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2.8 Crankshaft with factory reluctor wheel by La fiera
Started on: 10-21-2020 09:00 AM
Replies: 9 (344 views)
Last post by: fierofool on 10-21-2020 06:52 PM
La fiera
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Report this Post10-21-2020 09:00 AM Click Here to See the Profile for La fieraSend a Private Message to La fieraEdit/Delete MessageReply w/QuoteDirect Link to This Post
Hey guys, I need your help. Since Fieros didn't come with this crank and according to the rules of the forum I had to ask here.
I'm gathering parts for my next Supernatural "Screamer" short block and the main component is the 3.0' stroke of the 2.8.
The late 80's Beretta's and Chevy Celebrity Sport came with it if I'm not mistaken. Can anyone guide me to one or maybe if you
have one laying around can sell it to me?

Thanks!
Rei
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claude dalpe
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Report this Post10-21-2020 10:10 AM Click Here to See the Profile for claude dalpeSend a Private Message to claude dalpeEdit/Delete MessageReply w/QuoteDirect Link to This Post
The engine block I gave to Pm Brunelle was a Beretta 3.1 block with aluminum head, the cranksaft has the reluctor for the crank senser and Pm Brunelle reassembled it like a turbo fiero the 3.1 block is better than the block 2.8 ask Pm Brunelle.

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La fiera
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Report this Post10-21-2020 11:15 AM Click Here to See the Profile for La fieraSend a Private Message to La fieraEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by claude dalpe:

The engine block I gave to Pm Brunelle was a Beretta 3.1 block with aluminum head, the cranksaft has the reluctor for the crank senser and Pm Brunelle reassembled it like a turbo fiero the 3.1 block is better than the block 2.8 ask Pm Brunelle.

Claude


Hello Claude!
What I need is the 3.0inch stroke crank from the 2.8, the 3.1 has 3.31inch stroke just like the 3.4L and same bore as the 2.8.

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Blacktree
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Report this Post10-21-2020 12:07 PM Click Here to See the Profile for BlacktreeClick Here to visit Blacktree's HomePageSend a Private Message to BlacktreeEdit/Delete MessageReply w/QuoteDirect Link to This Post
The Gen-2 V6 is what you're looking for. They were 2.8 and 3.1 liters. According to wikipedia, the 2.8 was used in these vehicles:
  • 1988–1989 Buick Regal
  • 1987–1989 Chevrolet Beretta
  • 1987–1989 Chevrolet Cavalier Z24
  • 1987–1989 Chevrolet Corsica
  • 1987–1989 Pontiac 6000
  • 1988–1989 Pontiac Grand Prix
  • 1987–1989 Chevrolet Celebrity
  • 1987–1989 Oldsmobile Cutlass Ciera
  • 1987–1989 Buick Century
  • 1988-1989 Oldsmobile Cutlass Supreme

These might be hard to find, considering how old they are. Maybe a crank rebuilder has one lying around?

EDIT: Forgot to add, the casting number on the crankshaft should be 481 or 526.

[This message has been edited by Blacktree (edited 10-21-2020).]

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pmbrunelle
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Report this Post10-21-2020 12:17 PM Click Here to See the Profile for pmbrunelleSend a Private Message to pmbrunelleEdit/Delete MessageReply w/QuoteDirect Link to This Post
Not exactly what you were looking for, but:
https://www.rockauto.com/en...gine,crankshaft,5292

A good machine shop could cut notches into the blank wheel. I would copy the same notch shape (notch width and depth) as stock.

If you want to use MegaSquirt with it, you could have a 36-1 pattern cut into the wheel.

The missing tooth doesn't need to be at any particular angle relative to TDC compression #1. In software, you can adjust the trigger offset.
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pmbrunelle
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Report this Post10-21-2020 12:41 PM Click Here to See the Profile for pmbrunelleSend a Private Message to pmbrunelleEdit/Delete MessageReply w/QuoteDirect Link to This Post

pmbrunelle

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Using the car-part website, I found some suitable 2.8 engines:
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La fiera
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Report this Post10-21-2020 03:51 PM Click Here to See the Profile for La fieraSend a Private Message to La fieraEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by pmbrunelle:

Not exactly what you were looking for, but:
https://www.rockauto.com/en...gine,crankshaft,5292

A good machine shop could cut notches into the blank wheel. I would copy the same notch shape (notch width and depth) as stock.

If you want to use MegaSquirt with it, you could have a 36-1 pattern cut into the wheel.

The missing tooth doesn't need to be at any particular angle relative to TDC compression #1. In software, you can adjust the trigger offset.


Thanks Patrick! As long as is internally balanced I can use an external trigger wheel!

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Blacktree
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Report this Post10-21-2020 04:58 PM Click Here to See the Profile for BlacktreeClick Here to visit Blacktree's HomePageSend a Private Message to BlacktreeEdit/Delete MessageReply w/QuoteDirect Link to This Post
In that case, you could also use an '88 Fiero V6 crankshaft. It's also internally balanced, and has a "blank" trigger wheel cast into it.
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StreetRod4
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Report this Post10-21-2020 06:26 PM Click Here to See the Profile for StreetRod4Send a Private Message to StreetRod4Edit/Delete MessageReply w/QuoteDirect Link to This Post
GM also made some short stroke forged cranks for the Chinese market. The LB8 is a 2.6 stroke 2.5l, and the LW9 is a 3in stoke 3.0l. The rod journals are 2.25 iirc but that leaves room for an offset grind if you wanted to have the journals cut to the standard 2.0 size

https://m.alibaba.com/amp/product/60806473686.html
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fierofool
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Report this Post10-21-2020 06:52 PM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post
I believe my wife's 88 Beretta GT crankshaft probably had the reluctor wheel. I don't ever remember seeing any kind of external pickup on it. I also stored someone else's 88 Beretta engine and it didn't have an external pickup.
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