INFE

iTrader: (1)

yea i would run a monster amount of timing and see where that takes you.

Rodimus_Prime

iTrader: (3)

um my rev limit is 7k not 8k, I never see anything close to 26psi, I see 20.6 at most with the 75MM

I only trapped 103.7 with it tonight, the car feels dead with this thing on

Darkmanx

sounds like you got some problems son.

Rodimus_Prime

iTrader: (3)

it dynoed 282.7 last week and in july dynoed 278 and both times i trapped 103.x

obviously if there was some internal issue i wouldnt be able to put out those kinda numbers

Darkmanx

yOUr track speed and your dyno numbers dont go together or maybe im retarded.

Area47

one of following things are wrong.
1. tune
2. driver
3. all the above
4. tater tots

up the rev limiter to 7500. you will be fine. im sure there is a few things that are in the tune itself.

something is not right at all. your trap speed ranks right up there with a stage 2 car

Rodimus_Prime

iTrader: (3)

Well im about to put up the tune and the logs in a few min here. Your right they don't go together. I'm sure my driving may have something to do with it, maybe im shifting wrong, I don't do no lift shifts I let off the gas when pressing in the clutch and shifting.

Maybe I'm too fat?

http://rodimus.sinisterimages.com/20...us_60stune.hpt
http://rodimus.sinisterimages.com/Cecil1.hpl
http://rodimus.sinisterimages.com/Cecil2.hpl
http://rodimus.sinisterimages.com/Drivehome.hpl

heres the slip from tonights failure it was the first attempt with the 80MM
RT .192
60 2.238
330 6.217
1/8 9.309
MPH 79.72
1000 11.935
1/4 14.109
MPH 103.68

2nd pass was slower because i hit the rev limiter on the 2nd run, tires were deflated to 24.5psi they are Yokahoma S Drives mounted on redline Ion wheels 17s

ebristol

iTrader: (4)

granny shifting, not double clutching like you should...

I'm sorry. Just had to.

Darkmanx

Maybe the dyno is broken and you arnt really making the power you claim. you say the car feels slow and you trap 103 so put 2 and 2 together . i drove like **** my first time at the track with stage 2 and i trapped 104 in about 100 degree outside temp and 160 iat2

ralliartist

I'll say combination of tune and driving too easy.

are you on street tires?

Rodimus_Prime

iTrader: (3)

yea so two seperate dynos in different states are broken? I dont think so. yea im on street tires

It seems to be only at the track this type of thing happens Ive raped stage 2 cars on the highway like they were nothing

ralliartist

really wierd. only 103 on street tires is weak. I'm doing 104 on tall ass slicks.

You should definitely be MUCH faster.

Rodimus_Prime

iTrader: (3)

I must weigh 4000lbs or seomthing

ralliartist

must be. I was full weight plus a tad. I only took my tools out of the back and my spare tire. But any other junk I had in the car, I left it. I know I was sitting over 3100lbs with me in it.

Rodimus_Prime

iTrader: (3)

i didnt take out anything and i had my tools with me

Also whats the point of revving to 7500 on valves that arent rated beyond 7000 and surely making more than 20.6psi? Id rather keep my revs lower and get the same or lower boost with the 75MM. Its a pretty safe call that on a motor that is limited to 7000 rpm the 75 is always going to work out better than an 80MM.

Steven Flit

Are you running a progressive meth kit? If not, get it and it should really help you improve timing down low, giving you a better 1/8, and an over all better 1/4 w/ E.T.
Your 1/8 is so meh..... I ran that w/ a 2.9 on a m62 w/ no cooling mods w/ a 2.3 60'.
I'm no tuner, but definately trying my best to learn with what logs i have access to, w/o the cable unfortunately for now.

Question though... On your 1st log link posted.
Why are your iat2s so high on a 80mm(3.1496") in 2nd gear on a far more efficient blower? And in 3rd your seeing 150s degrees iat2... Your iat1s are at 75.. so thats roughly high 60s/ low 70s actual outside air temps. And your knocking like crazy half way thru your WOT 3rd gear pull... 9.8 kr at its peak... eh...
What cooling mods are you running? It seems like your heat soaking, pretty bad. You shouldn't if you got your meth kit hooked up right.

I'm seeing roughly 144 degree iat2s in 4th at WOT on a 2.7 pulley w/ meth kicking in at 12 psi spraying directly into the intake manifold with your same IAT1 temps. When I WOT 1st to 2nd, my car actualy cools itself until hitting 3rd gear.

What cooling mods do you have? I could only imagine what your 75mm(2.9528") pulley was doing to your cobalt... eh.
Strange though.. after reviewing your other two logs. Your iat2s dropped almost 10 degrees in 2nd in the cecil2.hpl log. And in the drivinghome log your iat2s in 2nd are barely over 100...

Not sure how much 3.5 - 1.8 KR effects you (once again still learning)
but your getting it on your drivinghome log at like 6900 WOT in your last 3rd gear pull. IAT2s were in the 130s...

Rodimus_Prime

iTrader: (3)

my IATs are high because sitting in the staging lanes at the track they shoot up, i have a progressive kit, it doesnt do ****

the drive home was obviously cooler because im moving not baking in staging lanes

i knocked on the one run because of the AFR getting too lean up to 11.9 , ive since fixed that I believe

Steven Flit

Ahh that makes sense.... ya that knock is crazy lol..

Progressive doesn't do **** eh? Possible you don't have it hooked up correctly, or tuned for it properly. And if your not spraying into the Intake manifold, you should. The meth/water cools a lot more effectively in that area. Are your meth/water nozzle(s) to small?

The stories I've heard from a local tuner near me claim the complete opposite.

lsjwannabe

iTrader: (1)

Something is way off base, i trapped 110+ on the 70mm leaving in second gear.

Rodimus_Prime

iTrader: (3)

Well can you tell anything from the logs?

I'm running the AEM kit starting psi is 7 and full psi is at 17 or so, im running the 315ml nozzle which states its for 250-400hp, the next size up is 550ml which is for 400+.

ShortStack

You should probly be full at like 12 or 13 psi...

lsjwannabe

iTrader: (1)

Go to the bigger nozzle today and do a few runs i started on the 5 gph and went to the 7gph i started at 8 and went full at 16

ShortStack

It slipped you have the harrop... which probly wouldnt need full blast till 15 or 16

lsjwannabe

iTrader: (1)

well i would say around 7 then 14, 17 is to high for peaking at 20.

ShortStack

Id always figure atleast a good 5 to 6 pounds worth of full blast...