Anyone run 108 LSA cams in boat before? 700 HP DYNO proven combos welcome...
08-31-2016, 02:58 PM
#1
Gold Member
Gold MemberThread Starter
iTrader: (5)
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,634
Likes: 0
Received 204 Likes
on
132 Posts
Anyone run 108 LSA cams in boat before? 700 HP DYNO proven combos welcome...
Looking at a cam change since my Bob Combo sucked... gonna maximize my parts if I do, has anyone ever ran 108 lsa cams? I have stainless marine exhaust dry to the transom, so nice slope with at least 2ft no water mix.. I don't see reversion happening, what have people done?
Any 540 with afr 325 PROVEN 700 hp combos? dyno sheet and specs top to bottom if so... I need to decide what I want to do this winter....not happy with results after 2 seasons of MK combo..
Any 540 with afr 325 PROVEN 700 hp combos? dyno sheet and specs top to bottom if so... I need to decide what I want to do this winter....not happy with results after 2 seasons of MK combo..
08-31-2016, 03:10 PM
#2
Charter Member # 55
Charter Member
I see no reason to do that and risk reversion. You would prob need to have full dry exhaust.
Idle will suck and a cam around a 112 will have a flatter torque curve.
Idle will suck and a cam around a 112 will have a flatter torque curve.
08-31-2016, 03:12 PM
#3
Registered
iTrader: (1)
+118hp no other changes
08-31-2016, 03:19 PM
#4
Registered
iTrader: (3)
Offshorexcursion has 108 LSA cams in his NA 572s. They idle very well, made great power too. 750-760hp at 6000 in full marine trim, great torque curve, etc.
Tim, modding the tails to full dry, would be easy. I personally would rather cam the engine for what it needs, rather than work around wet pipes.
I personally think the "lsa " subject in the marine world, is the most misunderstood area of cam discussions.
Bigger engines can tolerate and tame overlap much better than small engines idle wise. Ive been around a few big ci big blocks, that idled great woth tight lsa's. I have also seen them blamed , when in fact it was a poor carb setup, or poor ignition setup, causing a rough dirty idle, when the builder simply blamed the cams LSA.
Tim, modding the tails to full dry, would be easy. I personally would rather cam the engine for what it needs, rather than work around wet pipes.
I personally think the "lsa " subject in the marine world, is the most misunderstood area of cam discussions.
Bigger engines can tolerate and tame overlap much better than small engines idle wise. Ive been around a few big ci big blocks, that idled great woth tight lsa's. I have also seen them blamed , when in fact it was a poor carb setup, or poor ignition setup, causing a rough dirty idle, when the builder simply blamed the cams LSA.
08-31-2016, 03:23 PM
#5
Gold Member
Gold MemberThread Starter
iTrader: (5)
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,634
Likes: 0
Received 204 Likes
on
132 Posts
not saying that I will not change other things, but I want to see what it REALLY takes to get 700 HP or very close, my combo was supposed to be that, very far off... I have 2 buddys making 620 hp with 509's!!!
not looking for pizzing match, just solid info and PROVEN results..
not looking for pizzing match, just solid info and PROVEN results..
08-31-2016, 04:26 PM
#6
Registered
iTrader: (1)
No pizzing match. Thought I'd add a joke to show it can be a light conversation, thus the emotican.Anyway, it was for a giggle / laugh for not just me.
I cannot addmuch to this thread, because I have not done so on a marine engine. We have to be fully wet here with mufflers.
In the other engine world (dry land) I have run cams with LSA from 102 up to 116. So, I have seen some trends, but again, not on the water.
I cannot addmuch to this thread, because I have not done so on a marine engine. We have to be fully wet here with mufflers.
In the other engine world (dry land) I have run cams with LSA from 102 up to 116. So, I have seen some trends, but again, not on the water.
08-31-2016, 04:36 PM
#7
Gold Member
Gold MemberThread Starter
iTrader: (5)
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,634
Likes: 0
Received 204 Likes
on
132 Posts
All good, just making sure everyone knows this is a serious thread ... for now lol
hope to get some answers on things to consider, basically do more then trust ONE person, gather info and call a few grinders, see what they say..
hope to get some answers on things to consider, basically do more then trust ONE person, gather info and call a few grinders, see what they say..
No pizzing match. Thought I'd add a joke to show it can be a light conversation, thus the emotican.Anyway, it was for a giggle / laugh for not just me.
I cannot addmuch to this thread, because I have not done so on a marine engine. We have to be fully wet here with mufflers.
In the other engine world (dry land) I have run cams with LSA from 102 up to 116. So, I have seen some trends, but again, not on the water.
I cannot addmuch to this thread, because I have not done so on a marine engine. We have to be fully wet here with mufflers.
In the other engine world (dry land) I have run cams with LSA from 102 up to 116. So, I have seen some trends, but again, not on the water.
