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Model specific boards => Golf mk1 => Topic started by: chezz on 01 September 2013, 12:26

Title: CIS conversion to EFI
Post by: chezz on 01 September 2013, 12:26
Is this possible on the MK1's? ...If so,how do you convert the injector housing over...I was curious to know if injector inserts, part no. 034 133 555 can be used to solve the problem?
Title: Re: CIS conversion to EFI
Post by: gazareth on 01 September 2013, 16:26
you can buy injector seats to adapt to efi. not sure of part numbers but I think tsr do them. probably other places to.
Title: Re: CIS conversion to EFI
Post by: chezz on 02 September 2013, 21:04
http://www.not2fast.com/VAG/InjectorCup.html
These are what I require...have you guys encountered them on here, Later Golfs Maybe?
Title: Re: CIS conversion to EFI
Post by: chezz on 04 September 2013, 19:17
It's not the availability of these components that I am interested in, it's the suitability for use as an option to the brass CIS insert... So, nobody on here has gone from CIS to EFI with a standalone ECU and installed thes babies?
Title: Re: CIS conversion to EFI
Post by: gazareth on 04 September 2013, 20:20
the black ones in the pic are definitely mk2 gti efi inserts so if you remove your cis inserts and measure them and they are 22mm diameter then the black ones should fit. according to the table pre 84 had 24mm inserts. I take it yours is post 84?
Title: Re: CIS conversion to EFI
Post by: chezz on 04 September 2013, 22:54
I think I need to explain that I am kind of scavenging information from as many VW sources as possible, for my Audi 10v 5 cyl, KV Eaton M45 supercharging project - basically, a 5 cyl version of the early Golf CIS, hence, my presence on here! I need to convert to EFI and I would be gratefull for any assistance from your members, to overcome this small hurdle.
I think the best way forward, will be to compare the thread sizes of the CIS Audi brass inserts and see if the are the same thread pitch as the 22mm black inserts
Cheers!
Title: Re: CIS conversion to EFI
Post by: gazareth on 04 September 2013, 23:18
yeah that's the best way. why not buy one insert just so you can double check. then if its right buy another 4. surely they are not that pricey?
Title: Re: CIS conversion to EFI
Post by: gazareth on 04 September 2013, 23:21
infact I have an efi head at work. if I remember tomorrow I will pull an insert and measure it.
Title: Re: CIS conversion to EFI
Post by: chezz on 05 September 2013, 07:03
Cheers Fella
Title: Re: CIS conversion to EFI
Post by: gazareth on 05 September 2013, 17:58
hey measured an insert today for you. it was 22mm diameter with a thread pitch of 1.5mm. they are the shorter black ones in the pics and the number on it was 037 133 555. hope this clears it up for you man.
Title: Re: CIS conversion to EFI
Post by: chezz on 05 September 2013, 21:04
Cheers Gaz,much appreciated, I need to compare this to the thread pitch of the brass CIS inserts now...anyone got one handy? and then I'll leave you all in peace!
Title: Re: CIS conversion to EFI
Post by: Ben@VWH on 20 September 2013, 10:27
10v cis engines had the 22x1.5 injector seats. so you can screw digifant 8v seats straight in. They're still available from the dealer too! If you did have an odd cylinder head with m24 seats, you can use modified 1.8t injector seats (agu versions are m24 and later versions are m22 iirc) but you won't need to as yours will be m22.
 :smiley:
Title: Re: CIS conversion to EFI
Post by: chezz on 07 October 2013, 18:35
cheers fella's your information and assistance is much appreciated.
Title: Re: CIS conversion to EFI
Post by: raferackstraw on 05 November 2013, 20:18
hi op
i dont want to piss on your parade but surely an m45 is not going to give you any meaningful gains, from some threads i have read on club gti an m45 on a 4cyl vw is not enough to produce any real significant gains.
the recommendations have been to go for an m62 on a vw 1.8 4 cyl, with a 5 pot audi surely you would need at least an m62 to flow enough air to feed a 5 pot?
Title: Re: CIS conversion to EFI
Post by: chezz on 01 February 2014, 19:25
According to Eaton, these are good for vehicles for up to 3.0L    the gearing of the pulleys is crucial when you are setting these up. I am hopefully looking to gain a moderate 7psi....I have room to mount another M45 -  if disaster strikes...
Title: Re: CIS conversion to EFI
Post by: gazareth on 01 February 2014, 20:22
are turbo/superchargers not rated more by the bhp rather than the engine capacity???