Puzzled but got some work to do on my ET's - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

AZ-ZL1 · 03-10-2014, 10:39 AM

Track prep was flawless. DA +600. Temps in the 60's. Heat soak not an issue with 1 hr between runs. I know I've got the power to break in the 10's, just need to figure out if it's seat time or possibly a re-tune. 1st run was "cautious" and just to get a feel. 2nd run ( my best) was in the right lane which seemed to be faster for everyone. 3rd run was when I really felt I nailed it and ended up with a disappointing 11.44. We'll try again on 3/21.

Edit/add: running MT Drag radials

hognutz · 03-10-2014, 12:13 PM

you mph seem low for your mods. are you getting any knock retard or are you IAT2's getting out of line at all to pull timing????

are all the nannies off in the runs IE hold T/C down for 7 seconds?

you have 10 second mods no doubt about it.

with you mods list I would expect trap speed aproaching 130mph.

mrvenicess · 03-10-2014, 01:43 PM

You should be in the 10s. I have headers, 2.55 upper, ID850s, roto fab and M/T drs and I have a best of 11.168 @ 123.32 and if the weather cools down this Thurs night am hoping for high 10s.

Stephen12ZL1 · 03-10-2014, 03:23 PM

get your 60' down...make sure you are launching in "S mode" with the gear selector in "M". Do not use the paddles. Make sure you weren't launching in "D". D starts in 2nd gear. Otherwise...get your tune checked as well. 1.78 is o.k. but it should be in the mid/low 1.6s on drag radials.

alssiri · 03-10-2014, 11:26 PM

You should be in high 10's easy with your mods, i ran 10.846@129 my 60' was1.69 on M/T 20's & that was my 2nd time to the track.

Quote:

Originally Posted by hognutz

you mph seem low for your mods. are you getting any knock retard or are you IAT2's getting out of line at all to pull timing????

are all the nannies off in the runs IE hold T/C down for 7 seconds?

you have 10 second mods no doubt about it.

with you mods list I would expect trap speed aproaching 130mph.

(hognutz) maybe right about the high IAT2 cause i had same issue with heat soak on my first track time when my RX SuperChiller screwed my AC Compressur.

Ahmad

AZ-ZL1 · 03-11-2014, 10:28 AM

Yes, nannies off and launching in S mode. Going to have tuner check my shift points and rpm. Had a couple of people mention my 330 should be faster and may be shifting to soon. With an hour between passes and ambient in the 60's, I don't believe temps were an issue.

Thanks

tnspd · 03-11-2014, 12:08 PM

You may want to see what your temp was if you were logging data. If not then be mindful of your temperature. If you set too long in line running then you just build up heat and that pulls timing.

Drew P · 03-12-2014, 08:04 AM

You have very similar setup, but with heads and headers. Should be shifting around 6500 to take full advantage of heads/cam. You may also want to have your tuner plug his laptop in and check your shift times while driving. Once i crossed the 600rwhp mark, my shift times under WOT were above 600ms. Want those between 200-300ms optimally. Tuning the autos takes some knowledge. So make sure your guy knows how.

wirebender · 03-12-2014, 08:56 AM

From experience I know that my weight and the weight of the amount of gas in the tank can also be an issue as far as reducing ETs.

AZ-ZL1 · 03-14-2014, 07:56 PM

Got with the Tuner today and back on the Dyno.

So much for all the statements that "belt slip is not an issue anymore."

At 6100 rpm my boost dropped from 15 to 11...oops, there goes the horsepower, trap speed and ET's. It is the correct belt and with only 2500 miles on the build....??

Now to get with Lingenfelter for solutions...new idler, smaller belt. We'll see.

At least I know.

hognutz · 03-15-2014, 03:03 PM

at least you know now.

here is a chart that has been posted in the past. I think the 9.1 ring can cause some issue. lists the belt they recomend as well.

AZ-ZL1 · 03-15-2014, 04:28 PM

Thanks Hognutz...You da Man !!!

I have the 68" belt installed... and with the LPE bracket used, I need the 67".

Thanks, should be "Problem solved".

Dyno numbers should go up significantly and I should be able to pick up a 1/2 second or more and much more consistent times.

hognutz · 03-15-2014, 05:26 PM

yeah you get that slip fixed and it should pull way better on the big end. I thought originally you numbers should have been 670ish looking at that mod list but dyno numbers are so all over the place.

