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Post by azwood on Apr 26, 2018 14:16:41 GMT -5
There's something really wrong with aus post got everything I need getting sent out and it's taken for ever so frustrating
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Post by azwood on Apr 26, 2018 14:18:51 GMT -5
Do any of the holset guys know what thread the top banjo bolts are for the oil feed
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Post by stoffe64 on Apr 26, 2018 16:25:43 GMT -5
Do any of the holset guys know what thread the top banjo bolts are for the oil feed Yes,my holset hx60 has m16x1,5 metric thread Cheers /stephan
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Post by azwood on Apr 26, 2018 16:36:43 GMT -5
Do any of the holset guys know what thread the top banjo bolts are for the oil feed Yes,my holset hx60 has m16x1,5 metric thread Cheers /stephan Thanks got the size but dident know if it was a metric thread cheers
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Post by azwood on Apr 27, 2018 18:38:36 GMT -5
Got my 500watt motor in the mail same as racket uses thanks for the link.dont see thair been any problems with power it's a great little unit for the price
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Post by azwood on Apr 27, 2018 18:41:24 GMT -5
Oil pump is on its way I'd like to make some sort of riseising rate reg for it thair us a few bigger ones I can try from Paxton and aeromotive
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Post by azwood on Apr 27, 2018 18:43:13 GMT -5
Something like this
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Post by racket on Apr 27, 2018 19:09:13 GMT -5
Yep , they're a good value motor .
Could you explain a bit more about wanting to have a rising rate regulator .
Cheers John
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Post by azwood on Apr 27, 2018 19:15:40 GMT -5
Yep , they're a good value motor . Could you explain a bit more about wanting to have a rising rate regulator . Cheers John If I use a reg on my oil feed I can start the engine at say 30psi pressure and as boost pressure increases so at 40psi boost pressure I will have 70psi of oil. there a 1 to1 ratio pretty much saves me from blowing past the seals on start-up and shut down and it will just keep itself in check
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Post by racket on Apr 27, 2018 19:37:31 GMT -5
Seems fair enough :-)
Just remember though , its another thing that can go wrong .
Generally we don't have many problems with oil leakage as theres pressure both in the comp and turb during running , the piston ring seals are actually air/gas seals , not oil seals.
A decent sized diesel engine will have high oil pressure with minimal gas pressure in the turb stage during a low idle condition, without oil bypassing the seals.
I've found that even after an extended oil pump testing session of a half hour with high oil pressure going to the turb theres very little leakage of oil past the single turb end seal , the twin seals at the comp never have problems.
So think carefully before overcomplicating the lube system , its really not necessary .
Rising rate systems will help extend battery life a bit and probably has a place for that reason if battery life is marginal
Cheers John
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Post by azwood on Apr 27, 2018 19:41:30 GMT -5
Seems fair enough :-) Just remember though , its another thing that can go wrong . Generally we don't have many problems with oil leakage as theres pressure both in the comp and turb during running , the piston ring seals are actually air/gas seals , not oil seals. A decent sized diesel engine will have high oil pressure with minimal gas pressure in the turb stage during a low idle condition, without oil bypassing the seals. I've found that even after an extended oil pump testing session of a half hour with high oil pressure going to the turb theres very little leakage of oil past the single turb end seal , the twin seals at the comp never have problems. So think carefully before overcomplicating the lube system , its really not necessary . Rising rate systems will help extend battery life a bit and probably has a place for that reason if battery life is marginal Cheers John I've never had a reg fail on me there pretty much set and forget but I do what your saying.
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Post by azwood on Apr 27, 2018 21:44:17 GMT -5
Does anybody know what target afr I should aim for untill I get a pyro I just have a inervate lm1 logger
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Post by racket on Apr 27, 2018 22:40:29 GMT -5
Overall ~ 60:1 A/F for "safe" temps , it can go down to ~50:1 when we start running higher temps.
With your potential max airflow of ~1.5 lbs/sec , you'll need ~1.5 lbs/min of fuel , or a bit under 1 ltr/min, this will be with "backpressure " on the engine , either jet nozzle or freepower , for initial spoolups you might only need ~ 0.75 lpm at max rpm
Cheers John
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Post by azwood on Apr 27, 2018 23:50:19 GMT -5
Overall ~ 60:1 A/F for "safe" temps , it can go down to ~50:1 when we start running higher temps. With your potential max airflow of ~1.5 lbs/sec , you'll need ~1.5 lbs/min of fuel , or a bit under 1 ltr/min, this will be with "backpressure " on the engine , either jet nozzle or freepower , for initial spoolups you might only need ~ 0.75 lpm at max rpm Cheers John Wow that's lean don't know if my gauge even reads that I genraly freak out if I hit 20/1 lol
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Post by racket on Apr 28, 2018 1:50:35 GMT -5
LOL...............its ~15:1 in the Primary Zone , but possibly a tad hot for your instrument ;-)
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