270 Laser Top End With Single 454 Mag?
 

WHAT will a 270 laser with a single 454 mag FFI(385HP)run top end? And what about with a 502 mag? Thanks for any info!!!!

Re: 270 Laser Top End With Single 454 Mag?
 

I've never been in one but had been looking at several and was told by a 502 owner 65mph and on the 454 mag EFI mid to upper 50's.

Re: 270 Laser Top End With Single 454 Mag?
 

Doesnt a 7-10mph differance sound like alot considering a 502 makes 30hp more than a 454mag? What is the torque differance between a 502 and 454mag?

Re: 270 Laser Top End With Single 454 Mag?
 

I would agree. You have to remember these numbers are coming from sellers trying to sell their boats. I would think the 454 Mag numbers where more in line. I ended up buying a 26 Legend about 2 weeks ago. I would have preferred the Laser due to the cockpit size. Funny thing is if you sit the two side by side you'd swear the 26 was larger. The 26 has a deeper free-board than the 27 and I believe a deeper dead rise? I was told that the 26 handled better also due to the 27 had a hook in the bottom. I don't know that to be a fact, just what I have been told. Myself I still preferred the 27 due to the size of the cockpit. I can tell you the one time out on my 26 we saw 61 mph and I was told on a perfect day 63, which seems to be in line with what others have said. I'm assuming your in the market?? If so which one are you looking at? I think I've seen the bulk of them.

Re: 270 Laser Top End With Single 454 Mag?
 

How much did your 260 cost you? What yeAR IS IT?

Re: 270 Laser Top End With Single 454 Mag?
 

We bought a 1997 with a 454 mag EFI pretty much loaded and with a lot of extra options never offered by Powerquest. Just happened to be one of Powerquest general mangers boats, so they did a lot of extra stuff. It's got 350 hours with a bravo 1 on a trailer in beautiful condition over-all. As far as price I'll only say we got one heck of a deal. From what I've seen out there if you can find say a 97 or newer from under 30 you did good, pending the hours. depending what you want, there has been a 27 being offered on Boat Trader in Ohio for 36,900 to 39,900. I say that due to they have been offering it at both prices. I talked with the dealer and according to them its mint with only a 125 hrs. At 36,900 or less seems like a pretty good value.

Re: 270 Laser Top End With Single 454 Mag?
 

My 99 270 stock 454 Mag runs 60-62 on gps on a perfect day with a 21 four blade prop. Great boat! Lots of cockpit space.

Re: 270 Laser Top End With Single 454 Mag?
 

270Laser, How's she handle with the 4 blade? Did you make the switch from the Mirage or was it like that from the factory??

Re: 270 Laser Top End With Single 454 Mag?
 

The previous owner bought the 4 blade. I have the original Mirage 3 blade, but have never put it on the boat. He said the 4 blade was much better out of the hole and midrange. I had the prop off when I changed the gear oil. I was going to switch them just to see but I didn't. The boat sits on a lift behind my house so I can't switch props easily. They are both 21p.

Re: 270 Laser Top End With Single 454 Mag?
 

Just curious. My last PQ I went to a 4 blade and it handled very poor.Out of the hole was incredible but everything was poor. It would be worth a swap to see.

Re: 270 Laser Top End With Single 454 Mag?
 

How did it handle poor?

Re: 270 Laser Top End With Single 454 Mag?
 

She would come on plan very fast which was good, however the 4 blade gave little to much transom lift and getting the bow to stay down was a big problem. That was on a 92 Conquest so maybe the older hull design had a lot to do with it. I've been told the 27's had a hook in the bottom so maybe the 4 blade works for your application. My 26 came with a Mirage plus as well as the new 2006 model has the same. I can only assume PQ has tried the 4 and it didn't perform well. Than again it could have been the extra $$$ to. Still would be curious to see the difference's in performance and handling. When I was messing around with props 2 years ago I went through 5 till I hit the right one. It's amazing to see what minute changes is pitch, dia and blade thickness can yield.

Re: 270 Laser Top End With Single 454 Mag?
 

