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A few questions about a 20g (I've searched!)

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Old 11-28-2004, 02:58 AM
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Default Re:A few questions about a 20g (I've searched!)

Nice.. I need to rebuild my 20g. I love the top end on those turbos.
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Old 11-28-2004, 09:40 AM
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I think that turbo is way to small for a b16.It will make boost instantly and will run out of steam quickly.Yeah its capable of over 400hp but thats on a lower reving engine.Those Mitsu. turbos all come off of vehicles with low redlines wich meens that HP/TQ needs to be made quickly.

Remember guys.Its not about how much PSI a turbo is capable of making.Its how much CFM it can deliver.Yeah it has a bigger compressor wheel,and compressor housing but with a really small turbine housing it will spool up verry,verry fast.

On a b16 I would go with a .60/.63 or a t3/t4.

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Old 11-28-2004, 01:21 PM
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Originally Posted by d16forlife
I think that turbo is way to small for a b16.It will make boost instantly and will run out of steam quickly.Yeah its capable of over 400hp but thats on a lower reving engine.Those Mitsu. turbos all come off of vehicles with low redlines wich meens that HP/TQ needs to be made quickly.

Remember guys.Its not about how much PSI a turbo is capable of making.Its how much CFM it can deliver.Yeah it has a bigger compressor wheel,and compressor housing but with a really small turbine housing it will spool up verry,verry fast.

On a b16 I would go with a .60/.63 or a t3/t4.

I don't think it will spool instantly. Does a b16 put out that much exhaust volume at low rpms? Correct me if I'm wrong, but I would think that a 2L 4g63 would flow better in low rpms when the turbo would be spooling with 400 cc bigger displacement. In response to his first post. He just wants it to feel fast and make full boost by 4800 rpm. Also looking for less than 250 hp. I know that the compressor is plenty for his goals. I think it will be fine.
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Old 11-28-2004, 02:15 PM
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Yea b16's make kind of junky power down low, you have to rev the ---- out of 'em to make any horse. I am not worried about it spooling TOO fast.

Look at the clipping of the snail, though. Look ok?
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Old 11-28-2004, 04:33 PM
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Default Re:A few questions about a 20g (I've searched!)

Originally Posted by 90turbohatch
I don't think it will spool instantly. Does a b16 put out that much exhaust volume at low rpms?
That turbo is roughly the same size as a t25.Bambooseven is the only person I have met(in person) with a D16y8 that is running a t25.Its at full boost at about 2k rpm.Now keep in mind that its on a "D" series 1.6.

Correct me if I'm wrong, but I would think that a 2L 4g63 would flow better in low rpms when the turbo would be spooling with 400 cc bigger displacement.
You are comparing 2 diferent engines that make hp/tq at diferent rpms.All factory turbo engines make there torque verry early and horsepower near redline.That comparisen is irelevent when choosing a turbo for an originally natural aspirated B16.That would be like comparing the VW 1.8t to the Honda 1.8.Yes they are the same displacement but their eficiency is way diferent.

In response to his first post. He just wants it to feel fast and make full boost by 4800 rpm. Also looking for less than 250 hp. I know that the compressor is plenty for his goals. I think it will be fine.
That turbo will work on a B series.And you will make the HP your looking for if tuned right.But my point is that it will spool up fast and die quick.

Good luck

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Old 11-28-2004, 04:54 PM
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There is no way that this snail is like a t25. I used to have a t25 on my boosted accord, and it was much smaller than that. A 16g, I beleive, is bigger than a t25, and the intake housing is even larger.
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Old 11-28-2004, 04:59 PM
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Default Re:A few questions about a 20g (I've searched!)

Originally Posted by Atheist
There is no way that this snail is like a t25. I used to have a t25 on my boosted accord, and it was much smaller than that. A 16g, I beleive, is bigger than a t25, and the intake housing is even larger.
I belive your wrong.
https://www.homemadeturbo.com/tech_p...ech/index.html
And its not the compressor(what you call intake housing) that makes it spool fast its the turbine housing(exhaust side).
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Old 11-28-2004, 05:19 PM
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a 14b is bigger than a t25. a 14b flows 405 cfm, small 16g flows 505 cfm, a big 16g flows 550 cfm, a 20g flows 650 cfm. It is way bigger than a t25. I don't know where you are getting your info.
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Old 11-28-2004, 05:21 PM
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Default Re:A few questions about a 20g (I've searched!)

Originally Posted by ghettoturbo
Originally Posted by d16forlife
Originally Posted by Atheist
There is no way that this snail is like a t25. I used to have a t25 on my boosted accord, and it was much smaller than that. A 16g, I beleive, is bigger than a t25, and the intake housing is even larger.
I belive your wrong.
https://www.homemadeturbo.com/tech_p...ech/index.html
And its not the compressor(what you call intake housing) that makes it spool fast its the turbine housing(exhaust side).
how is he wrong? a 16g is bigger than a dsm t25, even though it is still not a very big turbo imo
I meant he was wrong in the sense that they pretty much use the same exhaust housing.The down pipe is diferent and yes the t25 compressor housing is smaller.

In this psict you can see the diff. between a 20g and a t3 exhaust housing.This has been my point all along.In my undesrstanding of turbos is that the exhaust housing size dictates how fast the turbo will spool.Not the compressor.

Your free to do *** you please but Im just trying to tell you the turbo your choosing is too small.
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