Got the bird back!! More power@ less boost plus carnage pics!
#1
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Got the bird back!! More power@ less boost plus carnage pics!
I got the bird back last week and im in the process of putting break-in miles on it, which sucks mightly. Vengeance did all the work and tuned it but didnt lean on it hard yet. It dynoed 480@7psi. with the stock motor it but down 470@8.5 psi. Here are the specs off the top of my head:
diamond pistons
arp studs
ls6 cam
ls2 heads
ls7 lifters
ported/shimmed oil pump
patriot dual springs
comp 7.400 pushrods
RPM stg V tranny
better timing chain
Comp ratio is 9.48:1
i got the old motor back to see if i could salvage anything and to see what the hell went wrong. here are the pics.
As you can see, broke a ring land off #7 and cracked the block
im planning on pumping the boost up to about 12 psi but im not too sure what i need to do fuel wise to support it partly b/c i dont know what it would make with that much boost. currently it just has 60lbs. and a walbro. any suggestions???
also, its really good to have the bird back after driving a suv for a couple months. thanks again vengeance
diamond pistons
arp studs
ls6 cam
ls2 heads
ls7 lifters
ported/shimmed oil pump
patriot dual springs
comp 7.400 pushrods
RPM stg V tranny
better timing chain
Comp ratio is 9.48:1
i got the old motor back to see if i could salvage anything and to see what the hell went wrong. here are the pics.
As you can see, broke a ring land off #7 and cracked the block
im planning on pumping the boost up to about 12 psi but im not too sure what i need to do fuel wise to support it partly b/c i dont know what it would make with that much boost. currently it just has 60lbs. and a walbro. any suggestions???
also, its really good to have the bird back after driving a suv for a couple months. thanks again vengeance
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#10
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the rods are supposed to be good till 700 and dont plan to push it that hard, just something to have fun with.
i was kinda relieved when it popped, i knew it would happen sometime, just didnt know when.
i was kinda relieved when it popped, i knew it would happen sometime, just didnt know when.
#11
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My buddy did the smae thing when he rebuilt his 346, used stock rods and I don't know why. They say 700hp but like mentioned is it worth the risk to go through that again? Good luck on your setup and I've heard of a racetronix and a Bap pushing to about 600rwhp and maybe a bit more but than it will start to get hard on the pump too. At the price of those 2 parts you might as well do a home made dual intank walbro setup and be done. With the 60#'s you'd be more than sufficient for your needs. Plus more room in the future when the boost bug bites you, LOL
#13
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I would trust the stock rods over a set of 300.00 eBay rods
I ran stock rods with ARP bolts for quite a while with no problems, upside is they are pretty light. RPM would be my only concern and with the stock rodded/forged piston engine I kept it under 6700rpm. I ran 9.70s for a year with that engine and its still running 3 years later in a daily driven heads/cam M6 car.
I did the same thing on #7 with a 150 shot a while ago, very common, I leaned it out a little too much with the nitrous trying to get a tenth and paid the price..
I ran stock rods with ARP bolts for quite a while with no problems, upside is they are pretty light. RPM would be my only concern and with the stock rodded/forged piston engine I kept it under 6700rpm. I ran 9.70s for a year with that engine and its still running 3 years later in a daily driven heads/cam M6 car.
I did the same thing on #7 with a 150 shot a while ago, very common, I leaned it out a little too much with the nitrous trying to get a tenth and paid the price..
#14
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You are right KP about the rpm's and I did forget to mention that my buddy is revving over 7000 with those rods which I wouldn't think of doing. H/C car with hope of spraying a 300 shot, good luck. He does have arp bolts but I don't think thats his concern. However like KP said, if spinning lower under 7000rpm would be a different story.
#15
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You are right KP about the rpm's and I did forget to mention that my buddy is revving over 7000 with those rods which I wouldn't think of doing. H/C car with hope of spraying a 300 shot, good luck. He does have arp bolts but I don't think thats his concern. However like KP said, if spinning lower under 7000rpm would be a different story.