I have been thinking about adding that dashtronix thing to get my boost displayed up in the hud as it basically death to try to look at your boost numbers at speed in this car ha ha.

Drew P · 03-17-2014, 07:35 AM

Once you get your pulleys figured out, spend the money and buy a Gates "green" (commercial grade) belt. Much better grip.

03-10-2014, 12:13 PM	#2
hognutz Drives: 2013 ZL1 Join Date: Oct 2011 Location: tangent or Posts: 2,984	you mph seem low for your mods. are you getting any knock retard or are you IAT2's getting out of line at all to pull timing???? are all the nannies off in the runs IE hold T/C down for 7 seconds? you have 10 second mods no doubt about it. with you mods list I would expect trap speed aproaching 130mph. __________________ shopping for 2017+1le or zl1 2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned

03-10-2014, 03:23 PM	#4
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	get your 60' down...make sure you are launching in "S mode" with the gear selector in "M". Do not use the paddles. Make sure you weren't launching in "D". D starts in 2nd gear. Otherwise...get your tune checked as well. 1.78 is o.k. but it should be in the mid/low 1.6s on drag radials. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

03-11-2014, 10:28 AM	#6
AZ-ZL1 Dry Heat My @ss Drives: 2012 ZL1 SUMMIT WHITE Join Date: Mar 2012 Location: Chandler, Arizona Posts: 758	Yes, nannies off and launching in S mode. Going to have tuner check my shift points and rpm. Had a couple of people mention my 330 should be faster and may be shifting to soon. With an hour between passes and ambient in the 60's, I don't believe temps were an issue. Thanks __________________ 2012 #1765: Xpel Clear Bra, 15% Tint, M2W, LPE GT9 Cam, Ported Heads & Snout, Upgraded Valve Train, 90mm TB, LPE Dual Fan HX, 2.55 Upper, 9.1 Lower (18%), Id850's, KB BAP, Roto-fab CAI, AR Stainless Headers, 673 rwhp, A6, Nothin but Fun!

03-11-2014, 12:08 PM	#7
tnspd Drives: 18 Camaro ZL1 1LE (WILSON) Join Date: Jul 2009 Location: N.C. Posts: 1,340	You may want to see what your temp was if you were logging data. If not then be mindful of your temperature. If you set too long in line running then you just build up heat and that pulls timing. __________________ Camaro South Hot Cars and Hospitality on FB camarosouth@hotmail.com

03-12-2014, 08:04 AM	#8
Drew P Drives: Camaro ZL1 Join Date: May 2012 Location: Houston Posts: 233	You have very similar setup, but with heads and headers. Should be shifting around 6500 to take full advantage of heads/cam. You may also want to have your tuner plug his laptop in and check your shift times while driving. Once i crossed the 600rwhp mark, my shift times under WOT were above 600ms. Want those between 200-300ms optimally. Tuning the autos takes some knowledge. So make sure your guy knows how. __________________ 2012 A6 Coupe 630RWHP 10.93@125 Mods: ID850 Injectors; D3PE HX, Reservoir & Atmospheric Catch-Can; LPE 2.55 Upper & 9.1 Lower Pulleys w/ ATI Damper; LPE Idler Pulley Relocation Bracket; "Green" Serp. Belt; Cat delete;ADM Exhaust Override; Magnaflow X-Pipe Muffler (in addition to stock mufflers); Cold Air Inductions CAI; 160 thermostat; LS9 Isolator; Port/polish snout and intake runners; LPE GT9 camshaft with dual springs and titanium retainers; Kenne Bell BAP, Install and Engine Tune by Serious Hp; Fab work by D3 Performance Engineering; Trans Tune by Keith; Coming Soon: Flex Fuel Conversion.

03-10-2014, 01:43 PM	#3
mrvenicess Drives: 2013 CRT ZL1 auto Join Date: May 2010 Location: Venice Fl Posts: 1,443 View My Garage	You should be in the 10s. I have headers, 2.55 upper, ID850s, roto fab and M/T drs and I have a best of 11.168 @ 123.32 and if the weather cools down this Thurs night am hoping for high 10s.