HOTTZU98 & 270Laser,

I have a 95 270 Laser with a Single 454 Mag EFI 21p Mirage 3 blade with estimated 400 hrs. I installed an meter when I bought it and have put 220 hrs and estimate previous owner had 200 or less.

Here are the numbers I've seen on GPS. With 2 -5 People & full tank gas 100 gals. l I usually run pretty topped up on gas.
On glass water with full up trim Top Speed with wind at back with current 58.7 @ 4800rpm. Realistically, most of the time in 1-2 waves 53 -56 mph, 1/4 - 1/2 trim & tabs down slightly.

My friend has a 93 270 with the 502 Mag carb with at least 500 hrs and ssays he see's 60-62 mph.

I did experiment with a few different props a couple of years ago without any luck. With a Mirage Plus 21p could not hit top rpm and slow speed. Bravo1 4B 22p - A lot better throttle response and midrange up 3-5 mph , the bad part I think it had to much stern lift because when I would be at Top Speed and than pull throttle back to neutral fast, the rear of the boat would twitch which felt unsafe. I also tried a Rev4 21p with about the same results.

270Laser,

What manufacturer's prop and pitch are you using? Any lab work? Also, I believe I have read that boats run a couple of mph faster in salt water because of more buoyancy and less drag or something like that. Thanks for your help.

Re: 270 Laser Top End With Single 454 Mag?
 

The prop doesn't look like any work was done to it. It a Revolution 4 21p. I can go over 60mph on calm water 1 ft or less trimmed light. High 50's in rougher water. 62 was the fastest 60 is not a problem by myself or one other person with less than half tank of gas. Tac runs over 5000 rpm close to 5100. I have gone up the river where it is mostly fresh water and run over 60mph. My fastest run was on the ocean. So I'm not sure on the salt water making a hole lot of difference or the fact that you don't run out of room. :rolleyes: The boat drive real nice. My 5 year old can drive it cutting in and out of crab nets at 45mph. It rides smoother at 3/4 to full throttle than at slower speeds. The chimes slap at slow speeds if it's real rough. I haven't had any handling problems. It does handle better trimmed down. I drove a 280 Silencer 454 mag with a 3 blade we were going about 63-65 speedo and it was hard to keep the boat going straight? Very loose feeling in the steering wheel. We went under a bridge at full throttle and I felt uneasy. The 270 handles like a knife in the water.The 280 was a bear to get out of the hole. He said he had to use the tabs. I think he had a 22 or 23 so that was most likely the problem? I'm guessing the 280 is a much better boat with the upgraded steering. Other than that it road nice and stable at slower speeds. I'm sure the 280 will have a better top end with the stepped hull. Both boats were the same year and price. I just liked the look of the laser better and it was in much better shape. As far as the prop I'll try the 3 blade and see. The previous owner liked the 4 blade better.

Re: 270 Laser Top End With Single 454 Mag?
 

Speed Demon sonds like he had the same results as I did with the Bravo 1 4 Blade. I believe that the Revolution has a smaller diameter so maybey thats cutting down on the lift?

Re: 270 Laser Top End With Single 454 Mag?
 

If they are the same pitch which prop would be faster the 4 or 3 blade?

Re: 270 Laser Top End With Single 454 Mag?
 

I believe the 3 blade will run a little faster 2-3mph. Not much but you'll spin more R's out of the 3 blade. Most people switch for the ride/low and mid range. Of course each hull is different , thus is why you still see a lot of new boats with the 3 blades. I think the bulk of the 4 blades are on the larger heavier boats. If all goes well in the next 3-4 years we'll move into a 30' plus.

Re: 270 Laser Top End With Single 454 Mag?
 

Now you got me curious and wanting to see the difference with my three blade!

Re: 270 Laser Top End With Single 454 Mag?
 

If you've never tried and you have one, it would be worth a try.

