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| Supercharging the cadillac 4.9 with Allante intake and Gen V M90 supercharger (Page 1/32) |
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MaxCubes
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MAR 20, 03:13 AM
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1988 Fiero with 4.9 Cadillac V8 conversion.... going supercharged...
some quick history....
Its an 88 base model fiero.... used to be a 4 cylinder automatic
.... a few years ago I swapped in the Cadillac 4.9 V8... and also swapped over to a 5 speed Isuzu manual transmission.
I used an ECM and wiring harness from a 1991 Camaro Z28 305 Tuned port injection.... This worked quite well despite that some said it wouldn't work on the 4.9
A few months later I found a Cadillac Allante in a junkyard.... and I quickly bought the intake and swapped on my 4.9 and noticed the a pretty good gain in acceleration.
About a year later... I broke the isusu transmission and I replaced it with another newer isuzu from a 1999 cavalier.... This isusu lasted about two years and then it also cracked ....
And so I found a Getrag 282 from a 1993 Beretta 3.1 ..... Got some shift linkage adapters from Rodney Dickman.... and this transmission has lasted up to the present day[This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:17 AM
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 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:26 AM
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A few months ago I was in the local junkyard....
And to my surprise I saw a 2002 grand prix with a supercharger....
I asked them how much they wanted for it and they said 35 dollars..... and so I bought it cause it was so cheap.
I took it home and wondered if I could actually adapt this thing to my 4.9... wondered it it would fit under the hood
I removed the Allante upper intake and started test fitting....
 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:29 AM
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 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:36 AM
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So I made a decision to go for it....
and grinded a notch it the deck lid to clear the supercharger snout
... and grinded on the alternator mount so that the alternator would sit as low as possible......
so that in turn the supercharger would sit as low as possible to clear the hood
 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:39 AM
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I also had to grind on one of the lower ribs on the snout so that the supercharger is almost touching the alternator....
 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:42 AM
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And ....
it actually fit under the hood !
 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:44 AM
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Here is how I will be routing the belt....
 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:47 AM
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Here is a view of my small belt tensioner assembly... I didn't need to do any changes to it for the supercharger...
 [This message has been edited by MaxCubes (edited 03-11-2015).]
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MaxCubes
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MAR 20, 03:52 AM
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 [This message has been edited by MaxCubes (edited 03-13-2015).]
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