How to get throttle body to open fully at launch? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

silversleeper · 10-06-2018, 08:28 PM

I did a short WOT log. I was mostly looking how low my fuel pressure would drop with e85 I think is about e60 in the tank now. I have the JMS BAP not yet installed. As we knew e85 requires more pump. I'll see if BAP is enough I'm dropping down to 41psi at 8lbs boost (IDK why I don't get more boost with CAI). I didn't pulley up yet until I get the fuel pressure sorted out.
I was getting lots of wheel spin and started getting sideways at initial WOT. I see the drop in throttle opening and timing. I think that was at the shift.

RobZL1 · 10-06-2018, 09:19 PM

OP- this is probably a dumb question, but are we talking about a 5th gen camaro here? The reason I ask is based on your avatar into. Are we talking about a C7?

Bolt-onC6 · 10-07-2018, 05:28 AM

Quote:

Originally Posted by RobZL1

OP- this is probably a dumb question, but are we talking about a 5th gen camaro here? The reason I ask is based on your avatar into. Are we talking about a C7?

I do have a 2017 C7 Z06. Should be the same tune criteria for tb opening. I have asked the Corvette guys but nobody over there seems to know how to fix this.

RobZL1 · 10-07-2018, 06:35 AM

Ahhhhhh. I think that explains it. You'll probably need to do some reading on driver demand and torque-based tuning. I'm not an expert by any means, but an e92 controller works a lot differently than an e38 or e67 as I understand it.

Bolt-onC6 · 10-07-2018, 07:13 AM

I've done a lot of reading and made some changes from what I have read. DD does get it open sooner but with a lot of knock retard. I'm running Boostane so it should not be too low octane fuel.

I thought the ZL1 had the e92 controller. At least in the newer.

xc_SS/RS · 10-07-2018, 08:47 AM

Quote:

Originally Posted by Bolt-onC6

Here's my results. With traction control on and off. Appears to be about the same. Initially 100% throttle then dropping before going 100% again at about 33 mph. And this was in 4th gear paddle starting about 20-22 mph. And as it hits 100% timing advance drops.

The files won't download so if anybody wants to see them post or PM me your email address.

Bryan, I added Commanded Throttle Actuator just so I see 100% and compare it to Throttle Position. Don't know why they read differently.

Have you disabled all torque management? Doing my own tuning as well so this has me curious. Mine goes open right away too from what I can remember from my logs

Post up a datalog and tune if you can.

Oh, what mods, if any, have you done?

RobZL1 · 10-07-2018, 08:53 AM

Yeah, if you bounce over the the camaro6 side of the forum, you might find someone with experience (or the hptuners forum, for sure)

Bolt-onC6 · 10-07-2018, 09:59 AM

Quote:

Originally Posted by xc_SS/RS

Have you disabled all torque management? Doing my own tuning as well so this has me curious. Mine goes open right away too from what I can remember from my logs

Post up a datalog and tune if you can.

Oh, what mods, if any, have you done?

Have not disabled all TM. Can't even get into the tranny file without sending it to HPT to unlock. I ran a 10.48@132.x mph before I put my overdrive crank pulley on but I also have a BMS filter, ported tb, catless pipe and my tune. If I can get some cooler air I think it should run a tenth or two better. My street logs show more power.
Tried to post the log but the site wouldn't let me.

Quote:

Originally Posted by RobZL1

Yeah, if you bounce over the the camaro6 side of the forum, you might find someone with experience (or the hptuners forum, for sure)

I'll give them a try. Thanks...

silversleeper · 10-07-2018, 12:38 PM

when you post hit the paperclip then browse for file.

Bolt-onC6 · 10-07-2018, 01:10 PM

Quote:

Originally Posted by silversleeper

when you post hit the paperclip then browse for file.

Can't download a csv or hpl file. Invalid files.

SecondZ28 · 10-08-2018, 10:14 PM

Quote:

Originally Posted by Bolt-onC6

I thought the ZL1 had the e92 controller.

Gen 5 ZL1 has E67

10-06-2018, 08:28 PM	#15
silversleeper Big Crow Drives: '13 ZL1 Join Date: Mar 2017 Location: California Posts: 1,486	I did a short WOT log. I was mostly looking how low my fuel pressure would drop with e85 I think is about e60 in the tank now. I have the JMS BAP not yet installed. As we knew e85 requires more pump. I'll see if BAP is enough I'm dropping down to 41psi at 8lbs boost (IDK why I don't get more boost with CAI). I didn't pulley up yet until I get the fuel pressure sorted out. I was getting lots of wheel spin and started getting sideways at initial WOT. I see the drop in throttle opening and timing. I think that was at the shift. Attached Images

10-06-2018, 09:19 PM	#16
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	OP- this is probably a dumb question, but are we talking about a 5th gen camaro here? The reason I ask is based on your avatar into. Are we talking about a C7? __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

10-07-2018, 06:35 AM	#18
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	Ahhhhhh. I think that explains it. You'll probably need to do some reading on driver demand and torque-based tuning. I'm not an expert by any means, but an e92 controller works a lot differently than an e38 or e67 as I understand it. __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

10-07-2018, 08:53 AM	#21
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	Yeah, if you bounce over the the camaro6 side of the forum, you might find someone with experience (or the hptuners forum, for sure) __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

10-07-2018, 07:13 AM	#19
Bolt-onC6 Drives: 2017 Corvette Join Date: Jul 2011 Location: Texas Posts: 258	I've done a lot of reading and made some changes from what I have read. DD does get it open sooner but with a lot of knock retard. I'm running Boostane so it should not be too low octane fuel. I thought the ZL1 had the e92 controller. At least in the newer.

10-07-2018, 12:38 PM	#23
silversleeper Big Crow Drives: '13 ZL1 Join Date: Mar 2017 Location: California Posts: 1,486	when you post hit the paperclip then browse for file.