engine information & comparison

I searched & can't seem to find torque specs on the indmar 340hp engine & the 8.1L 450hp engine.

Are there really that many problems with the 8.1? I have heard some horror stories. Does it burn that much more gas than the 340?
Is it worth the extra money?

gene, i don't think it is worth the money but the horror stories are limited the 450 is a great engine

p.s. how about them cardinals "orange bowl champs", beating 8 bowl teams on their way
oh yeah the big east is 4-0 in bowls and won the confrence bowl challenge

(Message edited by supra24ssv on January 06, 2007)

Thanks man.

First off Congrats. I have to admit they are better than I thought they were, but big money in bowl games makes for some really bad & lopsided matchups. I mean Rutgers and the (7-6)Kansas State? South Fla. & East Carolina (7-6)? They should match up against some real teams.... not bottom feeders. Listen to this commentary:
http://espn-mp3-od.andomedia.com/espnpod2/espnradio/insider/herd/herd_01032007_7.mp3

Don't get me wrong Louisville probably deserves to be top 10 in the nation but they couldn't beat Auburn, Arkansas, LSU, or almost any team in the top 10 right now.
But you know what really sucks..... We will never know! Because they don't play anybody really good. The toughest bowl matchup in all the Big East was #15 Wake Forest!
Does Louisville deserve to be ranked #5 or #6? Could they beat an LSU team that played 5 top ten teams this year? I doubt it. What sucks for them is that they will probably even loose a spot in the rankings even though they won their game because USC are such friggin media babies and Wisconsin(who Louisville should have played) looks pretty strong in the standings.
By the way the SEC has 9 teams in bowl games (more than any other). Which I think is a more accurate prediction of the toughness of a conference.

sorry gene but I think the SEC is not that great I think like many on espn that louisville should have been in Floridas spot, i wish we would have played ohio state but we were offside on a field goal so florida got in
big east 8 teams (6 bowl eligible) 5 bowls 4-0 as of now, prob 5-0
sec 12 teams 9 bowls 5-3 as of now prob 5-4
ps next week we will be 2 or 3 in final standings but maybe the experts are wrong

are you buying a new boat

(Message edited by supra24ssv on January 06, 2007)

(Message edited by supra24ssv on January 06, 2007)

(Message edited by supra24ssv on January 06, 2007)

Gene, most inboard powerplants achieve max. torque around 3500rpm. Specs for Indmar motors supplied to Skier's Choice at this "target" rpm:
325MPI = 350 ft#
340MPI = 380 ft#
8.1MPI = 510 ft#
Both the 340 and 8.1 have a 90A alternator where the 325 is a 70A. All utilize Delphi MEFI-5 ECM. 325 exhaust manifolds are 2-piece cast iorn, 340 are "ETX" single-piece aluminum, 8.1 are 2-piece aluminum. All have vortex heads I believe. 325 and 340 are HVS high-voltage switch ignitions where the 8.1 is coil-near-plug. My thought on fuel consumption is the 325 and 340 will be the same @ the same rpm and the 8.1 will of course burn more. However at the same speed/weight, the 8.1 will be working less hard at lower rpm and should have a similar fuel burn/hour. The 8.1 is a bit notorius for using oil, particularly during break-in. The 8.1 is an absolute torque monster. It is a pricy upgrade and best left to the individual buyer as to the cost/benefit to upgrade. You might e-mail Indmar and see if they have any fuel burn data they can share. For SC motors in '07, the 340 is now equipped with catalytic converters integrated into each exhaust manifold, reducing CO emissions without loss of power. CARB does not currently monitor CO, but the 325 and 8.1 are 3-star CARB and the 340 is 4-star CARB. I'm not associated with Indmar, but am an SC dealer. Hope this helps out some.

My 8.1 guzzles gas. But the torque, sound, and reliability are fantastic. I have a big boat, carry lots of ballast, people, etc., so NO other engine would suit my needs.

Rick Thanks that is exactly what I was looking for! 510ft#'s! wow! Is that number right? Why don't they list those numbers? I was just looking for torque #'s & to see if their were more engine failures with the 8.1. Just oil consumption huh? I need to go ride behind one weighted out. I am curious how much more gas it burns per hour?

