Small Turbo Comparison
Evolved Member
Joined: Nov 2014
Posts: 563
Likes: 40
From: Cyprus
Yes, I'm agree with you, but the problem, in this term, is how the flowing map is close to the real word. Clearly theoretical models and reality does not fit at 100%, especially in nonlinear problems. On the other side it's not possible to test every turbo until to find the right one, and the flowing map represent the only way to proper estimate the turbocompressor-engine coupling. But, I repeat that my intention, was to propose an immediate way to compare compressor with different technology applied over the years. Turbo-machines is a research field of specialist. Finally, nothing wrong with your post, i really appreciate the competent people. I was just making sure MY posts were not unpolished since the lot of people say that, maybe there something of very strange in my english. 
The advertised compressor map for each turbo , especially by garrett, is based on the turbine wheel used in combination. The rule of thumb in real world terms is that the same wheel with a different turbine wheel, i.e bigger, will flow more.
No one said you need to test every turbo there is in the specific category of the turbo you would like to use. There is an abundance of knowledge and info around and online, that you will most likely find everything you need to know about the turbos you want as someone else has already tried it and if they haven't they will soon.
Besides, technology might have evolved on turbochargers but the last 5 years or so, turbo manufacturers are basically just repeating themselves, it seems that progress has come to a halt.
As I previously said, well done for the graph and it was obvious from the first look at it as to why you did it, so do not worry about that.
Again, compressor maps are useful but are just a good point of reference that does have a relation to reality but not an absolute one, yes they can be useful. Most turbo companies do not give out compressor maps, Forced Performance and Precision are two of them, yet they supplied and continue to supply most evos with their turbos. People are not concerned too much with compressor maps, they are more into getting real life data. Then comes Garrett and BW. Also most world records have been achieved on FP and PTE turbos.
I run a custom turbo on my car, built to my specifics by a non so known company.
Cheers for the conversation, and if I am ever again in Tuscany maybe I will bump into you and your evo.
Marios
Thread Starter
Newbie
Joined: Jan 2018
Posts: 32
Likes: 1
From: Tuscany
The advertised compressor map for each turbo , especially by garrett, is based on the turbine wheel used in combination. The rule of thumb in real world terms is that the same wheel with a different turbine wheel, i.e bigger, will flow more.
No one said you need to test every turbo there is in the specific category of the turbo you would like to use. There is an abundance of knowledge and info around and online, that you will most likely find everything you need to know about the turbos you want as someone else has already tried it and if they haven't they will soon.
Besides, technology might have evolved on turbochargers but the last 5 years or so, turbo manufacturers are basically just repeating themselves, it seems that progress has come to a halt.
As I previously said, well done for the graph and it was obvious from the first look at it as to why you did it, so do not worry about that.
Again, compressor maps are useful but are just a good point of reference that does have a relation to reality but not an absolute one, yes they can be useful. Most turbo companies do not give out compressor maps, Forced Performance and Precision are two of them, yet they supplied and continue to supply most evos with their turbos. People are not concerned too much with compressor maps, they are more into getting real life data. Then comes Garrett and BW. Also most world records have been achieved on FP and PTE turbos.
I run a custom turbo on my car, built to my specifics by a non so known company.
Cheers for the conversation, and if I am ever again in Tuscany maybe I will bump into you and your evo.
Marios
No one said you need to test every turbo there is in the specific category of the turbo you would like to use. There is an abundance of knowledge and info around and online, that you will most likely find everything you need to know about the turbos you want as someone else has already tried it and if they haven't they will soon.
Besides, technology might have evolved on turbochargers but the last 5 years or so, turbo manufacturers are basically just repeating themselves, it seems that progress has come to a halt.
As I previously said, well done for the graph and it was obvious from the first look at it as to why you did it, so do not worry about that.
Again, compressor maps are useful but are just a good point of reference that does have a relation to reality but not an absolute one, yes they can be useful. Most turbo companies do not give out compressor maps, Forced Performance and Precision are two of them, yet they supplied and continue to supply most evos with their turbos. People are not concerned too much with compressor maps, they are more into getting real life data. Then comes Garrett and BW. Also most world records have been achieved on FP and PTE turbos.
I run a custom turbo on my car, built to my specifics by a non so known company.
Cheers for the conversation, and if I am ever again in Tuscany maybe I will bump into you and your evo.
Marios
Unfortunately no information are available for my g25-660, and I based the specification of my kit on Garrett Tables only. Someone have to try it right?
As for your visit to Tuscany, it would be great, a nice ride at the mugello circuit! Send me a message if you coming
Thread Starter
Newbie
Joined: Jan 2018
Posts: 32
Likes: 1
From: Tuscany
Evolved Member
Joined: Mar 2012
Posts: 1,185
Likes: 261
From: New York
I just keep wondering if there is a magical turbo hiding under the legend
Interesting to see the new technology popping out like that. Obviously that modern CFD makes a big difference. When they made turbos in the 50's it was probably all trial and error and "yeah that looks like it will work"....
Interesting to see the new technology popping out like that. Obviously that modern CFD makes a big difference. When they made turbos in the 50's it was probably all trial and error and "yeah that looks like it will work"....
Evolved Member
Joined: Nov 2014
Posts: 563
Likes: 40
From: Cyprus
Will do my friend, enjoy your evo!
Marios
Evolved Member
Joined: Nov 2014
Posts: 563
Likes: 40
From: Cyprus
I just keep wondering if there is a magical turbo hiding under the legend
Interesting to see the new technology popping out like that. Obviously that modern CFD makes a big difference. When they made turbos in the 50's it was probably all trial and error and "yeah that looks like it will work"....
Interesting to see the new technology popping out like that. Obviously that modern CFD makes a big difference. When they made turbos in the 50's it was probably all trial and error and "yeah that looks like it will work"....
There are no magic turbos mate, just an exchange of things.
Marios
Evolving Member
Joined: Jan 2015
Posts: 218
Likes: 10
From: Dakota Oil Field
If they make one stock frame I think I might be testing this out but with my 2.3 it might spool too quickly and lead to lots of broken drivetrain parts....
Sounds like you’re talking about early aerodynamics for cars! Probably all sciences start with some “trial and error”.
Evolving Member
Joined: Dec 2012
Posts: 153
Likes: 11
From: Mattawan, MI
Compressor wheels don't just magically flow more/less if they have a different turbine attached to them. The difference in power levels are due to other factors, like reduced backpressure/EMAP, decreased work from the turbine, or some other physical factor that increases the efficiency of the engine. If the turbine is too small to produce enough work to generate choke flow from the compressor, that's a mismatch situation and a poor design all together.
Any chance you can include the Blouch 1.0, 2.0, & 3.0xtr stock frame turbos Danny? Thanks for the graph. Links are the only info I can find on the blouch turbo.
1.0 - http://www.streettunedmotorsports.co...10xt_turbo.htm
2.0- http://www.streettunedmotorsports.co...0xtr_turbo.htm
3.0 - http://www.streettunedmotorsports.co...0xtr_turbo.htm
Will
1.0 - http://www.streettunedmotorsports.co...10xt_turbo.htm
2.0- http://www.streettunedmotorsports.co...0xtr_turbo.htm
3.0 - http://www.streettunedmotorsports.co...0xtr_turbo.htm
Will
Last edited by willitas34; Feb 15, 2018 at 06:34 PM.
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