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Old 11-27-2007, 06:44 PM   #1
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Default Any changes made from 95-2000 series 2 motor?

I was wondering if a motor from a 95 bonneville series 2 is the same as a year 2000 series 2 motor? were there any changes made in those 5 years? just want to know out of curisoty.

what was changed when the went to series 3?
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Old 11-27-2007, 06:46 PM   #2
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its not all that different, but they did get a new throttle body in 98, new heads in 98, etc...

the s3 L67 has a new LIM, SC, TB, etc...
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Old 11-27-2007, 06:51 PM   #3
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In 2000, the L36 got an updated UIM that increased it'* lifespan to around 100-150k miles. Basically, from what I've heard, it strengthened the EGR outlet, but it still melts. I don't think we've seen as many failures as the 95-99 L36 but I might be wrong...
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Old 11-27-2007, 07:47 PM   #4
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The throttle bodies changed 2-3 times from 95-2000. The 95 S2 L67 uses a M62 while 96-2000 use an M90 (earlier version M90s use different vaccum routing.) Among all kinds of other things changes.


The S3 L32 (supercharged) got a new SC, TB(with drive by wire system), LIM, smaller fuel injectors (with returnless fuel system) & hot forged powdered coated connecting rods which are stronger then L67 rods.


Ed
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Old 11-27-2007, 08:55 PM   #5
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Quote:
but they did get a new throttle body in 98,
the throttle body change was in 99 the 98 is still whit the post
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Old 11-27-2007, 09:17 PM   #6
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They changed the tb plate from brass to aluminum on L36 in 98 I think... I could be wrong
also, L36 tb'* after 1996 do not have the secondary vacc port because the tranny'* after 96 are not vacc controlled the are electric.
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Old 11-27-2007, 09:23 PM   #7
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Quote:
They changed the tb plate from brass to aluminum on L36 in 98 I think...
my 98 TB has the brass plate but the 00 TB i got has the funny looking aluminium one
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Old 11-29-2007, 11:32 AM   #8
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Heads, cam and intake remained the same?
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Old 11-29-2007, 11:36 AM   #9
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Quote:
Originally Posted by roadtech195
They changed the tb plate from brass to aluminum on L36 in 98 I think... I could be wrong
also, L36 tb'* after 1996 do not have the secondary vacc port because the tranny'* after 96 are not vacc controlled the are electric.
Nope... 1997 L36'* all still got the 4T60-E with the Vac controlled Modulator... 1998 left the L36 minus a Vac port as it went to the 65-E


For the SC Application this is different...

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Old 11-29-2007, 12:07 PM   #10
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Quote:
Originally Posted by harofreak00
the s3 L67 has a new LIM, SC, TB, etc...
The S3 supercharged 3800 is an L32 not an L67
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