Author Topic: Mk2 Digi2 9a  (Read 28836 times)

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Offline RevHappy

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Re: Mk2 Digi2 9a
« Reply #20 on: September 14, 2012, 09:41:32 pm »
I bought a cheap one off ebay when i was going to convert mine to efi, it was ok for the price
Awesome cheers mate
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Offline RevHappy

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Re: Mk2 Digi2 9a
« Reply #21 on: September 14, 2012, 10:12:35 pm »
CURRENT: Mk2 Golf - 1.8t, Coil overs, Passat leather, 16x8, Daily Driven

GONE: Mk2 Jetta - Big Bumpers, Big Windows, Lowered, 15X6 Alloys, and MK1 Suzuki Cultus Gti G13b rally cams, bilstein shocks and springs, momo 14X7 alloys

Offline BB

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Re: Mk2 Digi2 9a
« Reply #22 on: September 14, 2012, 10:36:59 pm »
If you don't have the ignition ecu and loom for the 16v 9a dizzy you have an issue.
 The 9a dizzy has possibly only one cut out like the ABF I'm not sure, but even if it has 4 it has no advance weights or vacume.
 That's where a Saab dizzy with vacume and weights and 4 cut outs comes into it.

 Does the digi rail not fit at all? What rail did you use JohnP?

 What oil cooler question?
 

 
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Offline RevHappy

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Re: Mk2 Digi2 9a
« Reply #23 on: September 14, 2012, 10:39:45 pm »
This has been my main spot of reading http://forums.vwvortex.com/showthread.php?1648969-16v-Digfant-II-FAQ

it says in there that a aftermarket rail will be needed

do i need to fit a oil cooler or is it not much of a worry
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Offline 00quattro00

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Re: Mk2 Digi2 9a
« Reply #24 on: September 14, 2012, 11:04:05 pm »
If you don't have the ignition ecu and loom for the 16v 9a dizzy you have an issue.
 The 9a dizzy has possibly only one cut out like the ABF I'm not sure, but even if it has 4 it has no advance weights or vacume.
 That's where a Saab dizzy with vacume and weights and 4 cut outs comes into it.

 Does the digi rail not fit at all? What rail did you use JohnP?

 What oil cooler question?

The 9a dizzy is a 4 window and is locked ie no vacuum or weights, the saab dizzy is no good as it doest have the correct ign advance curve.

Do you have all the bits you need for the 9a? If you dont I have a couple of spare fuel distributors, ecus, injectors and lines
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Offline johnp

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Re: Mk2 Digi2 9a
« Reply #25 on: September 15, 2012, 09:21:35 am »
Wow didnt expect this much response, cheers guys.

To clear confusion my name is Will, Gtimanik is just a username, call me Will if you want

I bought the engine off Deedub(dave) and he has just given me the motor so i had always planned to run it on digi. I would like to run it on digi just to get it going. Nothing is permanent.

 What are peoples experience with the fuel rail? what one do i need?

Do i just run the 9a dizzy?

And the oil cooler question???

You can make your own fuel rail, or buy one off the net from the states. A couple of places do them.
BB can tell you about a Niissan fuel rail you can use.
Yes you use the 9A dizzy, modify your existing DIGI2 loom, you do not need any other loom.
 If I were you I would buy the 16V 2.0l DIGI 2 chip from Nuespeed. Would probably then run fine.

Offline 00quattro00

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Re: Mk2 Digi2 9a
« Reply #26 on: September 15, 2012, 09:24:54 am »
And its a good time for buying atm
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Offline BB

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Re: Mk2 Digi2 9a
« Reply #27 on: September 15, 2012, 09:59:59 am »
Oh yea there was a golf 9a we fixed that had a Nissan sr20 fuel rail.
 And yes If your car is a digi which it is you can just use the 9a dizzy with the ECU you have already.
 What mods do you need to do to the loom tho John?
 And then once you have it going then get the Neuspeed chip or you will be down on power as the 8v digi system really is about efficency and does not really gas it enough.
 
