Si TRIM VORTECH.
#181
Originally Posted by jouvert00
I haven't heard the V-1 is it more of a grinding sound or a loud whine?
What hp levels are you hoping for after the tune?
What hp levels are you hoping for after the tune?
#182
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I was thinking of doing the Si-trim but with my setup i would prolly have to reduce the rpm limiter between 6600-6800 or less depending on what psi we would see during tuning,and also eliminate overspining the blower.
But i would wait till i need new bearings and seals and have it done all at once.
But i would wait till i need new bearings and seals and have it done all at once.
#183
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Originally Posted by JET MECH
it is a loud whine, almost like a roots type blower. i am hoping for around 440 to 450 rwhp and tq numbers around 360 to 370. what i most wanted to achive on this project is higher boost in the lower rpm range and i feel i have accomplished this. the z pulls alot harder at lower rpm's. i am making 6lbs of boost by 3800 rpm.
#184
Originally Posted by booger
Have you done any logging of your boost ? was wondering when you hit top boost and the belt starts to slip ?
#185
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edit-- added 14psi @6400 rpm graph. 200 rpms lower than Jet Mech we just need to compare exhaust mods since he's at higher altitude. Gear differences (3rd vs 4th seem to make some PSI differences)
i just toook my Si out for its maiden spin. seeing 13.1 psi @ 5900 rpms (by that point i was FAAAR exceeding the posed speed limit). no feeling of belt slip and the logs look like they are steadily rising. if the boost kept rising in the same slope to redline, it would be ~17psi.
definitely need Jeremy to look at some of my logs as it seems fairly lean for the boost levels and i'm seeing 1 and 2 counts of knock (athough not in this run).
i just toook my Si out for its maiden spin. seeing 13.1 psi @ 5900 rpms (by that point i was FAAAR exceeding the posed speed limit). no feeling of belt slip and the logs look like they are steadily rising. if the boost kept rising in the same slope to redline, it would be ~17psi.
definitely need Jeremy to look at some of my logs as it seems fairly lean for the boost levels and i'm seeing 1 and 2 counts of knock (athough not in this run).
Last edited by str8dum1; 01-26-2008 at 04:00 PM.
#186
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si trim
What pulley setup are you running? That is alot of boost!!! My goal with the si trim would be increased mids while maintaining only 11-12 psi of boost at redline? I would be willing to drop my rev limiter to 6600 -6800 if needed. I hear alot of people say that 400 hp is a safe power level so I would want to stay close to that power. I'm heading to performance factory around March 6th and need to make a final decision.
Last edited by james12345pt; 01-26-2008 at 04:34 AM.
#188
the burninator
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the people who say 400whp is a safe number are the turbo guys who make around 400 tq and 400whp. A vortech that makes 400whp will make around 320 tq. IMO it's the tq number that's the important number to watch, not the hp
IMO the vortech is a different animal altogether and you could make 340 tq and 430whp safely...maybe even a little more
IMO the vortech is a different animal altogether and you could make 340 tq and 430whp safely...maybe even a little more
Last edited by sentry65; 01-26-2008 at 09:31 AM.
#190
on the intake side i am running the mrev-2 lower with the 5/16 spacer. exhaust side is stillen headers, 2.5" aps test pipes, 2.5" aps dual exhaust, altitude in vegas is 2100 feet above sea level. im on a rev-up engine as well. boost appears to be pretty consistant with my findings. and for the altitude i am at the 200rpm difference seems about right depending on your exhaust setup. i am running 100 octane for insurance against detonation. i will post my dyno results once i get the z back from GTM. hopefully the engine will stay together! if not then i have the excuse i needed to start my stout engine build..........
Last edited by JET MECH; 01-26-2008 at 04:31 PM.
#191
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i havent seen any knock on real pulls, only on like hit the gas and back off stuff.
i'm running non-revup, no spacer, smaller Injen dual SES exhaust and smaller Helix test pipe (smaller diameter). So that there would make me see higher psi. Do those test APS pipe mount up to stock manifolds?
Either way, cant wait for dyno #'s hopefully set some top 5 #'s
i'm running non-revup, no spacer, smaller Injen dual SES exhaust and smaller Helix test pipe (smaller diameter). So that there would make me see higher psi. Do those test APS pipe mount up to stock manifolds?
Either way, cant wait for dyno #'s hopefully set some top 5 #'s
#192
Originally Posted by str8dum1
i havent seen any knock on real pulls, only on like hit the gas and back off stuff.
i'm running non-revup, no spacer, smaller Injen dual SES exhaust and smaller Helix test pipe (smaller diameter). So that there would make me see higher psi. Do those test APS pipe mount up to stock manifolds?
Either way, cant wait for dyno #'s hopefully set some top 5 #'s
i'm running non-revup, no spacer, smaller Injen dual SES exhaust and smaller Helix test pipe (smaller diameter). So that there would make me see higher psi. Do those test APS pipe mount up to stock manifolds?
Either way, cant wait for dyno #'s hopefully set some top 5 #'s
#193
one thing to also consider with boost numbers on a rev-up versus a non rev-up engine is that the rev-up has cam phasing on the intake and exhaust side as well as the cams are alittle more aggresive on the revup from the factory ( i was told they are almost equal to the nismo cams). i think the revup engine naturally flows better out of the box.
#195
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Originally Posted by JET MECH
like i said before, i think we may really be onto something here for the 350z vortech community!
#196
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ya i just need to find out when JT gets back from Australia. He was pretty frustrated with my car !st time around with the boost leak and whatnot. I think this time he will be happy to have his name associated with the tune, and maybe i can get a PF.com sticker for my side window