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Old 15-05-2009   #1
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what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia version?

as title says really.

i need to know all the differences, as im not up on these engines at all.

keen to learn as im soon going to start a new project using this lump.

Dunc
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Old 17-05-2009   #2
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

no one??

Dunc
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Old 17-05-2009   #3
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

The manuals should reveal all. Take it you mean the 8v Delta Integrale?
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Old 18-05-2009   #4
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

didn't the lancia one have the ballancer shafts? if it the origional croma that was the legendary fiat twin cam.
I think the management was different too with fiat using marelli and Lancia using Bosch could swear to that though
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Old 18-05-2009   #5
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

I don't know much about the 8V engines having never owned one or worked on one.

Though they may have different sumps, Lancia's for the FWD transfer box and gearbox arrangement, I know thats a differance on the 16V Coupe and integrale engine, though on those there are different part numbers on valves the Lancia's being way more expensive, probably due to getting them homologated for WRC, though in road trim not really needed.

All integrale's run Mag/Mer management, as do Ford Cosworths of similar age, only the Escort getting Ford's own ECU. So many parts like map sensors, ECU upgardes etc are transferable between them.

I thought all the Lampredi Twin Cam turbo engines had counter rotating balancer shafts, but maybe the Fiat one as Allenhelen points out do not, this is no issue as some people remove these and blank off the end with specailly made caps as oil passes through there.

you could join and ask on http://forums.delphiforums.com/evoforum/start the knowledge base on there extends to across Europe.
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Old 18-05-2009   #6
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

The engine in the origional Croma was basically the same twin cam 8v as was found in the 131 but turned trough 90 degrees. There were 3 versions the CHT with a carb, the ie (injected) and Turbo ie the engine was fantastic but let down by cr*p electronics the output was nothing special thought I think the the ie was about 120bhp
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Old 18-05-2009   #7
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

cheers for the replys. i was awaiting one from arron, as i knew he was a lancia man also.

the reson i ask. well, i'm fitting the fiat croma turbo lump to a uno, and i know theyre basicly the same lump, i wanted to know what exact differences there were between the actual engines. i.e. are all the internals the same? same turbo? same cams? i know the croma had 150bhp as standard. did the lancia delta version of the lump have the same output?

cheers for you replys so far guys!

Dunc
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Old 18-05-2009   #8
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

I assume your talking about the twin cam units, Lancia's used Magnetti Marelli injection type units not sure about Fiats Croma system. They originally did not have balancer shafts, I believe they were only added for the Integrale.
As far as I can remember pistons cranks are the same but Lancia's used a slightly diff' cam profile and had distributors in varying places(but mainly on the end of the exhaust cam), think mainly due to fwd application as opposed to Fiats mainly being rwd.
One thing for definate is that theese engines suffer badly from oil surge problems so for enthusiastic driving make sure you fit a baffled sump.
The bottom ends are very strong and will cope with 300bhp in standard form, a very good engine very torque and tractable.

Hope this helps Dunc
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Old 18-05-2009   #9
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

I had a Mk 1 Croma Turbo ie for almost 20 years. (sold it last year) If there's anything specific you want to know about the engine, I still have the original Fiat workshop manual for it. In standard form the engine developed 155bhp.

There's an easy modification you can do to the Magneti Marelli Microplex MED 601B ignition ECU to retard the timing 5 to make it run better on unleaded fuel.


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Old 18-05-2009   #10
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

The 2L 8V integrale's made 185bhp and 225lb ft as standard.
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Old 19-05-2009   #11
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

Quote Originally Posted by J333EVO View Post
The 2L 8V integrale's made 185bhp and 225lb ft as standard.
how come the integrales made 30bhp more? more boost? or other internal work? different cams?

cheers for all your replys so far, its really really helping!

Dunc

p.s. sorry for all my questions lol
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Old 19-05-2009   #12
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

Quote Originally Posted by Notorious131 View Post
I assume your talking about the twin cam units, Lancia's used Magnetti Marelli injection type units not sure about Fiats Croma system. They originally did not have balancer shafts, I believe they were only added for the Integrale.
As far as I can remember pistons cranks are the same but Lancia's used a slightly diff' cam profile and had distributors in varying places(but mainly on the end of the exhaust cam), think mainly due to fwd application as opposed to Fiats mainly being rwd.
One thing for definate is that theese engines suffer badly from oil surge problems so for enthusiastic driving make sure you fit a baffled sump.
The bottom ends are very strong and will cope with 300bhp in standard form, a very good engine very torque and tractable.

Hope this helps Dunc
cheers, yeah it is the twin cam 2.0l 8v turbo im on about

Dunc
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Old 19-05-2009   #13
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

Most of the differences seem to be explained in the Guy Croft book Modifying & Tuning Fiat and Lancia Twin-Cam Engines (not read it yet -- I'll get down to it after I've finished with the Senna bio) -- so GC's website/forum might be useful to you.
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Old 19-05-2009   #14
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

Quote Originally Posted by fingers99 View Post
Most of the differences seem to be explained in the Guy Croft book Modifying & Tuning Fiat and Lancia Twin-Cam Engines (not read it yet -- I'll get down to it after I've finished with the Senna bio) -- so GC's website/forum might be useful to you.
ooooo! where can i buy one from??

ery interested!

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Old 19-05-2009   #15
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Re: what are the differences between the 2.0L 8v turbo Fiat Croma lump & Lancia versi

FOOOOOOOOOOOOOOK ME!!!

just seen the prices of these books!!! why the hell are they so much????

anyone fancy scanning one in for me

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