Need advice on a 07 Blazer 202 250xs

[blazinrpms]

I guess I just expect too much of the boat! SPEED, that is! I am tournement fisherman and I am not satisfied with the top end. 202 with a 250 xs torqmast full gear, 40 gal fuel, full livewells, 1.25'" above pad, 27 temp plus, 15" man jack, 5800 rpms @74mph. Slowest holeshot on the water.(sometimes, I cant even get out of the hole!) What is the deal? I tried a 29 bravo lab finished had better holeshot but could not gauge my top end. I am told by some other anglers a hydro jackplate would get me better holeshot. I am thinking maybe. I would appreciate any input on the situation before I drop the cash. I would like to get 80mph+,wheather it be a hydro jack and a different prop. But all the same gear. Thanks!!!!

[Fear-This]

That boat should run 80 ALL DAY LONG..... DANG HOW BIG ARE YA.. someone will shime in to help ya somthing don't sound right.. good luck

[blazinrpms]

I'm 180, partner about 200. I kinda thought the same thing about speed. I wouldnt think the weight I have in the boat now, would play too much of a major factor.

[BEEZER]

First off my friend you do have an 80+ mph rig light fishing load. Something is not right. It's either all setup or you have motor problems. I would lower the motor down to even with the pad or just below and sell that tempest to someone with a Ranger who's running 3 inches below the pad (not the right prop for a Blazer). Find a fourblade O/T like a Trophy or Bravo 1. Hell the TXP's don't run bad either their a little tough out of the hole but they will run. Sounds like you also need to come down in pitch and get your RPMS up alot closer to the limiter 62-6300. This should get you hooked up better, right now your at 16% prop slip, thats bad for a Blazer. Hang in there and you'll get it figured out and probably learn something in the process.

[blazinrpms]

U think I should try a 29 bravo 1 L/F, or is it too steep? Also, what about a hydr jackplate? Would it help any for hole shot?

[BEEZER]

I THINK its too stiff, but I'm not 100% sure. I'll call some people today and get back with you. Do you have a prop guy that you deal with on a regular basis? If not it's a good person to have for info on comparisions to different props. They work alot of props and tend to know what rigs need in pitch compared to load. Mark is good at Marks propeller and Billy and Tim Hackney at performance propeller are also very good. Both of them have turned out some great wheels for me and lots of others. Maybe Mike, Jason, or GE will chime in with some help too today.

[bluegambler]

You do have a 80mph boat.(or more)maybe remove all the plugs on the tempest,the merc's are a little slow out of the hole without some blow out.maybe try lowering the motor some and get the prop to bite better to get your slip down.Try as many props as you can get your hands on.

[blazinrpms]

I dont have a prop guy I deal with regularly. Just some local retail marine shops, but I dont trust their judgement. I am almost thinking a hydrolic jackplate to keep the motor down on takeoff, then raising up once on plane and having the prop to get me over 80mph. I would like a 4 blade to keep stability on the boat, since Blazers get kinda crazy in a medium water chop. Unfortunately, I dont have the recources to try everything and return it if it doesnt work( ie props and j/p's).

[BEEZER]

Just my opinion, but a hydro JP is not a requirement on a blazer. TOO may guys run great on a static plate. How many rpms are your turning out of the hole? Has any of the props you've ran so far blown out or broke loose as theboat breaks over? Are you sure your an 1.25" above the pad, have you leveled the pad and the prop shaft on level ground and measured the difference in the distance from the grong to the pad and center of prop shaft?

[blazinrpms]

Yes, the boat does break loose when I get on pad. But with the 4 blade bravo 1, It did not. Maybe I should check the prop to pad and see what happens. But I have a feeling that it is not the problem. PS. Dont know the rpms out of the hole.

