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931 stock boost levels /safe boost levels on stock internals
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kondzi  



Joined: 02 Jul 2018
Posts: 485
Location: Poland/EU

PostPosted: Fri May 19, 2023 6:54 am    Post subject: Reply with quote

Cedric wrote:
Theres some long tip injectors available, like some ev14 injectors, check those out.


Good hint Cedric. It seems the 0280158123 would fit nice for my application.

The only thing that bothers me is these injectors are for E85 only according to this document?

https://www.bosch-motorsport.com/content/downloads/Raceparts/Resources/pdf/Data%20Sheet_67797771_Injection_Valve_EV_14.pdf
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'89 951 US
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Cedric  



Joined: 27 Aug 2004
Posts: 2617
Location: Sweden

PostPosted: Fri May 19, 2023 5:08 pm    Post subject: Reply with quote

kondzi wrote:
Cedric wrote:
Theres some long tip injectors available, like some ev14 injectors, check those out.


Good hint Cedric. It seems the 0280158123 would fit nice for my application.

The only thing that bothers me is these injectors are for E85 only according to this document?

https://www.bosch-motorsport.com/content/downloads/Raceparts/Resources/pdf/Data%20Sheet_67797771_Injection_Valve_EV_14.pdf


A quick google says its the Porsche turbo/gt2/gt2rs injectors, they work well with petrol aswell. But have stainless parts inside for handling ethanol and methanol.
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924RACR  



Joined: 29 Jul 2001
Posts: 8817
Location: Royal Oak, MI, USA

PostPosted: Fri May 19, 2023 8:51 pm    Post subject: Reply with quote

Yeah, I just used long tip injectors in the stock location with adapters, much easier.

I used the Bosch 0 280 158 123 injector, from the 997 Turbo, it's 627cc.

0 280 155 892 is another smaller option if you prefer, 365cc from the Audi TT - probably a better choice for an NA EFI conversion.

Trimmed down a set of VW 058 133 555 injector inserts, taking the top flange off so they'd fit.

Been running this config for a few years now...
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Mike9311  



Joined: 14 Dec 2004
Posts: 1678
Location: Chicago-ish

PostPosted: Fri May 19, 2023 11:47 pm    Post subject: Reply with quote

Quote:
If I remove the head, then the saga of Mike's journey might be needed to re-read few times again


When I make an extra +2.7HP then you won't have to make the journey

I also suspect that the result of my journey might follow the law of diminishing return. Like a $1500 set of speakers vs $5000-50K

It is likely that Cedric's plan of attack is the best bang for the buck. Just a quick clean up port job (also pointed out by Gegge a long time ago)

The only thing I can see right now that would be the game changer is a proper intake that uses the full flow gain of the head
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kondzi  



Joined: 02 Jul 2018
Posts: 485
Location: Poland/EU

PostPosted: Tue May 30, 2023 3:47 am    Post subject: Reply with quote

Believe it or not I have a serious problem sourcing the VW 058 133 555 inserts.
I mean I found ZERO in Poland, and getting them from other EU sources is around EUR 60-80 :-/

These WERE available in lots of flavours (stainless, bronze, OEM plastic), but no longer exist... Seems parts for VAG are dying much quicker than anyone expected haha.

BTW the EU sources name these part as VW Classic
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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
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924RACR  



Joined: 29 Jul 2001
Posts: 8817
Location: Royal Oak, MI, USA

PostPosted: Tue May 30, 2023 8:39 pm    Post subject: Reply with quote

Damn!!

Maybe these guys will ship to you? This is where I got mine...
https://www.fcpeuro.com/products/vw-injector-insert-genuine-vw-058133555
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kondzi  



Joined: 02 Jul 2018
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Location: Poland/EU

PostPosted: Wed May 31, 2023 12:54 am    Post subject: Reply with quote

I think I need to make use of my lathe...

Paid a visit to a local parts wholesaler and the guy there checked ALL of the available catalogs he has access to - stock is ZERO everywhere. This is awkward honestly, but maybe it's the way how modern motorisation works haha.
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Konrad
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kondzi  



Joined: 02 Jul 2018
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PostPosted: Wed Jun 07, 2023 10:35 pm    Post subject: Reply with quote

An evening in the garage with lathe and here we go...




I'm just curious if the tip of the injector is protruding enough?



Now I need to figure out the fuel rail. I have a billet extrusion that I can use, but still will need to fabricate some mounts that will need to mount to something.



Are there any areas on the head (injector side wall) that can be drilled and tapped safely?
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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)
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924RACR  



Joined: 29 Jul 2001
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Location: Royal Oak, MI, USA

PostPosted: Thu Jun 08, 2023 4:51 am    Post subject: Reply with quote

Dan Beckett's design, which I'm using, just had legs that were captured by two of the intake bolts...
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kondzi  



Joined: 02 Jul 2018
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PostPosted: Thu Jun 08, 2023 7:11 am    Post subject: Reply with quote

Just to reference Ideolas rail:

https://www.924board.org/viewtopic.php?t=29190&postdays=0&postorder=asc&start=0

Honestly I don’t like that type of mount. I’m sure it works fine, but I don’t like it I’ll try to sort out a nicer way to mount the rail.
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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)
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kondzi  



Joined: 02 Jul 2018
Posts: 485
Location: Poland/EU

PostPosted: Thu Jun 08, 2023 7:59 am    Post subject: Reply with quote

I expect it would be safe to drill and tap those 10mm or so for the m6 bolt in the red areas here???



The green areas after tapping and using i.e. helicoil insert might be used as well for a bit of strength of an „A” shaped mount/legs (4 points). Same probably if I would just use two of the rocker cover bolts.

Here’s my rail extrusion:


And here the CPS will be mounted most probably:

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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)
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924RACR  



Joined: 29 Jul 2001
Posts: 8817
Location: Royal Oak, MI, USA

PostPosted: Thu Jun 08, 2023 8:27 pm    Post subject: Reply with quote

Yeah, I shouldn't expect any issues tapping those spots for mounts.

I get your concerns with the Ideola rail mounting - doesn't seem ideal, structurally.

As for rail mounting, definitely give thought to getting the fitting to the end to supply fuel; I found hose routing to be a real pain in the front due to the location of the thermostat elbow... and equally at the back due to the distributor and boost sensing tube for the wastegate.

Currently mine's up front, but I want to try moving it back to the back, see if the clearance is any better there, now that I've ditched the dizzy.
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kondzi  



Joined: 02 Jul 2018
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Location: Poland/EU

PostPosted: Tue Jun 13, 2023 6:06 am    Post subject: Reply with quote

I did some test fit today quickly.



It seems that best it’s with fuel supply at back and pressure regulator at front / side as above.

That way I can fit COP (Denso from Toyota Yaris I think) and I am even thinking about fabricating a small mount for them to attach to fuel rail.

And here’s with the 1.8T intake:



I’m thinking about having a new thread about building that fuel rail / COP setup for 931. Might be easier for smn in the future to find that stuff.
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'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)
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