Big Turbo Options for Zetec? GT3071 or larger options
16-12-2009, 12:03 PM
#41
I'm only repeating what they have both told me
These guys do it for a living and spec alot of turbos for tuners as well as running a dyno themselves
http://store.forcedperformance.net/m..._Code=Turbo-FP
Quote:
"The 76mm size HTA wheel has 54.8mm inducer and flows over 57lb/min without dropping efficiency, and works well at pressure ratios as high as 4.5:1 "
These guys do it for a living and spec alot of turbos for tuners as well as running a dyno themselves
http://store.forcedperformance.net/m..._Code=Turbo-FP
Quote:
"The 76mm size HTA wheel has 54.8mm inducer and flows over 57lb/min without dropping efficiency, and works well at pressure ratios as high as 4.5:1 "
16-12-2009, 12:10 PM
#42
Advanced PassionFord User
Thread Starter
Sorry mate was on about the HTA
Found this on evolution.net forum
"Stock Evo9.......... 41 (44?) lb./min.
BBK Lite .............. 47 lb./min.
FP Green (Gen 1)... 47 lb./min.
Tomei ARMS ......... 48 lb./min.
BBK Full................ 51 lb./min.
FP 73HTA Green..... 54 lb./min.
FP HTA 3076......... 57 lb./min plus
FP Red ................ 57 lb./min.
GT35R ................. 65 lb./min.
FP 82HTA Black...... 68 lb./min.
GT37R ................. 75 lb./min."
Found this on evolution.net forum
"Stock Evo9.......... 41 (44?) lb./min.
BBK Lite .............. 47 lb./min.
FP Green (Gen 1)... 47 lb./min.
Tomei ARMS ......... 48 lb./min.
BBK Full................ 51 lb./min.
FP 73HTA Green..... 54 lb./min.
FP HTA 3076......... 57 lb./min plus
FP Red ................ 57 lb./min.
GT35R ................. 65 lb./min.
FP 82HTA Black...... 68 lb./min.
GT37R ................. 75 lb./min."
Last edited by AustenW; 16-12-2009 at 12:11 PM.
16-12-2009, 12:23 PM
#43
Advanced PassionFord User
Thread Starter
Posted by Ross Sport on the lancer register forum:
"Graph showing back to back test: Garrett 3076R V's 30HTA (on 2.3)
Red Line= 30HTA Ross Sport Kit
Blue Line = 3076R Ross Sport Kit
As can be seen the car turbo isnt being stressed at producing over 500bhp @ 1.4 bar
For sure we feel very confident with the reliability of this set up, with most using it being Nurburgring addicts & making regular trips! (Both built and maintained by APT) "
"Graph showing back to back test: Garrett 3076R V's 30HTA (on 2.3)
Red Line= 30HTA Ross Sport Kit
Blue Line = 3076R Ross Sport Kit
As can be seen the car turbo isnt being stressed at producing over 500bhp @ 1.4 bar
For sure we feel very confident with the reliability of this set up, with most using it being Nurburgring addicts & making regular trips! (Both built and maintained by APT) "
Last edited by AustenW; 16-12-2009 at 12:25 PM.
16-12-2009, 10:29 PM
#44
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The HTA definatly has the extra flow, i also assumed you were talking about the off the shelf 3076. There is a hell of a differance with the extra capacity through stroke on the evo's and you'll probably find you'll be needing nigh around 1 bar extra on your application.
16-12-2009, 11:05 PM
#45
I'd be interested in seeing the compressor map to support that claimed airflow, as in my experience, a GT3076 0.82 a/r is all done in at 530bhp at 32-34psi (and the back-pressure is quite high at that point as well, so you wouldn't want to push anymore boost through it if it was being used on track).
I agree with your figures on a YB though, thats what Ive seen people getting and struggling to get much beyond too.
Last edited by Chip; 16-12-2009 at 11:06 PM.
17-12-2009, 02:34 PM
#48
Advanced PassionFord User
Thread Starter
It would appear from the information above that the ST170 head is better than the Evo or YB on the inlet side once ported on standard valves
My head is running larger inlet and exhaust, I had a set custom made by Ferrea at a cost of $50 each a while ago
It would also appear that the ST170 exhaust flow is better than the Cosworth YB but not as good as the EVO from the graphs above
I've seen a few ported EVO heads and thought the ports looked huge as standard nevermind ported
Once their ported they flow loads of air from the graph above on the Exhaust side, no woder they make good HP
Also noticed on the CNC heads site the flow graph for the BMW E30 M3 head, slightly off topic but it doesn't surprise me why people in Europe are getting 1000bhp plus out them, the head flow is HUGE compared to the heads listed above but they were specifically built for racing (250cfm).
On the subject of reducing engine stroke reducing HP
In my opinion if the engine can rev more and consume more air as a result it should make more HP as revs rise unless it has restrictions or other limiting factors, just my 10 pence worth
My head is running larger inlet and exhaust, I had a set custom made by Ferrea at a cost of $50 each a while ago
It would also appear that the ST170 exhaust flow is better than the Cosworth YB but not as good as the EVO from the graphs above
I've seen a few ported EVO heads and thought the ports looked huge as standard nevermind ported
Once their ported they flow loads of air from the graph above on the Exhaust side, no woder they make good HP
Also noticed on the CNC heads site the flow graph for the BMW E30 M3 head, slightly off topic but it doesn't surprise me why people in Europe are getting 1000bhp plus out them, the head flow is HUGE compared to the heads listed above but they were specifically built for racing (250cfm).
On the subject of reducing engine stroke reducing HP
In my opinion if the engine can rev more and consume more air as a result it should make more HP as revs rise unless it has restrictions or other limiting factors, just my 10 pence worth
Last edited by AustenW; 17-12-2009 at 02:43 PM.
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