http://www.powrtuner.com/index.php Fri, 03 Sep 2010 19:26:02 -0400 60 http://www.powrtuner.com/index.php http://www.powrtuner.com/index.php?showtopic=7862
When I changed from my old gen III with a 2.7” pulley over to a gen V my original plan was to start with a 3.0” pulley. However with my new belt wrap system, the 2.7” Pulley was only pulley I could run with the belt I had on hand. I also don’t have a 2.8 or 2.9 pulley to work with.

However I feel the 2.7” pulley maybe too small of a pulley to run with the expectations I am trying to get out of my tune.

I am currently running 11.8 AFR with 17* to 23* timing at WOT on 93 octane. I am seeing around 13.0 to 14.5 PSI at WOT (according to the stock boost gauge).

My goal was to keep the AFR at 11.8+ and have my WOT timing no less than 18*.

However as soon as my car goes into 3rd gear I start to get KR and that is why I had to lower the 3rd gear RPM timing down to 17*. If not, I get KR no matter what. I actually still see blips of KR at WOT, however its normally like 0.2 at the most.

This is the reason why I feel the 2.7 just maybe is too much for my setup on pump gas?

SO do you guys think I should keep the car as-is or get a 2.8” pulley?

Ideally with the 2.8” pulley I will be able to run my constant 11.8 AFR and 18*+ WOT timing.

If anyone has a 2.8” pulley I would like to buy or trade with a 2.55 and 3.0 pulley I have left over.

You can look at my signature below for what mods I am running.

]]> geforcextreme Eddie-98GTP Sun, 23 May 2010 15:36:18 -0400 Tue, 25 May 2010 20:15:17 -0400 7862 http://www.powrtuner.com/index.php?showtopic=7853 Half a second later they jumped back up again. Similarly the MAF readings fell in sync with the injectors. I have no idea why this would happen. My KR was about maybe half a degree to 1 degree, which is nothing because I see worse than that under normal conditions at WOT so I guess I didn't do any damage but I can't figure why the MAF would report LESS air due to the nitrous....

Somebody please help me with this...I can upload my bin or scan upon request. Thanks a lot.]]> RocketMan 3400-Modified Wed, 12 May 2010 16:53:14 -0400 Thu, 27 May 2010 10:39:49 -0400 7853 http://www.powrtuner.com/index.php?showtopic=7841 My question is will the series III MAP sensor work with the series II PCM, in the past I have always just used a series II MAP and be done with it but this time the customer wants to retain the smaller series III MAP. Thanks Dan]]> 2ML67 2ML67 Thu, 06 May 2010 17:13:47 -0400 Thu, 06 May 2010 17:13:47 -0400 7841 http://www.powrtuner.com/index.php?showtopic=7815 drayrunner drayrunner Sat, 27 Mar 2010 16:45:35 -0400 Sat, 27 Mar 2010 16:45:35 -0400 7815 http://www.powrtuner.com/index.php?showtopic=7781
anybody that has maybe rebuilt the motor, did you use a larger ring gap??? if so how large?]]> blowfishRus6 Gary Thu, 04 Feb 2010 10:39:00 -0500 Thu, 18 Feb 2010 13:04:17 -0500 7781 http://www.powrtuner.com/index.php?showtopic=7773
1995 Z34 Monte Carlo
2.5" Mandrel exhaust, T04E Super 60 Turbo, 42.5# injectors, OBDII Swap, '96 Intake Manifolds, Spearco Intercooler

we had problems getting the TQ numbers to display..
Dyno 1: 331.25hp
Dyno 2: 327.55hp
Dyno 3: 327.41hp

shitty cell videos
http://www.youtube.com/watch?v=m95l1lsT7sg

http://www.youtube.com/watch?v=1go7HrAaZIE

7 psi, Full exhaust


One of the guys on the other board took the liberty of caculating the TQ numbers for me based upon my 3rd dyno
RPM HP TQ
2500 50 105
2750 78 149
3000 125 219
3250 155 250
3500 186 279
3750 230 322
4000 268 352
4250 287 355
4500 302 352
4750 310 343
5000 313 329
5250 318 318
5500 322 307
5750 327 299
6000 323 283
6250 318 267
6500 306 247
6750 292 227




