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Supercharging #1633403
17/06/2019 07:46
17/06/2019 07:46
Joined: May 2017
Posts: 94
Vinisce
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Dorian Offline OP
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Joined: May 2017
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Greetings, does anyone have any expiriences supercharging NA versions of the coupe? I have 16v one and I plan to refresh it in a month or two,but I am also interested in supercharging for a while since it is almost just a bolt on job.What do I need to do get the engine ready for it? I planned to use a simple mechanical roots type,maybe eaton m45 and didn't plan to run too much boost,maybe around 0.4-0.6bars,just to make the car feel more alive. Would a remap and pistons+fuel injectors from 16vt be enough for it to run reliable?

Re: Supercharging [Re: Dorian] #1633406
17/06/2019 09:17
17/06/2019 09:17
Joined: Feb 2017
Posts: 41
Tasmania
G
Grigio Offline
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Grigio  Offline
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Joined: Feb 2017
Posts: 41
Tasmania
I was going to do this with my 131, a 2l 8V. I've got an M45 from a Mercedes, mounted above the oil filter and below the inlet manifold. I was going to use Croma turbo NOS pistons, H beam rods, a Fiat Tempra inlet manifold with 340cc injectors and a megasquirt ECU. I collected all the bits, fabricated the mounts, built the ECU but never got around to putting it all together.


2000 grigio moon 20VT Plus.
Re: Supercharging [Re: Grigio] #1633413
17/06/2019 12:13
17/06/2019 12:13
Joined: May 2017
Posts: 94
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Dorian Offline OP
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Nice project,hopefully will be alive one day. Do you think stock 2.0 16v internals can handle 0.4-0.6 bars if I lower the CR,to around 9:1 ?

Re: Supercharging [Re: Dorian] #1633443
18/06/2019 16:42
18/06/2019 16:42
Joined: Feb 2008
Posts: 1,716
London
kj16v Offline
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London
Conrods would be fine. Just need to lower the compression ratio and add adequately sized injectors. I would offer to dyno map your ECUs for you, but you're both a long way away from the UK!

Re: Supercharging [Re: kj16v] #1633459
19/06/2019 08:39
19/06/2019 08:39
Joined: May 2017
Posts: 94
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Dorian Offline OP
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Dorian  Offline OP
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I can get my hands on 16vt injectors,do you think putting in a thicker HG and doing head work would be enough to lower the CR?
P.S I plan to run the car on 100 octane fuel+ LPG system installed for daily usage

Last edited by Dorian; 19/06/2019 08:41.
Re: Supercharging [Re: Dorian] #1633467
19/06/2019 13:10
19/06/2019 13:10
Joined: Feb 2008
Posts: 1,716
London
kj16v Offline
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London
Yep all of that would work. Shouldn't think you would have to modify the combustion chamber, just choose an MLS gasket that will lower the CR to 9:1. Also try to fit an intercooler in there somehow. Roots chargers produce quite a lot of heat. Most crucial thing is to have it mapped on the dyno by someone competent.

Re: Supercharging [Re: Dorian] #1633471
19/06/2019 17:31
19/06/2019 17:31
Joined: Mar 2019
Posts: 39
North Macedonia
386ka Online content
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386ka  Online Content
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Joined: Mar 2019
Posts: 39
North Macedonia
While at this - is there any MLS head gasket on the market that would lower the 16v N/A CR to 8:1 or close?

Re: Supercharging [Re: 386ka] #1633474
19/06/2019 21:33
19/06/2019 21:33
Joined: Feb 2008
Posts: 1,716
London
kj16v Offline
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London
Originally Posted by 386ka
While at this - is there any MLS head gasket on the market that would lower the 16v N/A CR to 8:1 or close?


Too thick. Use low comp pistons!

Re: Supercharging [Re: Dorian] #1633478
20/06/2019 08:02
20/06/2019 08:02
Joined: Feb 2017
Posts: 41
Tasmania
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Grigio Offline
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Tasmania
I've got a 2mm thick stainless decompression plate I had made that I'm never going to use.


2000 grigio moon 20VT Plus.
Re: Supercharging [Re: Dorian] #1633479
20/06/2019 08:09
20/06/2019 08:09
Joined: May 2017
Posts: 94
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Dorian Offline OP
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Dorian  Offline OP
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Posts: 94
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I can get my hands on a intercooler too,but will it give any benefits considering I will not run max high boost(0.4-0.6). Btw,this one should do? https://races-shop.com/engine-gaske...oma-20-16v-bore-87mm-thickness-16mm.html

Re: Supercharging [Re: Dorian] #1633491
21/06/2019 05:57
21/06/2019 05:57
Joined: Feb 2006
Posts: 140
Czech republic
Honza Offline
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Honza  Offline
On a journey

Joined: Feb 2006
Posts: 140
Czech republic
I was thinking about this too..(as I love the sound of SC engine in lancia 037 smile )

to place the SC just under the modified intake manifold (kept only part with injectors and custom made plenum) instead of AC compressor..

to lower CR U can use sligtly machined stock pistons (as there is lot of meat to remove.. EG.. 2mm deeper stock bowl would be enough..), or 16VT ones...

only thing I´m affraid of is too restrictive exhaust manifold. which can cause serious problems (as it did on my modified 16V atmo in the past)..rest of exhaust of course free flow 2,5" at least...


16VT turbo injectors and custom mapping and it would be fine.. you should be anywhere above 200bhp based on other mods...

Last edited by Honza; 21/06/2019 05:58.

05 15.84s
06 14,79s
07 14,9s
09 14.4s
11 lot of things to do
.
.
17 back on the road smile and much stronger

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