Ordered Whipple
Sep 7, 2011 | 11:49 AM
#161
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I have my set to shift @ 6k in first 4 gears
As far as the TPS goes my WOT shows 83% in HP Tuners, this is normal and there is a thread about it somewhere but basicly you have 100% throttle even though HP Tuners is logging 83-84%
Found the thread
https://www.performancetrucks.net/fo...estion-434915/
As far as the TPS goes my WOT shows 83% in HP Tuners, this is normal and there is a thread about it somewhere but basicly you have 100% throttle even though HP Tuners is logging 83-84%
Found the thread
https://www.performancetrucks.net/fo...estion-434915/
Sep 13, 2011 | 05:26 PM
#164
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Joined: Feb 2011
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Yet another update: I finally got around to installing my boost gauge yesterday. Also, I am getting an O2 sensor bung welded in tomorrow so I can finish installing my wideband. I am waiting on HP Tuners to send my new pro interface box so that I can track my air/fuel ratio in the program.
I also finally found out what my peak boost is. Pretty much as suspected, it's 6.5 psi. I talked to Jeff and Mike at Whipple and it was agreed that I should step down to a 3.375" pulley. That should add about 2 psi and take me to 8.5 psi. I also asked about any tuning changes needed, and Mike said that no changes would be needed. I'm certainly going to keep a close eye on my injectors after installing the new pulley. Theoretically, this change should take me to where the system is supposed to be in the first place (8-10 psi).
With just a pulley change, and some small tweaks that I have already made (removed speed limiter, changed shift points for 1-2,2-3,3-4) I should expect a nice improvement at the track. We shall see.
Update 9/20/11: just a quick update (to myself I guess
), I installed my new pulleyt today. I have not had much chance to do a full test but it's a very nice and noticeable improvement. I'm hitting right around 9 psi at WOT so I picked up a little more than 2 psi. The real difference is up top as would be expected. Air/fuel is still around 12 at WOT. I don't have my interface back to log any runs. I was hoping to get to the track this Friday but since I won't have much time to dial in my transmission changes, it might have to wait until next Friday. My but dyno says low 13's at 101-103. If I can dial in the shift points and get some good launches, I'm thinking high 12's are definitely possible.
I also finally found out what my peak boost is. Pretty much as suspected, it's 6.5 psi. I talked to Jeff and Mike at Whipple and it was agreed that I should step down to a 3.375" pulley. That should add about 2 psi and take me to 8.5 psi. I also asked about any tuning changes needed, and Mike said that no changes would be needed. I'm certainly going to keep a close eye on my injectors after installing the new pulley. Theoretically, this change should take me to where the system is supposed to be in the first place (8-10 psi).
With just a pulley change, and some small tweaks that I have already made (removed speed limiter, changed shift points for 1-2,2-3,3-4) I should expect a nice improvement at the track. We shall see.
Update 9/20/11: just a quick update (to myself I guess
), I installed my new pulleyt today. I have not had much chance to do a full test but it's a very nice and noticeable improvement. I'm hitting right around 9 psi at WOT so I picked up a little more than 2 psi. The real difference is up top as would be expected. Air/fuel is still around 12 at WOT. I don't have my interface back to log any runs. I was hoping to get to the track this Friday but since I won't have much time to dial in my transmission changes, it might have to wait until next Friday. My but dyno says low 13's at 101-103. If I can dial in the shift points and get some good launches, I'm thinking high 12's are definitely possible.
Last edited by Boober; Sep 20, 2011 at 08:53 PM.
Sep 20, 2011 | 10:21 PM
#165
Update 9/20/11: just a quick update (to myself I guess ), I installed my new pulleyt today. I have not had much chance to do a full test but it's a very nice and noticeable improvement. I'm hitting right around 9 psi at WOT so I picked up a little more than 2 psi. The real difference is up top as would be expected. Air/fuel is still around 12 at WOT. I don't have my interface back to log any runs. I was hoping to get to the track this Friday but since I won't have much time to dial in my transmission changes, it might have to wait until next Friday. My but dyno says low 13's at 101-103. If I can dial in the shift points and get some good launches, I'm thinking high 12's are definitely possible.
), I installed my new pulleyt today. I have not had much chance to do a full test but it's a very nice and noticeable improvement. I'm hitting right around 9 psi at WOT so I picked up a little more than 2 psi. The real difference is up top as would be expected. Air/fuel is still around 12 at WOT. I don't have my interface back to log any runs. I was hoping to get to the track this Friday but since I won't have much time to dial in my transmission changes, it might have to wait until next Friday. My but dyno says low 13's at 101-103. If I can dial in the shift points and get some good launches, I'm thinking high 12's are definitely possible.
Sep 21, 2011 | 12:24 PM
#166
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Joined: Apr 2010
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From: rochester/ fort plain ny
Update 9/20/11: just a quick update (to myself I guess ), I installed my new pulleyt today. I have not had much chance to do a full test but it's a very nice and noticeable improvement. I'm hitting right around 9 psi at WOT so I picked up a little more than 2 psi. The real difference is up top as would be expected. Air/fuel is still around 12 at WOT. I don't have my interface back to log any runs. I was hoping to get to the track this Friday but since I won't have much time to dial in my transmission changes, it might have to wait until next Friday. My but dyno says low 13's at 101-103. If I can dial in the shift points and get some good launches, I'm thinking high 12's are definitely possible.
), I installed my new pulleyt today. I have not had much chance to do a full test but it's a very nice and noticeable improvement. I'm hitting right around 9 psi at WOT so I picked up a little more than 2 psi. The real difference is up top as would be expected. Air/fuel is still around 12 at WOT. I don't have my interface back to log any runs. I was hoping to get to the track this Friday but since I won't have much time to dial in my transmission changes, it might have to wait until next Friday. My but dyno says low 13's at 101-103. If I can dial in the shift points and get some good launches, I'm thinking high 12's are definitely possible.
Sep 21, 2011 | 08:08 PM
#169
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Joined: Feb 2011
Posts: 190
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