Alpine head swap onto c1j engine block

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07-12-2012, 17:50
chipis

Alpine head swap onto c1j engine block

Hello, has anyone done renault 5 alpine 1982 manufactured head swap with crossflow onto c1j engine? what kind of problems i can run into doing this kind of swap? Is it worth doing? :scratch:
07-12-2012, 19:12
James5

Re: Alpine head swap onto c1j engine block

Andrew cooke done some time back and Danny aka dk developments is doing it aswell there is a thread by danny in the project section:agree:

DK's thread

https://www.rtoc.org/boards/showthread.php?t=3088
07-12-2012, 19:20
Penfold aka The Dealer

Re: Alpine head swap onto c1j engine block

Didn't ashy also do it back in the day??
07-12-2012, 19:49
James5

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Penfold aka The Dealer

Didn't ashy also do it back in the day??

Your right he did:agree:
07-12-2012, 20:15
Logg

Re: Alpine head swap onto c1j engine block

There was this French dudes marvellous bit of engeering.

https://www.rtoc.org/boards/showthread.php?t=29329
07-12-2012, 20:15
gtmatt

Re: Alpine head swap onto c1j engine block

Andrew did it with good results ,you have to machine a water pump bracket i did for scoff
07-12-2012, 20:21
Tony Walker

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Logg

There was this French dudes marvellous bit of engeering.

https://www.rtoc.org/boards/showthread.php?t=29329

He makes it look so simple.... whats the answer with the camshaft?
07-12-2012, 20:27
Logg

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Tony Walker

He makes it look so simple.... whats the answer with the camshaft?

I think you use an alpine cam so you can run matching dizzy drive. but if your on coil packs I guess there would be no need unless there's a reason to use the alpine oil pump too. :confused:
07-12-2012, 20:30
Ashy

Re: Alpine head swap onto c1j engine block

alpine cam runs the water pump so it needs one end machining off and a bearing fitting into the other end of the block!
07-12-2012, 20:33
Logg

Re: Alpine head swap onto c1j engine block

That's just speculation.

Wish I knew more about all this as I feel valve size is what holds back the C1J the most after the carb and this would be a great solution.
07-12-2012, 20:34
Tony Walker

Re: Alpine head swap onto c1j engine block

Whys the alpine cam needed? will the pushrods/followers on the gtt cam not line up with the apline rockers? or is the exhaust inlet lobes in a different position?
07-12-2012, 20:34
Ashy

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Logg

That's just speculation.

.

:confused: what is?
07-12-2012, 20:35
Ashy

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Tony Walker

Whys the alpine cam needed? will the pushrods/followers on the gtt cam not line up with the apline rockers? or is the exhaust inlet lobes in a different position?

The position of the cam lobes are totally different.
07-12-2012, 20:36
Logg

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Ashy

:confused: what is?

My little comment before your explanation. :cartman:
07-12-2012, 20:44
Logg

Re: Alpine head swap onto c1j engine block

So Ashy do you need to use a whole Block and head or cant things be built up in a GTT block? How did yours go in it short life?
07-12-2012, 20:47
Ashy

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Logg

So Ashy do you need to use a whole Block and head or cant things be built up in a GTT block? How did yours go in it short life?

I used a gtt block, liners, crank... Gordini cam, pistons & rods, head and rockers etc.

Heres a gtt v's dini cam

https://www.rtoc.org/files/Technical%...s/DCP01739.JPG

Mine went well right up until it set on fire :cry:
07-12-2012, 20:53
Tony Walker

Re: Alpine head swap onto c1j engine block

What did you do with it then?
07-12-2012, 20:58
Ashy

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Tony Walker

What did you do with it then?

In what way mate?

Heres an old vid of it on youtube when I first got it running....

https://www.youtube.com/watch?v=YRkFMlrHkvU
07-12-2012, 21:00
Tony Walker

Re: Alpine head swap onto c1j engine block

i mean the bits after the fire? sell/scrap?
07-12-2012, 21:08
Ashy

Re: Alpine head swap onto c1j engine block

There wasn't much left, still got the cage :agree:

https://www.rtoc.org/files/Technical%...0Pics/side.jpg

Notice the roofs missing, the NOS tank blew it off when it exploded :eek:
07-12-2012, 21:34
Tony Walker

Re: Alpine head swap onto c1j engine block

:( was the engine salvageable? or screwed :( Did you find what the cause of the fire was?
07-12-2012, 21:50
chipis

Re: Alpine head swap onto c1j engine block

as i see there are one major issue with water pump, to relocate it. as well as custom intake and exhaust manifolds. what about the alpine head thicknes, will we get the same compression ratio as with stock c1j engine head?
08-12-2012, 12:55
DaveL485

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Ashy

There wasn't much left, still got the cage :agree:

Notice the roofs missing, the NOS tank blew it off when it exploded :eek:

Christ.... nobody hurt I hope?
08-12-2012, 13:29
Ashy

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by chipis

as i see there are one major issue with water pump, to relocate it. as well as custom intake and exhaust manifolds. what about the alpine head thicknes, will we get the same compression ratio as with stock c1j engine head?

Just use the dini pistons as they Are domed, using GTT pistons would drop the cr.
08-12-2012, 13:30
Ashy

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by DaveL485

Christ.... nobody hurt I hope?

Nah just my pride and wallet :cry:
08-12-2012, 16:29
V Man

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Ashy

There wasn't much left, still got the cage :agree:

https://www.rtoc.org/files/Technical%...0Pics/side.jpg

Notice the roofs missing, the NOS tank blew it off when it exploded :eek:

I can't believe you left the wings.. they could have been reused!
I've still got the block that was in that somewhere...totally barbecued:devil:
08-12-2012, 19:29
Tony Walker

Re: Alpine head swap onto c1j engine block

Strange how the cage kept its shape while the other metal body melted.
Shape such a great project was lost :(
08-12-2012, 19:38
Logg

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Tony Walker

Strange how the cage kept its shape while the other metal body melted.
Shape such a great project was lost :(

I think that just shows how much stronger the cage is than the shell. :crap:
08-12-2012, 21:40
Sparkie

Re: Alpine head swap onto c1j engine block

you'd need to put an oil drain at the back of the rocker cover to allow excess oil to drain away. - the gtt engine tilts back slightly, the gordini lump sits straight.

the c/r of the gordini is about 8.7:1 with the std domed pistons. - as Ashy said, using gtt ones drops the comp ratio considerably.

one thing to remember is you must fit the dizzy drive BEFORE fitting the head - the hole in the head is too small to fit it afterwards.
08-12-2012, 21:43
Sparkie

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Tony Walker

Whys the alpine cam needed? will the pushrods/followers on the gtt cam not line up with the apline rockers? or is the exhaust inlet lobes in a different position?

EI-EI-EI-EI = gordini/turbo2
EI-IE-EI-IE = r5 gt turbo

;)
09-12-2012, 05:12
Logg

Re: Alpine head swap onto c1j engine block

Quote:

Originally Posted by Sparkie

EI-EI-EI-EI = gordini/turbo2
EI-IE-EI-IE = r5 gt turbo

;)

I had to read this twice thought it was an old McDonald joke at first. :ashamed:

Great info lads.
09-12-2012, 11:17
Tony Walker

Re: Alpine head swap onto c1j engine block

Ei Ei O?
29-12-2012, 22:25
DK DEVELOPMENTS

Re: Alpine head swap onto c1j engine block

Expect to spend plenty of money :eek:

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