Mine measures approx 2&3/8 in (out from the blower). The diameter at the blower attach is hard to measure but it's around 6 in..Hope this helps

 

Thanks guys.

I have done a 'Troubleshooting/Help' Guide to post on the 350Z UK enthusiasts forum based on the info. to date. Hopefully if the usual stuff is in one place, you won't keep getting bugged by us Brits asking the same questions over

ps Have e-mailed vortechsuperchargers.com to see what gives.

 

Sorry missed this post - I'm not sure how to interpret this value unless someone can post the 'older kit' figures.

Oh and what does NPT stand for 'National Pipe Thread'? I know, us brits!

 

I will have to measure the G35 filter I have in waiting. NPT is "National Pipe Thread?. I only warn you because many have made the mistake and had leaks. The brass fitting for the oil return has NPT threads.

 

Good info Ron,that's what makes specific vehicle forums so valuable to members.

By the way,why don't I see a ad plug for SDM Racing in your sig........... ..lol

Tripp

 

I posted the above info. on the UK site and I got a response which confused me - perhaps you can help. The guy said that a wideband AFM was an essential addition for this kit.

If I'm going educate my tuner, then get him to tune up the car for me on the dyno and if I have VERY little intention of the tuning the car myself, why is it essential.

Surely the tuner will have the necessary sensor tools to monitor the air fuel mixture and these tools can be removeable.

If I do need such a device, can you recommend one (a reasonable $$$ one), how easy to and where in car to install and where I can get it from (shipped to UK). Zeitronix Zt-2 is my first bet?

I know you're having to educate me but I DO appreciate it and I am trying to progress good information into the UK market.

 

If the dyno tuner is planning on adjusting the A/F ratio as well as power he will need and probably has a tail sniffer. The sniffer measures ( in broad sensitivity) the A/F ratio of the engine. He will, using the R4 S/W adjust the appropriate cells in the table(s) to balance HP/TQ to a safe A/F ratio somewhere between betwen 11-12 ..An AEM wideband while helpful to monitor the ratio is not critical..IMHO

 

Your tuner will be able to measure and adjust A/F using the R4 program while you car is on the dyno.

Don't have NAV, so I have the Zt-2 from Zeitronix mounted in the area where a NAV unit would have been. Mounted in such a way that I can close the door. Don't know if in the UK you bought your car with NAV

 

Cheers guys.
So not essential.... BUT... having had a look now at Zeitronix, it does look nice and its upgradeable so I could go with base unit and LCD and O2 sensor and then add EGT and Boost sensors later on. This car does stuff like ordering things you don't really need doesn't it!!

No don't have Nav either (the Nissan BirdView is not reckoned to be any good here in Europe) so I could put the base unit in there and maybe the LCD in the sunglasses holder

Is zeitronix.com best place to order if I get tempted?

Thanks again.

 

Spoke to tuners. Apparently they 'sense' or sniff gas pre-cats on both cylinder banks with wideband sensors because they have found during HKS S/C tuning (they are agents for this) that one bank typically runs richer than the other.

They didn't seem to see any problem tuning with the R4 as its voltage-based and a piggy-back.

I remain a bit concerned that they may be simplifying what they need to do, since mine will be the first Vortech they will tune.

What pitfalls should I point out.

 

Sounds like they will install a couple bungs with widebands. What do you mean "sniff". This usually implies inserting a probe that feeds into an O2 sensor..If they actually measure at the pre-cats you will get a more accurate A/F reading for tuning.. The exhaust (sniffer method) has a bias of about .3 to .5 in A/F reading..

 

Yeah 'sniff' was my word and I don't really know the answer except that they also noted the bias by sticking a sensor in the exhaust (tail pipe) and this wasn't what they do - will investigate.

I have also sent them the Underdog Racing Tuning Guide - wow that's a useful text! Do you know below what RPM the ignition retard is extrapolated (i.e. the region where user tuning of Map B will be needed). The guide talks about 3000 rpm for Toyota trucks - is this value same for 350zs?

 

Look for the latest dialogue I have been having with Booger on the forum. He states the stock timing retard #'s...vs rpm...Hope this helps

 

Sorry, had to go visiting for a couple of days - can't instantly find that thread. What's the title?

 

The stock Vortech timing map .Takes out 2 degree's at 5000rpm and 4 at 5500rpm and 6 at 6000rpm and 10 at 6500rpm.....and Im not sure , Ide have to look but I think 15 degrees at 7000rpm

 

Finally got around to measuring the spare G35 filter I have on my bench. The cone it 3" long. The flange is offset and is 3/4" long. Still had to do some dremel work, but a lot easier to use this filter Vs the one that came with the "Z" kit back in June 2004.

Check the Vortech site and they are still showing a filter for the "Z" and one for the "G35". A previous post indicated 2 3/8". Can someone measure their filter on a current Vortech SC kit for both vehicles and confirm?

 

Ah yes, I've found the post now. So what you're saying is that since the SS box has only discrete values to adjust timing (via RPM (500) or via Boost (0.5psi)), to achieve as smoothe a response across the map as possible you should take advantage of their being 2 variables (both discrete) rather than one, hence finer control.

Did I get that right?

My question was in relation to if you lean out the map at high RPMs then (according to the Underdog guide) the spark knock sensor which cannot work below some threshold (lets say 3000 rpm) extrapolates the leaned out timing into the low RPM range leading to a higher tendency to knock. So you need to retard timing here also to compensate.

Did I get that right?

 

For the benefit of other potential Vortech owners, the (smaller) G35 filter (P/N 8H040-035) is shipped as standard.

Also a Bypass Valve (P/N 8D204-010) is shipped instead of the listed Blowoff Valve (P/N 8D204-011). The instruction manual correctly describes install of the Bypass Valve.

Cheers