Whipple Upgrade for 525efi
 

Does anyone have any feedback on this?
I'm talking about the computer recalibration, not the super charger. Sounds great to me and not very costly. I think I would need to run 91 octane if I choose to do this.




http://www.whipplesuperchargers.com/...sp?ProdID=1283

reread his post !!!!!

There's a guy up in Bolton Landing on Lake George that's pretty good with Whipples, EFI, etc. He programed 2 engines for me and they came out perfect.

Did any other work need to be done like Razor states?
Or Just plug and go?

I kicked this around on a Donzi forum since it is tempting with the Whipple price drop. I was advised to have the ECU calibrated on a dyno and then again on the water. I also think that the lumpy 525 cam would not be a good choice for a SC engine and the compression should ideally be lowered too. I decided to wait.

I actually read your post/question,and think it looks like a great product! :evilb::drink:

Upgrading props will prob help to achieve optimal results.

Keep us updated on how it turns out!

I already purchased New Prop. I intend to recal the pcm, but will not be able to run the boat till spring. I have a very reputable local guy that suggested I bump the rev limiter up to 5800 (he does not reccommend 6000 rpm because of the XR weak link). He has a guy to do this, but I'm not sure what he intends to do. I need to talk to him to see if the recal is only for the rev limiter or other stuff like Whipple would do. I will keep you posted.

Please keep the feedback coming

PS: This is ONLY a PCM upgrade and NOT a blower stage 1 kit.



Thanks
Ray

Ok I'm an !diot, I read the op got it as a question regarding the calibration of an sc setup. Have no exparience with the ecu upgrades other than on 496's. Works fine, but not a lot of top end improvement. Don't know if the same will be the case on the 525EFI. On the 496's a thermostat change is needed.

lol I made the same mistake of assuming the thread was about a Whipplecharger! Ooops...:party-smiley-004:

Actually I would try running the same prop as well.

That reprogram raises the rev limter as well to help use the entire power band of the engine.

LOL,,,,not at all,,,,Ive done selective reading as well !!!!! :lolhit:

Haven't we all?
In fact... My whole educational experience was done with selective reading

:lolhit:

Love it but so true!

And some of these threads are so long, and get derailed so many times you have to use selective reading!

:drink:

i was told most merc calibrations are too rich?!?

Too rich or just some built in leeway? I wouldn't do this and then have to buy 91 octane which can be hard to find at the gas docks. And it is only about 25-30 hp and 1-3 mph, probably about 1 mph for most of us. It might be a neat trick for sealed 525 racers, if legal, but doesn't sound good for a recreational boat. I will pass on it and recommend that you do too.

Now the whipple kit is intriguing but I'll have to wait until my money tree sprouts another 20-30 grand. :)

The 2004's were. There was a reprogram on later models to get rid of a transom sooting issue.

Of course with todays fuel,,,,I think Id rather have that tune back :mad:

This is more the a fuel map change though

Raising the rev limit? May want to read this:

http://www.mercuryracing.com/blog/wh...ts-are-limits/