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leadfoot · Posted: Sun Jan 17, 2010 10:21 am Post subject: Common FI specs

http://www.injectorsonline.com/indivprod.php?cid=74&scid=11
Interesting there is a 3/4 length 390cc bosche injector, might be a good fit for the 931 head to allow better access over the fuel rail to the stock throttle location??
Stu.
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Wouldn't the pencil style solve that problem by being able to be inserted further into the injector bung? I'm looking at the pencil style to get the pintle closer to the combustion chamber...
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erstwhile owner of just about every 924 variant ever made

leadfoot · Posted: Sun Jan 17, 2010 12:33 pm Post subject:

IIRC the pencil style allow clearance aroun the injector bung, not sure if it makes a difference with the rail height.
You would need to measure the distance from where the lower o ring butts up against the aluminium in the headto the height of the top o ring.

From what I can find on this link
http://www.bosch.com.au/content/language1/downloads/fuelinjectors.pdf
bosch tech specs there are two sizes of EV6 injectors from oring to oring
48.8mm - standard version
60.3mm - long body

the FG injector i mentioned is part # 0 280 150 363 and considered EV1 style
In this link if you scroll down you can see pics comparing EV1 , EV6 , EV14
From the look there is no discernable difference in height between EV6 /EV14
my guess is tha the long body EV6 is a replacement for older EV1 style injectors. If that's the case then that's around 12mm in height reduction the rail would sit.
http://www.injectordynamics.com/questionsanswered.html
Dan is the part number for the injectors your thinking of on that bosch list??
Stu
_________________
1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

I've been planning to run the Siemens Deka pencil style, as for the longest time, it was the only high impedance injector with enough capacity for what I hope to achieve on the UWB, especially in consideration of E85. I've recently found a couple of additional sources of custom-made flow-matched injectors the have massive capacity in high impedance pencil style injectors.
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erstwhile owner of just about every 924 variant ever made

Arvidw · Posted: Sun Jan 17, 2010 9:07 pm Post subject:

leadfoot · Posted: Sun Jan 17, 2010 9:53 pm Post subject:

how about those 2200cc injectors, then you can get a bumper sticker that says "my other car is a petrol tanker"
Stu
_________________
1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

buldogo2 · Joined: 13 Nov 2009 Posts: 79 Location: Nederland, Tilburg

I sow this discussion and bosch EV12 seems to be a nice injector, so i sketcht it up in sw real fast. can be intresting for you all.

To bad it's still a litle to short

Arvidw · Posted: Mon Jan 18, 2010 2:55 am Post subject:

I think your model is not 100% accurate, compare it with this sliced cilinderhead and you will notice that your injector chanel is longer.(maby a feature of the 931head?) Mine is 22mm's deep at the max and around 13mm min.

(This really is an incredible usefull picture, thanx again endwrench)

The tip of the EV12 injector is aproximately 18mm long and therefore it is not that bad at all

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Porsche 924 2.0 Kompressor 136.1wHp @ 5650rpm / 201.9wNm @ 3900rpm (dyno @ dp-engineering.nl)

buldogo2 · Joined: 13 Nov 2009 Posts: 79 Location: Nederland, Tilburg

Arvidw · Posted: Mon Jan 18, 2010 5:31 am Post subject:

Rocco R16V · Joined: 03 May 2009 Posts: 497 Location: PNW

copied from this tread

924OZY · Posted: Sat Jan 30, 2010 1:02 am Post subject:

Hi, I would'nt get too freaked out about injector impedences,
There are injector driver boxes that allow you to run alternate impetences.
Bosch Indy injectors are available, which would be big enough for anyone, I reckon.

What are you planning on?
An Old formula I learned was 800cc/min per 100kw@ wheels,

Whats everyone elses opinion?

I'll also Put it this way, to back it up, a bosch 044 only flows 3.2, L/min (from memory) and is enough to make over 600hp@ engine in our Touring Cars.

Maths is a good way to make sure you get the right stuff the first time.
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924 N/A snailshell, superpro linkage bushes, 2.5"exhaust

4.0L ef Fairmont, 3000rpm stall, shift-kit, J3 chip, 3" exhaust, self tuned using tunerpro, soon to be boosted,
expecting 350Kw at wheels at 10psi.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Low idle duty cycle becomes an issue (from what I understand) on the high capacity low impedance injectors. I'm no expert, but everything I've read has warned against using the driver boxes to muck with impedances. There are now a whole range of high impedance high capacity injectors, all the way up to 2000cc. I have a source for these, and will be eventually offering flow-matched sets with my EFI kits. If any body needs immediate help, send me PM.
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erstwhile owner of just about every 924 variant ever made

Bognostraclum · Joined: 07 Feb 2010 Posts: 42 Location: Belgium

BUMP

I'm planning to buy Bosch EV14 280 158 038 injectors. Any comments on those?

They are short style injectors, with extended tip and a conical spray pattern of 20°. 237g/min - 347 ccm/min @ 3 bar, but they can handle up to 8 bar to get a bit more flow.

BMW R1150 motorcycles use those i think.

Min · Posted: Fri Aug 12, 2011 11:21 am Post subject:

http://www.bosch-motorsport.de/en-US/literature/en-US/InjectionValveE_DataSheet_enUS_T6748843403.pdf if that's what your referring to, they should work fine.

Min
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Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting.