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  #1  
Old 16-08-2018, 09:55 AM
rmn_eg9 rmn_eg9 is offline
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Default confused with hsf pcb

Hello
I am a little confused with pcb solderind pads to run x1.5 idc or maybe more (engine setup below)

picture taken from this forum but I havethis type of board with no marks like on this one


The second is- I am running 3 (1000cc) jets and user manual suggest to solder 1-2-3 pads to 2-3 is it corect because manual section has doubled chapter #6 but it is pionted on chapter7.
Setup is
nissan rb26 with 3.4 strocker kit
efr9174
2200 bosch injectors
at 1.2 bar I have 525 whp and only 48%idc on pump gas
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  #2  
Old 16-08-2018, 11:57 PM
Richard L Richard L is offline
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Default Re: confused with hsf pcb

I suggest using the x1.5 + the "GAIN" trimmer. Ideally using x2.25 (available on V3.1)
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  #3  
Old 17-08-2018, 04:12 AM
rmn_eg9 rmn_eg9 is offline
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Default Re: confused with hsf pcb

Solved, this board revision has a jumpers set on opposite
did x1.5 and pad 2-3 solder for 3 jets, seems it flows reasonably
but see no power gain((
tested at mustang dyno
started at 1.2 bar with gas afr 11.5 , injecting pure ethanol (96% grade) went to 10.5
pulled -10 to 17% of fuel to match11.5 gas afr and no power gain(((
added 3-4*, got +10 whp an average, added 5* no luck
total timing 18 to 24* with wmi active
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Old 17-08-2018, 06:52 AM
Richard L Richard L is offline
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Default Re: confused with hsf pcb

try adding boost
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Old 17-08-2018, 07:35 AM
rmn_eg9 rmn_eg9 is offline
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Default Re: confused with hsf pcb

Quote:
Originally Posted by Richard L View Post
try adding boost
I did, at 1.4 it made 595 with injection and neraly the same 580 or so on pump gas ron98
I noticed power gain on afr12 ,550@1.2 during pump gas run
Going to test afr 12 with injection but I`ll have to remove 20-22% of fuel and true gas afr make me scare
the jets are 3 x 1mm not 3x1000cc as I posted above
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  #6  
Old 18-08-2018, 06:35 AM
Richard L Richard L is offline
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Default Re: confused with hsf pcb

perhaps the turbo has reached its peak flow?
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Old 18-08-2018, 07:03 AM
Richard L Richard L is offline
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Default Re: confused with hsf pcb

Can you not get methanol?
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  #8  
Old 20-08-2018, 04:32 AM
rmn_eg9 rmn_eg9 is offline
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Default Re: confused with hsf pcb

Quote:
Originally Posted by Richard L View Post
perhaps the turbo has reached its peak flow?
it is efr9174 wit capable flow of 96lb/min i am sure there is enough room for power grow
Quote:
Originally Posted by Richard L View Post
Can you not get methanol?
yes , I ll try to do so.
The next step we will try
- get a race gas ron109 and see the diffrenece playing afr and timing at desired boost 1.4 bar
-replace alcohol we have now (96% ethyl spirit allowed to food industry from "known guy" ) with methanol from in sealed tank from manufacters (its not easy to get because of the regulations and restrictions)
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Old 20-08-2018, 06:38 AM
Richard L Richard L is offline
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Default Re: confused with hsf pcb

I have spotted a soldering error, can you please correct it.

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  #10  
Old 20-08-2018, 06:41 AM
Richard L Richard L is offline
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Default Re: confused with hsf pcb

Also add solder link MPS to the iDC to obtain 70/30 idc/mps flow progression. this will provide some boost/flow compensation on the system.
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