View Poll Results: PSI FI or GM Performance Upgrade?
PSI FI Kit.
4
3.57%
GM Performance Upgrade.
85
75.89%
Undecided.
18
16.07%
Already Have PSI FI Kit.
5
4.46%
Voters: 112. You may not vote on this poll
PSI FI or GM Upgrades
#6
Originally Posted by Co27SSKid
WHAT ABOUT THE TWIN CHARGER KIT????!!!!! ooo rrrriiiggghhhtttt giggidy giggidy giggidy
#7
Moderator Alumni
Originally Posted by silverSS
Undecided for now, im liking the psi fi more and more every day b/c GM is holding back on us, and we dont have prices on GM yet
#9
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Originally Posted by undrgrndcobalt
Does the PSI FI kit void warranty?
#11
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Originally Posted by 2006ArrivalBlueSS
I think it would have to. It would be a pretty tough arguement with GM explaining that you spliced into their factory wiring harness to overide their factory settings and you can't figure out why that piston went through the hood when you revved at 7000 RPM ('cause you overode the factory rev limiter)
#12
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Originally Posted by 2006ArrivalBlueSS
I think it would have to. It would be a pretty tough arguement with GM explaining that you spliced into their factory wiring harness to overide their factory settings and you can't figure out why that piston went through the hood when you revved at 7000 RPM ('cause you overode the factory rev limiter)
#16
Premium Member
Originally Posted by 2006ArrivalBlueSS
I think it would have to. It would be a pretty tough arguement with GM explaining that you spliced into their factory wiring harness to overide their factory settings and you can't figure out why that piston went through the hood when you revved at 7000 RPM ('cause you overode the factory rev limiter)
BUT I predict...
Combining the GM Stage 1 with the 2.80" (71.1mm) PSIFI pully and a "retuned" PSIFI Powerpaq will become the dominant combination for the LSJ. Just stamp 77.9mm on the PSIFI pulley and hide the Powerpaq for "full stealth" mode.
To any tech it will look like Stage 2
This would still only spin the M62 to 15000 RPM which is still well below the 16,000 maximum "peak" RPM the M62 is rated for (14,000 rpm is it's CONTINUOUS maximum speed)
WopOnTour
#18
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Originally Posted by JoeyCobalt
Stock internals can take up to 7500rpm, to spin more you just need to replace to valve springs not even the seats or keepers.
Actually a GM engineer that was interviewed on Street Tuner Challenge, said the bottom end can handle 8000 rpm all day, but the valve train can't. Supposedly, that's all you need to change to get to that mark.
#21
Senior Member
Originally Posted by OniMirage
the stage one reflash aparently is suposed to change the limiter to 7k rpm
And wow the polls are a complete shutout. GM upgrades owns!
#23
Same here depends on the price. If they are anyhting like the mopar stage upgrades for the str-4, then i will buy one for sure. But every chevy owner knows that chevy parts for so damn expensive.
#24
Originally Posted by phxSS
Actually a GM engineer that was interviewed on Street Tuner Challenge, said the bottom end can handle 8000 rpm all day, but the valve train can't. Supposedly, that's all you need to change to get to that mark.
We have found that you want to open up the clearance on the bearings and run good - clean synthetic oil if you plan to spend any time in the 8000 range.
I think the poll needs a "both" option because a Stage 2 package and a tuned PSI FI set-up would just be amazing.
#25
Originally Posted by SCdyne
I think the poll needs a "both" option because a Stage 2 package and a tuned PSI FI set-up would just be amazing.