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HomemadeTurbo - DIY Turbo Forum (https://www.homemadeturbo.com/)
-   Forced Induction (https://www.homemadeturbo.com/forced-induction-7/)
-   -   A few questions about a 20g (I've searched!) (https://www.homemadeturbo.com/forced-induction-7/few-questions-about-20g-ive-searched-30622/)

90turbohatch 11-30-2004 12:20 AM
Re:A few questions about a 20g (I've searched!)
 
Originally Posted by 89hondalude
well I am not to sure on hondas cause I am new to them, but I did have a 91 awd talon with a 20g and it didnt spool fast at all on the 2.0L, it did hit full boost by 4900 rpm but thats not fast, as for the t25 being alomst the same size the 20g is almost 2x the size there are several local dsm's here going 11's full weight on them that will never happen with a t25!!! with ur set up I would worry about the 450 cc's again I am new to honda's but at 12psi on my dsm with the 450cc it was very very lean!!!
Thats seems like some good info. I was thinking about the same. I used to be into dsm's before i got my honda's. The 20g he is looking at has a 16g turbine housing though. I don't know the difference between the turbine housings of an original 20g vs. 16g

89hondalude 11-30-2004 12:31 AM
Re:A few questions about a 20g (I've searched!)
 
the 16g housing will make spool a little better but not all that much!

d16forlife 11-30-2004 06:29 PM
Re:A few questions about a 20g (I've searched!)
 
Originally Posted by 90turbohatch
Originally Posted by 89hondalude
well I am not to sure on hondas cause I am new to them, but I did have a 91 awd talon with a 20g and it didnt spool fast at all on the 2.0L, it did hit full boost by 4900 rpm but thats not fast, as for the t25 being alomst the same size the 20g is almost 2x the size there are several local dsm's here going 11's full weight on them that will never happen with a t25!!! with ur set up I would worry about the 450 cc's again I am new to honda's but at 12psi on my dsm with the 450cc it was very very lean!!!
Thats seems like some good info. I was thinking about the same. I used to be into dsm's before i got my honda's. The 20g he is looking at has a 16g turbine housing though. I don't know the difference between the turbine housings of an original 20g vs. 16g
Thats the thing.Its not a true 20g.Its a 16g turbine with a 20g compressor housing.Thats not a 20g.

The 450s are fine on that car.they will be running at about 60% or so,so their will still be room to hit 300hp if he builds the engine.people here have been using those things for a long time with no problems.

Infinite 12-01-2004 10:58 PM
Re:A few questions about a 20g (I've searched!)
 
from what i understand, the greddy 18g is smaller than an actual mitsu 18g. so can i please have the cliff notes of this whole 20g on a b16 thing? as i am thinking of doing the same thing.
i know these turbos support mad power on dsm's, but what would be the max hp attainable? Spool time? (definitve answer or semi-educated guess) will it survive the upper rev range? (again, definitive answer or educated guess)

Thanks.

Infinite 12-02-2004 03:49 PM
Re:A few questions about a 20g (I've searched!)
 
ttt for an answer.

Atheist 12-02-2004 05:00 PM
Re:A few questions about a 20g (I've searched!)
 
I don't know if I am going to be picking up that snail, becuase of all of the chips on the compressor wheel..

theebluecrx 12-02-2004 06:54 PM
Re:A few questions about a 20g (I've searched!)
 
Originally Posted by 89hondalude
well I am not to sure on hondas cause I am new to them, but I did have a 91 awd talon with a 20g and it didnt spool fast at all on the 2.0L, it did hit full boost by 4900 rpm but thats not fast, as for the t25 being alomst the same size the 20g is almost 2x the size there are several local dsm's here going 11's full weight on them that will never happen with a t25!!! with ur set up I would worry about the 450 cc's again I am new to honda's but at 12psi on my dsm with the 450cc it was very very lean!!!

4900 rpm?How much boost were u pushing?Ive seen fellow dsms full boost (25 lbs) by 3k rpm with 20g's.You shouldnt have done a 20g unless you got a good deal or had cams on the car already.


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