500efi and 700sci height differnce
 

Anybody know how much taller 700sci's are, over a 500efi?

Attachment 577447

https://www.mercuryracing.com/engine...s/700-sci.html

Here's some quick info.

Bout half a huffer...........:D

I don't seem to have the dimensions on the 500efi, but I did find some info on a 525. On the 525, the top of the sweeper headers are the highest point at about 23.4" up from crank center. On the 700SCI the highest point is at the back of the supercharger at the flame arrester and it is 27.92" up from crank center. So I would say, about 4.25", give or take a little.

Thanks guys. Might do something crazy... will have to look into this more, and quite a few stars would have to align too.

I see a pair of 700’s in the classifieds calling your name. I say do it!

you have a raised hatch so shouldn't be an issue.........might look into the new 3.8 kits for your 500's, tuned up will probably make more power than the 700's.....Whipple states same height as the headers

I agree.. I know the 3.8 kits worked awesome on my 525's, so they would be a great choice for the 500's. It would be a good way to save some coin and have a great power upgrade..

what’s a ballpark price on 2 whipples installed?

I got mine before whipple had a price increase, but at the previous pricing through Eddie Young mine were roughly 25k. That included all the extra fittings, upgraded stainless steel fuel tank pickups, larger fuel lines and misc parts needed. I will say dollar for dollar it's the best money I've spent for any upgrade. There's nothing like the feel of them when you roll in to the throttle. I would add drive guardians at the minimum if you have XR drives.

Lots of drawings, manuals, etc available here:

Brunswick Marine in EMEA Download Center - Download Center

https://cimg9.ibsrv.net/gimg/www.off...a0637954ab.png
https://cimg0.ibsrv.net/gimg/www.off...e1d0a7bf12.png

couple things to consider, I have a flat hatch on my tiger and did 4.0s on it with no hatch mods. depending on the year of your 500s there isnt too much of a diff between the short blocks on them than the 525s or the 700s. i did afr heads, cam and tuning and am at 975. it might be easier physically and on the wallet to add whipple 3.8s to what you have, you already have cmi exhaust and a great serpentine set up... just food for thought.

Dean on here has whipped 500's in his 30 Spectra Cat. They pump out some power and you don't have the header issues. The only down side is no closed cooling.

That is a great site, good find.

I still find it odd why merc used a tall, narrower intercooler. Maybe just to be different from the standard whipple stuff.

PPower, thats perfect info, thank you for posting!

My clearance issue will be at the rear of charger, where air filter is, and the inner lip where my engine hatch sits, when closed. The motors in the 35TS sit up higher than a 38, so im pretty sure that will be a problem. Not a fan of cutting up my boat, just take make them fit. But if by chance it did clear, I like the 700's for the closed cooling and, they look cool too, and would be the only 700 powered playboy :drink:

The 700's in the classifieds, are what have me looking into this. I would sell off the headers, the NXT transmissions and spare charger, that come with sale. Along with my warmed up 500 EFI's, and would most likely be out less money, than putting whipples on mine and also having closed cooling. First thing is first, I need to measure first.

here are 4.0s on a 500efi, barely at the top of the cmis
https://cimg7.ibsrv.net/gimg/www.off...c1f5937cc1.jpg