Boost limit with stock SB,but LQ9 heads
05-21-2005, 03:00 PM
#1
Boost limit with stock SB,but LQ9 heads since im going to drop the CR with a set of LQ9 heads can i run more boost and roughly how much more while still being safe?i was only looking ro run 7-8 psi anyways but seeing as how im going to have about a 9.1:1 CR can i run more without a problem?itll be intercooled BTW
05-21-2005, 08:25 PM
#3
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I was in the same situation. I was told you could do 10 psi on a good tune. I just went ahead and forged my short block. It was 2199 total from SDPC not shipped. With stock a crank,JE piston's -24cc,callies rods,arp bolts etc. I was also told a LQ9 head on anything less that a 4.00 bore is not worth it.
05-21-2005, 11:51 PM
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Originally Posted by mdhmi
Not all boost is created equally. Are we talking about a blower or a turbo car? What type of cam?
Mark
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05-22-2005, 11:31 AM
#12
im wondering if JMBOWNWS6 said that cause of their cost maybe to get a set of LQ9's but i got my set for $400 shipped and im just prolli doing a minor home port get valves and transfer my double springs and TI retainers over.i think that'll do fairly good right?
05-22-2005, 12:27 PM
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I dont think he said it casue of that, you can get a nice set of heads for alot less that the 2100 he spent on getting the motor forged.
I think his point is that he feels the money is better spent in the short block than on the heads. You can compensate compressoin with your pistons, they are cheaper than the heads, and will be a stronger, longer lasting alternative.
He seems more like the kind of guy that wants to do it once and do it right, thats all. For most replacing the engine isnt the first thing they want to jump into, alot of these cars are primary transportation.
Most of the cars are either paid off, or getting close, and I think that is why you are seeing more fast cars comming out. And people are willing/able to put more performance parts on these cars.
I think his point is that he feels the money is better spent in the short block than on the heads. You can compensate compressoin with your pistons, they are cheaper than the heads, and will be a stronger, longer lasting alternative.
He seems more like the kind of guy that wants to do it once and do it right, thats all. For most replacing the engine isnt the first thing they want to jump into, alot of these cars are primary transportation.
Most of the cars are either paid off, or getting close, and I think that is why you are seeing more fast cars comming out. And people are willing/able to put more performance parts on these cars.
05-22-2005, 02:43 PM
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Originally Posted by 69firebird
I dont think he said it casue of that, you can get a nice set of heads for alot less that the 2100 he spent on getting the motor forged.
I think his point is that he feels the money is better spent in the short block than on the heads. You can compensate compressoin with your pistons, they are cheaper than the heads, and will be a stronger, longer lasting alternative.
He seems more like the kind of guy that wants to do it once and do it right, thats all. For most replacing the engine isnt the first thing they want to jump into, alot of these cars are primary transportation.
Most of the cars are either paid off, or getting close, and I think that is why you are seeing more fast cars comming out. And people are willing/able to put more performance parts on these cars.
I think his point is that he feels the money is better spent in the short block than on the heads. You can compensate compressoin with your pistons, they are cheaper than the heads, and will be a stronger, longer lasting alternative.
He seems more like the kind of guy that wants to do it once and do it right, thats all. For most replacing the engine isnt the first thing they want to jump into, alot of these cars are primary transportation.
Most of the cars are either paid off, or getting close, and I think that is why you are seeing more fast cars comming out. And people are willing/able to put more performance parts on these cars.
ED is right on with that. Id rather do it now than see my car go boom bitch like the other 4 cars in the shop I help out at. All LS1's. I made the 4.00 statement because Brent at TEA and Brian told me not to go with those heads on a 347. Thats why I said that. I went thru this whole big deal with FFHP sending me fake TEA heads and got my $ back and just ended up getting a forged 347. Got my 5.7's reworked with bigger valves and orderd the TEA gold spring kit with the FM9 cam. And if you still have those injectors let me know
I dont think my 42#'s are going to make the cut. If you want all out HP then get the heads. Like ED said I went reverse of that. I did the pistons. Joe M
05-22-2005, 03:12 PM
#17
yeah i dont have the cash now for a forged SB so i figured these would help.and i thought that $400 for a set of LQ9's was pretty darn good,i already have springs and retainers like i said,so i get valves and do a minor home port(just gasket match type deal) and have a pretty nice set of LQ9 for only like $600.and this is my DD.
PSJ id love to see 550-600rwhp...but im worried about my rods bolts!since its a 98 TA
PSJ id love to see 550-600rwhp...but im worried about my rods bolts!since its a 98 TA
05-22-2005, 07:36 PM
#19
nope not yet,still waiting on fans cutout and EBoost and valves....ie another $1200 or so.lol.im getting there...then ill be 
come on guys keep it going the more input on this the better so i get a good concensus on how much boost i can throw at Lucille! 
come on guys keep it going the more input on this the better so i get a good concensus on how much boost i can throw at Lucille!
05-22-2005, 07:53 PM
#20
Originally Posted by JMBLOWNWS6
I was in the same situation. I was told you could do 10 psi on a good tune. I just went ahead and forged my short block. It was 2199 total from SDPC not shipped. With stock a crank,JE piston's -24cc,callies rods,arp bolts etc. I was also told a LQ9 head on anything less that a 4.00 bore is not worth it.