Supra 24..... SEC not that great? Louisville 2 or 3? You really think a close loss to Rutgers is the reason yall are not playing for the national title? Did you listen to the media clip I posted? Man you are totally focused on the wrong stats my friend.
(Fun Stat)Georgia, who did not even have a winning record in the SEC beat Virginia Tech who is ranked higher than Wake Forest!
I will make a wager with you that they don't move up more than one spot to #5 in the BCS if at all.
$100

(Message edited by Gene3x on January 06, 2007)

100% we would be in National Championship do you ever watch espn or even keep up w/ college football}
your wager is a joke

What makes it a joke? So you will take the bet? We are on for $100? Louisville has to be #4 or higher.

I mean Virginia Tech is Louisville's only legit Big game win and they just got booted by #7 in the SEC!

I have an 8.1 and I love it. Beefy engine, but it's nice to have the juice there when you need it. I don't think it's bad on the gas mileage, but I do mostly low speed driving and I've got a low end prop. It does eat oil, but I'm not in the habit of checking it every few times I hit the water. Plus, it matches my truck engine!

Supra24- Your not taking the bet after calling it a joke??? What, is it a joke because it is not enough money? How about $500? Or are you startign to realize I am right?......
I thought so.

Thanks David, with my luck it would burn up due to low oil! I have the 340 now and am looking at making a change.

BIG EAST 5-0
trust me your money is a joke for me

Oh my money specifically? Are you really that pompus? Your knowledge of college football is the joke. Be a man and name a price that is not a joke, tough guy. Or should we just whip it out and get it overwith?

Dave did wakeworld get a new boat or do you still have the Vlx? I know from the factory you can only get up to the 383HH in the vlx which is the 6.2l. If you have the 8.1 how did you pull that off? I would kill for the 8.1 in the 21.5, it would make a great boat perfect to me.

I was thinking the same thing, I didn't think the 8.1 was available until the LSV

Rick - your info is outstanding

I have heard that the 383HH is not worth the additional money because the torque doesn't increase that much in the powerband. The torque is all that matters in getting a loaded out boat out of the water. I am still on the fence about the 8.1. I am leaning towards going back to the 340. Yea, thanks again Rick. Where did you get those numbers? I am guessing they are not available for public consumption?

"the 340 is now equipped with catalytic converters integrated into each exhaust manifold, reducing CO emissions without loss of power"


I have no personal ecperance the the catalytic converts on Malibu or any other boat. However I have read that they have a lose of accleration and failed the AWSA boat tests.

http://eclipse.nicholls.edu/cgi-bin/BBS/webbbs_config.pl?frames;read=25621

http://eclipse.nicholls.edu/cgi-bin/BBS/webbbs_config.pl?frames;read=25625

http://eclipse.nicholls.edu/cgi-bin/BBS/webbbs_config.pl?frames;read=23358

I have the 8.1 in the truck and it is notorious for it's usage of oil. They state 1 quart for every 100 gallons of gas is normal. That being said, if you know that going in you'll be all set.

You can check out this pdf from GM about their base offering of the 8100.

http://www.gm.com/automotive/gmpowertrain/engines/specialized/marine/2006_8100_marine.pdf

Have you considered the new LY6 that Indmar is producing this year. Still not as much torq as the 8.1, but pretty close!

This is a great topic being that I am currently in the market for a new boat. I currently have an 05 VLX with the 340 monsoon and its just not enough. It takes way too long to plane with 5 people, 1250 stock and the wedge down. My biggest problem is my altitude level at which I ride, its utah and about 6000 feet. Do you think the hammerhead will provide me with enough power to plane out quicker? If not I would assume i'd be forced to go with the 23 lsv to get the 8.1 or is it possible to put that engine in the vlx?

Brett if you want an 8.1 you have to step up to the 23 and larger boats. The best thing I can tell you is to reprop to the acme 1235. We did this in our 05 and it made a huge difference. The performance out the hole is much better and also running rpms at wakeboard speed were reduced. The loss of the top end was there but for our purposes the benefits out weigh the top speed loss. The fastest our boat ever ran was 45.4 with 2 people and running on fumes, with normal load the fastest we ever saw was 43.6, and with the 1235 with normal load and full tank of gas it ran 41.9. This was all checked with a gps and also the before prop was the Acme 537.

I have never been in a boat with the Hammerhead but hear from a few people they don't provide much more power at all than the 340. Everyone I have ever talked to says to make the jump to the 8.1L if the 340 is not enough.

