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600 & 700 Boost PSI

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Old 05-08-2020 | 06:38 AM
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Default 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).

Last edited by endeavour32; 05-08-2020 at 06:45 AM.
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Old 05-10-2020 | 09:59 AM
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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.

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Old 05-10-2020 | 11:32 AM
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Originally Posted by Got Freedom?
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.
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Old 05-11-2020 | 10:14 PM
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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
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Old 05-12-2020 | 07:09 AM
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What kind of fuel are you running at 10PSI?
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Old 05-12-2020 | 07:38 AM
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Originally Posted by frickstyle
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
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