03-12-2014, 08:56 AM	#9
wirebender Drives: 2017 ZL1, A10, White, sunroof, nav Join Date: Apr 2009 Location: Garner, NC Posts: 720 View My Garage	From experience I know that my weight and the weight of the amount of gas in the tank can also be an issue as far as reducing ETs.

03-14-2014, 07:56 PM	#10
AZ-ZL1 Dry Heat My @ss Drives: 2012 ZL1 SUMMIT WHITE Join Date: Mar 2012 Location: Chandler, Arizona Posts: 758	Got with the Tuner today and back on the Dyno. So much for all the statements that "belt slip is not an issue anymore." At 6100 rpm my boost dropped from 15 to 11...oops, there goes the horsepower, trap speed and ET's. It is the correct belt and with only 2500 miles on the build....?? Now to get with Lingenfelter for solutions...new idler, smaller belt. We'll see. At least I know. __________________ 2012 #1765: Xpel Clear Bra, 15% Tint, M2W, LPE GT9 Cam, Ported Heads & Snout, Upgraded Valve Train, 90mm TB, LPE Dual Fan HX, 2.55 Upper, 9.1 Lower (18%), Id850's, KB BAP, Roto-fab CAI, AR Stainless Headers, 673 rwhp, A6, Nothin but Fun!

03-15-2014, 03:03 PM	#11
hognutz Drives: 2013 ZL1 Join Date: Oct 2011 Location: tangent or Posts: 2,984	at least you know now. here is a chart that has been posted in the past. I think the 9.1 ring can cause some issue. lists the belt they recomend as well. __________________ shopping for 2017+1le or zl1 2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned Last edited by hognutz; 03-15-2014 at 05:22 PM.

03-15-2014, 04:28 PM	#12
AZ-ZL1 Dry Heat My @ss Drives: 2012 ZL1 SUMMIT WHITE Join Date: Mar 2012 Location: Chandler, Arizona Posts: 758	Thanks Hognutz...You da Man !!! I have the 68" belt installed... and with the LPE bracket used, I need the 67". Thanks, should be "Problem solved". Dyno numbers should go up significantly and I should be able to pick up a 1/2 second or more and much more consistent times. __________________ 2012 #1765: Xpel Clear Bra, 15% Tint, M2W, LPE GT9 Cam, Ported Heads & Snout, Upgraded Valve Train, 90mm TB, LPE Dual Fan HX, 2.55 Upper, 9.1 Lower (18%), Id850's, KB BAP, Roto-fab CAI, AR Stainless Headers, 673 rwhp, A6, Nothin but Fun!

03-15-2014, 05:26 PM	#13
hognutz Drives: 2013 ZL1 Join Date: Oct 2011 Location: tangent or Posts: 2,984	yeah you get that slip fixed and it should pull way better on the big end. I thought originally you numbers should have been 670ish looking at that mod list but dyno numbers are so all over the place. I have been thinking about adding that dashtronix thing to get my boost displayed up in the hud as it basically death to try to look at your boost numbers at speed in this car ha ha. __________________ shopping for 2017+1le or zl1 2009 CTS-V -sold 2015 Hellcat-sold 2013 ZL1 -sold 2007 Z06- sold 2014 Chrysler 300 2011 Duramax 8" lift, deleted tuned

03-17-2014, 07:35 AM	#14
Drew P Drives: Camaro ZL1 Join Date: May 2012 Location: Houston Posts: 233	Once you get your pulleys figured out, spend the money and buy a Gates "green" (commercial grade) belt. Much better grip. __________________ 2012 A6 Coupe 630RWHP 10.93@125 Mods: ID850 Injectors; D3PE HX, Reservoir & Atmospheric Catch-Can; LPE 2.55 Upper & 9.1 Lower Pulleys w/ ATI Damper; LPE Idler Pulley Relocation Bracket; "Green" Serp. Belt; Cat delete;ADM Exhaust Override; Magnaflow X-Pipe Muffler (in addition to stock mufflers); Cold Air Inductions CAI; 160 thermostat; LS9 Isolator; Port/polish snout and intake runners; LPE GT9 camshaft with dual springs and titanium retainers; Kenne Bell BAP, Install and Engine Tune by Serious Hp; Fab work by D3 Performance Engineering; Trans Tune by Keith; Coming Soon: Flex Fuel Conversion.