stock connecting rods in a 500+ rwhp application
06-07-2005, 05:38 PM
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stock connecting rods in a 500+ rwhp application I need some advice here folks:
I want to build a very dependable 6.0L shortblock for my truck
It will be a FI motor running 8-9lbs of boost.
I have a stock LQ9 crank and rods with 10k on them and would like to use them if this makes sense. My goal is 500rwhp/500rwtq, truck weighs 5600lbs.
I would also like a good measure of dependability.
Is it feasable to stay with the stock LQ9 rods w/some high strength bolts? or should I look elsewhere? The big end on the LQ9 rods are beefier than other stock LS rods, however, I'm not sure that makes much of a difference.
please advise
I want to build a very dependable 6.0L shortblock for my truck
It will be a FI motor running 8-9lbs of boost.
I have a stock LQ9 crank and rods with 10k on them and would like to use them if this makes sense. My goal is 500rwhp/500rwtq, truck weighs 5600lbs.
I would also like a good measure of dependability.
Is it feasable to stay with the stock LQ9 rods w/some high strength bolts? or should I look elsewhere? The big end on the LQ9 rods are beefier than other stock LS rods, however, I'm not sure that makes much of a difference.
please advise
06-07-2005, 08:20 PM
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make sure u have a GOOD tune, and that should be fine. always remember, the engine wasnt built for FI, and ur killing ur engine faster than it should, but as long as u have a good tune, 500hp SHOULD be fine for ur engine imo, but no more than that.
edit: dont take my word for it, because in all honesty, the engines just not built for it, and its always a gamble
edit: dont take my word for it, because in all honesty, the engines just not built for it, and its always a gamble
06-07-2005, 08:48 PM
#3
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Originally Posted by moregrip
I need some advice here folks:
I want to build a very dependable 6.0L shortblock for my truck
It will be a FI motor running 8-9lbs of boost.
I have a stock LQ9 crank and rods with 10k on them and would like to use them if this makes sense. My goal is 500rwhp/500rwtq, truck weighs 5600lbs.
I would also like a good measure of dependability.
Is it feasable to stay with the stock LQ9 rods w/some high strength bolts? or should I look elsewhere? The big end on the LQ9 rods are beefier than other stock LS rods, however, I'm not sure that makes much of a difference.
please advise
I want to build a very dependable 6.0L shortblock for my truck
It will be a FI motor running 8-9lbs of boost.
I have a stock LQ9 crank and rods with 10k on them and would like to use them if this makes sense. My goal is 500rwhp/500rwtq, truck weighs 5600lbs.
I would also like a good measure of dependability.
Is it feasable to stay with the stock LQ9 rods w/some high strength bolts? or should I look elsewhere? The big end on the LQ9 rods are beefier than other stock LS rods, however, I'm not sure that makes much of a difference.
please advise
A "good measure of dependability" with a 500/500 rw engine might be the problem. Is a "good measure" a dozen WOT blasts, or hundreds or ???
06-07-2005, 09:04 PM
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Originally Posted by Old SStroker
A "good measure of dependability" with a 500/500 rw engine might be the problem. Is a "good measure" a dozen WOT blasts, or hundreds or ???
06-08-2005, 07:14 AM
#5
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Originally Posted by moregrip
more like a hundred and some decent mileage, i.e. 100,000
That's probably asking too much of the stock rods. You should be able to solve the problem with $400 or so worth of aftermarket rods. Cheap insurance, IMO.
I don't recall if the LS2 (400 fw numbers) are the same or very similar rods as yours, but you are loooking at 600 fw for your application. That 50% pushes the design safety factor pretty hard.
06-08-2005, 07:27 AM
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Originally Posted by Old SStroker
That's probably asking too much of the stock rods. You should be able to solve the problem with $400 or so worth of aftermarket rods. Cheap insurance, IMO.
I don't recall if the LS2 (400 fw numbers) are the same or very similar rods as yours, but you are loooking at 600 fw for your application. That 50% pushes the design safety factor pretty hard.
I don't recall if the LS2 (400 fw numbers) are the same or very similar rods as yours, but you are loooking at 600 fw for your application. That 50% pushes the design safety factor pretty hard.
