Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   600 & 700 Boost PSI (https://www.offshoreonly.com/forums/general-q/366232-600-700-boost-psi.html)

endeavour32 05-08-2020 06:38 AM
600 & 700 Boost PSI
 
Can anyone tell me what the max stock boost is on a 600 SCI & 700 SCI?

I've got a 600 SCI that was modified in Europe. The only company that I know of that was modifying 600 SCI's over there was installing 700 SCI cams and reflashing the computers with 700 tunes, which my computer says 700 SCI. Currently I'm seeing max boost at 10 psi, this is at 600 ft (Lake Michigan).

Got Freedom? 05-10-2020 09:59 AM
Stock I was seeing 6psi on my 700SCI and a little over 9psi with a Whipple stage II kit. And that was also on Lake Michigan. If they swapped the cams, PCM & top pulley then the only other difference would be the intercooler, which is larger on the 700SCI.

GF?

endeavour32 05-10-2020 11:32 AM
Originally Posted by Got Freedom? (Post 4738189)
Stock I was seeing 6psi on my 700SCI and a little over 9psi with a Whipple stage II kit. And that was also on Lake Michigan. If they swapped the cams, PCM & top pulley then the only other difference would be the intercooler, which is larger on the 700SCI.

GF?
Is your stage 2 running a 3.75” top pulley? If so, I would guess mine is the equivalent to a Whipple stage 2.

fastenuff2 05-11-2020 10:14 PM
I have a 600 and it was around 5psi. I staged 4 and it is 10psi. this is in stlouis area in the hot and humid weather

frickstyle 05-12-2020 07:09 AM
What kind of fuel are you running at 10PSI?

fastenuff2 05-12-2020 07:38 AM
Originally Posted by frickstyle (Post 4738558)
What kind of fuel are you running at 10PSI?
the tune is for 91 but if im at the Ozarks I get 93 no alcohol


All times are GMT -5. The time now is 03:16 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.