:49 PM. | Welcome to Forum, please register to access all of our features.