from all the times we have tried adding timing. it wont accept any more then 22.5 degrees before i get knock. bad6as has logs and a video of afr to post up whenever he gets around to it

 

Notice those times were all during cold months - I doubt they were DA corrected. That and, a wheel tire combo is big. If I run a skinny on my Z, I pick up nearly 4 mph. A tune is not going to make THAT big of a difference in your times (115mph to 123mph) unless something is seriously wrong. The advice offered above is fairly solid. Try it out and see where it gets you. But, don't set your expectations too high. Not everybody has a factory freak.

 

Might have carboned up chambers from sucking oil... I've seen that cause early knock many times. I would either do the seafoam intake cleaning - or, like us old schoolers do, give it a drink (suck a small cup of water through a drinking straw into a vacuum line at 3,500 rpm - be careful not to let it get too much too quickly). Check the inside of the intake before doing anything and see if you have oil puddled in it - if so, you need to do something for a catch can in the PCV system to stop it...

 

i have 17x4.5 racestars i picked up a few weeks ago on sale but now just waiting to get money together to buy the tires i need and waiting on the washers and lugnuts to come. so i know there is mph to be gain from taking weight out but good god 4mph!but reguardless of da my car is trapping .3 mph less then when it was stock wish a bad clutch. and since then have the audition if the entire intake lightweight clutch and headers. something does not add up there. factory stock c5z go faster then i do!!!!!!!!!

when i replace the ls6 and went to a fast 90. i noticed there was ALOT of oil in the intake. i put the fast on and it was spotless inside since i had just ported it and made sure it was clean on the inside. well i took it off a few weeks ago when i did the header swap because i had removed the entire air system. so the intake had to come off to get to that one bolt. there was ALOT of oil in the intake. alot more then i would expect to see on an intake with 1k miles on my car. but i took off the vally cover line that goes to the intake and ran a line from the vally and pass head down to the ground. so no more oily intake but the intake ports looked almost spotless down by the valves . up top had a little oil that i had to wipe out but seafoaming the car wouldnt hurt


and another question i have. would it be worth getting a bigger maf. i have the stock one on it now and with the vararam, the only way it would fit was butted right to the tb. im on a sd tune right now so should i take it out from between the tb and vararam and mounted on the side somewhere out of the way or spend the money and get some 90mm maf

 

If you are on a SD tune why can't you just remove the maf entirely?

 

We went out last night w/ the latest tune and it got lean (from turning off cot) so added some more fuel in the pe table. Comanding 12.1 and getting 12.7

 

Isn' there a temp sensor that still needs to make everything work? And id like to. It make my vararam fit better to

 

You can get an adapter somewhere (or modify the harness yourself) and run an f-body temp sensor. You'd just have to drill a hole for it somewhere behind the filter.

The last two wires should be the ones for the IAT. If I remember correctly, they're labeled as follows:

D - Violet wire - reference wire
E - Tan wire - IAT signal wire

The IAT can be found at a local parts store for less than $10 I believe. Not sure if it'll come with the rubber gromet though.

 

Oh ok. Ill look into it more once I figure out why my car isn't trapping or et what it should and then ill start worrying about thee little things like maf and getting my skinnies put on to start giving it some hailmerry passes

 

Why are you quoting the fastest list to compare what your car should be running? They are not the norm, obviously.

 

VE table is dialed in?

 

@skull-
I hear there is an 04 Mystichrome Terminator in Mt. Airy that was being hunted for?? I am pretty sure he wants to play when you get your tune straight (and maybe some more mods....)

 

oh boy here we go...

 

so all these people that decided to race there car just happen to buy factory freak cars.

find one person with as many mods and is running the times i am and compare it to the people with less mods and how much faster they are going then me

i cant find my 11.6x at 117 but i think there was something wrong in the timing on that pass because i pulled at 1.69 60ft spinning to around the 100 ft mark. then the fallowing pass i dead hooked and went

