Howdy Boatmad folks...

Jay Smith · 12-08-2009, 06:49 PM

I'm glad to be back on boatmad.com to visit, help and learn...As most know my "thang" is 2.5 High Performance Racing Division Mercury V-6 engines. If I can help just ask, I will have as many questions as you guys do.. I find ya never stop learning on these engines in a search for MORE POWER !

Jay Smith @ JSRE www.jaysmithracing.com

scooby_hugh · 12-08-2009, 09:50 PM

hi mate, welcome to the UK

Jon Fuller · 13-08-2009, 10:01 AM

Jay, do you focus purely on the powerhead end of things with the V6's, or do you cover gearbox's etc too?

Jay Smith · 13-08-2009, 02:34 PM

Sorry gear boxes aren't my "thang"....I have a friend down the road build them he is a great gear box guy. May I can talk him into getting into the mix...

Jay

Burty · 13-08-2009, 07:06 PM

nice to see you back here Jay!

Jay Smith · 13-08-2009, 09:53 PM

Thanks Burty.....How ya been ? And the rest of the guys, the Dowling gang, and Scott ? I'm still at the "Salt Mines" here at JSRE . BUT Sept 1 I'm going on a consulting job for EXXON ( 3 huge refrig. compressors ) for 60-90 days 12 hours a day , 13 days on one off for the duration, If I make it

...This has been the hottest summer in my memory . Hows the weather over there?

Call me sometime 1 281 576 5088 cst
Cheers,
Jay

Bad Boy 717 · 14-08-2009, 03:08 PM

Hi Jay,

Good to see you back on here

Engine still running great. Lucky for me we have a simlair boat down the coast for training and as a standby, so your engine is still fresh . . . . unlike me! Broke my ankle in a water ski race on 13/6/09 at 1145! Had couple of operations, all healed up ok. Got an 8" plate and various screws in there, physio for the next 6 weeks. Hope to race again next year.

You take care, ya hear

Scott

PS weather is rubbish!!!!!

Taz · 15-08-2009, 12:23 AM

gear boxs are pain. can u tune merc 300xs engines? have you tried them? to play with? im only getting 96million mph with twins can u push me over a ton ?

Jay Smith · 15-08-2009, 01:21 AM

Try Simon Motor Sports he is the 3 liter guy in the states...

I have built 1 pair of twin 250 XS Opti 3 liter engines I didn't like what I saw inside , IMO 3 liters have 1980 rotating assembly with a space shuttle fuel and ignition system. And heavy as an icebox..They are torque animals BUT I like light weigh HP and RPMs...

Just my opinion,
Jay

Captain Chaos · 15-08-2009, 01:24 AM

I was always under the impression that the 250xs had a pretty good reputation as production motors go. And that it was less hassle to run/own than say a 300xs stroker (that in truth probably had lass than the stated 50hp gain over the 250) ??

Jay Smith · 15-08-2009, 02:14 AM

This is nothing but my opinion, but after the success Mercury had with the 2.5 line of engines to install bottom guided rods in their new 3 liter wonder ( one of the best ways to scruff off HP with larger frictional contact ) and to retrofit old 1980's style loose con rod bearing with the old cave man wire cages is IMO 3 steps backwards. When design engineers are designing a new engine and can with a stroke of a pencil either learn from a proven success story ( the 2.5 ) and continue the positive evolution or revert back to 1980 tec. its a shame and very confusing, my money is that the 1980 style bearing was $.25 cheaper per bearing, "School Kid Bean Counter Type Engineers" gotta love em ! ...

BTW : I choose not to work on 3 liter engines although I get asked to daily.... I stay covered up with 2.5.'s .. I have daily calls from folks that got talked into the 3 liter and had owned 2.5's I built for them in the past got talked into traded "UP" now looking for 280's and wanna get rid of the 3 liter...

Believe it or not

The above is only my .02 and just my meager opinion....

Jay @ JSRE

MrRob · 15-08-2009, 07:09 AM

Welcome back Jay!

Jay Smith · 15-08-2009, 03:19 PM

Good morning Mr. Rob glad to be back...

Jay @ JSRE