924Board.org

[ThomasJoseph315]

I have this style on my 76 (77 on title). Anyone know if these are the right parts number for this?

http://www.oreillyauto.com/site/c/detail/BOS0/0437502023/02521.oap?year=1977&make=Audi&model=100%2BSeries&vi=1007008&ck=Search_C2368_1007008_-1&pt=C2368&ppt=C0024

I had to look up an Audi 100 series to get this one.

[Rasta Monsta]

Bosch # 047 133 551, Fuel Injector.
_________________
Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[ThomasJoseph315]

[ThomasJoseph315]

Anyone know what CC's of fuel over x time these injectors need to be putting out?

[ThomasJoseph315]

Can someone confirm this,.. I think I have the wrong injectors in my car. I mean I don't know if they make a difference with the a/f trim, but this is what is installed in my car.

These are for a 1977 Volkswagen Scirocco Base L4 - 1.6L 97ci 1588cc type EE - MFI.. I suspect these don't work with a 2.0 engine since there are in a 1.6

Installed currently: 0-437-502-015

http://www.oreillyauto.com/site/c/detail/BOS0/0437502015/02521.oap?year=1977&make=Volkswagen&model=Scirocco&vi=1285512&pt=C2368&ppt=C0024

[John The Californian]

http://garage.ideola.com/prod-TuneUpKits.html
Ideola carries them for a decent price.

[scm924s]

For an early car, with flexible braided fuel lines, the injectors should have a banjo fitting on the injector like these http://www.ebay.co.uk/itm/Early-Porsche-924-new-bosch-fuel-injectors-cis-k-jetronic-race-track-/171061747648?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Car+Make%3APorsche%7CModel%3A924&hash=item27d4131fc0
_________________
1984 n/a Ruby Red Metallic
1988 924S Guards red- sold
1986 924S Guards Red - sold
1984 n/a Black - sold
1980 n/a Le Mans#1 - sold
1980 n/a Le Mans#2- sold
1977 Martini - sold

[ThomasJoseph315]

This isn sorta my engine set up, I do not have the banjo style injectors. Not sure what that 5th injector is, maybe the cold air injector. But look at the lines and see how they go strait on the injectors? I think they did away with this style because of the lines breaking. I am very worried that I will break another fuel line when I replace these. Anyway I can get these loose without risking damage to the lines from the ends breaking off?

[scm924s]

It is possible your FI set up has been replaced with later pipes and injectors (unless the US spec is different from euro versions, which I doubt), shouldn't make any difference to running. The 5 th injector is a cold start assist, fires for a few seconds operated by a thermo time switch on start, worth checking to see if they leak rather than shut off when required. Removal of injector lines should be straightforward without damaging them.

Normally, early cars are not fitted with the solenoid (7) this was fitted to later cars to aid poor hot start issues, and was a retro fit as advised by Porsche to earlier models.
_________________
1984 n/a Ruby Red Metallic
1988 924S Guards red- sold
1986 924S Guards Red - sold
1984 n/a Black - sold
1980 n/a Le Mans#1 - sold
1980 n/a Le Mans#2- sold
1977 Martini - sold

[ideola]

If your injectors look like the ones in the diagram you pasted in, then someone has converted the system over using later model parts. Based on other things we've seen on your car (such as the custom/bastardized placement of the WUR), it seems quite likely that your entire CIS system has been cobbled together using an assortment of parts. This is going to make your job quite difficult in sorting out what you currently have, vs. what you should have in order for the car to run correctly.

There are two styles of injectors used on the normally aspirated cars. The early cars all had the banjo style injectors as indicated above, which is part number 047 133 551. These injectors are ~$60 each.

The later NA cars had the style of injector indicated by the diagram you referenced above. Those injectors are part number 049 133 551, and are ~$86 each.

(Incidentally, it appears I need to update the pricing on my website!).

This little exercise also debunks the commonly held belief that has been postulated on this forum that Porsche part numbers with different first tuplets are intechangeable so long as the last two tuplets are the same. Obviously, this is not the case with this particular part (and others that I have run across).

As for flow rate, there is an acceptable rate of flow, but I don't have that info handy, you will need to verify with your Haynes manual.
_________________
erstwhile owner of just about every 924 variant ever made

[ThomasJoseph315]

Anyone ever find a CIS injector flow rate chart?

What is the difference between 0-437-502-015 and 0-437-502-023?

[ThomasJoseph315]

I think I figured out what may be happening,.. 1980 fuel lines and injectors are installed on my car. Why? I think it's because the 1980 had more horse power,... so I am thinking larger injectors?

[ideola]

[fiat22turbo]

According to this: http://www.connact.com/~kgross/FAQ/944faq02.html

The 1980 924 made 5 more HP than the 77 in the US.

The 76 actually made 125hp, but those are pretty rare.

Unfortunately to get a set of decent of injectors it sounds like you get to collect as many as you can have them flow tested to get 4 that are within a decent percentage of each other (I'd probably put the ones that run slightly richer in the 4 & 3 holes to help cool the warmer end of the motor)

Here's an interesting site about the CIS K-jet injection system, its Volvo centric, but it should provide a good overview of each subsystem: http://www.k-jet.org/

The best thing you can do is buy/build the proper CIS pressure testing tool and ensure your pressures are correct and that all four injectors are flowing within their normal range.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[ThomasJoseph315]

Thanks for the tip on where to put better flowing ones.

Yea, the new name for this car "Frankenstein" I couldn't tell you how many mis-matched parts I have found on this thing.

I ordered some injectors from Germany through the dealer, I waited 10 days to find out there the wrong ones. I called O'reilly's and they had some at their local warehouse I could get at noon today that are the correct ones at almost half the cost.

On a side note, I found an interesting story about doing a V8 swap for like $1,000. Something about an LSt moter? Anyone got any good learning materiel on that?