122 to LD9 - Performance Forum

Forum Post / Reply
You must log in before you can post or reply to messages.
122 to LD9
Sunday, July 25, 2010 9:10 PM
I was thinking about taking the valves and new camshafts for a LD9 and fitting them to a 122, 2002 cavalier models both. Should I proceed or just swap in a LD9 instead? Any helpful input would be greatly appreciated.

Atlanta Region SCCA
28 ST
BatlGround Motorsports

Re: 122 to LD9
Sunday, July 25, 2010 9:16 PM
Whats a 122?




Re: 122 to LD9
Sunday, July 25, 2010 9:21 PM
Same as the 2200, the motor in the base 2002 cavalier.

Atlanta Region SCCA
28 ST
BatlGround Motorsports
Re: 122 to LD9
Sunday, July 25, 2010 9:32 PM
Make sure you weld the head on properly.


Boost gets you laid

180hp in 1989 or 260hp in 2008, you decide. Quad < Ecotec

Re: 122 to LD9
Sunday, July 25, 2010 9:38 PM
doesnt one engine take one cam
and the other 2!!!



8 psi with m62 and IAT under 100
Re: 122 to LD9
Sunday, July 25, 2010 9:48 PM
@ Tinkles: So it isn't a bolt-on?
@ Cody Star: Yeah, that's why I was taking the valves and both camshafts from an LD9.

Also what changes occur in the timing?

Atlanta Region SCCA
28 ST
BatlGround Motorsports
Re: 122 to LD9
Sunday, July 25, 2010 10:08 PM
dude that will have 3 cam shafts. PA PA PA PA PA PA POWER!!!!



Re: 122 to LD9
Monday, July 26, 2010 12:47 AM
So your going to put 2 cams into a single cam motor? Id love to hear how this works...

Simple answer, if you want a dohc, you're not achieving this with a ln2 or 2200 (or whatever this fabled 122 is??)...the ln2 and 2200 are single cam, and single cam ONLY. End of story.

If you want dohc, you need a ld9 or ecotec (and personally id get the eco)






Re: 122 to LD9
Monday, July 26, 2010 3:37 AM
^^ and this starts again... well i'd personally keep my LD9 and enjoy the extra hp and displacement.

Original Poster... you are sadly misinformed

1) there is no 122, someone must have said "LN2" and you misheard/remembered them
2) the LN2 is an overhead valve engine, meaning the cam is in the block, and the valves are actuated by the cam pushing pushrods in to rocker arms on the springs to open and close the valves. The timing chain is internal to the block, There would be no way... even if all the oil and coolant passages line up, to use a DOHC head on an LN2 block... or use DOHC cams in an LN2 head... look at your motor and just ask yourself, where would the cam sprockets go?

you are going to have to motor swap to have a DOHC.



Re: 122 to LD9
Monday, July 26, 2010 4:23 AM
lol



Re: 122 to LD9
Monday, July 26, 2010 4:59 AM
Sorry about the 122 bit, but it is the 2.2L 2200, not the LD2. Still the same issue?

Atlanta Region SCCA
28 ST
BatlGround Motorsports

Re: 122 to LD9
Monday, July 26, 2010 6:42 AM
there must be a language barrier. no one can be this thick.



JBO Stickers! Get yours today!
Re: 122 to LD9
Monday, July 26, 2010 6:56 AM
LMAO... this is great...

Yes you still have the same issue, both the LN2 and the 2200 are OHV.



Paying someone to install parts and bragging about it being fast, is like watching someone bang your wife and being proud to raise their kids.
Re: 122 to LD9
Monday, July 26, 2010 7:58 AM
the GM 3.4 twin dual cam 60 degree V6 has DOHC and its got a cam in the block too....



Oldsmobile all motor > Saab/Opel boosted
Re: 122 to LD9
Monday, July 26, 2010 8:27 AM
Khari Rockward wrote:Sorry about the 122 bit, but it is the 2.2L 2200, not the LD2. Still the same issue?

i said LN2 not LD2

and the 2.2l 2200 SFI motor in a 2002 cavalier has the engine RPO Code "LN2"

once again ask yourself where the cam sprocket is going to line up to set timing with...



