Another 202
 

Hiya,
I'm out in the KC area, I came across a 202, and couldn't pass it up... I was told it had a bad motor, but they had another one... I haven't gone over it.. but it had a SBC in it, the OMC cobra drive is marked 4.3. So I assume they just slapped a 350 in there and didn't do anything else

As soon as I figure it out I'll post pics..

202
 

Gear ratio is just different,you can compansate by changing props.JOHN

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That is awsome .

Welcome zerotact
I really enjoy my little stinger, what a blast!
quite the head turner also!
JR

ZEROTACT - welcome ........ im also looking at a 202 and and a 222 here in Mich and came here trying to get some answers to my question's on both models but no one seems to want to talk to anybody with a girls name and whats the deal guys ?

Well,
I took the motor apart that I was given, and it's more usefull as an anchor. 2 bolt main and cast crank. A quick stop to a family member's machine shop and a few questions... Basically, I can get a Dart aftermarket block at a cost low enough to make me concider it Vs. getting a 400 block and propperly prepping it.

So, maybe a 406 or a 427... But not sure what intake and cam to use. Whats too big? and at what point to I need to seriously concider putting stronger gears into the upper gearbox?

Hrmm... all the parts hanging off the back of my boat were marked cobra, and my exhaust was stamped OMC..
So I am pretty sure I have an OMC cobra drive..

202
 

That's right I forgot you got a cobra drive .Some one else was asking about putting some power in front of a alpha.SORRY!! John

Hey zerotact
your drive is good for 350 hp, but the torque you are talking of putting through that drive it wont last long not long at all!

Hrmm.... So I think I have seen hardened gears for these drives.. Can I beef this drive up at all? Or should I just not build as much motor?

Hey Zerotact
What are you going to do with the boat?
Are you going to race it or use it for pleasure, or both?
I have a 8.1 Volvo in my boat and its alot of engine for a pleasure boat, I would suggest a mild small block, keep the cost down and have a blast with the boat, and it will be plenty fast, but if you want to be the Big underdog and have some bragging fun, through money at it!
I had my engine from a wreaked boat so i thought what the hell lets try it out, and its fast! maybe stupid fast!
JR

I agree its totally overboard... Basically after looking at parts, it really wasn't going to cost me more than a few hundred dollars more to build a 427 over something smaller.. the plan was to start with all new. So I figured if the outdrive would hold up... Why not?

Then I say, go for it! Build the big block 427 is a awesome displacement, use the drive and beef it up, just beware the torque of the big block will find the drives weakest part.

If I dont end up liking the little 202, i will pull my big block and go to the next project boat!

SO FAR THOUGH, I LOVE THE LITTLE ROCKET!
GOOD LUCK!!!!!:coolcowboy:

Uh... I wasn't gonnna put a big block in it...
Dart sells a block with a 4.125 bore and 350 mains... That combined with a 4" crank results in a 427 cu in small block chevy.

But was curious about what all I can do to make the outdrive hold up better.. Obviously nailing this thing right out of the hole isn't going to yield good results.

I'd rather find a used clean 4 bolt main with forged internals But I get tired of buying used stuff only to find it's bad.

OK, I see
Well, I think the boat is great with 300 to 400 hp and your drive will take that , again its all in what you are using the boat for, from what you are saying, you should stay in the HP range of your drive.
From my experiance when you start beefing up drives and putting to much HP behind something thats not designed for that type of HP you just take alot of the life out of the equipment and reliability and there is nothing worse than having this beautiful boat and the drive is blown out and you are not able to use it.
Now if your racing, and beefing things up or know that theres a possibiliy of breaking parts, thats another thing, thats racing!
So build it for what you are going to use it for and to your budget, is my suggestion. :coolcowboy:
John Russell

All depends on what you want to do with the boat.

You will NEVER EVER get the money out of it that you put into it. PERIOD. So get that fact out of the way.

Now you're able to do something!

Go with the Dart block and build it as BIG as you can afford to do. Use lots of aluminum (heads, water pump, intake, etc.) and you'll keep weight close to the 4.3L (a small block Chevy minus two cylinders). This is a major advantage!

For the drive... there are kits out there to adapt the Volvo drive (and all its superiority) to a King Cobra. Maybe there's something there for doing it to the smaller drive? I don't know jack about the OMC lineup (Merc guy here), but I can say with the strong assurance that the Alpha WILL handle more that 500 HP. It's just a matter of using it properly. Maybe the same is true of the Cobra?

Anyway... enjoy your new treasure and keep us updated on the build!

TZ

Yea,
This will be a fun project, an afternoon drinking beer on my dock and I realized my cove is a ton more narrow since everyone put thier boats in. This means I will need to make sure what camshaft I install will smoothly idle at low RPMS, because I don't want to look rediculous while mooring the boat in..

202
 

Zero!! We have our stinger for a while and Believe me A good warmed over 350,383,400 small block is all it needs,Get it to put out about 375,400 hp and it's all you really want.The boats are super touchy at high speeds and from the way they land when you hit a wake,has to do with the amount of surface area in the stern(they are wide)they hit hard.With a big block you got a lot of extra weight.We have already cracked rear engine stringers two times.And with a small block the alpha handles the power fine and so will the omc.I agree their is nothing like a lot of cubic inches but,with the weight to horspower ratio with a small block you are better off.If you must go big build a 427 small block,still cost you less the a big one and be faster.Just my 2 cents,we have been learning the pro's and con's of these neet little boats. Be safe JOHN SR

Hey Zero

Well did some more testing with the little 202 and determined the hull has to be extended for good high speed support, so i will be adding to the hull bottom extending the hull surface aft to the sheer, removing the sand definatly helps with the center of gravity but allows the boat to settle down in the water differently aft when coming off plane and allows water to splash on the stern of the boat even more than it does with out the sand, and with a big block it even worse, so just sharing my experiances of what I have found with my 202.
JR

Well, I was able to trade off my 2 bolt main shortblock for a 4 bolt main bare block... If it checks out then I can cut some cost out of my budget and I will just build a tried and trued 350. Forged crank, H beam rods, and forged pistons. But I have having trouble deciding on a camshaft... It seems the only performance camshaft I can find that appears to really be marine specific, is from comp cams... been Eyeing the XM262H

The XM262 is a great off-the-shelf cam for a mild build. If you're building something with better heads, etc., then I would consider contacting RMBuilder on this site for a custom roller. Exhaust is the key (reversion).

Tom

So, the XM262H works great? with no reversion?
I'm in a tight cove so I need something that idles well mooring the boat in a tight cove, with a radical cam doesn't sound fun.

So I wait to hear back about if the block checks out and look for a forged crank.

http://a2.sphotos.ak.fbcdn.net/hphot..._4999497_n.jpg

I've named her " Straight up and dirty "

Sorry,
I got caught up with an awefull job that basically took all my time...

So far I've ordered a new 4340 crank, 4340 rods, and ordered the XM262H cam.

Since dealing with used heads is a royal pain, I am looking into a set of aftermarket heads.

http://a7.sphotos.ak.fbcdn.net/hphot..._4155535_n.jpg

http://a4.sphotos.ak.fbcdn.net/hphot..._1098430_n.jpg

nice 202! do you still have the seats out of your boat? I need a picture of the bottom off the seats what supports the seats, from falling in the "box" my interior is toast and its difficult to find build pics of the seats. Thanks any help is great!!!

Good looking stinger for sure.. Boat should run well, once you get it dialed in... Keep us posted on that beautiful boat..
We opt to do a forged 355, stuff it with boost :drink:

John jr