Technical 1242 8v SPI Preparing Engine For Turboing

[Whiley]

looks good mate almost there, dont think the horman strut brace will fit anymore tho

 

[ycming]

what inlet mani is that ?

Thanks
Ming

 

[arc]

mk1 1242 16v punto 85

 

[SlinkyCinqi]

The 1.1/1.2 8v and 16v coil packs all look the same. I know everybody says use 1.2 16v ones but what is the difference?

http://cgi.ebay.co.uk/FIAT-PUNTO-SE...arts_Vehicles_CarParts_SM&hash=item20ae96a431

Where abouts are you going to add the joiner? to the large pipe off of the thermostat? Dan

Dan

EDIT - Don't suppose you know what weight the flywheel went down to?

Re the coil packs, the coils themselves look the same but its the mounting bracket that differs I believe, would have just got one in a local scrappy but no 16vs in them

Yea joiner going to to the large pipe off the stat

Flywheel was taken down to 5kg, although I know Mark's is 4.7kg

i can't remember what packs on mine, could well be off my old 8v engine. The brava/o ones differ as the coil pack for all 4 cylinders is one unit.

Instead of making a joiner etc, what about just drilling and tapping the stat housing?

Imagine not remembering what's on your own car! Lol on yours its punto sporting coil packs, but as I said above the packs themselves are possibly the same, but the bracket to mount them on the end of the head keeps everything nice and tidy

Looked at tapping the stat housing, but where? If I do in in the hose tang, then the hose won't push on very far, did you manage to find the thread of the sensor in the end?

looks good mate almost there, dont think the horman strut brace will fit anymore tho

Well gutted! Will have to mod it to fit! Lol

what inlet mani is that ?

Thanks
Ming

As arc has said above mk1 punto 85 16v

Now, time for some sleep!

 

[ycming]

mk1 1242 16v punto 85

Are they the same as the mk 1 sporting 16v then (engine and inlet mani) ?

Thanks
ming

 

[arc]

the mk1 1242cc 16v P85 is the sporting, yeah.

Punto Sporting coil packs on mine you say? Ta!

 

[Dan]

Any news

 

[SlinkyCinqi]

Hi again guys,

Been quiet for a while now! Haven't had the money to get the manifold, and don't think I will in the near future so I went a bit Blue Peter on it! Don't laugh! lol

I machined up a flange plate to match the 1368cc Fiat head, then I took a rover K-Series 16v exhaust manifold (as its steel and tubular) cut the flange from it and modified the pipes (using heat and force!) to match the ports on the flange. (Fiat port centres 77mm oblong, Rover port centres 90mm round).

Then I made a gasket from exhaust gasket material to match.

As I said very Blue Peter!

Looks not too bad and at least it should get me mapping and running!

Gonna try a K-Series downpipe on it when I get the chance.

Comments welcomed as always!

Lenny

 

[whitz]

Hi again guys,

Been quiet for a while now! Haven't had the money to get the manifold, and don't think I will in the near future so I went a bit Blue Peter on it! Don't laugh! lol

I machined up a flange plate to match the 1368cc Fiat head, then I took a rover K-Series 16v exhaust manifold (as its steel and tubular) cut the flange from it and modified the pipes (using heat and force!) to match the ports on the flange. (Fiat port centres 77mm oblong, Rover port centres 90mm round).

Then I made a gasket from exhaust gasket material to match.

As I said very Blue Peter!

Looks not too bad and at least it should get me mapping and running!

Gonna try a K-Series downpipe on it when I get the chance.

Comments welcomed as always!

Lenny

very nice, i was going for a 2 inch bore but that's about 3.5inch?

idea stolen

keep up the good work

Ash

 

[Dan]

1st comment = Damn that manifold is looking cool. Fair play.

2nd comment = Damn the sump is low. lol

3rd comment = you need to fit the cinquecento metal water pipe as it will hit the radiator fan.

 

[fingers99]

I can only repeat what Jamie said above, using a de-comp plate is often looked on as a bodge, but its NOT. Its a well known solution to a problem.

It's a bodge. It avoids the other important issue of the ring lands being too small at the expense of poor combustion. You pays yer money..........

Best bet are forged pistons combined with an increase in cylinder head volume -- that way you can have decent ring lands, lighter,tougher pistons and squish. The Mahle pistons were certainly a lot better than the FIAT ones, but nothing like as tough as forged ones.

 

[blu73]

a bodge perhaps but a bloody good one, the old cinq turbo was the most reliable high boost i've ever known, and that was decomp plated with standard pistons in. agree with what you said though

 

[jamie86]

I also like the theory of a Head gasket going before a piston melts..

 

[blu73]

:yeahthat: much much cheaper

 

[fingers99]

I also like the theory of a Head gasket going before a piston melts..

My experience is that the piston melts before the head gasket goes...........

 

[jamie86]

My experience is that the piston melts before the head gasket goes...........

Yeah yours had machined pistons

 

[blu73]

gotta admit I had much more faith in the cinq not to break than the sei, dunno why they have both been pretty good but the cinq just seemed stronger some how

 

[ycming]

don't blame you, sei is for girls

Ming

 

[blu73]

la la la, i'm not listening

 

[SlinkyCinqi]

Hey guys,

Sorry for being quiet again! Car is still in the same state, Megasquirt all installed and exhaust fitted. Have tried starting and had it running but it runs terrible and seems to bog itself down. Rather than lean it out loads and loads and damage something I really need a hand setting up megasquirt to get any further.

Looking to have the project finished for the summer, so if anyone could come and give me a hand setting up my megasquirt I can sort you out somewhere to stay if necessary and the beers are on me!

Thanks in advance guys, and again sorry for the quiet period!

I haven't given up!!

Lenny