Supercharged mk1

[Jarred]

Stu, you could use the eng you have now I'm pretty sure. You'd just have to upgrade to a different throttle body (say off a 2.0 EFI] Your 1.8 is already injected.

[abreut]

thats nuts! that what i was saying to dad i could just wire the switch up under the dash so that if there were cops i would just flick it off how long did it take you to do? did you move the alternator under it? i was thinking of doing the opposite...and having the sc under the alternator...so its at least a lilbit hidden...but i think im going to have to get a 2.0lt with a computer because the k-jet gets in the way massively! is there a small intercooler tucked up the front on the right?

I had the alternator undeneath. I can't remeber why I did it that way around, maybe I had troubles fitting the supercharger down lower. If you can make it work down low it would be better because it is a big heavy thing to have up high. I had a small intercooler up in front of the radiator. It was off a tdi range rover of all things. Did the job though.

[thestu]

Stu, you could use the eng you have now I'm pretty sure. You'd just have to upgrade to a different throttle body (say off a 2.0 EFI] Your 1.8 is already injected.

oh yeh i forgot about that are the intake holes the same size as a mk3 motor? the heads must be close if not the same...except for the amount of vavles!

I had the alternator undeneath. I can't remeber why I did it that way around, maybe I had troubles fitting the supercharger down lower. If you can make it work down low it would be better because it is a big heavy thing to have up high. I had a small intercooler up in front of the radiator. It was off a tdi range rover of all things. Did the job though.

yeh i want to have it down low because i'm not really meant to have an sc until im 22 yeh i have a small intercooler here guess that will do the trick

[qsilverza]

cOol I reckon I could do this to my 80cc once I get the fuel line fixed Though Im not sure the auto box would take it lol.

[Peter Jones]

Stu, you could use the eng you have now I'm pretty sure. You'd just have to upgrade to a different throttle body (say off a 2.0 EFI] Your 1.8 is already injected.

K-Jet injectors and electronic injectors are very different things.

MK 3 electronic injectors are in the manifold and protrude into the head through a wierd key hole shaped inlet port.

MK2 K-Jet injectors are in the head itself.

I have heard tell of people using electronic injectors in the K-Jet head but I believe this requires machining of the head itself or custom injector holders.

Pete

[thestu]

K-Jet injectors and electronic injectors are very different things.

MK 3 electronic injectors are in the manifold and protrude into the head through a wierd key hole shaped inlet port.

MK2 K-Jet injectors are in the head itself.

I have heard tell of people using electronic injectors in the K-Jet head but I believe this requires machining of the head itself or custom injector holders.

Pete

oh ok.

so would i be better off sealing up the injector holes i have atm and then machining the head to fit the mk3 manifold? or could i make up a fuel rail with some 330cc injectors and then fit this to either the manifold or drill and tap the existing head...

or just run ITBs...and a custom manifold

[Peter Jones]

You should be aiming to hit the back of the valve with the fuel spray from the injector. Each of the MK2 and MK3 systems are designed to do just that. So the stock injector position for each type of head is the ideal.

You'll still need to put the injectors somewhere with ITBs.

If I were you I'd do a bit more research about the K-Jet fuel enrichment setup used on the turbo Audis via a manifold pressure feedback circuit into the WUR.

Pete

[thestu]

You should be aiming to hit the back of the valve with the fuel spray from the injector. Each of the MK2 and MK3 systems are designed to do just that. So the stock injector position for each type of head is the ideal.

You'll still need to put the injectors somewhere with ITBs.

If I were you I'd do a bit more research about the K-Jet fuel enrichment setup used on the turbo Audis via a manifold pressure feedback circuit into the WUR.

Pete

Ok i sorta understand that ha ha. So your saying just stick with the setup i have and find out what i need 2 do 2 improve or modify what i have?

[ausgolfer]

I have heard of Kjet injector seals modified to fit electronic injectors, it may have been the ports that the plastic injector inserts sit in that were modified to suit plastic inserts for electronic injectors.
That way you retain the factory injection position.

[ausgolfer]

Also I would like to go Kjet turbo on the 16v one day, just to be oldschool.

There are lots of old Kjet turbo cars that you could use parts from. The Ferrari F40 was a Kjet Turbo

Another option would be a blow through carburettor set up (probably mentioned already). The original Lotus Esprit Turbo used twin Dellorto's being blown through.

[gldgti]

Also I would like to go Kjet turbo on the 16v one day, just to be oldschool.

There are lots of old Kjet turbo cars that you could use parts from. The Ferrari F40 was a Kjet Turbo

Another option would be a blow through carburettor set up (probably mentioned already). The original Lotus Esprit Turbo used twin Dellorto's being blown through.

how do you mention my 2 favoritest cars o all time in the same post??

the esprit turbo was brilliant aswell - back in the 70's, 225hp from a 1.9 inline 4, in the perrrrrrfect body. gives me those man feelings... sheesh.

i do agree though, plenty of k-jet forced induction production cars were made, and its a matter of adapting the system to your needs i suppose.

[Jarred]

yeah and finding the parts...

I mean how often do you see a Ferrari F40 at a wreckers?

[Preen59]

yeah and finding the parts...

I mean how often do you see a Ferrari F4 at a wreckers?

Porsche had turbo cars on K jet too dude. And possibly ovlov?

[gldgti]

check this out

a neat video of k-jet in action

http://www.youtube.com/watch?v=WFhJLLCjKdQ

a list of some cars and their injection systems:

http://www.fuelinjector.citymaker.com/PORSCHE_FUEL_INJECTORS.html

looks like some saabs, earlier volvo 240's, lots of dubs, lots of porsche had k-jet.

[Preen59]

Thought the 930 was K jet..

PORSCHE 930 SERIES 6 1979-78 3299CC, with TURBO K-JETRONIC