11.830 @115.14 on a 1.703 60 ft
115.14 MPH ON A FULL BOLT ON C5Z06 GTFO

top 30 fastest cars on the c5z bolt ons list

1--10.890@125.06--1.465--GARY2004Z06--'04 12/08-VR, DRs, ARH LTs, Tex Exo-Skel, 4.10s, Post #356
2--11.175@121.07--1.610--94z28racecar---'03 12/09-VR CAI, LTs, UDP, Mcleod Twin, DRs, Post #463
3--11.214@122.30--1.580---Dr Ron---------'03 11/05-VR CAI, ET St, LT, ClutchSlip
4--11.25x@123.7x--1.58x---Butcher--------'03 10/04-Bolt Ons, 3.90 gear
5--11.329@121.72--1.606--Stevo92z28-----'02 03/10-LTs, Blackwing, ET Streets, Skinnies Post #500
6--11.37x@123.7x--1.48x---PaulZ06--------'0x xx/xx -Bolt Ons, 3.73 gearVideo
7--11.405@123.61--1.616 --Qksiver---------'02 01/05-VR CAI, NT DR, Clutch Slip
8--11.442@122.51--1.643---spindoctor-----'01 01/07-ET ST, CAI, LT
9--11.461@119.79--1.634---procs2v--------'02 04/08-HT CAI, MT DR, LT, Post 220 Video
10-11.566@119.50--1.772-Robert@SpeedDemon-'04 02/09-CAI, BFG DR, LT, Post #380


11.598@119.38--1.722---N75196-------'04 03/07-LT, VR, Clutch, MT/DR Slip
11.62x @ 11x.xx--1.66x---holedgr -------'02 xx/xx -Bolt Ons
11.661@118.86--1.702----MVR155------'02 11/07-LT, BW CAI, DR, Post 210 Slip
11.733@118.32--1.757--Bonestockz06---'03 11/08-Stk LongBlk, LT's, CAI, DR's, Post #335
11.741@117.92--1.628--TheBigK--------'02 10/09-CAI, Ported TB, Tune, DRs, Post #454
11.74x@119.78--1.74x---pro dh --------'02 06/07-VR, LT, 18" BFG Slip
11.760@119.14--1.718---Cyric----------'03 04/07-CAI, LT BFG 18"Slip
11.769 @ 115.96--1.57x--RooferDave----'03 06/04-Bolt Ons, 4.10 gear
11.78x @ 116.31--1.69x--CHIWS6 ------'03 11/07--VR, NT DR, LT, Post 224, Video
11.804 @ 118.xx--1.75x--dhajek--------'02 xx/xx-LT
11.818 @ 116.86--1.715--Higgs Boson---'01 10/07-CAI, LT, ET ST, Post 194,Slip
11.819 @ 116.11--1.680--19vette91----'02 03/06-LTs, VR, ET ST Radial, Post 257
11.82x @ 117.70--1.70x--Cheif Dave----'01 xx/xx-Bolt Ons
11.847 @ 117.93--1.775--96-speed-----'01 11/06-CAI, LT, Pulley, Post 15
11.85x @ 117.40--1.78x--Pray----------'01 xx/xx-Bolt Ons
11.86x @ 118.5x--1.82x--Blue Angel-----'02 09/04-LT, CB
11.896 @ 122.05--1.940--ZOHSIX-------'03 01/07-VR, LT
11.916 @ 117.40--1.845--mqqn ---------'02 10/07-HT CAI, LT, Toyo Proxis T1R, Post 450,Slip
11.93x @ 120.97--1.86x--COUTO1981---'03 10/05-LT

 

Look at Roofer Dave's time. He went 11.7@115. I think it goes to show what I was talking about earlier with regards to DA. Most of those other times were recorded when it was cold out....look at the dates. Maybe you are a touch on the low side for MPH. But as I stated earlier....you're not going to pick up a boatload of MPH unless there's something seriously wrong with the tune.

I think that's what 01ssreda4 was getting at. Every car, track, and driver is different and you need to be careful where you set your expectations.

 

I dynoed this car last week in Frederick Md. There is a little left on the table tune wise. Combine that with some more set time and it'll run a little quicker/faster.

 

The fastest list are not the norm. No other way to look at it. These times were likely produce with all bias towards ET including things like weather. If it was so easy we'd all be on the list. Setting a benchmark for an average car from these lists will always leave you disappointed. The minute you make the list, you'll know your car is far from "average" at that point you've come to....simply proving my point.

 

Regardless of the fast list, 400 rwhp in that car should trap 119-120 pretty easily.

 

Exactly I don't even care about running the e.t. I care my car is missing 5+ mph in trap speed. Personally I think I should trap 122 with no questions asked on a pretty good run regardless of da. Now if the moons were aligned and an eclipse was happening. I think the car should trap 126 maybe 127

 

You'll need about 460~470rwhp to do that...