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Wellcraft
 BoatUS Boat Groups/Manufacturer Forums>>Wellcraft
Subject Topic: 1988 Gran Sport Post ReplyPost New Topic
 
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Capt Wayne
"Seaman Recruit"




Joined: September 06 2006
Posts: 2
Posted: September 06 2006 at 22:53 | IP Logged Quote Capt Wayne

Good day to all,

Just checking on other 1988 Gran Sport owners and any major issues you may have encountered. So far we are very pleased with the performance of this model and size Wellcraft.



Edited by Capt Wayne on September 25 2006 at 18:24
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the1craig
"Seaman Recruit"




Joined: September 14 2006
Posts: 1
Posted: September 14 2006 at 20:02 | IP Logged Quote the1craig

I have an 87 and love it.  What size props are you using?  I went up (in pitch) from 17 to 19 and the boat performs much better.  With the trim tabs down I cruise at about 2300 RPM where I was closer to 2800 before.  The speed is about 16 knots (18 mph) and my 454's are burning about 12gph each.  at 3200 RPM I burn about 17gph each.  With the new props the boat still planes very fast, I am considering going to 21's over the winter.  For whatever it is worth this is all in fresh water (Lake Huron).

 

Craig Bowman

Port Huron, MI

 

 

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Capt Wayne
"Seaman Recruit"




Joined: September 06 2006
Posts: 2
Posted: September 15 2006 at 08:54 | IP Logged Quote Capt Wayne

A reply to 1Craig: My props are 17 square. (17 pitch, 17 diameter).

Good to know when you increased your pitch you got better perfomance and mileage. Looks like a winter project for next season.  Thanks for the info.

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Back_steps
"Seaman Recruit"




Joined: July 12 2006
Posts: 2
Posted: September 25 2006 at 17:37 | IP Logged Quote Back_steps

Do not get caught putting WD 40 on your engines, if outboard or inboard,  inboard ends up in the bilge and then overboard via the bilge pump, or drain out.

WD 40 is a pollutent, and EPA is hitting hard on oil pollution on the water ways.

WD 40 is a petro base liquid

If marina see it or finds out, you will be not be allowed to launch.

Fines are big $$$$.

As far as RPM to plane speed, add a good set of trim tabs, Bennett is at the top of list, they stand behind their product. My pump went south. it was 3.5 years old and the replace it a $0.0 cost to me, including shipping.

Just a suggestion.

 

Good luck

Craig

 

 



__________________
Gone a fishing
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Don K
"Seaman Recruit"




Joined: December 03 2007
Posts: 1
Posted: December 03 2007 at 13:26 | IP Logged Quote Don K

I am looking at a 1987 Gran Sport to purchase. Can anyone give me any tips as to what to look for specificaly? Stringers, motor, etc...

The feul economy is a big one. The above note is very helpful, should I also expect the same milage?

Any tips are helpful.

Thanks

Don

 

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Dan Wyatt
"Seaman Recruit"




Joined: December 09 2007
Posts: 3
Posted: December 09 2007 at 20:31 | IP Logged Quote Dan Wyatt

    



Edited by Dan Wyatt on May 01 2008 at 22:18
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