kanabrewski

they were 4th gear pulls?
i need a tune, the A/F after 4800 rpm is disgustingly rich, ie. sub 10.9

Anyways i'll post the screen shots once i get them
240.8 whp
238.9 wtq
78F
75% humidity

i really wasn't happy with these numbers and the pig richness


HPtuners tune by Thursday!!
i'll go to the ngk plugs after the Hptune.

BLKSS

So a 2.8 does not work properly with the stage kit tune? That sucks... I was hoping I could just slap one on. Thanks for posting the info.

p7x

The 2.8 needs a tune for sure. Still waiting on that. But if those are the numbers in a 4th gear pull those are decent.

distillion

anyything u slap on under the hood dosnt work properly under these cars lol, always have a tune in the future when thinking about an intake and pullies.

NightriderCobaltSS

still not bad though your hp and tq are preatty even instead of the 241hp/218tq. But a tune is always good. id like to see the gains once u tune it. i have been thinking about the PB 2.8 just want to get my Aeroforce gauge first.

CobaltBurst

well if you buy a 2.8 pulley then a tune, then why go GM stage 2? all your getting is overpriced injectors right?

OniMirage

your sig says 338wtq.

with 238wtq I think that is actually 15~20 more than stage 2 and 240whp is what 2~4 more than stage 2? I think that looks about right dude. a 4th gear pull will under rate you a lil bit and a 3rd gear pull will make you over rated a lil bit since neither is 1:1. Next time at least do one 3rd gear pull just so you can calculate the actual power between both. I am sure there is a formula you can use to figure your power without doing both pulls but I assume it would be easier just doing both when your there.

memphisr24

That tq looks sweet. 238 is a keeper. If you can just lean it out a tad bit, that would be nuts. I wouldn't have went GM Stage 2 though if you plan on getting higher hp and tq numbers. Should've just went with a custom tune instead.

CTCOBALTSSS

You are absolutely right about the torque. With GM stage 2 I put down 242whp 212wtq.
Just click DYNO in my sig.
That 2.8" pulley uped the torque by 26ft.lbs.
That's a nice jump in torque. Don't expect more whp because it takes more power to run the smaller pulley. So those numbers look correct. That's a nice torque jump.

kanabrewski

i have a warranty for 6yr 72000 miles also. thus the gm stage II

OniMirage

warrenty ftw

CobaltBurst

lol not if they scan your computer and are like WTF is this its not our programming.... they wont cover it, unless they are dumb....

kanabrewski

oops on the sig....now fixed
yup, i'll do 3 3rd gear pulls and 3 4th gear pulls after the tune.

lemme see if i can get the the 3 pulls uploaded somewhere to host the vids. 4th gear hit 140mph and like 17-18spsi at the rev limiter

kanabrewski

or i work at the dealership

hell when they installed all the aftermarket ****. the warranty clerk just ignores everything non-gm.
the techs just like having fun with a car that is modded. springs and torque dampener cost me 3 pizzas for the guys. the stage 2 install was only 128.00 employee labor cost.

the main tech who i have work on the car suggested HPtuners just as you guys have

CobaltBurst

lol if they ignore everything why spend your money on the stage kit?? lol, my dealership is the same way...i know the people really well, my exhaust install was like 50 bucks. for an hour or so.

SS33

Hmm, I just had my stage 2 reflash done this morning, and I have the 2.8 sitting on my workbench ready for install. I was geeked about it, but now,,,, what psi did you hit on those runs, the 2.8 should be around 17.5 right?

It should be making boost even quicker than the 3" though right? Not just due to the size, but the fact that the 2.8" pulley weighs like what 1/4 of the stage 2 pulley?

Also I see you didn't put in the BRK7E's yet. Did you at least regap your stock plugs?

SS33

Of course if you buy HPTuners, you can save the stage 2 flash, do your own custom tuning, and reflash to stage 2, if need be for warranty work. I'll probably go that route once I get tired of the stg2 w/ 2.8 power level.

And hells yeah warranty FTW

CobaltBurst

i have a 2.7 pulley and im pushing 17 psi even...

SS33

^^Are you running a tensioner or the GM stage 2 belt? Might be getting some slip?
I'm at 15 psi even with just stage 2 and an intake

CobaltBurst

im running a larger tensioner pulley, its not slipping...

SS33

hmm, either I was lied to by the guy I talked to with the 2.8, or intakes make a bigger difference than I thought than.

What is everyone else seeing with the stage 2? I know I hit 15psi leaving the dealership morning because I logged it on my interceptor. I'll see what it hits in second on my way home.

I'd say maybe my gauge is innacurate, but it gets the same signal as the stock boost gauge, so they should be just as accurate (for whatever that's worth) right? Whenever my pillar pod comes in I'll be able to check the interceptor against the stock gauge

Anyways, sorry for taking this off topic a little

OniMirage

hmmmmmm since having installed my injen intake friday I have been getting slightly over 16psi when i was hitting exactly 15 previous to that day.

distillion

my 2.85 i hit 17 psi, with a 2.7 my friend hits about 19, im geting a 2.7 installed soon with a tune and 60 pounders, i need more torque lol

CobaltBurst

maybe its b/c my car only has 4500 miles on it?

SS33

Sweet, I might be close to 16 too than. Like I said I know I hit 15 earlier, but I'm not sure if it was in first or second though, as I was only logging PSI and IAT2.

I just got reflashed this morning, so I cant wait to get out of work and go play, :-)

Cobaltburst:
I'm only at 3300 miles myself. It looks like an intake does increase the boost a little bit. that might be it. You have the raised redline too right?