 FI newer injectors, Boring/drilling runners |
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| CatDaddy60 |
 Dec 13 2015, 03:52 PM
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#1
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Member  Group: Members Posts: 99 Joined: 30-January 13 From: Austin Tx Member No.: 15,451 Region Association: Southwest Region  |
I'm looking for anyone that has drilled or bored the stock injector locations for newer injectors. Any one try it?
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| r_towle |
Dec 13 2015, 04:10 PM
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#2
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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I will start with why?
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| CatDaddy60 |
Dec 13 2015, 04:42 PM
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#3
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Member Group: Members Posts: 99 Joined: 30-January 13 From: Austin Tx Member No.: 15,451 Region Association: Southwest Region |
QUOTE(r_towle @ Dec 13 2015, 02:10 PM)  I will start with why? To update for more readily available and modern injectors for one reason |
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| r_towle |
Dec 13 2015, 05:05 PM
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#4
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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There are a few optional modern injectors that can be used in the stock intakes.
For some reason I recall Ford being one that has been tested here by someone and it worked. You need to look up the flow rate for the ones you have. Match the flow rate, it's different for each version of engine. Rich |
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| r_towle |
Dec 13 2015, 05:13 PM
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#5
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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A few links to loads of info in this thread
http://www.914world.com/bbs2/index.php?sho...ford++injectors |
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| CatDaddy60 |
Dec 13 2015, 07:35 PM
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#6
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Member Group: Members Posts: 99 Joined: 30-January 13 From: Austin Tx Member No.: 15,451 Region Association: Southwest Region |
Thank you for information. I picked up some injectors from a ford contour they are the 14 lb rated for 1.9 to three liter car my intention is to build a injection and ignition system from modern parts that is upgradable as engine modifications are completed. The stock parts are old and not programable
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| Dtjaden |
Dec 13 2015, 09:47 PM
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#7
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Member Group: Members Posts: 232 Joined: 25-May 13 From: Morgan Hill, CA Member No.: 15,915 Region Association: Northern California |
The stock 2.0 914 injectors are rated at 30# at 30 psi (38# at 43 psi which is the usual pressure used for rating injectors). A 14# injector in a four cylinder engine would only be good for about 90 hp.
There are a number of interesting FI related calculators and injector specifications on the Witch Hunter web site: http://www.witchhunter.com/ The only downsides to the stock Bosch injectors are the likelihood that they will need to be rebuilt which Witch Hunter (and others) does for $22 per injector and they are low impedance injectors which many aftermarket ECUs are not happy driving natively. I have used these successfully with a Megasquirt system for the past 1 1/2 years with an engine that produces about 120 hp with plenty of headroom left. |
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| JeffBowlsby |
Dec 13 2015, 10:05 PM
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#8
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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The stock FI system is easy enough to maintain and all parts are available, no need to solve a non-problem.
Here are some substitute injectors: Attached image(s) 
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| Mueller |
Dec 13 2015, 10:57 PM
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#9
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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I'm pretty sure there are plenty of newer injectors that are direct swaps into the stock manifolds. My 1st megasquirt used l-jet hard parts with Ford 19lb injectors.
There are also machined adapters available if running Delphi injectors or the like. |
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| CatDaddy60 |
Dec 14 2015, 07:42 AM
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#10
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Member Group: Members Posts: 99 Joined: 30-January 13 From: Austin Tx Member No.: 15,451 Region Association: Southwest Region |
Thank you again to Mueller, and Dtjaden what components for megasquirt did you use and what sources did you use for the crank trigger wheel? I'm looking for a laundry list of parts. As far as using the stock parts the onnes that I have are well past their prime and having worked with djet on a 72 Volvo its better to change over than just continuing down a limited road
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| toon1 |
Dec 14 2015, 10:20 AM
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#11
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
I used injectors out of a ford prob for my MS system.
I machined a fuel rail and made a bracket that attaches to the web piece in the intake runners to hold the rail. With MS I used HIGH impedance injectors and they are 21#/hr, I'm running 43psi on my fuel system. If you are swapping with the stock system you will need LOW impedence and match the flow rate if the injector to the stock injectors. Bottom line.....it can be done fairly easily |
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