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Technical 1242 8v SPI Preparing Engine For Turboing

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Technical 1242 8v SPI Preparing Engine For Turboing

Right, first things first, the turbo i have is a garrett gt15, and i am wondering if I need to cut the manifold at an angle to weld the adaptor plate for the turbo on, or if i can just cut it straight across? How would I go about grinding the flow splitter out from inside the manifold too? (seen this in richcinq's thread). Also, I need to drill the mounting holes on the turbo out (as they are threaded) and flat off the back of the turbo, they are an M8 thread atm, so i guess just drill them out 8.2 ish to give clearnace for the studs?

all replies appreciated!

Lenny
 
Hi All.

I have pm'd the guy with the forged pistons in the classifieds asking what cr they create and the answer I got was that they are not for a turbo engine as they make a 11:1 cr which is obviously way too high for a turbo engine so no good as far as this thread goes. I thought they looked promising for my 1368 16v turbo as the bore is already 72mm but no.

Rich.
 
right-o, stayed after work today and got some bits done, I got the adaptor plate for the turbo made and the manifold cut, I tacked the adaptor plate on to the manifold. I also drilled out the threaded holes in the turbo inlet flange and flatted off the back of the turbo at one of the holes (the worst one on the exhaust side) so the other 2 holes still need flatting off.

When I offered up the manifold to the head the adaptor plate was just fouling on the water pipe coming across from the water pump, but as you can probably see in the pics, there is plenty of room for a bit to come off. I didn't take any pics before i broke the tacks fomr the manifold to the adaptor plate :( will hopefully tack it together again tomorrow after modifying it a little and get some pics then!

So to do tomorrow:-
Flat off other 2 hole backs on the turbo
Cut 10mm off of the adaptor plate and re tack it to the manifold

Lenny (y)

 
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With regards to the metal water pipe tat runs along the front of the engine block, if you follow it to the right hand side of the engine it bends 90degrees towards the rad then again 90degrees towards the ground and one of the water pipes from the four branch connects to it. On VAD cars the section that goes towards the rad was lengthened so that the rubber pipe remains clear of the turbo, as it gets very hot down there and the pipe will perish quickly.

Another thing we did on both mine and Emma's turbo's was the thin pipe that runs from four branch section up to the expansion tank runs very close to turbo if left and will melt, I know when i bought my car it had a brass section put in, but a much better method is to run it straight up and then across the top of engine bay away from turbo.

It probably easier to explain if you look at the car, if you are going to Gaydon I am sure we will have the Cinq there so come grab a hold of us have a look and I'll show you what I mean. Or if you can't make it then we only live in Towcester not that far from you if you want to come over and get a good idea of what's needed to improve on the basic VAD type set-up.

Aaron.
 
Thanks for the help Aaron, :) I might have tome come and see you sometime and get some handy hints on how to improve the setup. Mine already has some copper piping installed due to the 1242 Supersprint 4-2-1 manifold that's on it. Obviously this won't be the same as the piping needed for the turbo setup but ya'know.

It would be handy to find out all of this as I go along, because I can then build the engine/kit to suit :)

many thanks again, will update more tomorrow

Lenny
 
progress report, Got the plate cut down and the other backs of the turbo flatted off. Also ground out the flow splitter from inside the manifold.

The problem I have now is that the raised lip around the wastegate is JUST hitting on the block so the turbo can't sit down properly, and the manifold cannot mate to the head properly. (see pics)

can i grind away the block a little bit? cos i don't wanna f**k with the wastegate housing!

Thanks (y)

Lenny

 
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On the turbo you will need to reposition the waste gate as its in completely the wrong place when they come as standard.

What to do is loosen the 6 or 8 can't remember bolts on the turbo housing and rotate the exhaust side round with wastegate so its sitting in correct position, again its something that's obvious when you look at a car that already has it.

