Legendary. Hope all goes well. Should be a mental quick car when alls done and finished.

Good luck with the mods

 

Very very nice!Only thing id say is to go for a bigger cooler now..SAve your self the hassle of doing it in the future..That'l be a sweet motor..

 

I once ran a 1.8 16v 19 turbo and the ECU upgrades consisted of nothing more than a pressure switched connected to the cold start injector lol! Yours is positively high tech!

 

thanks for the words of encouragement!

@ Twail, yeah I think I'll upgrade to a front mounted cooler, always liked the idea of one peeking out from behind the front bumper with two blue samco elbows on display

QUOTE (Chet T16 @ Oct 22 2008, 12:33 PM) <{POST_SNAPBACK}>I once ran a 1.8 16v 19 turbo and the ECU upgrades consisted of nothing more than a pressure switched connected to the cold start injector lol! Yours is positively high tech!

I know the fellas with precisely built ECUs will laugh at us but back in the day it was an effective crude method to get some forced induction! renault 19 16v's were a nice bus btw.

 

very interesting, will there be another batch of injectors behind the main ones? is the 16v digi or kjet? a very nice and rare setup you got there.

 

This is the early pre-stealth version so there is just a fifth injector at the throttle body on the inlet, i don't know if you can make it out in the photos. It is for a 1.8 Kjet 16v, that TT ECU is just a piggyback unit to control the extra injector! hopefully if i get it set up right I might drive it over to stealth to get it upgraded to the K star unit with the 4 extra VR6 injectors, I asked a few fellas in the UK about this, apparently it's not too expensive. It's only a low boost set up, 9 psi I think.

 

Looks like a nice bit of kit Conor. Who doesent like some Boost??????

You may show me a look at it once it's done.

 

QUOTE (Conor @ Oct 22 2008, 01:15 PM) <{POST_SNAPBACK}>This is the early pre-stealth version so there is just a fifth injector at the throttle body on the inlet, i don't know if you can make it out in the photos. It is for a 1.8 Kjet 16v, that TT ECU is just a piggyback unit to control the extra injector! hopefully if i get it set up right I might drive it over to stealth to get it upgraded to the K star unit with the 4 extra VR6 injectors, I asked a few fellas in the UK about this, apparently it's not too expensive. It's only a low boost set up, 9 psi I think.
very nice conor, an unusual management setup, ill be watching this one

 

QUOTE (Conor @ Oct 22 2008, 01:00 PM) <{POST_SNAPBACK}>I know the fellas with precisely built ECUs will laugh at us but back in the day it was an effective crude method to get some forced induction! renault 19 16v's were a nice bus btw.

I did switch to a remapped ecu and bigger injectors in the end but it worked! My brother had a turbo technics peugeot 205 1.9 years ago. As far as i remember it ran the same sort of setup as yours and it never gave any trouble

 

Nice setup Conor.

 

This is certainly 1 of the few things i haven't seen on here before so i think it'll be an interesting build. It's something different to 20vt left right and centre. Getting a bit overkill now imo. I'll be calling over for a look now when your finished the dinner conor

 

Best of luck Conor, i'll be watching this closely

 

I'm trying to minimise my time dawdling with this project, so I'm making a list of the parts I need in order to complete the project and buying them before I start, mainly stuff like gaskets, 2.5" exhaust system, going to do the gear linkages whilst I'm at it, and change the drive shaft oil seals as they're weeping a bit.
I've begun polishing the inlet manifold, I'll need to buy a polishing kit to get the final mirror finish though. I also have the ECU pretty much figured out, except for two wires, a spade connector and two ring terminal wires..

 

Post up a pic conor of the ecu im sure brian will know what they are.

 

QUOTE (Conor @ Oct 23 2008, 05:51 PM) <{POST_SNAPBACK}>I'm trying to minimise my time dawdling with this project, so I'm making a list of the parts I need in order to complete the project and buying them before I start, mainly stuff like gaskets, 2.5" exhaust system, going to do the gear linkages whilst I'm at it, and change the drive shaft oil seals as they're weeping a bit.
I've begun polishing the inlet manifold, I'll need to buy a polishing kit to get the final mirror finish though. I also have the ECU pretty much figured out, except for two wires, a spade connector and two ring terminal wires..
not certain, but ring terminals should be earths and the single wire taps into the full throttle switch, does this make sense? as far as i know, they fitted their own micro switch to the body, hence the spade?

im designing similar myself, once the wot switch is activated its going to close a relay, (usually ignores water temp signal at wot and goes into cold start mod at wot for more juice) instead of this ill be using relay to activate a circuit containing a potentiometer allowing me to dial in a value(resistance) for enrichment control.

not hogging your build conor but just trying to give you an idea of whats trying to be accomplished, i may also make something to go inline with the fuel pressure contol reg at the side of the fuel dissy.

if it all works ill be putting it on a printed circuit board as the tt units you have are impossible to get, respect to you

mods, delete if ye think i should post this info elsewhere.

