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 Forum: TECH TALK   Topic: Merc 60 APX

 Post subject: Re: Merc 60 APX
Posted: March 8th, 2024, 12:31 pm 

Replies: 9
Views: 502


There are claims from a tuning company in Aus about getting the Yamaha F70 from 60ft-lbs/70hp to 75ft-lbs/80hp with just a tune, but on higher octane.. So just imagine adding mild cams - maybe another 5hp.. Maybe with valve springs they can up the RPMs to like 6800rpm. These 60ci engines become WAY ...

 Forum: TECH TALK   Topic: Merc 60 APX

 Post subject: Re: Merc 60 APX
Posted: March 8th, 2024, 10:08 am 

Replies: 9
Views: 502


85hp.. hm. that'd be alright - for a sporty, medium performance daily driver: https://www.lethalperformance.com/vr-tuned-ecu-tune-mercury-marine-outboard-60-efi-995cc-2000-vrt-boat-32.html although, 60hp + 15hp != 85hp... some interesting info and ideas shared here: https://www.crackerbaythundercats...

 Forum: TECH TALK   Topic: Merc 60 APX

 Post subject: Re: Merc 60 APX
Posted: March 4th, 2024, 1:44 pm 

Replies: 9
Views: 502


It is essentially the exact same short 60 they had previously in the FR 60 and the 60R, which were also examples of not trying very hard.. They are just doing what is easy for them. But nice to have an option for short shaft, instead of none.. Back when one of our clubmates had one (Formula Race 60)...

 Forum: TECH TALK   Topic: Merc 60 APX

 Post subject: Merc 60 APX
Posted: February 28th, 2024, 11:12 am 

Replies: 9
Views: 502


Looks like a "new" F4 engine.
Probably just the older Formula Race 60 with the 60R rev limit and new decnals.

https://www.mercuryracing.com/engines/c ... 60apx.html

 Forum: TECH TALK   Topic: o-rings vs. gasket for cyl head

Posted: February 25th, 2024, 12:24 pm 

Replies: 3
Views: 268


Thanks for the replies. Opinions seem varied, even before I asked here. The thought came to mind that results may have a lot to do with block deck prep - maybe a lot of folks "DIY at home" without getting the block flattened properly. I can see this being more important for o-rings than tr...

 Forum: TECH TALK   Topic: o-rings vs. gasket for cyl head

Posted: February 23rd, 2024, 10:15 am 

Replies: 3
Views: 268


What are your opinions on o-rings vs. gaskets for the cyl head?

I think I've heard o-rings are NOT the way to go, yet some are committed to that design - for example:
https://tsrproducts.com.au/collections/yamaha

Do o-rings seal reliably?

 Forum: TECH TALK   Topic: What’s Happening With The 70CES Yamaha?

Posted: January 22nd, 2024, 6:27 pm 

Replies: 15
Views: 1428


LittleCharger wrote:
agreed they do add up !


:roll: :? :(

 Forum: TECH TALK   Topic: What’s Happening With The 70CES Yamaha?

Posted: January 20th, 2024, 11:03 am 

Replies: 15
Views: 1428


Great info... Agreed. Thanks, Seumas. Tuner I got a stainless replica of the original made, ran well but not as smooth internally as I'd like. Then I got a squared off tuner made, billet. Worked really well possibly more top end than original but not race compliant. Then a replica of the original m...

 Forum: PARTS FOR SALE   Topic: Looking for OMC, Yamaha & Nissan outboard parts

Posted: December 17th, 2023, 4:43 pm 

Replies: 4
Views: 2056


Stoked about this!

Kev, I'm very likely in for adapter plate. Saving my pennies..

 Forum: READERS' RIDES   Topic: Medium Performance Boat Canada!?

Posted: October 30th, 2023, 9:02 pm 

Replies: 32
Views: 59910


DoktorC wrote:
Lol...even riding shotgun makes you feel like a celebrity lol. Very special day for me just being along for the ride!


No Kidding!.. They timed the weather well too..

I did see the Wave to Wave video about that run.. Very Cool.
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