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Flatwaterfooter
01-22-2012, 10:38 PM
Opinions good bad and ugly. I am in the market for a new/used boat what is your opinion in this engine.

willyt
01-23-2012, 09:13 AM
'open can of worms'.

It will depend a lot on what type of boat you're taking about. RTP in a star? (I hear they exist). No way. RTP in an X1? Maybe.

JRW160
01-23-2012, 10:16 AM
A lot depends on what you want to do with it. I have the rtp in my 2003 x-2 (same as new x1), and the rtp is more than enough with the right prop. Last season I was running somewhere between 2500 and 3000lbs of ballast plus 4 or 5 people. With the stock 14x20 prop, it took 30s+ to plane out. I switched to a 14.25x14.5 and it jumps out of the hole and planes out with no trouble. Top end is somewhere around 40mph I think. I never have any reason to go that fast.

From what I can remember, the torque curves on the rtp and mcx are very similar.

kskonn
01-23-2012, 10:50 AM
I have the RTP in my 2011 X2, great engine for that boat, I run about 2400lbs of ballast and anywhere from 5-7 people. I have an Acme 1285 prop, gets out of the hole and on plane very quickly. Could not see that being a good engine for a boat much larger than the X2 though.

Ski-me
01-23-2012, 11:36 AM
If you do intend on selling later on, the RTP will pull down that value a bit. It will also deter some buyers....aka, longer and harder to sell.

Depending on size of boat, I have heard some people comment the RTP is just fine.

For me personally, I wouldn't consider the RTP engine in my next boat and that would most likely be the 214 or 214v. I would much prefer the larger engine, especially at our elevation. That's just me though.....

X-1Texas
01-23-2012, 11:44 AM
I have a 2007 X-1 with an RTP and Acme 1479 prop and couldn't be happier. Great out of the hole and about 43 mph. I rarely ever go over 30, unless slalom skiing. Don't really understand why people drive around the lake 40+.

I've been told that the HP ratings are a bit under-rated for the RTP and a bit over-rated for the MCX. Marketing. Torque is what's important anyway.

kskonn
01-23-2012, 11:47 AM
I have a 2007 X-1 with an RTP and Acme 1479 prop and couldn't be happier. Great out of the hole and about 43 mph. I rarely ever go over 30, unless slalom skiing. Don't really understand why people drive around the lake 40+.

I've been told that the HP ratings are a bit under-rated for the RTP and a bit over-rated for the MCX. Marketing. Torque is what's important anyway.

The service team at Texas Ski Ranch told me that the RTP and the MCX where very close in HP, I had the MCX in my 03 X30 and it did a great job, but I have more hole shot with my X2.

jakethebt
01-23-2012, 06:43 PM
So it seems that most issues are with the ballast boats... what about in a 190 or 197?

zamboniman
01-23-2012, 07:17 PM
RTP is fine in an X2. Not sure of what prop I'm spinning but it's a rocket out of the hole.

You'll get lots of 2cents that it's a deal killer on resale... Generally it should only mean less money at resale or slightly less desirable. For a buyer it's a gem because you're going to be able to leverage a better deal.

The reality is the MCX and RTP are probably more similar than not when it comes to performance areas that count in a tow boat and derived off of the same platform (yes I know potentially different internals, mappings, etc). One is sure prettier, demands more money, and may get you a couple more in top end.

There is a lot of subjectivity and speculation as there really isn't hard info available other than marketing information which only reveals the horsepower difference which isn't much. You'd be hard pressed to find exactly equipped boats propped identically with the different engines to compare side by side. Like has been stated supposedly there was info at one time that showed the torque curves to be very similar so if that's true there probably isn't much difference at all on out of the hole and general use performance.

On RTP equipped boats you're generally comparing up against the MCX.. which despite it's huge following I'm siding with they are more similar than not. Not like you're comparing the 5.7 to the 6.2 or more.. You're comparing the same block with different tuning.