 Its the K-jets that need the saab dizzy, which may not have exactly the right curves but it is for a 2l motor so will run it fine. The car that detonated was being driven extremely hard on a Targa and other things went wrong as well that added to the piston melt down.

 I think the 9a has a oil cooler on the oil filter and should have the hoses all there so just leave it as it is.
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Offline johnp

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Re: Mk2 Digi2 9a
« Reply #28 on: September 15, 2012, 10:43:20 am »
Oh yea there was a golf 9a we fixed that had a Nissan sr20 fuel rail.
 And yes If your car is a digi which it is you can just use the 9a dizzy with the ECU you have already.
 What mods do you need to do to the loom tho John?
 And then once you have it going then get the Neuspeed chip or you will be down on power as the 8v digi system really is about efficency and does not really gas it enough.
 
 Its the K-jets that need the saab dizzy, which may not have exactly the right curves but it is for a 2l motor so will run it fine. The car that detonated was being driven extremely hard on a Targa and other things went wrong as well that added to the piston melt down.

 I think the 9a has a oil cooler on the oil filter and should have the hoses all there so just leave it as it is.

Loom mods are essentially lengthening to get to the various sensors and fuel injectors. Its all very easy once you have a fuel rail.
You will need to change out the injector cups in the inlet manifold as they are not the same. Order new Digifant 2 injectors from the dealer, they a cheap enough, I have never had any success getting the DIGI2 plastic ones out of an 8V manifold.

Offline watercooled

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Re: Mk2 Digi2 9a
« Reply #29 on: September 15, 2012, 01:18:53 pm »
Conversion fuelrails are around stateside ,read a full article on it and they only come alive with the chip,standard Diji 2 has and an ecu with tame ignition setting and fuel mapping and the engine doe's run lean,the chip I'am running was really noticeable in my otherwise stock 89 when I had that.
I know that the conversion I read about produced good power for the owner,PM me and I will try and find the link its really well done.
The chip I'am running came from a guy in the UK ,he can custom map according to mods done as all his work is down using a rolling road.
My chips makes the bottom end smoother from idle up to 3000 and then it really kicks in.
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Offline RevHappy

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Re: Mk2 Digi2 9a
« Reply #30 on: September 15, 2012, 06:43:39 pm »
Conversion fuelrails are around stateside ,read a full article on it and they only come alive with the chip,standard Diji 2 has and an ecu with tame ignition setting and fuel mapping and the engine doe's run lean,the chip I'am running was really noticeable in my otherwise stock 89 when I had that.
I know that the conversion I read about produced good power for the owner,PM me and I will try and find the link its really well done.
The chip I'am running came from a guy in the UK ,he can custom map according to mods done as all his work is down using a rolling road.
My chips makes the bottom end smoother from idle up to 3000 and then it really kicks in.

Sweet cheers mate will probably head down the line of the nuespeed chip

Oh yea there was a golf 9a we fixed that had a Nissan sr20 fuel rail.
 And yes If your car is a digi which it is you can just use the 9a dizzy with the ECU you have already.
 What mods do you need to do to the loom tho John?
 And then once you have it going then get the Neuspeed chip or you will be down on power as the 8v digi system really is about efficency and does not really gas it enough.
 
 Its the K-jets that need the saab dizzy, which may not have exactly the right curves but it is for a 2l motor so will run it fine. The car that detonated was being driven extremely hard on a Targa and other things went wrong as well that added to the piston melt down.

 I think the 9a has a oil cooler on the oil filter and should have the hoses all there so just leave it as it is.

Was it just a standard sr20 de rail or sr20det? know a couple guys around chch that specialise in silvia's and gtir's
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Offline BB

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Re: Mk2 Digi2 9a
« Reply #31 on: September 15, 2012, 08:47:16 pm »
Standard Sr20.

