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+--- Thread: Hx40 "Low" and slow boost? (/showthread.php?tid=7752)
Hx40 "Low" and slow boost? - rn180 - 05-23-2017
Hi i just mounted a hx40 14cm2 on my om606 7,5mm dieselmeken pump.
The problem is I feel like the turbo is very slow spooled to be an 14cm2 housing, full boost at 4500-5000rpm. And max boost is 2.1 bar
Is this how the hx40 should perform or is there something wrong?
RE: Hx40 "Low" and slow boost? - Hario' - 05-23-2017
that sounds like a 14 for you. How is smoke?
RE: Hx40 "Low" and slow boost? - barrote - 05-23-2017
Unfortunatly that is the fact...
RE: Hx40 "Low" and slow boost? - rn180 - 05-23-2017
What turbo should i have to have 3 bar boost?
There is alot of smoke when mine hits 2.1 bar
RE: Hx40 "Low" and slow boost? - NW124 - 05-23-2017
We run a larger turbo and had the same AR as you currently have and hit max boost around 3500k. Our max boost was 3.5bar. We dropped the AR to .91 but still twin scroll and the turbo starts lighting up 500 rpm sooner. Is your manifold, exhaust and timing all on point?
RE: Hx40 "Low" and slow boost? - atypicalguy - 05-24-2017
(05-23-2017, 10:48 PM)NW124 We run a larger turbo and had the same AR as you currently have and hit max boost around 3500k. Our max boost was 3.5bar. We dropped the AR to .91 but still twin scroll and the turbo starts lighting up 500 rpm sooner. Is your manifold, exhaust and timing all on point?
How much fuel are these pumps set for?
RE: Hx40 "Low" and slow boost? - rn180 - 05-24-2017
(05-23-2017, 10:48 PM)NW124 We run a larger turbo and had the same AR as you currently have and hit max boost around 3500k. Our max boost was 3.5bar. We dropped the AR to .91 but still twin scroll and the turbo starts lighting up 500 rpm sooner. Is your manifold, exhaust and timing all on point?
What turbo were you using?
RE: Hx40 "Low" and slow boost? - NW124 - 05-25-2017
(05-24-2017, 12:27 AM)atypicalguy(05-23-2017, 10:48 PM)NW124 We run a larger turbo and had the same AR as you currently have and hit max boost around 3500k. Our max boost was 3.5bar. We dropped the AR to .91 but still twin scroll and the turbo starts lighting up 500 rpm sooner. Is your manifold, exhaust and timing all on point?
How much fuel are these pumps set for?
They come set at 140CC of fuel. We've only ran a superstroker pump and not a superpump so I cannot say how they differ in comparing spooling, hp or performance on equivalent fueling levels. The superstroker pump has a more aggressive cam profile and is timed much differently (22 BTDC). Conservatively I would estimate that the pump is currently set to 180-200CC.
RE: Hx40 "Low" and slow boost? - NW124 - 05-25-2017
(05-24-2017, 07:40 PM)rn180(05-23-2017, 10:48 PM)NW124 We run a larger turbo and had the same AR as you currently have and hit max boost around 3500k. Our max boost was 3.5bar. We dropped the AR to .91 but still twin scroll and the turbo starts lighting up 500 rpm sooner. Is your manifold, exhaust and timing all on point?
What turbo were you using?
Borg Warner S364.5 FMW Ceramic Coated .91 Twin Scroll
RE: Hx40 "Low" and slow boost? - hents99 - 05-28-2017
Depends on boost control solenoid valve as well. I never use manual boost controllers. Spoolup is approx 300-500rpm lower with EBC.
Wastegate may leak.
RE: Hx40 "Low" and slow boost? - atypicalguy - 06-02-2017
(05-28-2017, 12:40 AM)hents99 Depends on boost control solenoid valve as well. I never use manual boost controllers. Spoolup is approx 300-500rpm lower with EBC.
Wastegate may leak.
Interesting.
RE: Hx40 "Low" and slow boost? - hents99 - 06-04-2017
(06-02-2017, 06:17 PM)atypicalguy(05-28-2017, 12:40 AM)hents99 Depends on boost control solenoid valve as well. I never use manual boost controllers. Spoolup is approx 300-500rpm lower with EBC.
Wastegate may leak.
Interesting.
Maybe because I haven't got any good MBC.
And EBC is much easier to adjust. Click and works.
RE: Hx40 "Low" and slow boost? - atypicalguy - 06-17-2018
(06-04-2017, 05:45 AM)hents99Which electronic boost controller do you use?(06-02-2017, 06:17 PM)atypicalguy(05-28-2017, 12:40 AM)hents99 Depends on boost control solenoid valve as well. I never use manual boost controllers. Spoolup is approx 300-500rpm lower with EBC.
Wastegate may leak.
Interesting.
Maybe because I haven't got any good MBC.
And EBC is much easier to adjust. Click and works.
RE: Hx40 "Low" and slow boost? - atypicalguy - 06-27-2018
(05-23-2017, 08:11 AM)rn180 Hi i just mounted a hx40 14cm2 on my om606 7,5mm dieselmeken pump.
The problem is I feel like the turbo is very slow spooled to be an 14cm2 housing, full boost at 4500-5000rpm. And max boost is 2.1 bar
Is this how the hx40 should perform or is there something wrong?
Seems like not enough boost. Wastegate must be leaking.