M28/47 questions
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From: Anaheim California
All the electric injector cars fire all the injectors at once...batch fire The early CIS cars which is Continuous Injection System the injectors spray ALL THE TIME just varing amounts.
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From: Puyallup, WA
JB wrote:
Isn't it twice per revolution to a certain rpm level, then once per with an extended duty cycle?
I seem to recall it being twice per revolution but not sure why I think that ??
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From: Buckeye, AZ
Originally Posted by Jim bailey - 928 International
I seem to recall it being twice per revolution but not sure why I think that ?? I never got too excited about it since it is not going to change.
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From: Not close enough to VIR.
Originally Posted by atb
JB wrote:
Isn't it twice per revolution to a certain rpm level, then once per with an extended duty cycle?
Isn't it twice per revolution to a certain rpm level, then once per with an extended duty cycle?
Isn't it funny that we're all speculating instead of just picking up a WSM or using the Rennlist search function?
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From: Back in Michigan - Full time!
Originally Posted by FlyingDog
Isn't it funny that we're all speculating instead of just picking up a WSM or using the Rennlist search function?
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From: Rep of Texas, N NM, Rockies, SoCal
Originally Posted by Jim bailey - 928 International
The early CIS cars which is Continuous Injection System the injectors spray ALL THE TIME just varing amounts.
The CIS injectors are shut off during intake valve closed time. It is a remarkably efficient mechanical system, all based on pressure from the metering plate to the fuel pressure regulator.
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From: Orange, Cal
I don't follow this, isn't the whole intake at a lower pressure during idle than any other speed?
Or does the fuel pressure track the manifold pressure to compensate?
Sounds kind of touchy.
Or does the fuel pressure track the manifold pressure to compensate?
Sounds kind of touchy.
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From: Buckeye, AZ
Originally Posted by danglerb
I don't follow this, isn't the whole intake at a lower pressure during idle than any other speed?
Or does the fuel pressure track the manifold pressure to compensate?
Sounds kind of touchy.
Or does the fuel pressure track the manifold pressure to compensate?
Sounds kind of touchy.
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From: Las Vegas
Originally Posted by Andrew Olson
I think we're all wainitng for J. Speake to chime in. Lazy bastard!
IRRC its appx 51-5200rpm the switch occurs...not sure..but it does occur.
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From: Buckeye, AZ
Originally Posted by FlyingDog
I think it is once per revolution of the crank or twice per complete combustion cycle. Above a certain point (5300rpm at WOT?) it changes to once per combustion cycle.
Isn't it funny that we're all speculating instead of just picking up a WSM or using the Rennlist search function?
Isn't it funny that we're all speculating instead of just picking up a WSM or using the Rennlist search function?
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Ok.. I've got the picture now. I was also asking about the EGT sensors.. Would they work together with a EGT gauge.
dvaok9, I has a twin turbo converted m28/47 and was rebuilding the engine harnes so i could use it together with my DTA p8pro ECU.
dvaok9, I has a twin turbo converted m28/47 and was rebuilding the engine harnes so i could use it together with my DTA p8pro ECU.