L76/L98 7000+ rpm on standard bottom end
#1
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L76/L98 7000+ rpm on standard bottom end
After recent tuning events on my high comp 12.0:1 E85 running L76, its still making hp to 6900rpm. albeit my fuel injectors are maxed out at the moment. any feedback from GenIV owners spinning stock bottom ends over 7k?
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I have yet to see a spun rod bearing or failure on a 2001 up rod bolt? Am I missing something here? This interwebs rod bolt stuff is getting out of control. If he was asking about spinning his 98' LS1 that high I would agree though.
With that being said the biggest issue at or above 7000rpm is the factory oiling system.
With that being said the biggest issue at or above 7000rpm is the factory oiling system.
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I have yet to see a spun rod bearing or failure on a 2001 up rod bolt? Am I missing something here? This interwebs rod bolt stuff is getting out of control. If he was asking about spinning his 98' LS1 that high I would agree though.
With that being said the biggest issue at or above 7000rpm is the factory oiling system.
With that being said the biggest issue at or above 7000rpm is the factory oiling system.
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Oh did hot rod magazine run that engine down the track lol?!!!!!!!!
Oh wait that was not a question, that was a statement hiddin in a question. They did not run it down the track.
I speak from actual experiance and I have made over 800rwhp on at least 5 more stock bottom end gen3 and 4 engines then you. I say 5 beacuse that is how many I have tuned at that level. I know from actual experiance that they will bend rods at 900rwhp if you race them on the track and not just on the dyno.
BTW we have 4 engine dynos and 1 chassis dyno here, interwebs knowladge may not be as keen as yours though.
Oh wait that was not a question, that was a statement hiddin in a question. They did not run it down the track.
I speak from actual experiance and I have made over 800rwhp on at least 5 more stock bottom end gen3 and 4 engines then you. I say 5 beacuse that is how many I have tuned at that level. I know from actual experiance that they will bend rods at 900rwhp if you race them on the track and not just on the dyno.
BTW we have 4 engine dynos and 1 chassis dyno here, interwebs knowladge may not be as keen as yours though.
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It was a fooking joke. I never said that you couldn't do it. How durable are they?
I can't even get down the track with 5-700 hp with out tearing **** up. Friday night the fly wheel let go and took out the starter gear and blew a hole in the bell housing.
I can't even get down the track with 5-700 hp with out tearing **** up. Friday night the fly wheel let go and took out the starter gear and blew a hole in the bell housing.
Last edited by 1lejohn; 01-22-2012 at 07:55 PM.
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Oh did hot rod magazine run that engine down the track lol?!!!!!!!!
Oh wait that was not a question, that was a statement hiddin in a question. They did not run it down the track.
I speak from actual experiance and I have made over 800rwhp on at least 5 more stock bottom end gen3 and 4 engines then you. I say 5 beacuse that is how many I have tuned at that level. I know from actual experiance that they will bend rods at 900rwhp if you race them on the track and not just on the dyno.
BTW we have 4 engine dynos and 1 chassis dyno here, interwebs knowladge may not be as keen as yours though.
Oh wait that was not a question, that was a statement hiddin in a question. They did not run it down the track.
I speak from actual experiance and I have made over 800rwhp on at least 5 more stock bottom end gen3 and 4 engines then you. I say 5 beacuse that is how many I have tuned at that level. I know from actual experiance that they will bend rods at 900rwhp if you race them on the track and not just on the dyno.
BTW we have 4 engine dynos and 1 chassis dyno here, interwebs knowladge may not be as keen as yours though.
#12
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stock L92 heads were decked 100thou to get compression up to ~12.0:1, PTV is good as i'm running a stock LS2 cam (with valve springs, LS7 lifters, pushrods), just for ***** and giggles (ultimate budget build). yeah ARP bolts are easy to do, but as been mentioned, very little to no feedback on people killing rods or rod-bolts on a GenIV.
few fellow aussie drag racers have spun regularly to 7000-7200 stock. curious who overhere has done it.
few fellow aussie drag racers have spun regularly to 7000-7200 stock. curious who overhere has done it.
#15
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i know of someone with a stupid size cam with a 6000 convertor who spun his to 7800 (with ARP rod bolts), this was for a bit of run-out off top of peak power.
3 pedals, thanks for feedback.
3 pedals, thanks for feedback.
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stock L92 heads were decked 100thou to get compression up to ~12.0:1, PTV is good as i'm running a stock LS2 cam (with valve springs, LS7 lifters, pushrods), just for ***** and giggles (ultimate budget build). yeah ARP bolts are easy to do, but as been mentioned, very little to no feedback on people killing rods or rod-bolts on a GenIV.
few fellow aussie drag racers have spun regularly to 7000-7200 stock. curious who overhere has done it.
few fellow aussie drag racers have spun regularly to 7000-7200 stock. curious who overhere has done it.