LS Engines Maybe the future of I/O's
02-18-2024, 10:53 AM
#111
Registered
I understand nothing stock at that level nothing on a BBC is either. 200 hrs is pretty good at 1000+HP, not sure how many BBC's last much longer at that level. But I do not have a lot of personal experience, and most people I know at those levels are racing.
Bit of a different thing.
Don't you have these in a old Fountain race boat?
Bit of a different thing.
Don't you have these in a old Fountain race boat?
Yes, they are in Popeye. I’m working on some new power that will be grossly obnoxious that will require ethanol. So, I may turn the LS engines up to 1,200 and put them in the Drambuie Skater when it is ready for power.
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Tartilla (02-18-2024)
02-18-2024, 05:39 PM
#112
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Keep in mind 99% of what comes out of Retters mouth is bull****.
200hrs my a$$.
Been building these so awesome small blocks for like 10 years now, blew up on the dyno , blown up in 2022... GTFO. with your BS
200hrs my a$$.
Been building these so awesome small blocks for like 10 years now, blew up on the dyno , blown up in 2022... GTFO. with your BS
02-18-2024, 06:30 PM
#113
Registered
Actually never blew one up or had a valve train issue. Melted one down because of contaminated fuel...sure, but I haven't' touched the heads. Just replaced pistons and reassembled.
When it comes to burning stuff down or blowing **** up.....that's quite the glass house you are throwing stones from. LMK when you stop having issues.
02-19-2024, 06:07 AM
#114
Platinum Member
Platinum Member
If you take BOOST out of the equation and are simply comparing NA LS deals based on common production bore/.stroke LS stuff to average low hp NA 502 builds (550 to 600 hp), there's really NO comparison.
Yep, a 6.0 LS has great BSFCs because of all of its modern , low friction, efficient designed stuff
YES, you can take a production 6.0 with rect port heads, cam the **** out of it, do a trunnion/valve spring upgrade and BAM, you can make 575 hp (seen it/ done it on my dyno). Its also gonna be a gutless wonder from 1500 to 4800 with a tq peak at or over 5000 and hp peak at 6800
People get too wrapped up in that "easy" hp number with TOTAL disregard to tq, hotrods show up at my shop all the time too with these deals, total turds, owners totally got focused on that romantic hp number. We end up putting a **** TON of stall in and lower gears to make it actually drive GOOD.
You build a 575 hp 509 that makes tq from 2500/3000 up, its gonna pull alot more prop and feel MUCH better.
Your still comparing a 366 ci sb to 509 ci, no tq comparison,
Yep, do a 40,000$+ boosted LS with all kinds of cool goodies, or build one from scratch with a bunch of cubic inches ($$$), sure, it gets much better but that shuts out the dreamers who THINK their gonna shove a 2500$ used 6.0 in their boat with cam upgrade and set the world on fire.
Yep, a 6.0 LS has great BSFCs because of all of its modern , low friction, efficient designed stuff
YES, you can take a production 6.0 with rect port heads, cam the **** out of it, do a trunnion/valve spring upgrade and BAM, you can make 575 hp (seen it/ done it on my dyno). Its also gonna be a gutless wonder from 1500 to 4800 with a tq peak at or over 5000 and hp peak at 6800
People get too wrapped up in that "easy" hp number with TOTAL disregard to tq, hotrods show up at my shop all the time too with these deals, total turds, owners totally got focused on that romantic hp number. We end up putting a **** TON of stall in and lower gears to make it actually drive GOOD.
You build a 575 hp 509 that makes tq from 2500/3000 up, its gonna pull alot more prop and feel MUCH better.
Your still comparing a 366 ci sb to 509 ci, no tq comparison,
Yep, do a 40,000$+ boosted LS with all kinds of cool goodies, or build one from scratch with a bunch of cubic inches ($$$), sure, it gets much better but that shuts out the dreamers who THINK their gonna shove a 2500$ used 6.0 in their boat with cam upgrade and set the world on fire.
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02-19-2024, 07:03 AM
#115
well since you asked look what can be had todays special.........https://www.facebook.com/marketplace...type=top_picks
02-19-2024, 07:13 AM
#116
Registered
LOL OMG that add is funny as F**k.
Alpha SS, 3 point harness on the seats,,,,,,,,,,
Alpha SS, 3 point harness on the seats,,,,,,,,,,
well since you asked look what can be had todays special.........https://www.facebook.com/marketplace...type=top_picks
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02-19-2024, 07:34 AM
#117
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well since you asked look what can be had todays special.........https://www.facebook.com/marketplace...type=top_picks
100-Mph Chaparral Update: First On-Water Tests Promising
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articfriends (02-19-2024)
02-19-2024, 03:51 PM
#118
Registered
I seem to hold grudges for way too long, I should work on that.
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02-20-2024, 08:41 AM
#120
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The LS3/480 has 475 lbft torque and 490 hp on flywheel, let's say it has a gear ratio of 1.56.
The Mercury 450R has 450 hp on the propeller shaft, so it's very comparable in power to the LS3/480, but it has only 439 LBFT of torque or less and it has a 1.6 gear ratio.
The LS3/480 has equal or greater torque from 3,000 rpm to 6,000 rpm.
https://www.google.com/url?sa=i&url=...AAAAAdAAAAABAE
Where is the reason the 450R "pulls like an airplane" while the LS3/480 doesn't have enough torque for marine use?
The Mercury 450R has 450 hp on the propeller shaft, so it's very comparable in power to the LS3/480, but it has only 439 LBFT of torque or less and it has a 1.6 gear ratio.
The LS3/480 has equal or greater torque from 3,000 rpm to 6,000 rpm.
https://www.google.com/url?sa=i&url=...AAAAAdAAAAABAE
Where is the reason the 450R "pulls like an airplane" while the LS3/480 doesn't have enough torque for marine use?
