what r the differances between Series II and Series III motors?
#1
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what r the differances between Series II and Series III motors?
i was looking at a 2003 Bonneville with a Series II. my girlfriends sister has a 2004 Grand Prix GT2 with a Series III. what r the differances and benefits of each if one is better than the other.
#2
DINOSAURUS BOOSTUS
Expert Gearhead
First off, there is no such car GT2, it'* still a GTP.
Differences are a Gen V M90 instead of the Gen 3, possibly larger valves and different piston rods. Drive by wire vs cable for TB control.
Differences are a Gen V M90 instead of the Gen 3, possibly larger valves and different piston rods. Drive by wire vs cable for TB control.
#3
Artist
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The series III is better but never came in a Bonneville. You can change the top end pretty easy by putting a GenV blower on your Series 2. The L32 connecting rods are also stronger. I'm not 100% sure on these next two facts but I don't think the ETC TB from the Series III can be used with our system and also I think the intake was updated to allow better flow.
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put a blower on series II to make it a series III? im confused. Now such thing as a Grand Prix GT2? Im looking at it. This car has all the options including a NON supercharged series III motor
#5
DINOSAURUS BOOSTUS
Expert Gearhead
Reminds me of the Porshe GT3.
Pontiac Grand Prix
SE
GT
GTP
GXP
If you see a badge that says GT2, please post a picture because it'* a new one. Just hit up Rockauto and search for parts. No listings for GT2.
And yes.. Most people take the Gen V (more efficient) charger and bolt it onto their S2 motor. It'* not exactly an S3 motor, but it'* got the biggest improvement.
Pontiac Grand Prix
SE
GT
GTP
GXP
If you see a badge that says GT2, please post a picture because it'* a new one. Just hit up Rockauto and search for parts. No listings for GT2.
And yes.. Most people take the Gen V (more efficient) charger and bolt it onto their S2 motor. It'* not exactly an S3 motor, but it'* got the biggest improvement.