The HH is good for power in the mid to uppper rpm band. There is a little difference out of the whole but the most notable is at about 3500rpms and up. If you are cruising at that rpm and nail it in a boat with the monsoon it will still accelerate but in a HH equipped boat it will put you back in your seat.

One example of HH v. Monsoon: a couple of people I go to the lake with have 23lsv. One was an 04 with the older HH and the other an 05 with a Monsoon. With the old style HH the Monsoon would take it out of the hole but the HH would run away at midrange to top end. With the new 383 the holeshot is about the same but the nod goes the the HH and the mid range is the same storyit will run away from a monsoon. Now the guy with the 04 has an 06 with the 8.1 and none of our boats can touch it period from start to finish.

In my opinion the 8.1 is the best motor available for the 23 and up boats but the Monsoon will do the job if you re-prop and topend is not a factor.

(Message edited by cbrown on January 08, 2007)

The torque numbers I posted were provided to SC dealers by Indmar. As far as "no loss of power" with the cat converters on the 340MPi, that's from Indmar also.

Supra for me, I will be PMing the address where you can mail my check.

well, Soupbra sure got quiet! Love the profile pic

Thanks man.

big east still 5-0 in bowls and that speaks for itself


(Message edited by supra24ssv on January 10, 2007)

Yea it says the big east played a bunch of creampuff teams.
I am curious why my money was no good with you? Is it is because you knew I was right but to proud to admit it? Or you just got scared of looking like an idiot because you had no rebuttal?

gene, where did you attend school, you bash the big east so it must not have been there

LSU ...... gonna try to find something to bash on? Yes they are a far superior football team than Louisville.

i remember when our now former coach turned down the lsu job after saban left, nothing wrong with lsu but they are not superior in any way

your now FORMER COACH. says a lot about his judgement.

Where is Saban now?

the SEC

and didn't we win the sugar bowl (national title) a few years ago?

(Message edited by denverd1 on January 10, 2007)

saban, is where the money is, he would go to indonesia for $10 more a year
yes nacho lsu did when it A FEW YEARS AGO,

supra, you have the worst arguments of anybody I have ever gone at it with about college football. And acually LSU is far superior in many ways. If we are just keeping it on a sports related argument they have been number one in total sports along with UCLA more than any other university in America. Winning more national championships in all different NCAA sports than any other university.

www.geauxtohellsaban.com

check out the pics section

(Message edited by bob_l on January 10, 2007)

That is classic Bob! I haven't seen that yet. I love the Saban Pics tab!

gene, your arguments are so good, the sec is the one and only why should their even be any other confrences aloud in the bcs,
ps i don't care what you say, I went to U of L and I prob make more money than you and your LSU degree, if you made it through, let me guess a pyschology degree or sports management, or did you even get through such a tough school
you are so smart and your $100 bet just scared me off, I may have to sell my 100,000 hummer to pay you

(Message edited by supra24ssv on January 10, 2007)

Thank you. I thought they were prtty good. I knew at some point we were gonna have to whip it out and talk about how much money we made or how long it it is in order to compensate for our lack of self esteem.
But just for good measure, I got a Zoology degree and was accepted to LSU med school. Let me guess you couldn't get into med school so you did the next best thing and went to be a dentist?

Oh and I did tell you to name your price on the bet after you ingnored my $1000 offer. Hell I would have bet your precious little hummer I was right. But your self esteem surely would not have lived up to the scrutiny after I won that one.

This is hilarious. I love pissing contests.

You guys need another cold one...

It is definately entertaining isn't it? I would stop being such a hard ass and drop it if he would put up one decent argument besides the Big East winning 5 bowl games which everyone knows were a batch of creampuffs.

One last thing..... I think it is hilarious that you are trying to call me out on my education when you edit your post on the amount your hummer costs but not the egregious spelling errors and lack of punctuation in your post.
"confrences aloud" I mean come on dude. You shoot yourself in the foot everytime you try to make a post.

What a bunch of meat heads in here. Lets talk about something we all DO, like wakeboarding... unlike D1 college football that i would guess neither of you actually play(ed), and if you did, probably sucked. With wakeboarding, you probably suck too, but you can always go out and get better. I doubt if you go up to the coach of "Your team" (as if they know or care who you are) and ask if you can "practice with my team", I am willing to bet gene's $1000 and some of my own that 'your coach' will tell you to "pound sand" or "kick rocks" or "go piss into the wind". true story.