11-22-2009, 02:19 PM
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#1
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GX Member
Join Date: Nov 2009
Location: kentucky
Posts: 54
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Total noob question
ok so i was looking at my owner's manual and it dose not list the 2.4 ld9 as a option it list the 2.4 l4 with the vin letter being a t now my question is... is the ld9 and the l4 the same engine if so why dose the owner's manual call it by the l4 and if not whats the difference between them?
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11-22-2009, 02:22 PM
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#2
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Female.
Join Date: Apr 2008
Location: Fort Hood, TX
Posts: 1,809
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I4 just means it's a 4 cylinder in the I shape. it's like saying V6... a 6 cylinder in the V shape.
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2012 Hyundai Veloster - new 40 MPG DD!! 
1990 Nissan 300ZX Twin Turbo 5 speed - "Zeus"
2005 Nissan Titan SE King Cab 4x4 - gas guzzler
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11-22-2009, 02:34 PM
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#3
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GX Member
Join Date: Nov 2009
Location: kentucky
Posts: 54
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ok cus me and my uncle got into it about it so thanks
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11-22-2009, 03:06 PM
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#4
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AleroMoB
Join Date: Jun 2008
Location: Lumberton, NC
Posts: 389
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Sorry but I kinda got to laugh........
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2001 Oldsmobile Alero 4Dr GL2 w/ 2005 GAGT Motor 
CC & PB, Tinted Tails, 3K HIDs (Lows/Fogs), GAGT Mirrors, Flowmaster Exhaust, D/S Rotors, CAI, Rockford Fosgate T400-4 T800-4, 1 15" C3, Rockford F 5.25/R 6x9
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11-22-2009, 03:44 PM
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#5
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GX Member
Join Date: Nov 2009
Location: kentucky
Posts: 54
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i thought i was right i just wanted to make sure lol
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11-22-2009, 03:45 PM
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#6
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GLS member
Join Date: Apr 2008
Location: Roma, TX
Posts: 1,543
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"I" basically means all pistons are in line, while with a "V" the pistons are to the left and right side of the block (Ex. V4 would have two pistons on the left and two on the right I4 has all 4 pistons in one row) .
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http://www.cardomain.com/id/nothingbutolds
Cleared corners-RF P1 Subs- RF 201S Amp- Memphis Audio 4x6's and 6x9's-JVC Arsenal KD-APD89 Head Unit-front and rear z-spec strut tower brace- KYB GR2 struts- Intrax Springs- Magnaflow Muffler
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11-22-2009, 03:49 PM
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#7
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AleroMoB
Join Date: Jun 2008
Location: Lumberton, NC
Posts: 389
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Pappa Smurf is the only one with a V4
__________________
2001 Oldsmobile Alero 4Dr GL2 w/ 2005 GAGT Motor
CC & PB, Tinted Tails, 3K HIDs (Lows/Fogs), GAGT Mirrors, Flowmaster Exhaust, D/S Rotors, CAI, Rockford Fosgate T400-4 T800-4, 1 15" C3, Rockford F 5.25/R 6x9
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11-22-2009, 04:51 PM
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#8
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,916
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I believe he's typing "L" when he says "l4" in his original post, not "I." Use capital letters when you're typing something like the L for liter, it eliminates a lot of confusion. The owners manual and many repair guides will call inline-4 engines "L4" to say inline-4. The owners manual of all inline-4s are going to call the engine an L4.... much like all the V8's are going to be called a V8.
The LD9 is the engine code for GM's 2.4L Twin Cam which is the name of that specific engine. Like LS1, LA1, VQ35HR.
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11-22-2009, 07:18 PM
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#9
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Aleromod's most pointless thread starter
Join Date: Aug 2007
Location: Jersey (north and south are 2 diff. states)
Posts: 2,349
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2 more different types you may see in different make automobiles would be rotary or flat. flat would be like the "boxer style" engine in a subaru, where the piston are flat/horizontal.
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Quote:
Originally Posted by adam337
whats with all the useless threads lately?..
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New project 1992 460 big block ford notchback mustang
Goal - Mid 11s all motor.
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11-22-2009, 07:21 PM
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#10
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GL Member
Join Date: Apr 2006
Location: Torrington, CT
Posts: 734
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and the rotary??? ^ think you forgot it 
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11-22-2009, 07:38 PM
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#11
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Aleromod's most pointless thread starter
Join Date: Aug 2007
Location: Jersey (north and south are 2 diff. states)
Posts: 2,349
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Quote:
Originally Posted by Vic28
and the rotary??? ^ think you forgot it |
rotary is a little bit harder to explain lol. well I'll try.....there's a rotor instead of a piston. the rotor rotates on a output shaft (instead of a crankshaft). the intake and exhaust ports are in the oval-shaped router housing. the rotor travels around three times to complete the combustion cycle.
__________________
Quote:
Originally Posted by adam337
whats with all the useless threads lately?..
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New project 1992 460 big block ford notchback mustang
Goal - Mid 11s all motor.
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11-22-2009, 10:30 PM
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#12
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GX Member
Join Date: Nov 2009
Location: kentucky
Posts: 54
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ok so thats what i was thinking and my uncle kept confusing me on it lol he thinks the L4 is a sportier version of the LD9 lol
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