Shane]]> Redzmonte Highlander Thu, 21 Jan 2010 18:39:08 -0500 Fri, 05 Feb 2010 02:29:19 -0500 7773 http://www.powrtuner.com/index.php?showtopic=7750 . I have had issues with the BCM before but had it done under warranty so I never got a chance to see it.]]> WhiteKnight krunchss Tue, 15 Dec 2009 14:39:59 -0500 Sun, 20 Dec 2009 13:45:18 -0500 7750 http://www.powrtuner.com/index.php?showtopic=7745
I have since swapped in ar103 spark plugs gapped at .053. Everything seemed to be ok after changing the plugs as I thought. But when I went to this dyno event a few weeks back with the new plugs, I felt a misfire or so on the dyno.

I kind of blew it off because I wasn't seeing any misfires in my scanner (which I found out was another issue which I discovered below). Well 2 weeks later I went out for a WOT scan and my car was back to misfiring but this time really bad!

I soon discovered that because I had the PCM code P0300 disabled, My scanner would not detect any misfires. After re-enabling that code and taking the car out last night. I am now seeing misfires.

Oddly enough I am not seeing any misfires in my scanner at WOT. Yet I can still feel it myself personally?

I did see misfires on Cylinders #3 and #5 at exactly the same time. This occurred at different rpm's and mph's but only when the car was cruising around? Every once in awhile I would only see a misfire on cylinder #3 or #5 by itself. I thought possibly that because it was 2 cylinders, one of the coil packs was the cause of the issue. But I realized that cylinder #3 and #5 are on separate coils.

I picked up a new set of ZZP spark plug wires and hope after installing these, will correct my issue. If not what really could my issue be? I just don't understand how everything was ok for the longest time with the 104s and 2.7 pulley then all of a sudden it got worse, swapped the plugs with new ones and it seems to be getting worse now?

Currently my AC Delco wires have around 24K on them. That isn't too much but they aren't exactly new anyway. Being ZZP had that sale I just decided for the heck of it to swap out for those wires and hope for the best.

I am going to try the new wires and if that doesn't help de-gap my spark plugs. However I just don't see why I would need to de-gap them if I was able to run that gap size before. Now my coil packs I think are original with 154K...maybe that could be my issue also?
]]> geforcextreme geforcextreme Fri, 04 Dec 2009 12:31:30 -0500 Fri, 04 Dec 2009 12:31:30 -0500 7745 http://www.powrtuner.com/index.php?showtopic=7740 ok so i just recently installed an XP cam and rebuilt my trans and now only have 11* of timming and no traction control. i went to the dyno yesterday to tune the impala only to notice that traction control would not turn off nor would it activate and once under full throttle it would run a max of 11* of timming. now i do run a happy knob which is working because under IAT it will change as i turn the knob. I figure that the pulled timming is result from this traction control issue. ive checked torque management folders just to see if there might be something i had forgotten to change but all those tables are still the same pre XP cam. impalamike3800 impalamike3800 Sun, 29 Nov 2009 11:43:44 -0500 Sun, 29 Nov 2009 11:43:44 -0500 7740 http://www.powrtuner.com/index.php?showtopic=7732 ok so i have been having this issue now for about 6 months... when ever i do a run and let off the gas the car drops down to ~500 rpms and wants to die until im stopped then the idle will pick back up. i threw a new IAC in and still happens. any ideas? going to post Bin when i get home from work. impalamike3800 impalamike3800 Sat, 21 Nov 2009 15:45:57 -0500 Sun, 29 Nov 2009 11:34:18 -0500 7732