ls1 or lq9 in my desert race truck
i do what i can. 
02-26-2010, 11:19 AM
#26
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Im almost thinking of just a lq9 checked over bottom end, rod bolts, ls6 cam, double roller, springs to accommodate a 228r cam down the road and ls6 intake. How will this perform without all the other big mods like porting/ decking the heads and big cam big injectors and high stall... i dont want to put too much drive train strain until i know everything is ok. then throw the big cam, head work, rockers, injectors, lifters and push rods. does this sound like a good decision?
02-26-2010, 11:45 AM
#27
That doesn't sound like too bad of a plan. You will need to add pushrods to accomodate the big cam. Stock pushrods are very weak. You should also go with a ported LS6 pump since you are doing the cam. I didn't see headers on your list, but I assume you are planning on them. Stock manifolds would really be choking you.
02-26-2010, 12:06 PM
#28
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ILL HAVE TO BUILD MY OWN PIPES AGAIN. SHOULD I GO WITH 1 5/8 OR 1 3/4. ARE THESE SPEEDWAY KITS ANY GOOD?
http://www.speedwaymotors.com/Chevy-...510#tabcontent
http://www.speedwaymotors.com/Chevy-...510#tabcontent
02-26-2010, 01:31 PM
#30
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they look to be high carbon seamed mild tubing, but for the price and what you get it seems like a hell of a deal
Last edited by Go Go Gadget Arms; 02-26-2010 at 02:07 PM.
02-26-2010, 02:16 PM
#31
"5 Stars
Yes, I would recommend this to a friend
great lsx header kit for building turbo manifolds in custom applications
Nate
capitol city performance"
Honestly, if you could use 1 7/8 it might be worth it. The gains would be minimal with the mild set up you intend on starting out with. But, if you raise the compression, or ever stroke it you would see pretty decent gains.
As I said, the LS based engines like to breath.
02-27-2010, 10:31 PM
#32
Im almost thinking of just a lq9 checked over bottom end, rod bolts, ls6 cam, double roller, springs to accommodate a 228r cam down the road and ls6 intake. How will this perform without all the other big mods like porting/ decking the heads and big cam big injectors and high stall... i dont want to put too much drive train strain until i know everything is ok. then throw the big cam, head work, rockers, injectors, lifters and push rods. does this sound like a good decision?
like juicy said, you cant run stock pushrods much over a stock cam. and even on a stock cam, prolonged high RPMs will kill them in a hurry. look into a good single roller timing set so you dont have to clearence your timing cover or shim the oil pump.
03-05-2010, 12:20 AM
#33
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Ill be picking up geovett's LQ9 by the end of the month. im going to get it sent out for rod bolts and new bearings and run it stock to get a soild base line for transmission upgrades and rearend gearing. its going to be over a 70hp gain from the LT1 so i want to do it right in multiple steps.
03-23-2010, 08:16 PM
#34
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We had a set of 1 5/8" long tube headers (TOG) that worked well on a mostly stock LQ4. We had a muffler mounting design problem and keep losing mufflers and kept patching the exhaust headers. TOG was out of business so we switched to Pacesetter 1 3/4". Unfortunately, the 1 3/4" cost us a surprising amount of torque. We went smaller on the muffler to get back some of the torque.
We are using the stock fuel maps. A custom tune might allow us to go back to our regular mufflers. We have been waiting on the tune until we swap out the stock cam. Deciding on a cam is the toughest part.
We are using the stock fuel maps. A custom tune might allow us to go back to our regular mufflers. We have been waiting on the tune until we swap out the stock cam. Deciding on a cam is the toughest part.
04-09-2010, 09:13 PM
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IDK if anyone has mentioned it yet but 2 of the major advantages of running an LQ9 over LS1 is cost and with the iron block you are able to bore and build many times. With aluminum block your only going to get one good bore out of it. I bought a complete LQ9 with harness PCM all accessories everything for $2900. fastfishel@sbcglobal.net
04-09-2010, 09:23 PM
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LQ9 or LS1 Im not sure im posting in the correct location but here it is. Two main reasons to go LQ9 (1)COST- bought mine complete PCM,Harness,Accessories,top to bottom for $2900. (2)Ability to bore more than one time. Iron block you can build and bore several times and alot larger. Aluminum block one good time thats it. Plus with the LQ9 you already start out ahead of the with 364ci.
