I have no idea how you concluded that from what I said... altitude and heat kills performance... I'm saying you are at or near sea level (cant get any lower than that)... the closest track here is nearly 1500 feet above sea level - the last track day I went to was 80+ degrees... the altitude and heat combined is horrible... however my 60' was 2.1, ET was 14.1 and trap speed was 101 and this was on OEM wheels with crappy Kumhos that spin like crazy – if I was at sea level it would obviously be much better…

What my post stated is that comparing 1/4 mile times from 2 different tracks means absolutely nothing... its like comparing dyno results from 2 different machines on different days... it means ZERO. Too many variables...

Now - if you were to tell me every other VQ at the same event was slower (and you weren’t lying) it would mean something... but the way you are trying to prove something in this case, actually proves nothing. In fact you are making my point for me… that you sometimes make statements that you really don’t have first hand knowledge of – and I’m not just referencing the things you originally suggested to the OP in this thread – it’s been in other threads too…

I don’t know you and really don’t care – so I’m not going to get into a pissing contest with you… but I will chime in when someone is giving bad info – so don’t take it personal, its meant to help the guy asking the questions.

BTW - if you re-read my post, I'm saying with a track at sea level 2.0 60' isnt much to brag about... sub 2 would be expected.

 

Man, you need to seriously calm down. You are a very uptight person. White and black with you huh? My statements make perfect sense. Your throttle body spacer is joke until you show some dyno graphs. You have been telling me how im wrong, but you have yet to give any evidence that says your right.

On a side note as far as i know i am the only G in florida that has broken into the 13's and had the 60ft time with the mods that i have. In fact a lot of other G's have more mods than i do and my 1/4 mile times are still better. I am not saying i have the fastest car in the freaking world, but give me a break. Numbers are numbers. So obviously if sub 2s were that easy everyone would be doing it. Drive on down to florida with your l33t G35 pwnzor

You need to watch this video...reminds me of you.

http://www.pwned.nl/

-Sean

 

Nismo G if u have stock 3.3 gears then u will lose to him. FYI.

 

guys lets not get carried away, I just want some helpfull input on what could be slowing my car down .
My 30ft is kinda slow, I probably average 2.45 sec ,, maybe this is my culprit , I might have some low end torque loss from a plenum spacer, TBS, open exhaust.
I'm thinking taking the car to a dyno to see where my AF ratio is at and I will get a tune while Im at it.
or can it be a vacuum leak at all? since i do notice car runs a little rough at idle

 

ok this is my advice from my own experiences..

you can take it or leave it

first, you need to take your car to a dyno. that's right, get off the computer and stop reading people's threads and go and get a power run with AFRs and see how the engine is going.

it seems you have fallen for too much BS and have put any kind of snake oil into/onto your car.

the dyno will show you that you are simply down on power. the reason? the mods you have put on are worse than the stock setup. its not hard to believe that nissan got it right in some areas, hell they spent years putting the G35 together doing R&D.

i completely 100% agree with all the sensible people on the board that think the throttle body spacer and exhaust could be your problems. but again, your "butt dyno" means nothing and saying "i think it fells exactly the same" means absolutely nothing. a dyno is the ONLY way to figure out what is wrong.

take the plunge, you will soon find out the problem

 

^^^ I already suggested that to him 27 posts ago...

 

I'm not uptight or not calm... you don’t wind me up - I'm just making sure the OP doesn’t get bad info... as far as the last post - I was explaining what you failed to understand in the previous post, that’s all.

 

Since we dont have a dyno here on Guam. After every mod I put in my car I take it to the track the same week. To see if my ET goes lower, and sure enough after every mod I do it will go lower like my light weight pulleys made my et go down .3 seconds. The biggest gain was my exhaust!!

 

and how do you monitor your AFRs?
what happens when that next mod maxes out your fuel system and you run it dangerously lean? or stuff up the intake also makign it run dangerously lean?

 

I monitor my AFR through my zeitronix zt-2 display:
http://www.zeitronix.com/Products/zt2/zt2.htm

I have a greddy emanage ultimate that I'm going to install in the next week for a tune

 

Update: got Nitrod installed today
I noticed my timing is at 13-15 while idling is that normal or is that retarded too much?
Also during regular city driving temp stays around 197-203 degrees is that ok?

 

infinitialex - have you been to a dyno yet?
i would assume the answer is no, as they check your timing before they run it and its the first thing that is played around with if you are down on power..

 

I have an 03 sedan 5at with a CAI and everything else factory, I consistently run in the 6.1/6.2 0-60 range with no other mods other than lighter wheels (OZ Racing - 15lbs. each) which I just put on the thing. I did upgrade the plugs (denso iridium) and find that premium 93 octane makes the car run completely different (better) than if I use 87 or 89 octane, it's a noticable difference. I'm ordering the Borla cat-back exhuast next month hoping that will get me in the 5's. If you find out what the cause is, other than the possible DNA of the car, let us know.

Not sure what to tell you, I've been contemplating a plennum spacer but now I'm second guessing the impact of that mod.

Good luck with it.

 

i dunno man on heavy 20" Wheels and 2 12" jl W6's in the trunk with an injen CAI only ran 15.0 @96...and thats in hot **** texas nights like 90 degrees

 

Yes I have
here is the link
https://g35driver.com/forums/tuner-d...003-sedan.html