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| Simplify Flywheel Swap Please (Page 1/1) |
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rehoward
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JUN 17, 01:33 AM
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I have a 1986 Fiero with the manual 5 speed trans and 2.8 V6. I am planning to put a 2004 3800SC motor in it this summer.
I have read thread after thread on what flywheel to use for the swap and it seems that there are a lot of varying opinions on
this topic.
I was hoping that someone can cut through all the mud and just say what needs to be done. It looks like I can use a stock 3800
flywheel if I have the face thickness machined down. If true, machined to what dimension? After machining will it need to be surface ground?
I have also read that it will need to be rebalanced. Rebalanced to what spec? I assume the average machine shop will have no clue regarding this
so what can I do?
And lastly, I would like to put a higher performance clutch disc in it and also a pressure plate with increased pressure to handle the SC's torque.
Where can I find these without breaking the bank? And while I am thinking of it, will the 3800 throw-out bearing, throw-out fork, and linkage work
for the swap?
I am retired and on a tight budget so I need to get this done without buying high priced racy stuff with an expensive name. I don't have extra money to spend
for fancy names.
I was considering buying a new flywheel from Rock Auto, which are cheap, and having it machined and balanced. Maybe a factory HD clutch exists for a 3800 or something
similar and which is more affordable than name brands?
I plan on tweaking the SC with a smaller pulley and incorporating an intercooler. Need cheap alternatives for these items as well.
So there it is. Horsepower on the cheap. I am sure there are items out there that will work without paying the high price of fancy names. Help me out here.
Thanks!
Randy
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gtxbullet
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JUN 18, 06:07 PM
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| quote | Originally posted by rehoward:
I have a 1986 Fiero with the manual 5 speed trans and 2.8 V6. I am planning to put a 2004 3800SC motor in it this summer.
I have read thread after thread on what flywheel to use for the swap and it seems that there are a lot of varying opinions on
this topic.
I was hoping that someone can cut through all the mud and just say what needs to be done. It looks like I can use a stock 3800
flywheel if I have the face thickness machined down. If true, machined to what dimension? After machining will it need to be surface ground?
I have also read that it will need to be rebalanced. Rebalanced to what spec? I assume the average machine shop will have no clue regarding this
so what can I do?
And lastly, I would like to put a higher performance clutch disc in it and also a pressure plate with increased pressure to handle the SC's torque.
Where can I find these without breaking the bank? And while I am thinking of it, will the 3800 throw-out bearing, throw-out fork, and linkage work
for the swap?
I am retired and on a tight budget so I need to get this done without buying high priced racy stuff with an expensive name. I don't have extra money to spend
for fancy names.
I was considering buying a new flywheel from Rock Auto, which are cheap, and having it machined and balanced. Maybe a factory HD clutch exists for a 3800 or something
similar and which is more affordable than name brands?
I plan on tweaking the SC with a smaller pulley and incorporating an intercooler. Need cheap alternatives for these items as well.
So there it is. Horsepower on the cheap. I am sure there are items out there that will work without paying the high price of fancy names. Help me out here.
Thanks!
Randy |
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Long story short, get a machined flywheel from Fierorog (buying your own and machining it is rarely good enough as they need to be properly counter balanced. if a shop can match the counterbalance profile from the stock unmachined flywheel to the machined one (before and after) then go for it)
8 new GM flywheel to crankshaft mounting bolts, p/n: 24505092, or ARP, but I don't remember the part number.
Clutch, for a stock 3800 Supercharged engine in a Fiero will require a Spec 3+ (NOT the Spec 3, which chatters) that is for your specific transmission.
6 new GM or ARP Clutch bolts
as for cutting through the muck as you asked....https://www.fiero.nl/forum/Forum2/HTML/139530.html
Fiero Austin has already created a fantastic guide to 3800 convert Fieros. He updates it too.
Also, this needs to be posted in the Technical/Advice section. The Mall is for Sales and Trades[This message has been edited by gtxbullet (edited 06-18-2024).]
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rehoward
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JUN 18, 06:19 PM
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Hmm, what am I missing? The last reply seems to have no content except for quoting me.
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shemdogg
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JUN 19, 08:15 AM
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Just messaged you his phone number
shem
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lou_dias
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JUN 28, 03:23 PM
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