Re: 270 Laser Top End With Single 454 Mag?
 

new to the forum but I have a 96 270 laser with built 454 pushing 514hp max flywheel hp and 510tq max flywheel tq. I have the dyno plots and pics. Running Hydromotive 4blade prop Second year running the engine got to get GPS and check speed. Who wants to race lol.

http://www.customtints.com/454/done2.JPG

www.customtints.com/454/done1.JPG

I think i posted specs before on here when the engine was first built, JE 9.6:1 compression, blue printed and balanced, roller rocker setup with hydrolic cam, dart ported and polished heads, dart hi riser intake manifold, Custom headers from CMI. Its at the point were If it was any faster, the 270 wouldn't be able to keep it under control. Next year im thinking of modding the drive I was told moving it up a tad will gain hp and make it more stable. For right now I just adjust the tabs or else its major chine walk.

Re: 270 Laser Top End With Single 454 Mag?
 

pkspx,
what pitch are you running and what speed does it start to get scary? Speedo?

Re: 270 Laser Top End With Single 454 Mag?
 

Hydromotive 22pitch Prop. I still need a GPS to see what im running at. A Supercharged Seadoo, which runs about 70mph GPS, on plan was not able to keep up with me for long. I was able to pull away from him a decent amount. The guy tried 3 more times, different days. I also raced a Bored out single 454 25foot Baja, Guys, It wasn't even fair. I got on plan pretty quick and noticed I was pulling pretty good. Backed off the throttle to about 4500RPM and i was still pulling. The guys response was, "I've got nothing".he-he.

My way back to the marina I raced a twin engine Fountain that came from no where. Got side by side with him for awhile and then he started walking me slowly. I was shocked I stayed with him for awhile till he started gaining WOW! Wish I had video camera.

Both Power Quest, engine builders and engine installer explained the boat has chine walk and at max of the hull. Trim tab indicators were installed. With the tabs level with the hull, the boat is stable, smooth and safe. Also installed Hydraulic steering. The next step this winter is to prepare to swap out the lower half of the out drive and replace with a shorter lower drive which will get the boat stable and 6-7mph top end speed.

Sorry for the long post, For the love of you 270 laser people I will make a video and host it on-line for you to download. Anyway questions I can answer at my email which is [email protected] I will post all the specs of the engine build very soon.

Re: 270 Laser Top End With Single 454 Mag?
 

pkspx,
Can't wait for the video.

I took off my Revolution 4blade 21p off and put the original Mirage Plus 21p 3blade on for the first time. What a difference. Much slower out of the hole and midrange was also slower. Top end was the same. I had a full tank( I usually don't), so I'll see if improves by the time I'm on empty.

Re: 270 Laser Top End With Single 454 Mag?
 

270 Laser,

Are you sure your prop is a Mirage "PLUS" 21p and not just a standard Mirage as used on earlier models. My 270 Laser is a 95 and came with a "Mirage 21p" not a plus. Keep us posted on your numbers with less fuel. Thanks for your input.

I am trying to track down a good deal on a Revolution 4 21p.

Re: 270 Laser Top End With Single 454 Mag?
 

It's a Mirage Plus 21p. My Laser is a 1999. I'll keep you posted. I have no trouble burning fuel. :D

I can run 60-62mph GPS with the four blade. I ran a little over 58mph GPS using the 3 blade with a little under a full tank.

Re: 270 Laser Top End With Single 454 Mag?
 

I ran the boat empty. Not much improvement with the three blade. I definatly like the four blade better. It's better out of the hole, better in the midrange and the top end is the same or even better.

Re: 270 Laser Top End With Single 454 Mag?
 

I'm assuming your running A 22 Bravo 1??How's the ride quality and handling ?? Was there a change that you could tell??

Re: 270 Laser Top End With Single 454 Mag?
 

270 Laser,

Thanks for the feedback and taking the time to experiment with your props. I purchased a Revolution 4 blade 21p off of ebay yesterday and should have it on Friday. I hope to on the water Saturday and Sunday see similar performance gains as you have found. I let you know how it works out.

PQConquest,

Previous post stated 270 Laser was using a Rev 4 21p. I hope to attend the Rally and meet you later this summer.

Re: 270 Laser Top End With Single 454 Mag?
 

I just purchases a 1999 270 Laser, which we love!!!!. I am waiting on my GPS, but the speedo is showing 66 mph on a flat sea with 1/2 tank and three people. I am interested to see what GPS says. The boat runs a Volvo system, 454 MAG with a Dual prop set-up. A lot of people don't want this set up, but I love it. I get a great hole shot, and decent top top end, with great control around the docks.