 

another thing i ment to say conor is with this setup you cannot have a blow off valve, the air that you will be letting go via the dump valve HAS gone through the metering head therefore the fuel has also been measured and injected, if you do not recirculate this air the engine will run mega rich coming off full throttle to part throttle/idle and will drive funny if your pushing it hard on a twisty road with straights(lots of on off throttle)
You must return unused boosted air into the system, this also has its problems, if its returned into the airbox below the flap you will get a surge in petrol as its going to force the flap up a second time(it already passed it going to the turbo in the first place)

If you introduce the boost return above the flap, say into the big rubber boot on the dissy unit, the boosted air on entry will snap the kjet plate closed of a shot and will stall the engine/starve it of juice

I think the best place to attach the return is as close to the turbo inlet as possible keeping the boost injection as far from the metering flap as possible to avoid interference...
i dunno conor if you have thought about this but i just said i mention it as its a seriously unique setup you got, ill be following it closely, top job

ps, if you want me to pm you my replys to save clogging up your post i will, this build is going to make interesting reading for a long time to come.

 

Feel free to post away Brian, This is helping me figure out the whole system. I have the extra loom labelled fairly well now. Here's an early MS paint sketch i did to help me figure it out:

The injector plug is a no brainer.
The two ring connectors earth on the car body.
I now know that the far black plug goes on the dizzy assembly. The old dizzy plug wires from the main loom are spliced in like this:

Brian you were saying that the black spade connector goes to a full throttle switch? If so then that rules that one out.

In that case all that I'm left with is the vacuum plug. the vacuum box looks like this:

A small vac hose comes out of the top of this box. the hose looks very similar to the type that connects the main vw ecu to the overrun cut-off valve at the airbox, which is why I thought they might be spliced somehow. But shouldn't this vacuum assembly read the boost pressure so the turbo tech ecu knows what the boost pressure is so it can adjust fuelling accordingly?

Lastly, where does this turbo tech ecu get its power supply from?

 

the vac hose goes to the inlet manifold the pistons side of the butterfly

i havent a clue where its gets its live from, outer terminals on the dissy? as youve shown in picture i dont know conor or know what voltage is in these on the kjet setup....as opposed to efi, one is an earth anyway, middle is engine speed pulse...

 

So I tap a hole on the inlet manifold and put that hose to it? fair dues Brian, I was about to splice it to the wastegate actuator line!

 

yea you could do that, ide head straight for the manifold though to get a very exact clean boost reading.

 

So put that boost pipe in at where the manifold meets the engine? Ok nearly have this figured out. More questions:

where is the full throttle switch, what would be the best way to splice that black spade connector onto it?

Also if anyone knows where this little silver baby is to get its power from then let me know, because all the wires coming out of it are too busy doing other shit!

 

QUOTE (Conor @ Oct 23 2008, 09:39 PM) <{POST_SNAPBACK}>So put that boost pipe in at where the manifold meets the engine? Ok nearly have this figured out. More questions:

where is the full throttle switch, what would be the best way to splice that black spade connector onto it?

Also if anyone knows where this little silver baby is to get its power from then let me know, because all the wires coming out of it are too busy doing other shit!
i dunno what throttle body you have but its usually on the bottom, if not you may have to fit one, i cant imagine how the system would know its on wide open throttle without one.
if its the tt body they supplied and it aint got a wot switch, then my guess would be that thats your live feed in and the tt ecu figures out engine load by manifold pressure and dissy pulse/speed, i could be wrong though, it seems too simple and i would think it would need another imput,

''i havent a clue where its gets its live from, outer terminals on the dissy? as youve shown in picture i dont know conor or know what voltage is in these on the kjet setup....as opposed to efi, one is an earth anyway, middle is engine speed pulse... ''<maybe?

Can ya not ring the fcukers

 

So there is a chance that the black wire with the spade on the end may be live feed? Yeah I found a number to call, Turbo technics haven't done a turbo conversion this side of the millenium, but they have forwarded all queries to this company called ALAN JEFFERY ENGINE TUNING, i may give him a call and annoy the heart out of him!

 

QUOTE (Conor @ Oct 23 2008, 09:50 PM) <{POST_SNAPBACK}>So there is a chance that the black wire with the spade on the end may be live feed? Yeah I found a number to call, Turbo technics haven't done a turbo conversion this side of the millenium, but they have forwarded all queries to this company called ALAN JEFFERY ENGINE TUNING, i may give him a call and annoy the heart out of him!
still cant figure out how it senses wide open throttle, maybe it doesent it is a simple unit after all, maybe we're over thinking it.
Dont blow the fcuker up anyway

edit ; if the throttle body they supplied hasent a full throttle switch them ide be sure thats your live, after all it was designed for the early kjet system.

i can also draw you a circuit to use the cold start injector as your boost injector too if you want for an even cleaner look, save you fitting a second one, or was it designed this way to use just the one?

 

unless the vacuum thing goes to the diaphragm pressure switch at the airbox? any way it could tell whether throttle was fully open by readings it got from that?
It is a very crude system maybe we're just years ahead of it! as for blowing it up, fingers crossed!