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03-21-2012, 10:22 PM
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#1 |
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Member
 Join Date: Feb 2012
Location: Winona, MN
Posts: 110
1997 SC2
1995 SL1
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99 SL2 Dohc motor change with 98 Dohc donor
Pulling the 99 and have a 98 donor with lower miles to swap. Can I leave the tranny in and pull the 99 out the top for easiest job? Or should i pull motor and trans together? 99 auto isin good shape. TY.......
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03-21-2012, 10:39 PM
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#2 |
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Master Member
Join Date: Feb 2005
Location: Blackfoot, ID
Posts: 6,483
1999 SC2
1999 SC1
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
Exhaust is different, otherwise the swap should be straightforward. Engine can come out by itself, or with the trans. Which is easier is a matter of opinion (which sometimes varies on whether it's an auto or manual).
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SaturnSeries.net owner |
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03-21-2012, 10:53 PM
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#3 |
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Super Member
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
If the 99 has AIR injection you will have an issue with that.
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03-21-2012, 10:56 PM
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#4 |
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Master Member
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
If they're both automatic, leave the transmissions in place: there is plenty of clearance, and it's obviously easier/faster. I've heard that with manuals, it's more difficult to leave the transmission in place, and as such, most people recommend pulling the manual transmission with the engine (but I don't have any first hand experience with manuals).
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High compression build: .033" shaved/ported head, flat-faced valves; gen3 rods, pistons, tie-plate; OE header, custom CAI, SDA street cams with adjustable sprockets, WBO2, SAFCII, LSD. ASE A1-A8+L1 |
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03-21-2012, 11:27 PM
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#5 |
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Member
Join Date: Feb 2012
Location: Winona, MN
Posts: 110
1997 SC2
1995 SL1
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
How do i get around the air injection. Don't suppose i can cap it off????? Doesn't look like there's tooooo much volume in the injection.
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03-21-2012, 11:32 PM
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#6 |
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Member
Join Date: Feb 2012
Location: Winona, MN
Posts: 110
1997 SC2
1995 SL1
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
The 98 has a manual tran and it's already pulled. I have to take the flex plate off but other than that i should be good to go. I'm itching to get this project finished so i can start on my 95 swap from auto to manual......
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03-22-2012, 12:06 AM
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#7 |
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Super Member
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
Are you putting the 99 into a 98 or the other way around?
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03-22-2012, 10:12 AM
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#8 |
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Member
Join Date: Feb 2012
Location: Winona, MN
Posts: 110
1997 SC2
1995 SL1
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
Putting a 98 dohc into a 99 dohc. TY......
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03-22-2012, 10:37 AM
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#9 |
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Super Member
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
You will have to keep the 99 PCM and if the 99 engine has air injection there is no easy way to shift it over to the 98. So, the first question is this: Does the 99 engine have the AIR system?
The exhaust head pipe has to be changed to a 98 to fit the 98 manifold. |
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03-22-2012, 12:16 PM
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#10 |
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Member
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
What makes the 99 pcm special? Shouldn't any odb2 work?
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03-22-2012, 03:08 PM
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#11 |
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Super Member
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Re: 99 SL2 Dohc motor change with 98 Dohc donor
The PCM is generally body specific. Transmission, SDM and cluster are the big ones.
So, does the 99 have the AIR system? |
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