MIskier
01-23-2012, 07:30 PM
So it seems that most issues are with the ballast boats... what about in a 190 or 197?

The RTP in those boats is more than adequate for most people, other than those that foot or jump.

bailey78
01-23-2012, 07:30 PM
Sorry for being stupid! But what the heck is RTP?

Footin
01-23-2012, 07:47 PM
The RTP in those boats is more than adequate for most people, other than those that foot or jump.

I footed behind a 209 with an RTP, the boat had 5 or 6 people in it at the time. It was not a bullet out of the hole; however it got my 200 pound butt up longline.

If the deal was right, I would not hesitate to get the RTP in a 197/209/X2.

JRW160
01-23-2012, 08:40 PM
Sorry for being stupid! But what the heck is RTP?

The base engine from 2003(?)-present. Could have started in 2002

JohnE
01-23-2012, 10:25 PM
Sorry for being stupid! But what the heck is RTP?

The lowest hp engine from 2011 back till 05 or so

JohnE
01-23-2012, 10:31 PM
So it seems that most issues are with the ballast boats... what about in a 190 or 197?

A serious slalom skier will not be as happy with an rtp vx mcx. The mcx will give you a quicker set up. Mcx is quicker out of the hole than ly6 as well which is again preferable for slalom. Ly6 would be preferable for footing. If you are comparing dd boats, don't neglect to consider gear reduction in the equation. The v drives of late anyway all have gear reduction

Ski-me
01-24-2012, 10:25 AM
A serious slalom skier will not be as happy with an rtp vx mcx. The mcx will give you a quicker set up. Mcx is quicker out of the hole than ly6 as well which is again preferable for slalom. Ly6 would be preferable for footing. If you are comparing dd boats, don't neglect to consider gear reduction in the equation. The v drives of late anyway all have gear reduction

That's interesting. I would have thought the LY6 (6.0L) was quicker out of the hole and have a higher top speed compared with the MCX (5.7L).

hos505
01-24-2012, 06:50 PM
My 03 197 with the RTP & powerslot tranny works pretty well.

kyfooter
01-26-2012, 06:45 PM
Mine too...and I foot a lot.

JohnE
01-26-2012, 09:48 PM
That's interesting. I would have thought the LY6 (6.0L) was quicker out of the hole and have a higher top speed compared with the MCX (5.7L).

I thought that too until I drove a few. When I demo'd the 214V at fanfare a while back the boat was a dog out of the hole compared to my X14DD. I thought it was because of the V vs DD, but was told that it was due to the LY6 and the power curve.

Ski-me
01-27-2012, 09:51 AM
I thought that too until I drove a few. When I demo'd the 214V at fanfare a while back the boat was a dog out of the hole compared to my X14DD. I thought it was because of the V vs DD, but was told that it was due to the LY6 and the power curve.

From your test drive, I assume you still prefer your X14 over the 214V? Especially for skiing?

I like the 197 but really love the room of the 214DD. I've heard the ski wakes are similar to one another.

wheelerd
01-28-2012, 02:35 AM
This link from Wakeworld confirms the posts above.
http://www.wakeworld.com/MB/Discus/messages/65921/630478.html?1222703930
The MCX is pretty, no doubt, but bottom end grunt is the same as the RTP. I used to have the comparative charts of the torque/hp curves but can't find them at the moment.

bturner2
01-28-2012, 08:16 AM
Doesn't matter what the dyno sheets say, you can just feel the difference......

:rolleyes::rolleyes::rolleyes:

hbomb
02-09-2012, 10:56 PM
if I am wrong please correct me but the RTP is carby against MCX injected........
personal opinion only but one would think that injected would be less troublesome than a carby and that does not broach the subject of resale down the track either...
in our area, injected is the preferred option with carby engines really not featuring.......

wheelerd
02-09-2012, 11:15 PM
Actually, MC introduced the first fuel injected ski boat back in 1993, prior to the later RTP Indmar Chevy 5.7L. The LT1 was multiport and the Vortec was throttle body injection.