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 AA's DHP PowrTuner log

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AA
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PostSubject: Re: AA's DHP PowrTuner log   Mon Apr 16, 2007 3:00 am

Here's a couple graphs comparing the 3.2" and 3.4". In the first graph (RPM vs. KR) the 3.2" shows more frequent knock, but it's below 3 and fairly short-lived (not severe, imo):



The resulting performance increase (Throttle % vs. MPH from the same run) is impressive:


_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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PostSubject: Re: AA's DHP PowrTuner log   Mon Apr 16, 2007 7:09 am

Well you answered my question over here wink. Looks like the 3.2 isn't much more kr than the 3.4?
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PostSubject: Re: AA's DHP PowrTuner log   Mon Apr 16, 2007 8:27 am

In this case it looks that way, but not really. the 3.4" run was without much of a tune (didn't need it until up high, really). The 3.2" took some dailing in. Before the tune I was running near stock MAFF values. KR popped up earlier, and sustained in the 3-5 range. I got a nasty peak of 6 last year at the track. Now it's under control it seems, at least at 40F, but no, we are not comparing apples to apples in terms of KR. I'll try to find a previous scan of the 3.2" so you can see how it was.

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
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PostSubject: Re: AA's DHP PowrTuner log   Tue Apr 24, 2007 11:22 am

Well it got warmer, and 3.2" SC pulley doesn't like it very much. Tried tuning for 75F temps, but KR is back. I've got a 3.3" on the way. In the meantime, put the 3.4" back on and will try to tune it for the hotter weather.

Hope it cools down a bit for IDD this weekend. nervous

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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PostSubject: Re: AA's DHP PowrTuner log   Tue Apr 24, 2007 1:39 pm

AA wrote:
Well it got warmer, and 3.2" SC pulley doesn't like it very much. Tried tuning for 75F temps, but KR is back. I've got a 3.3" on the way. In the meantime, put the 3.4" back on and will try to tune it for the hotter weather.

Hope it cools down a bit for IDD this weekend. nervous


get the I/C instead! thumbsup
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:32 pm

AA,
How come you stopped logging your progress at this point.?
Was just curious, have read through the thread and found it educational and informative even though I don't have any tuning software yet.
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:36 pm

In your opinion, do think I should be on the lookout for used DHP or just wait until I can afford HPT.
Or should I plan a trip to Ohio and have you upload a tune in my car. j/k
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:39 pm

I stopped adding to this thread when I stopped learning and experimenting with tuning the car. It became clear to me that trying to add more fuel in order to run a 3.2" SC pulley wasn't worth doing. Once I got the car on the dyno, I realized that trying to tune for zero KR is not as important as tuning for HP. Everything changed for me at this point, and I'm now happily running the 3.4" with roughly the same tune from '07.

I did change the shift program, which I have posted here:

http://rivperformance.editboard.com/series-ii-scans-tuning-pcm-f5/shift-points-t3619.htm?highlight=shift

As for tuning your car, I would be more than happy to hook up and give it a try. We could get close, but it really takes days or weeks to get everything dialed in perfect. If you are happy with "close", I could give it a shot.

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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Rickw
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:45 pm

Thanks, I would like to duplicate what you did with trans changes. It's obviously working for you.
Your able to get the performance you want, when you want it, and the higher gas mileage when you want it also.
I really can't wait to adjust the TCC settings, they have bothered me on every GM car I have owned.
Constantly tapping the brake pedal to disengage it so as not to lug the engine. The factory settings are not good for the best mileage in my opinion.
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:46 pm

TCC and shift points are the easy part of tuning, because they depend less on you car's mods. MAFF tuning is a bit more involved, because you must scan, tune, scan, tune, etc...

_________________
'98 SC Riviera 268k miles 298 HP/370 TQ 0-60: 5.79s ET: 13.97 @ 99.28 4087 lb 20.1 avg MPG Nelson Ledges Lap: 1:30
3.4" pulley AL104 plugs 180 t-stat FWI w/K&N 1.9:1 rockers OR pushrods LS6 valve springs SLP headers ZZP fuel rails
KYB GR2 struts MaxAir shocks Addco sway bars UMI bushings GM STB Enkei 18" EV5s w/ Dunlop DZ101s F-body calipers
EBC bluestuff/Hawk HP plus SS lines Brembo slotted discs DHP tuned Aeroforce Hidden Hitch


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
Rickw
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:49 pm

I just need to learn and I'm looking forward to it actually.
Already have a good base of knowledge on how all is supposed to work, now I need to practice.
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 4:56 pm

AA wrote:
As for tuning your car, I would be more than happy to hook up and give it a try. We could get close, but it really takes days or weeks to get everything dialed in perfect. If you are happy with "close", I could give it a shot.
Thanks very much for the offer but Derek is going to help me soon with some basic tuning. I only live about 50 mins. from him and he has various saved DHP files to try.
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PostSubject: Re: AA's DHP PowrTuner log   Sat Aug 01, 2009 9:07 pm

I came to the same conclusion. Tried and tried but no matter what I did I couldn't run that 3.2 without KR. The 3.4 no problem. We'll see how the new motor does (once it's running) with the Gen V and VS Cam with the 3.25 pulley that came pressed onto the Gen V. If I can run it without KR I'll keep the 3.25, if not I'm going to swap my MPS back on.
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