 All this 16v talk got me going so I ripped out my 8v digi motor and sub frame from the mk2 and gona get on with fitting my ABF.
 Will have to pull my dash again but that's so easy on a mk2. Gona fit the mk3 fusebox and front loom complete. But not airbags or ABS.
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Offline watercooled

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Re: Mk2 Digi2 9a
« Reply #32 on: September 15, 2012, 10:00:29 pm »
The reason for chipping is that the flow of the 16v way exceeds any thing you can do to a 8v head period,a good set-up 8v chip will help and you can adjust the stock diji afm to help or go for a 2e afm(worked for me)
Sorry BB but the Saab dizzy won't cut the mustard,as mentioned there are ignition curve problems ,the loom and wiring is up to you and no differant to what i've just done,like anything'' if you have done it its easy ''.
Make a wise decision regarding ce 1 and ce2 loom for your car ,getting a ce1 to work on diji 2 is less work than a loom change,but will make it easier if you don't have much wiring experience.
Basically (sounds easy ;)) presuming your car is k-jet?,if you retain ce1 loom you need to repower the fuel pump,use the warm up regulator feed for that,you need to wire in a basic relay to power your ecu this feeds off the "key on" side of the fuseboard,earth to body,relay feed output 87 to wiring under the scuttle near the heater inlet.
There are issues with other stuff like temp sensor repositioning and extensions to the stock diji ecu loom ,don't be put off,besides there too many digi haters on here :laugh: :laugh: :laugh:
2 X mk3's(2 litre) ,one is auto parts car,
3 X Porsches 85,89 944's ,57 T4 powered speedster project
Another secret Porsche purchase looming ?
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Offline RevHappy

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Re: Mk2 Digi2 9a
« Reply #33 on: September 16, 2012, 12:35:53 am »
Sorry forgot to mention, car is standard 8v digi2 at the moment. 89 mk2. Talked to a mate today and hes going to get hold of a sr20 fuel rail for me. i know i need to extend the injector wires but will be using the 9a dizzy as it says online to use it with the digi2 8v hall sender so will give that a go.
Will start not this week, am coming up to Auckland for 3 days  (Tue,Wed,Thur) so once im back in chch i will start on the Friday night/Saturday.

Out of interest....JohnP are you in Auckland? When im in auck next week could i come have a look at your set up? or does anyone want to come have a beer at a pub and talk some s*** about the conversion, wouldnt mind meeting some of the almighty wise ones of the north.

Cheers
Will
CURRENT: Mk2 Golf - 1.8t, Coil overs, Passat leather, 16x8, Daily Driven

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Offline watercooled

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Re: Mk2 Digi2 9a
« Reply #34 on: September 16, 2012, 08:12:46 am »
Sorry forgot to mention, car is standard 8v digi2 at the moment. 89 mk2. Talked to a mate today and hes going to get hold of a sr20 fuel rail for me. i know i need to extend the injector wires but will be using the 9a dizzy as it says online to use it with the digi2 8v hall sender so will give that a go.
Will start not this week, am coming up to Auckland for 3 days  (Tue,Wed,Thur) so once im back in chch i will start on the Friday night/Saturday.

Out of interest....JohnP are you in Auckland? When im in auck next week could i come have a look at your set up? or does anyone want to come have a beer at a pub and talk some s*** about the conversion, wouldnt mind meeting some of the almighty wise ones of the north.

Cheers
Will



Will thats great,you are a few steps ahead in that case,you will have to extend some wires but it will be 90% plug and play.

Try this for info - google '' vwvortex 16v digifant II faq",great stuff on there,cheers Dean
2 X mk3's(2 litre) ,one is auto parts car,
3 X Porsches 85,89 944's ,57 T4 powered speedster project
Another secret Porsche purchase looming ?
Audi a4 2003 quattro 1.8t avant,S-line 18in wheels lowered for sale soon
89 Corrado 1.8 kr, Stillato RX 17in wheels 205's.

