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Specializing in the 3g CSM
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PostPosted: Sun Sep 12, 2010 3:18 pm 
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CSM Junkie
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Location: FRANCE
Well, i have already a nice 14B from 89Mirageman ( thanks my friend ) .

My Setup:
4G61T stock motor
4G67 head ( rebuild by local motor shop, valve seat and surfacing ) , light porting and polishing by me.
crower spring and retainer
New ss valves, seals and guide
1G turbo camshaft ( HKS 264/264 coming soon )
560cc Denso ( i have FIC 1250cc ready for E85 )
AFPR
Denso fuel pump 300lph HP
3P down pipe/ 2.5P end, SS
ECMLink V3
SD setup
PWR air to water IC setup with small FMIC for heat exchanger.

For street application ( and hill racing ) with fast spool and great power band (4G61T) Best turbo are :
14B stock
14B with porting
Small 16G
Big 16G
EVO 3 16G

Thanks for good input


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PostPosted: Sun Sep 12, 2010 4:28 pm 
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2nd Banana
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Quote:
For street application ( and hill racing ) with fast spool and great power band (4G61T) Best turbo are :
14B stock
14B with porting
Small 16G
Big 16G
EVO 3 16G

Thanks for good input
These really are the best options for a 1.6L. EVO 3 16g has the most potential while still having pretty good spool. That's what I would go with.

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PostPosted: Sun Sep 12, 2010 4:53 pm 
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CSM Junkie

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Location: Cleveland
16g.


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PostPosted: Sun Sep 12, 2010 5:53 pm 
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Now Drives a hybrid :(
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Evo3 big 16g, the "g" series turbos have 2 times the compressor fins making it a more efficient design. I have one and I love it, I can barely tell the difference in spool time from the 11b.

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PostPosted: Sun Sep 12, 2010 7:11 pm 
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Spends Too Much Time Under The Hood
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Evo3 big 16g, the "g" series turbos have 2 times the compressor fins making it a more efficient design. I have one and I love it, I can barely tell the difference in spool time from the 11b.

My evo 3 16g only has 6 fins on the compressor side?

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|e85|HKS 272's|BC Springs|Evo 3 16g|V3 w/SD|TiAL MVS 38mm on stock 2g mani|3" o2 Eliminator|Jay Racing Alt. Relocation Kit|FIC 2150cc's|255hp|


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PostPosted: Sun Sep 12, 2010 8:20 pm 
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Evo3 should be twin scroll, yes? 12 blades in that case?

14b on my 4g61t was great, did ride in an Evo3 4g61t setup and it came on hard and fast once spooled, but it depends upon you driving style and transmission to where you have gearing for all this. The KM210 is good at keeping the RPM's quite high and this can help in the city, and with AutoCross events.


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PostPosted: Sun Sep 12, 2010 8:24 pm 
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2nd Banana
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Evo3 should be twin scroll, yes? 12 blades in that case?
I've always thought that twin scroll meant the exhaust housing was divided. I didn't think it had anything to do with the wheels themselves.

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91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

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PostPosted: Sun Sep 12, 2010 8:49 pm 
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The Silent Administrator
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Not sure, in this case I always picture a set of double blades where there was once one blade per section, when going to an EVO 3 turbo. Could be 100% wrong though. Hmmmm ...


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PostPosted: Sun Sep 12, 2010 9:09 pm 
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Twin scroll has a divided exhaust inlet, the manifold then must be divided then too to make use of it properly, but would still work with a normal manifold.

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- From here:
http://www.modified.com/tech/modp-0906- ... index.html

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PostPosted: Sun Sep 12, 2010 11:28 pm 
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Spends Too Much Time Under The Hood
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^ Yes a twin scroll turbo would work with an open manifold of the same flange, but it would work very poorly. the exhaust is supposed to be smoothly pulsated into the turbine housing, avoiding turbulence at all cost. Imagine what that divider would do to a nice smooth exhaust flow before entering the turbine housing?


My authentic evo 3 has 6 blades, other versions and 14b's, ect, ect have 12 blades. That doesn't decipher twin scroll/non-twin scroll. It's just how they were made.

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|e85|HKS 272's|BC Springs|Evo 3 16g|V3 w/SD|TiAL MVS 38mm on stock 2g mani|3" o2 Eliminator|Jay Racing Alt. Relocation Kit|FIC 2150cc's|255hp|


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PostPosted: Mon Sep 13, 2010 12:55 am 
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CSM Junkie

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Location: Cleveland
evo 3 has 12 blades. 6 small and 6 large.


this is ALL beside the point. if you can swing the 5-600 bucks the evo3 is a solid choice. the b series has nearly identical spool time but nowhere near the flow potential of the g's.


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PostPosted: Mon Sep 13, 2010 1:34 am 
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16g turbo...
Image

and another...
Image

and one last time...
Image

Here's a 14b with 12 fins.

Image

Here's the wheels side by side with some others...
Image

Oh, here's left to right, 20g, 16g, 14b
Image

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|e85|HKS 272's|BC Springs|Evo 3 16g|V3 w/SD|TiAL MVS 38mm on stock 2g mani|3" o2 Eliminator|Jay Racing Alt. Relocation Kit|FIC 2150cc's|255hp|


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PostPosted: Mon Sep 13, 2010 6:12 am 
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CSM Junkie
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Location: FRANCE
Thanks for your help :wink:

14B = 30lb/min
16g = 34lb/min
Big 16g = 36lb/min
EVO III Big 16g = 36-40lb/min (DSMLink has logged several 40+)


14B = 405 CFM at 21psi
16G = 505 CFM at 22psi

Well, my small PWR barel are rated for 450 CFM ( small engine bay ) ...

Best idea:
14B ported or EVO III Big 16G at 15/17 psi .
For fast spool up an great power band ???

KM210 tranny of course

Thanks


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PostPosted: Mon Sep 13, 2010 9:37 am 
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Now Drives a hybrid :(
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I guess I was wrong about the double fins, but the fins still look way more efficient on the 16g. Still EVO316g FTW!

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PostPosted: Mon Sep 13, 2010 1:31 pm 
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I'm saying E316G because I've had many different turbos and the G family of turbos are very efficient as well as reliable. The spoolup times between the two are barely noticeable.

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