Fuel injector question
#1
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Fuel injector question
Hello!
Has anyone a technical documentation about original fuel injector on a S4 1988?
0280150760 Bosch
Is it high or low impedance?
/Jonas
Has anyone a technical documentation about original fuel injector on a S4 1988?
0280150760 Bosch
Is it high or low impedance?
/Jonas
#2
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Hej Jonas,
I think they are considered to be high impedance.
Each injector should be around 14,4 Ohm and 4 on each side are connected in paralell and connect to the same pin at the EZK.
Cheers/Peter
I think they are considered to be high impedance.
Each injector should be around 14,4 Ohm and 4 on each side are connected in paralell and connect to the same pin at the EZK.
Cheers/Peter
#3
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Thread Starter
Hello Peter!
OK!
Found these at summit:
Brand: Accel
Product Line: Accel Fuel Injectors
Injector Advertised Flow Rate (lbs/hr): 40
Injector Advertised Flow Rate (cc/min): 417
Quantity: Sold as a set of 8.
Injector Impedance: 12.0 ohms
Driver Type: 12V saturated circuit
Overall Height (in): 2.880
Seat to Seat Height (in): 2.270
Manifold O-Ring Outside Diameter (in): 0.573
Fuel Rail O-Ring Outside Diameter (in): 0.574
Outside Diameter (in): 0.943
Injector Plug Style: Bosch/Amp Style
But they have another impedance 12 Ohms, is that ok for my ECU?
Vi ses!
/Jonas
OK!
Found these at summit:
Brand: Accel
Product Line: Accel Fuel Injectors
Injector Advertised Flow Rate (lbs/hr): 40
Injector Advertised Flow Rate (cc/min): 417
Quantity: Sold as a set of 8.
Injector Impedance: 12.0 ohms
Driver Type: 12V saturated circuit
Overall Height (in): 2.880
Seat to Seat Height (in): 2.270
Manifold O-Ring Outside Diameter (in): 0.573
Fuel Rail O-Ring Outside Diameter (in): 0.574
Outside Diameter (in): 0.943
Injector Plug Style: Bosch/Amp Style
But they have another impedance 12 Ohms, is that ok for my ECU?
Vi ses!
/Jonas
#6
Rennlist Member
Jonas,
If you want aftermarket injectors, these Design II Bosch units are a match for the S4 - at a flow of 19#/hr: They have 4 injection orfices with a disc distributor vs a single hole - pintle type. You must have a set of 928 specific manifold O-rings. eg. http://cgi.ebay.com/ebaymotors/ws/eB...954014902&rd=1 . Use the link to search under Bosch or Ford - many to be found at reasonable pricing.
Unless you have done some amazing mods, the Accel units noted @ 40#/hr are far too large : I believe the super charged engines are using 24 - 30#/hr.
If you want aftermarket injectors, these Design II Bosch units are a match for the S4 - at a flow of 19#/hr: They have 4 injection orfices with a disc distributor vs a single hole - pintle type. You must have a set of 928 specific manifold O-rings. eg. http://cgi.ebay.com/ebaymotors/ws/eB...954014902&rd=1 . Use the link to search under Bosch or Ford - many to be found at reasonable pricing.
Unless you have done some amazing mods, the Accel units noted @ 40#/hr are far too large : I believe the super charged engines are using 24 - 30#/hr.
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#10
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The LH will idle even though richly with 36# injectors... As you have a race car... Why don't you just put in a MOTEC or TEC III..? this way you can control everything with one computer...
just my .02
just my .02
#11
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Thread Starter
Motec
Read earlyer threads about motec and it seems to be good and expensive. One guy wrote like this "first they try with laborating on different fuel/boost (or something like that) and the engine broke and then they get motec on next project". Got scared Imed.
I would like one sheet before I buy a motec "This is how you do when to put it in a 928 and so forth"....
Wich model (wich one is the best for turbocharge)?
To by sush a thing for ex on e-bay it would be from a company with garantees.
I will try to get more info about motec but anyone who has info is free to share...
Any other brand wich has been tried out?
/Jonas
I would like one sheet before I buy a motec "This is how you do when to put it in a 928 and so forth"....
Wich model (wich one is the best for turbocharge)?
To by sush a thing for ex on e-bay it would be from a company with garantees.
I will try to get more info about motec but anyone who has info is free to share...
Any other brand wich has been tried out?
/Jonas
#12
"Why don't you just put in a MOTEC or TEC III..? this way you can control everything with one computer..." - 928Blau -
Most have a life other than their Porsche. Do you realize the effort required to convert
to another fuel & ignition system, i.e. forget the installation part which is minor
compared to the dyno time to set the fuel & ignition maps & solve ALL the running
problems?
Most have a life other than their Porsche. Do you realize the effort required to convert
to another fuel & ignition system, i.e. forget the installation part which is minor
compared to the dyno time to set the fuel & ignition maps & solve ALL the running
problems?
Last edited by Lorenfb; 02-19-2005 at 02:45 PM.
#13
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Thread Starter
Dedicated to my cars..... , do ask a college at my work - try the first you meet.
In my garage 2 guys have aem box in their M 3000 gt. Is the difference big in mapping?
/Jonas
In my garage 2 guys have aem box in their M 3000 gt. Is the difference big in mapping?
/Jonas