Holsethy35 Vrs T3/t04e
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Was seriously looking at getting a diffrent turbo as I thought the holset hy 35 turbo im currently using now was way to big and had to much turbo lag but after talking with some people and doing some research, measuring and comparing flow charts I wanted to show this to everyone else who may be wanting a cheep extremely long lasting and high hp capable turbo.
1st thing is specs i was comparing a t3/t04e stage 3 turbine with a 63ar housing, 57 trim wheel with a .6 ar housing.
Measurements of the turbine wheel are, Inducer 2.564 the exducer is 2.215.
Comperssor wheel, inducer 2.225, exducer 2.952,
Those are some pretty common turbos easily available and well proven.
Now for the holset, with a 9cm turbine housing (I belive but from the math this would put it at .34ar which i know isnt right) I belive it to be around. .63-.74 somone correct me if im wrong.
Turbine wheel inducer, 2.570 hmm seems about the same exducer, 2.275 little bigger there not much,
Compressor wheel inducer, 2.078 exducer is 3.073 little smaller inducer but larger exducer. Also note that the holset compressor wheel has 7 primary and 7 2ndary veins for pushing more air, the t04e only had 6 primary and 6 secondary. This alows the holset turbo to produce in excess of 40psi where the t04 would run out of breath.
Next i compared compressor flow charts Its extremely hard to get ahold of a compressor map for a holset turbo the most you can get is the flow rating at 3.0 bar which is .46kg a sec. Roughly 60lb a min. By some standpoints that good for 600hp Im not sure on that i have deffinitly heard of 500 out of the holset turbo. Its hard to tell exactly what the compressor dose but it is designed to push 18psi daily on a cummins so its not optimized for 3 bar it just dose it efficiently due to compressor wheel and compressor housing design Info at www.holset.com (hx35 has the same compressor)
Now for the t04e it flows about 45lb a min at 2.4 bar and if you go to 3 bar its even less around 40.
Both turbos spool at about the same point from what i have heard around 3700 (20psi) and both start to make boost at around 3200. I have proven this with 3" ic pipes a very larege bar and plate intercooler so lag is exagerated due to this.
Holset turbos last and extremely long time the hx and hy 35's have done 300,000 miles in a desil and still go further. they are built well balanced well and have 360 deg thrust bearing standard.
Even better yet holset turbos come with a 35mm wastegate built in and 18psi wastegate.
garrett on the right holset on left
garret on the right holset on the left.
Shows there isnt much diffrence in the wheels other than the holset has 2 extra fins on the compressor which makes it much more potent.
Just thought i would show this to some people kinda intrested me to stick with my holset turbo i picked up for 150$ a year ago.
1st thing is specs i was comparing a t3/t04e stage 3 turbine with a 63ar housing, 57 trim wheel with a .6 ar housing.
Measurements of the turbine wheel are, Inducer 2.564 the exducer is 2.215.
Comperssor wheel, inducer 2.225, exducer 2.952,
Those are some pretty common turbos easily available and well proven.
Now for the holset, with a 9cm turbine housing (I belive but from the math this would put it at .34ar which i know isnt right) I belive it to be around. .63-.74 somone correct me if im wrong.
Turbine wheel inducer, 2.570 hmm seems about the same exducer, 2.275 little bigger there not much,
Compressor wheel inducer, 2.078 exducer is 3.073 little smaller inducer but larger exducer. Also note that the holset compressor wheel has 7 primary and 7 2ndary veins for pushing more air, the t04e only had 6 primary and 6 secondary. This alows the holset turbo to produce in excess of 40psi where the t04 would run out of breath.
Next i compared compressor flow charts Its extremely hard to get ahold of a compressor map for a holset turbo the most you can get is the flow rating at 3.0 bar which is .46kg a sec. Roughly 60lb a min. By some standpoints that good for 600hp Im not sure on that i have deffinitly heard of 500 out of the holset turbo. Its hard to tell exactly what the compressor dose but it is designed to push 18psi daily on a cummins so its not optimized for 3 bar it just dose it efficiently due to compressor wheel and compressor housing design Info at www.holset.com (hx35 has the same compressor)
Now for the t04e it flows about 45lb a min at 2.4 bar and if you go to 3 bar its even less around 40.
Both turbos spool at about the same point from what i have heard around 3700 (20psi) and both start to make boost at around 3200. I have proven this with 3" ic pipes a very larege bar and plate intercooler so lag is exagerated due to this.
Holset turbos last and extremely long time the hx and hy 35's have done 300,000 miles in a desil and still go further. they are built well balanced well and have 360 deg thrust bearing standard.
Even better yet holset turbos come with a 35mm wastegate built in and 18psi wastegate.
garrett on the right holset on left
garret on the right holset on the left.
Shows there isnt much diffrence in the wheels other than the holset has 2 extra fins on the compressor which makes it much more potent.
Just thought i would show this to some people kinda intrested me to stick with my holset turbo i picked up for 150$ a year ago.
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wow dude, fix those pictures to clickable thumbnails...
no matter what turbo you have you're gonna have lag. But don't think of it as lag. Think of it as those first few minutes your girl plays hard to get just for shits and giggles and you two f*** around but not really. Then WHAM, at 3700rpms you two are goin at...I mean you got full boost.
It always seems the longer she waits the better it is, but a man can only take so much so there must be a compromise (just like any decision when it comes to turbocharging an engine).
My point, stick with the H35
no matter what turbo you have you're gonna have lag. But don't think of it as lag. Think of it as those first few minutes your girl plays hard to get just for shits and giggles and you two f*** around but not really. Then WHAM, at 3700rpms you two are goin at...I mean you got full boost.
It always seems the longer she waits the better it is, but a man can only take so much so there must be a compromise (just like any decision when it comes to turbocharging an engine).
My point, stick with the H35