Re: 122 to LD9
Monday, July 26, 2010 11:36 AM
I think my IQ just dropped a few points from reading this.


"In Oldskool we trust"
Re: 122 to LD9
Monday, July 26, 2010 3:32 PM
z yaaaa wrote:the GM 3.4 twin dual cam 60 degree V6 has DOHC and its got a cam in the block too....


you understand DOHC means "dual overhead CAM"... meaning the cam is in the head, OHV being the valves only



Re: 122 to LD9
Monday, July 26, 2010 7:57 PM
This is how a 4cylinder OHV engine is designed: This replicates the LN2 / 2200 / OHV in the Cavy.



This is how a 4cylinder DOHC engine is designed: This basically replicates the design of the LD9 / 2.4 or the L61 / Ecotec.




As you should be able to see here, before even considering comparable measurements or tolerances ... these engines are not even remotely designed the same. On a DOHC engine, that contains two camshafts, you have an EXHAUST cam and an INTAKE cam... on a single cam engine (in this case the OHV) you have the lobes for both intake & exhaust valves, on the same shaft. NOTHING is designed the same. NOTHING is compatible between these engines.

If you would even think that this is a possibility, you do not have the ability to do an engine swap properly. Leave the engine that is in your car, in your car, untouched, and STOP TRYING TO MOD. Please read everything you can about vehicle/engine mechanics. Once you do proper research and understand how uneducated your original post is and actually have any clue about how an engine works... maybe then you will be able to successfully pick up a wrench.



Re: 122 to LD9
Monday, July 26, 2010 8:02 PM
let me just add that the eco and LD9 both have timing chains... but otherwise very accurate



Re: 122 to LD9
Monday, July 26, 2010 8:56 PM
Rich Grayo Jr. wrote:there must be a language barrier. no one can be this thick.

With the amount of misspellings and total lack of grammar & punctuation I regularly see on any given forum I may visit, this is no surprise.

Folks like this remind me of some things I've said in the past... Things like:

"Some people just shouldn't be allowed near so-much as a wheel-barrow, let alone operate an automobile."

"If it's 'Just a car...' to you, I have the perfect vehicle for you: A seat on a bus!"

And my big classics:

"A hot car don't make-up for a 'chit driver!"

"Overconfidence kills... Incompetence is suicide!"




Go beyond the "bolt-on".

Re: 122 to LD9
Tuesday, July 27, 2010 2:56 AM
just swap the ls1 cam in there, its also in block so would clearly work



Eat my shift
Re: 122 to LD9
Tuesday, July 27, 2010 5:22 AM
M2 [@DesertTuners.com wrote:]just swap the ls1 cam in there, its also in block so would clearly work


yeah, do this



Im a Xbox 360 fanboy...and damn proud of it!!
Re: 122 to LD9
Tuesday, July 27, 2010 5:33 AM
Dan Cummings wrote:
z yaaaa wrote:the GM 3.4 twin dual cam 60 degree V6 has DOHC and its got a cam in the block too....


you understand DOHC means "dual overhead CAM"... meaning the cam is in the head, OHV being the valves only


lol yes, the cam in the TDC block is nothing more than a blank.



Oldsmobile all motor > Saab/Opel boosted
Re: 122 to LD9
Tuesday, July 27, 2010 11:02 AM
z yaaaa wrote:
Dan Cummings wrote:
z yaaaa wrote:the GM 3.4 twin dual cam 60 degree V6 has DOHC and its got a cam in the block too....


you understand DOHC means "dual overhead CAM"... meaning the cam is in the head, OHV being the valves only


lol yes, the cam in the TDC block is nothing more than a blank.


You are correct,i do believe the timing belt gear runs right off the end of the cam,correct me if im wrong...my mother had this engine is a 4 door 95 grand prix gt....kind of a PITA to be honest lol




Forum Post / Reply
You must log in before you can post or reply to messages.

 

Start New Topic Advanced Search