8.8psi from Vortech v3 kit on 100k factory block
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8.8psi from Vortech v3 kit on 100k factory block
Recently installed brand new V3 SCi complete kit for 2003 G35 6MT on the factory block that has over 100k.
After sorting out a few final issues, and a break in the weather I was able to take it out for a quick test drive and do some logging with the Split Second R4 software and Innovate WB02.
Final runs at WOT logged pressures up to 8.8psi at ~6500rpm. I guess I was expecting low to mid 7psi on the stock 3.33 pulley with the mileage on the block.
Only mods are 5/16 spacer, Greedy cat-back dual exhaust and Volk 19" Time Attack wheels.
After sorting out a few final issues, and a break in the weather I was able to take it out for a quick test drive and do some logging with the Split Second R4 software and Innovate WB02.
Final runs at WOT logged pressures up to 8.8psi at ~6500rpm. I guess I was expecting low to mid 7psi on the stock 3.33 pulley with the mileage on the block.
Only mods are 5/16 spacer, Greedy cat-back dual exhaust and Volk 19" Time Attack wheels.
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Thanks, I'm not in it to test the limits of boosting the VQ -- just wanted a little more 'uumph' when I went looking for it and I'm happy to say it's there.
Of course, psi does not equal power as exhaust back pressure can skew manifold readings. Will post again with hard numbers if I ever feel inclined to put it on a dyno.
Really wanted to go turbo as well, but here, in the bay area the smog hogs just don't call it legal. Good luck with the test.
Of course, psi does not equal power as exhaust back pressure can skew manifold readings. Will post again with hard numbers if I ever feel inclined to put it on a dyno.
Really wanted to go turbo as well, but here, in the bay area the smog hogs just don't call it legal. Good luck with the test.
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Stop / go traffic drive ability is unaffected south of ~4500rpms. From 4500- redline it pulls hard enough for what I wanted (for now).
The blower whine has made me keep the radio off for the past 6 months.
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I removed the bumper cover for easier access even though the install manual don't mention it. The biggest headaches that weren't covered quite as well as I would have like them to be, were the power steering lines and a/c lines. Both of which are well documented here and over at my350z.
In total, I took us ~5 days, start to finish. We had the luxury of time, only spending 2-5 hours day and striving for perfection to the point of obesessing over every aspect of the process. I had fabricated a second mounting bracket for the IC as only one comes with the kit.
I run the included Vortech / Split-second box. Datalog using R4 and Innovate WB. Tune with R4. Just passed CA smog! No questions asked (lots of odd looks). Total cost, ~ 5k.
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After a year of running the complete vortech kit, and zero issues, I picked up a 3.12 pulley to see what kind of trouble I could get into.
After some initial data logging it became obvious I was leaning out at higher RPM's... In fact, this was expected.
What was not expected was my tuner explaining to me that I was running out of fuel on the top end-- that my (stock) injectors were not able to keep up... I looked at him confused --explaining that every guru on the forums inisited the stockers were good up to 400hp...
His finger then floated over to the number below... "You're way over 400 at the minute"
Some quick math 385 x .175(cpe power train losses) = 452HP!
I reminded him this was a stock block with over 100k on it. We decided it would be best to lower the rev limit to 6k (where it was leaning out), and shoot for 9psi at 6k.
Overall, couldn't be happier with this setup.
After some initial data logging it became obvious I was leaning out at higher RPM's... In fact, this was expected.
What was not expected was my tuner explaining to me that I was running out of fuel on the top end-- that my (stock) injectors were not able to keep up... I looked at him confused --explaining that every guru on the forums inisited the stockers were good up to 400hp...
His finger then floated over to the number below... "You're way over 400 at the minute"
Some quick math 385 x .175(cpe power train losses) = 452HP!
I reminded him this was a stock block with over 100k on it. We decided it would be best to lower the rev limit to 6k (where it was leaning out), and shoot for 9psi at 6k.
Overall, couldn't be happier with this setup.