[canadabullet]

Try a 27 small hub trophy or even a 26 . The 26 will leap you out of the hole and on my 202 with a 2004 250 XS that hits the limiter at 5850 rpm I get 77.7 with the 26 trophy and 81.5 with the 27 trophy. The best all around prop I have tried is a hydromotive Quad 4-X 28 that gets just over 80 and still has the leaping holeshot . Your motor can be revved higher than mine before hitting the limiter so I feel that the 26 trophy would be about perfect and give you around 80 with a great holeshot. I had 4 people in mine yesterday with coolers and lawnchairs and still came out of the hole fine and got 75 with the A45 -26 trophy. Also try running your motor a bit deeper to make sure you are getting the bow light. I don,t understand what you mean in that you can,t guage your speed with the Bravo . If you do not have a GPS on board you will need to get one before you can make conclusive prop test evaluation. Even a little handheld will do. good luck ... mike

[blazinrpms]

My gps just takes about 15-20 minutes to find a satalite and track. I will try some adjustments with the jack plate and possibly try a trophy 26. Thanks for the info!

[Rebel1]

Your first issue is running 1.25in. above the pad with a tourney load. You need to be around even or 1/2in. above, depending on prop, load, and lower unit. As far as you prop, what lower unit and gears do you have? Your prop slip is too high, more than likely due to your motor being so high. Drop it down to even with the pad and run it and report back.

[blazinrpms]

Thanks, Ill look at the prop to pad again

[blazinrpms]

Checked the prop to pad and it was 1.25" below the pad instead of above. Any other pointers you can give. I lowered the motor this evening to 1.75" As for the lower unit, I know its a torquemaster. But I dont know the gear ratio.

[Rebel1]

Ok, rasie your motor up to 1in. below and run it. Bring it up a 1/4in. at a time or a click at a time till your lose speed and gain rpm or your water pressure goes below 15lbs. Any where in between 1 - 1/2 in. below, you should find the sweet spot. Your gears should be 1.75, so you should be able to spin the 27 Tempest to 6000 tourney loaded with 2 people, which should put you at 80 or a little over. Your prop slip numbers is around 13%, which is high, so coming up with your motor should help.

[canadabullet]

The 27 Tempests I have tried on my boat do not give a very good holeshot compared to a 26 or 27 trophy even with all the plugs out of the tempest ; but unless you have 1:62 gears or all the plugs blocked they will at least come out reasonably well. With all the plugs out another problem with the tempest shows itself in that in rough conditions the prop will lose bite causing you to back out of the throttle until it bites again which can be a pain. Another problem you might be having with prop slip and low speeds could be weeds trapped inside your prop, remove it and check for weeds. A trick with the Tempest to make them come out better and still not lose bite in rough seas is to just remove one vent plug and leave the other two installed. Overall I was not happy with the Tempests on my 2001 (flat top) 202 which is supposed to be a bit lighter and faster than the newer (round top) ones. I run an Attwood Hydro Stabilizer fin on mine which stops the low speed part throttle porpoising as well as dramatically improves my holeshot . I know everyone recommends raising your motor higher and I have tried that too and would like it if my boat went faster with less gearcase (less drag) in the water but as soon as I raise it the bow drops the revs climb and the gps says lower numbers. Test and keep an open mind and you will get faster. --- mike

[blazinrpms]

What is the minimum water pressure on the motor? I thought it was 8psi. Right now i Bounce between 10 and 15 wot.

[blazinrpms]

I am just goin to have to try all the options at the lake this weekend possibly. I bought a new tempest about 5 hours ago, and still had the plugs in. My son and I went out and we planed out fine the first time. Then, the second time, I couldnt even plane out. I had to back up to a dock and pry them out. Then it would plane out. I would like to get a 4 blade , just because of the bettter handling. I know there is going to be a way I can get in the 80s with a tourney load!! Thanks again.

[canadabullet]

I got a 26 Fury which is a 3 blade and a 27 DAH Trophy today to try and will post my results as soon as possible. I have not yet got 80 plus with a tournament load 2 up but was closest with 27 trophy plus at 79.6 . The best top speed so far ; light load, solo was 82.9 with a 29 Hydromotive Quad 4-X OB. I run my water pressure around 12-15 lbs. and feel nervous with less. One more thing to check is your livewells ; they will fill up 1/2 full if set on EMPTY ; set the selector to FILL and that will keep them from filling until you turn on the livewell pumps. I reread your first post and noticed that you get 74 mph full of fuel and with livewells full as well as 2 guys with tourney load ; That is not bad with that much load ; I only get 76.7 with a similar load with 26 A45 Trophy but my holeshot is good. ---- mike


Modified by canadablazer at 2:38 PM 9/5/2008