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Originally posted by sunny_
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Welcome back Sir. You inspire me most of the times.
Just a question related to your first point: What is the equivalence of carb slide in FI systems?
Fuel injection systems are more complex ,.....but both in carb., and injectors basically a moving part is there...in Carb., the slide with throttle needle must go up to allow fuel flow for acceleration ..similarly inside an injector there is slide operated by voltage in the injector coil which moves up to allow the fuel to flow...
More questions:
1. Does riding in low speed at higher gears(in case when engine knocks at low rpms) imply that sparks are occurring after top dead centre?
NO ...If it is after TDC there will be no Knocking..If it happens before TDC only you get knocking
2. Is it more harmful than redlining the engine? (As Aneesh bro or Ashwin bro stated that a car mech told this to his mom) If yes, then how?
Red lining and knocking both are Harmful to engine..no comparison which is better than the other...But knocking can lead to severe strain on the con rod big and small ends as well as crankshaft....redlining will also strain these parts..but proper lube flow can prevent disaster.
3. "Ignition advance map region" Sir please elaborate this point or any link will be helpful.
Every ICE running on Petrol has a spark plug and a control on spark timing..for instance at 1,500 rpm if it takes a piston 1 sec to complete one up and down movement, at 6,000 rpm this will be at 1/4th time or 0.25 sec...so essentially the time for combustion is becoming less with more RPM...so in order to compensate for this the timing happening at say 10 degree BTDC will be advanced to 20 degree BTDC to have early ignition and proper combustion ..this then is the Ignition map advancing..the ignition time with respect to TDC will be varied at various RPM to best suit the engine's efficiency.
Just a question related to your first point: What is the equivalence of carb slide in FI systems?
Fuel injection systems are more complex ,.....but both in carb., and injectors basically a moving part is there...in Carb., the slide with throttle needle must go up to allow fuel flow for acceleration ..similarly inside an injector there is slide operated by voltage in the injector coil which moves up to allow the fuel to flow...
More questions:
1. Does riding in low speed at higher gears(in case when engine knocks at low rpms) imply that sparks are occurring after top dead centre?
NO ...If it is after TDC there will be no Knocking..If it happens before TDC only you get knocking
2. Is it more harmful than redlining the engine? (As Aneesh bro or Ashwin bro stated that a car mech told this to his mom) If yes, then how?
Red lining and knocking both are Harmful to engine..no comparison which is better than the other...But knocking can lead to severe strain on the con rod big and small ends as well as crankshaft....redlining will also strain these parts..but proper lube flow can prevent disaster.
3. "Ignition advance map region" Sir please elaborate this point or any link will be helpful.
Every ICE running on Petrol has a spark plug and a control on spark timing..for instance at 1,500 rpm if it takes a piston 1 sec to complete one up and down movement, at 6,000 rpm this will be at 1/4th time or 0.25 sec...so essentially the time for combustion is becoming less with more RPM...so in order to compensate for this the timing happening at say 10 degree BTDC will be advanced to 20 degree BTDC to have early ignition and proper combustion ..this then is the Ignition map advancing..the ignition time with respect to TDC will be varied at various RPM to best suit the engine's efficiency.
Originally posted by Aneesh@4GHz
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What an excellent discussion going on
,I guess we are having the best discussions in ownership thread.
PSR Sir,You are the real hero.
Also tell me if you need any other DIY,I will try my level best.
,I guess we are having the best discussions in ownership thread.PSR Sir,You are the real hero.
Also tell me if you need any other DIY,I will try my level best.
Originally posted by shhbz
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Originally posted by acs1207
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@psr - sir , now my engine cowl's removed (at least for the present ) and crash guard fitted . Feels even better to ride now that I have Zen mpfi filter . But one new problem has cropped up !
. Earlier the cowl used to bear the water/mud/dung that comes off the front wheel - now it splashes onto my feet ( no dung as yet !!
) . Have you done anything to your ride to counter this problem ? Any suggestions ?
. Earlier the cowl used to bear the water/mud/dung that comes off the front wheel - now it splashes onto my feet ( no dung as yet !! ) . Have you done anything to your ride to counter this problem ? Any suggestions ?
on my car's wiring harness . It's not actually meant for sealing , mostly used to hold wires in place especially in electronics . But then if things were used only for their intended purposes my Zmar ( or anybody's ) would be like any other Zmar !!!
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