This also rotates the intake pipe round to correct place for the induction to be placed so you can get cold air to it.
 
not sure yet my dude, will decide on that when it comes to it. MF2 is what I have decided so far, but i'm sure i could be convinced otherwise :eek: lol

anyways, progress wise, manifold now done (still only tacked together) just in case lol. But turbo mounting plate/flange is now at an angle so as to move the turbo away from the block (as was on the VA ones) so the next stage is pipework, if anyone would be so kind as to give me a decent detailed pic of what pipes go where from the turbo unit (including oil lines, and intakes, outlets) would be much appreciated :)

many thanks again

Lenny

EDIT: Pics to follow sometime soon (when i take them) lol :eek:
 
ill be selling my Greddy rebic 3 + Simulator but it costs alot more then a mf2 new though so best stick to a mf2 if on budget.

also you interested in buying a ali throttle body top with blac high flow injector? its powder coated black, also got a tricker carb too if interested in any of these bits gimmie a shout and ill let you know a price
 
SlinkyCinqi said:
PM sent to Gazzaman..

So any advice on what to do to the engine next then? HG is already done, Could put a 75 cam in it? and need to clean it up to get it looking better, but thats purely cosmetic. All ideas appreciated!

Thanks again

Lenny
Click to expand...

Def put the 75Cam in works well on a turbo conversion (y)

Depends if you mean tuning wise or just tarting it up...

If it's making it look pretty look at the pictures of the engine bay of a certain Imola turbo for shiny bits or Emma's for just totally mint :worship:
 
yea i mean tuning wise. Should I uprate bearings etc. or would this all be unnecessary?


EDIT - Just been looking around and have seen that to go LB I don't need to fit an intercooler, would it still be worth fitting one anyway? Or would i experience too much lag? Also just going LB do I still need a FCD and new fuel pump etc?


Thanks again

Lenny
 
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SlinkyCinqi said:
yea i mean tuning wise. Should I uprate bearings etc. or would this all be unnecessary?

thanks again

Lenny
Click to expand...


What method are you suing to change the compression ratio?

Personally I wouldn't worry about to much of the internals as they have showed they can hold 120bhp comfortably with the pistons or H/G giving in first...

Could get the head flowed and flywheel lightened though (y)
 
SlinkyCinqi said:
EDIT - Just been looking around and have seen that to go LB I don't need to fit an intercooler, would it still be worth fitting one anyway? Or would i experience too much lag? Also just going LB do I still need a FCD and new fuel pump etc?


Thanks again

Lenny
Click to expand...

would fit an intercooler definately and also an oilcooler...

Not sure for definate if you have the space never fitted mine :eek: but if you get a Punto GT oil and inetercooler the oil bolts to the back of it (chris (blu) may of find out by now)

Yes you will need a FCD and would recommend new pump and regulator also didn't have one on mine but it does no and apparently is much better now (y)
 
jamie86 said:
What method are you suing to change the compression ratio?

Personally I wouldn't worry about to much of the internals as they have showed they can hold 120bhp comfortably with the pistons or H/G giving in first...

Could get the head flowed and flywheel lightened though (y)
Click to expand...

I am going to run it on low boost first off just to see how it goes, rather than dive in and go for high boost. If anyone could let me know what i do/don't need for low boost it would be greatly appreciated!

thanks again

Lenny

Another thing i'm wondering about is do i need to somehow uprate the oil pump? I'm going to take my turbo oil feed off of the oil filter housing, should I use the top or bottom hole? or either?

cheers
 
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SlinkyCinqi said:
I am going to run it on low boost first off just to see how it goes, rather than dive in and go for high boost. If anyone could let me know what i do/don't need for low boost it would be greatly appreciated!

thanks again

Lenny
Click to expand...

Pretty much the usual might of forgotten something but will be on here somewhere...

Intercooler
Oil cooler
Smaller oil filter (clio 16v i used)
FCD
MF2 or something similar
2nd Injector with "hat" to mount it in
3bar Fuel pump
pressure regualtor
lots of hosing eg for boost pipes.. air filter.. oil pipes... f
Fuel lines
Electronic boost controller (if your feeling flush)

Umm sure there is more.. I would say read this thread over a few times loads of quality info (y)
https://www.fiatforum.com/cinquecento-seicento/39455-cinq-sei-turbo-faq.html

Also whilst it's all aprt I would be tempted to do things like clutch if you haven't already
 
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