Well, I've used the omnipotent "search" function and had no success So, for those of us that are wanting to enter the exciting world of forced induction and enjoy auto-xing and tracking our Z, how many of you are F/I?
What are you using?
Any heat issues (of course there are always heat issues)?
Thanks

 

I just did a full day at the track, first day there with my APS single turbo. I performed great, once I filled up with 100 octane. 91 seems to cause hesitation sometimes. The thing is, I was still beaten by a NA Z with a better track setup.
I didn't have any heat issues. Did 25 minute sessions, 5 times. Stock radiator with Water Wetter added. Running 0W 40 Mobil 1 (yes, zero W). It was in the upper 70's, low 80's. Temp never moved over the halfway point.
Turbo actually seemed to get stronger as the day went on, but that was probably due to burning up the 91 octane.

EDIT: see my video in this forum titled Spring Mountain extension...

 

^^^Rob is that you? You changed your name to dirtroad?

Back on topic - I was that N/A Z that Rob was talking about and I can vouch for him having no problems for a full day at a 3.1 mile road course. Temp outside was mid to high 80's.

 

Can't say I've seen a forced Z out at any National level events.

I've seen a G35 with a supercharger in OK.

 

You were running 0w40, doesn't the first number indicate its lower temp protection. So like a 5w40 would be protection from 5degrees to 200 or something, whats the 0 for?

 

^^^I'm guessing he meant to type 10w40.

 

Your probably right it makes a lot more sense, I just thought maybe i had the number designation wrong. Cuz i was looking to get a higher viscosity oil for the Z. Turbos increase the heat under the hood very easily.

 

it is 0W 40, I wanted to use Mobil 1 10W40, but they don't make one. the shop that installed my turbo put it in, and I've stayed with it. I didn't care about the low end protection as much as the high end, which i wanted to be 40.

 

Oh...I have never heard of 0w40. Wierd.

 

i auto-cross my g35c once a month, with the supercharger it's a handful. My times have pretty much stayed the same. I stay about 3-4 seconds behind a 350z with hoosiers. I use my street tires. I haven't tracked it since I had it installed but maybe this november.

 

Yeah I don't see how forced induction would have too much of an advantage in autocross being that it would be really hard to control. Track racing is another story. I plan on doing the Stillen Stage 2 custom vented hood.

 

Great replys, keep'em coming, the more info the better.
I personally prefer track days but the girlfriend prefers autocross. So far I'm looking at the Vortech kit, though the Stillen kit seems rock solid too.

I could definetly see how F/I could hurt at autocross if the driver wasn't careful.

Anyone with the turbonetics kit?? I would think that the heat from the turbo could burn the paint on the hood...or at least up the under hood temp's severely???

 

The thing I like about the Stillen is the linear power. With the centrifugal F/I kits you don't get boost until 3-4k rpms. I do a lot of track racing and the last thing I want is to be going through the middle of a turn when the boost kicks in. Plus the Stillen Stage 1 & 2 has a warranty.

 

I've had my car down the drag strip over 150 times...on the road track 3 times in 100+ weather and it's performed perfectly every time.

30,000 miles on car, 16,000 of them BLOWN.

 

I think FI in AutoX would be too much. The Z/G has plenty of power/torque already, especially after some simple bolt-ons. Turbo would be overkill imo, and actually hurt you. I'm still debating the Stillen S/C for next year, but I'm still not sure. Track, of course, is a different issue...

 

I track my TT Z. I have done Streets of Willow a couple of times with no issues.. and i do mostly drift events, but when i was able to make it to the big track (buttonwillow), i barely made it two laps before my oil temps spiked to like 270+F.. water temp was ok. It was hot that day with ambient temps were like 90+F.. check out my thread in the FI section...

I took off the front undertray and got around 4 laps before the oil temps spiked again. I'm running the PE TT kit. stock radiator. no oil cooler. stock power steering.

however i am changing all that with a new oil cooler that i purchased and i'm about to pick up a larger power steering cooler.. i think i'll keep the radiator the same since the water temps are ok.

i think my Z would suck big time in auto-x. i barely get enough traction in 2nd gear and all those tight turns and braking and acceleration in auto-x would just make me spin...

 

I think a FI Z is much more well suited to the track than the auto-x. And if you go that route, the only class you could compete in once you were good enough is Street-Mod, which can be nearly impossible to compete in unless your a really good driver or have really deep pockets... usually both.

 

A FI Z would be SM2, it wouldn't qualify for Street Mod as we don't have enough seats.

 

^Good point.

 

This guy was at Pocono with PDA in August 2004. I don't remember his name, but he had a supercharger (don't remember which one), and was pretty fast.