I can't wait for the rally, this is our first performance boat and we are excited to meet other powerquest faithfull!!!!.

Re: 270 Laser Top End With Single 454 Mag?
 

Hot-Hot-Hot, Did you by chance buy the Laser in Grand Haven?? I was on my way to pick up my 26 when I notice a small dealer had one with the volovo setup. I did stop and look and it was a beautiful boat!

Re: 270 Laser Top End With Single 454 Mag?
 

I have a 1997 with the 454 mag (385hp) and have the stock mirage 3 blade and was considering going 4 blade. My best speed is 63 gps 67 speedo at 5100 rpm but normally run right around 60 depending on current and wind chop etc. Pleas let me know what differences the 4 over the 3 blade.

Re: 270 Laser Top End With Single 454 Mag?
 

PQConquest, that is the boat. I have family in Grand Haven and we were visiting. I was in the market for a PQ and happened accross that one. We love it so far. I was questioning the Volvo set-up, since everybody and there dog has a Merc. but I have heard a lot of good things about Volvo.

Re: 270 Laser Top End With Single 454 Mag?
 

The 3 blade is a Mirage "PLUS" 21p and the 4 blade is a Revolution 21p.

Hot-Hot-Hot,
I think I looked at your boat in the fall when I was looking at mine up in Michigan. Was that the boat originally owned by someone at Powerquest? Had low hours, mint condition and Volvo set-up.

Re: 270 Laser Top End With Single 454 Mag?
 

270Laser, That would be the boat. I looked at it the day the dealer in Grand Haven got it. He said it was for sale at another dealer prior and it was someone from the factory that owned it. Very sweet ride!! I stopped in a looked it over on my way to sea trial the 26 I bought up in Muskegon.
I've heard nothing but good from the locals on the Volvo drive. Only down is most are looking for a merc. But as always price will sell anything!

Re: 270 Laser Top End With Single 454 Mag?
 

I looked at it at the other dealer. It was in excellent condition.

Re: 270 Laser Top End With Single 454 Mag?
 

This is our first performance boat, I didn't realize that Volvo's were so hard to find in such a boat. Everyone I have spoke with speaks highly of them, I hope I didn't make a mistake not going with Merc?!! Any thought?

Re: 270 Laser Top End With Single 454 Mag?
 

They are very popular in Europe. My dad has one on his cruiser and hasn't had any problems. I think people are just use to seeing merc's in performance boats. Volvo makes a high quality setup. I don't think you made a mistake. It might be a tad harder to sell than a merc. but it will hold up the same as a merc with your powerplant. I'd be interested to see what your performance numbers are with the dual prop setup compared to the merc single prop.

Re: 270 Laser Top End With Single 454 Mag?
 

I was told that I may lose a couple of MPH with the Duo Prop set-up. But to date I have not been able to get a GPS reading. Speedo is reading 64-66mph with two people and 3/4 tank. My GPS is scheduled to be at my door from Fed-Ex tomarrow.

The only problem is that I just found water in my out drive lube tonight. Not to happy about that one. Hopefully the dealer will get it in ASAP to see what is wrong.

When I bought it I had the out drive serviced and everything was reported to be o.k. I am going to speak with them too, it has only been two months since then and I haven't ran it too hard at all. I will let you know what I hear.

Re: 270 Laser Top End With Single 454 Mag?
 

I bought mine about the same time and was told everything was serviced and ready to. Bad thing is I just don't trust anyone anymore. I drained the drive last week and all was good, oil was new. For a couple bucks I'd rather have the piece of mind seeing for myself. Just like what you found,you just never know and that can put an end to a great summer real quck. Let us know what the dealer says.

Re: 270 Laser Top End With Single 454 Mag?
 

As requested here are some videos of the 270 laster with 514hp and 510tq. I'll post specs later

Video

PLEASE RIGHT CLICK AND SAVE TARGET AS!

cruise http://www.customtints.com/boat05/DSCF0509.AVI
cruise http://www.customtints.com/boat05/DSCF0508.AVI
514hp motor at idle http://www.customtints.com/boat05/DSCF0514.AVI