Offline johnp

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Re: Mk2 Digi2 9a
« Reply #35 on: September 16, 2012, 08:55:40 am »
Sorry forgot to mention, car is standard 8v digi2 at the moment. 89 mk2. Talked to a mate today and hes going to get hold of a sr20 fuel rail for me. i know i need to extend the injector wires but will be using the 9a dizzy as it says online to use it with the digi2 8v hall sender so will give that a go.
Will start not this week, am coming up to Auckland for 3 days  (Tue,Wed,Thur) so once im back in chch i will start on the Friday night/Saturday.

Out of interest....JohnP are you in Auckland? When im in auck next week could i come have a look at your set up? or does anyone want to come have a beer at a pub and talk some s*** about the conversion, wouldnt mind meeting some of the almighty wise ones of the north.

Cheers
Will

Yes I am in Auckland. You can give me a call when you are here. P-mail sent with my contact.
You do not need to change the hall sender in the dizzy.
All the hall devices themselves are the same, 8V, 16V.

Offline BB

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Re: Mk2 Digi2 9a
« Reply #36 on: September 16, 2012, 09:47:17 am »
Yes your digi dizzy plug will plug straight into the 9a dizzy and work.
 
 The Saab dizzy is used for k-jet conversions and they work, Andy balls ran his 9a on one as have many others. They come from a similar 2l motor and are fine for most driving.
 Yes it is better to use the 9a ignition ecu and k-jet system but as with Will many only get the motor.

 But it is simple, fit the 9a motor with the 9a dizzy. Fit the SR20 rail and plug all your existing wiring to dizzy and change the plug to suit the new rail.
 The car will now run but be gutless.
 Get a spare Digi ECU (I have one) send it to get a proper 9a conversion chip, plug back in and whammo your fueling and spark will be just right to get the best from the new motor.

 Will your welcome to come visit me and get a spare digi ECU, we will get JohnP over and go down to Joys Cafe for a bite to eat.

 
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Offline RevHappy

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Re: Mk2 Digi2 9a
« Reply #37 on: September 16, 2012, 10:44:02 am »
Yes your digi dizzy plug will plug straight into the 9a dizzy and work.
 
 The Saab dizzy is used for k-jet conversions and they work, Andy balls ran his 9a on one as have many others. They come from a similar 2l motor and are fine for most driving.
 Yes it is better to use the 9a ignition ecu and k-jet system but as with Will many only get the motor.

 But it is simple, fit the 9a motor with the 9a dizzy. Fit the SR20 rail and plug all your existing wiring to dizzy and change the plug to suit the new rail.
 The car will now run but be gutless.
 Get a spare Digi ECU (I have one) send it to get a proper 9a conversion chip, plug back in and whammo your fueling and spark will be just right to get the best from the new motor.

 Will your welcome to come visit me and get a spare digi ECU, we will get JohnP over and go down to Joys Cafe for a bite to eat.

 

S*** mate, cheers. Thats everything i was asking for. As for the spark and fueling tuning. Can this be done by a chip or is it best to send a whole ecu. And is it a job for specialists? ie platinum? or could Volksworld in chch give it a go?
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Offline johnp

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Re: Mk2 Digi2 9a
« Reply #38 on: September 16, 2012, 03:15:19 pm »
S*** mate, cheers. Thats everything i was asking for. As for the spark and fueling tuning. Can this be done by a chip or is it best to send a whole ecu. And is it a job for specialists? ie platinum? or could Volksworld in chch give it a go?

Do what I p-mailed you. It will then cost you FA.

Offline BB

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Re: Mk2 Digi2 9a
« Reply #39 on: September 16, 2012, 08:13:25 pm »
It sounds like there are special 9a chips for the digi2 ECU you will have to shop around and ask and they will cost a bit and need to be put in by somebody who knows what they are doing.

 Or do what JohnP has said.....which is what?
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