Our LS4/4T65E Fiero conversion
02-26-2007, 09:05 AM
#1
Our LS4/4T65E Fiero conversion Not really a Fiero any more, but a stretched Fiero kit car (Lambo Diablo). Guess the little V-6 was not getting it done, so we are installing the new setup wtih heads and cam, Shrifter, and Momo wheel. Not sure about the PCM just yet. Will probably end up using a BS3, but not 100% sure yet. Only have a few shots so far. We made a brace to suspend the combo, and have removed some of the cradle and the cross-piece installed when the car was stretched. These will be replaced with similar structure that works better with the LS4 mounts. We will also be eliminating the displacement on demand stuff.
02-26-2007, 08:14 PM
#2
That should be a screamer! The LS4 is the ideal way to go on any transverse mounted swap.
I would think the stock computer would be the best way to control the whole assembly, but I know you guys are big fans of BS3.
Keep us updated.
I would think the stock computer would be the best way to control the whole assembly, but I know you guys are big fans of BS3.
Keep us updated.
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
02-27-2007, 05:31 PM
#4
Like I mentioned, I have the factory service manuals but nothing in electronic format. Let me know if that's of any help.
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
02-27-2007, 06:06 PM
#5
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Some of these links might help.
http://home.att.net/~subzero350/index.htm
http://dtcc.cz28.com/
http://spad.sytes.net/fiero/manuals/
You can also find a lot of information on Pennocks Fiero Forum
http://www.fiero.nl/cgi-bin/fiero/Ul...i?action=intro
http://home.att.net/~subzero350/index.htm
http://dtcc.cz28.com/
http://spad.sytes.net/fiero/manuals/
You can also find a lot of information on Pennocks Fiero Forum
http://www.fiero.nl/cgi-bin/fiero/Ul...i?action=intro
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03-02-2007, 07:47 AM
#8
It appears we have finished what we need to do with the cradle. Since our engine came with all the rubber mounts still bolted to the engine, we figured out how to employ them. We have also torn down the engine for the heads and cam. Since this car will not use power steering, we will just gut the pump and use it as a pulley to maintain factory belt routing and length. The resevoir is eliminated.
03-02-2007, 08:54 AM
#10
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Originally Posted by Reckless
We have also torn down the engine for the heads and cam.
Originally Posted by carado1984
is it going to be a stock ls4?
03-02-2007, 11:14 AM
#11
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I just started looking into this motor/trans for my next swap into one of my Fieros. I just really started reading about what it takes to get rid of the DOD and what can be used to take its place. Will be watching this Thead for information on the install.
03-02-2007, 11:24 AM
#12
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question is that a 60 degree bell housing on the ls4 block? dose it come in a manual transmission that you can run the linkage up to the front instead of out the back?
I want to put one or a Northstar in a Lotus Exige.
R^3
I want to put one or a Northstar in a Lotus Exige.
R^3
03-02-2007, 12:01 PM
#13
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Originally Posted by MstangsBware
I just started looking into this motor/trans for my next swap into one of my Fieros. I just really started reading about what it takes to get rid of the DOD and what can be used to take its place. Will be watching this Thead for information on the install.
take good notes... i'm wanting to do this too but i first have to find a 'GT. guess i need to get rid of my t-top or 3.4DOHC car first.
03-02-2007, 02:34 PM
#14
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Originally Posted by 6camaro9
Stephen,
take good notes... i'm wanting to do this too but i first have to find a 'GT. guess i need to get rid of my t-top or 3.4DOHC car first.
take good notes... i'm wanting to do this too but i first have to find a 'GT. guess i need to get rid of my t-top or 3.4DOHC car first.
Yeah for me to start looking into this swap and even thinking about buying anything for it, I am going to get rid of my 5 speed 3800SC swap thats in my 88 GT. I have lost interest in it since I have the auto car and I know the 5 speed car will never compare. Reading all I can now about the swap and what it is all going to take, looks like its not going to be easy.
03-02-2007, 10:48 PM
#15
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WOOO HOO another fiero ! Please keep us posted on your progress ! I'm currently working on dropping an LS4 into my 85 GT. I'm tearing the motor down now to have it bored up to 5.7 specs and getting it ready for a cam/lifter/valve/spring swap. Here is a link to my teardown/build over at pennocks fiero forum. Oh and mustangsbeware you have a pm on pff.
http://www.fiero.nl/forum/Forum1/HTML/062546.html
These cars should scoot pretty good with this setup
http://www.fiero.nl/forum/Forum1/HTML/062546.html
These cars should scoot pretty good with this setup
05-04-2007, 12:36 AM
#17
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oh you *** lol , im picking up 3 feiro's here pretty soon, one to drop an ls1 in and fix up, one to build up into a kit car and the other just to take parts from....nice write up keep the pics commin!
05-04-2007, 07:25 PM
#18
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do you have any measurements on the mounting points? also, stupid question but is the trans behind the motor when mounted in the car or in front. what side are the pulleys on?
bill
bill
05-07-2007, 05:00 AM
#19
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I havent seen any updates on this build in a while, is it still happening? I am working on mounting my setup to a cradle now but will be using an 88 cradle. Will be using the same method as above for the engine side but going with a differant setup for the trans. Going to use to mounting mounts for it instead of the single middle mounting point. Will all be mounted with poly mounts so there will be no give.
