More mods for the track day eh Vlad?

 

Correct, this is the correct part number to order .

Looking at the diagram on the end of Page 1, it is #4 shown.

Rev-up Sedans and Coupes share the same piece, all non-rev-ups have the original airbox/stack.

I've sold a few of these to customers who claimed that it helped them gain 2-3 HP, nothing too noticeable for a butt dyno, but when you're trying to squeeze out EVERY HP possible with bolt ons, it's an easy way to go!

These are available through our store and we sell them for forum members for $92 shipped (+tax if in CA).
Retail is normally $115-130.

( 800-919-8130 or pm us!)

 

Dss,

Have you had a chance to develop an opinion on any noticeable performance differences yet?

 

any update

 

well guys, I got the cover on Monday.. it looks very impressive as I had initially mentioned, received p/n# 16526-AC700 as confirmed in subsequent posts, from EverythingG35.. by way of Infiniti of Scottsdale for $93.36 shipped out the door.

My initial response once installed, is that it gives the engine a slightly deeper, throatier sound, coupled with an MD plenum spacer, Z-tube and AMSOIL Ea drop-in filter... it sounds very nice.. without the asthmatic Stillen "whine" at WOT.

The next change I noticed was an improvement on low end throttle response and torque. The engine seems stronger below 2700 RPM.. don't have numbers to back it up.. but my butt dyno definitely detects a more spirited acceleration from a stand still.. without having to mash the go pedal.. ya know?

Response in the other end of the spectrum feels about the same.. haven't pushed it though.. it's only been a couple of days so far.. not much time to "play" on that end of the power band.. over all though, it is definitely a minor tweak in the positive direction... it adds the overall "polish" to the state of the engine.. minor, but definitely a plus.. really smooths it out a bit as far as response goes.

As I get more time on the clock for this mod... I'll be interested as to see what kind of an impact it has on my overall gas mileage.. after installation of the AMSOIL Ea air filter I saw about a 4 MPG average increase in mileage.. so I'll see what it does for that parameter... "film at 11"

 

Hmmmm...about what I thought. I had the same reaction to the HR Y-pipe I put on last week. Thanks for the write up. This will be my next mod.

 

cool dude...

 

I haven't driven the car hard yet I'm still in Cali.

I'll do a couple of G-tech runs when I get back on saturday.

I plan on going to the track next thursday to test this out if it doesn't rain.

 

Finally I will test this out at the track tonight since there is no rain in the forecast tonight.

I replaced the z-tube and 06 box with the stock tube and 04 box. I will try to do 2-3 runs in each configuration.

I noticed after I switched the boxes and tubes that I have decreased throttle response now.

I don't know it's because of the box, z-tube or both, but it has decreased.

I will post up my results later and maybe some vid.

I'm hoping for maybe a high 13 we shall see.

 

^^^ I suspect the baffling in the G tube attributes to the felt decrease in throttle response... for some reason over time the forum theorists decided the Z tube doesn’t make a difference other than sound (I'm no rocket scientist but basic principle in theory tells me a short straight stream of air is more efficient in cramming the combustion chamber than a labyrinth of plastic baffling).

I look forward to your track test results Derek

 

I remember a long time ago people thought the 350z had 7 more hp than the G35 because of the z tube. Due to both cars having the same engine but different intake tubing.

350z=287hp

G35=280hp

How is the car coming along Mike? I can't wait to see your results and you may be right about the added baffling from the G tube.

Well I'm off to the track.

 

went by the shop today... engine is out of the car - everything installed (except for one side headers)... they have some race cars they are working on... my engine should be back in and ready to roll Monday or Tuesday...

BTW, I don’t think I mentioned to you I took the cams down to Jim Wolf… he said they were broken in nicely… had to be cleaned up a bit and journals lightly polished - but he put them on his scope and everything is bueno.

 

cool that the cams are still perfect. I hardly put any miles on them. Well my loss your hp gain.

I just got back from the track and my best time was 14.164@97 with the z-tube and 06 box.

The best time with the 04 box and g-tube was 14.261@96.

I chirped 2nd with the 06 box and z-tube. I think I need my tune tweaked for 93oct since I was tuned on 91oct.

The reason why is I raced 03 5AT 350z with a short ram intake and custom exhaust. I raced him with the stock intake set-up his time was 14.476@100.084 my time was 14.352@96.049.

I'm trying to figure out why he had higher top end than me but ran a slower time. I was running consistant 2.040-2.050 60fts all night on street tires. His 60ft was 2.198. Any ideas? I'll post up the slips tomorrow and I think the DA sucked tonight it was 75 out.

 

good times But it seems unclear if it was the Z-tube or the 06 air box that gave benefit... next time maybe try Z-tube with 04 box then Z-tube with 06 box...

As for trap speed slower but faster ET - that used to happen to me all the time, my ET would be faster but Vlad and Wallys traps were a little higher (in the old days) – in your case you were getting better 60’ (trq converter probably helped) so he took a bit longer to get to speed… if his 60’ was down to 2.0+ like yours he might have a better ET. Were you on DRs?

 

[QUOTE=OCG35]good times But it seems unclear if it was the Z-tube or the 06 air box that gave benefit... next time maybe try Z-tube with 04 box then Z-tube with 06 box...

As for trap speed slower but faster ET - that used to happen to me all the time, my ET would be faster but Vlad and Wallys traps were a little higher (in the old days) – in your case you were getting better 60’ (trq converter probably helped) so he took a bit longer to get to speed… if his 60’ was down to 2.0+ like yours he might have a better ET. Were you on DRs? /QUOTE]

no drs just street tires (not the ones I raced you on) I just remembered that I have a 3.5fd and he has a 3.3fd. I think that's the reason for the lower trap speed but quicker ET. I used to run 14.2@100 when I 1st raced my car in MS with the 3.3. I think the DA was over 1000 tonight.