Zl1 Twin turbo late spool - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

fofoss016 · 09-21-2018, 09:52 AM

Hello
I have a problem in my car which the turbos will not spool up before the end of the gear even with brake-boosting, we’ve checked everything on the car literally, and theres no leak whatsoever. it was more lag the power it came after 5000 rpm

Turbo size : 62/62 agp
Btr stage 2 TT cam
wisco -11 dish 4.070 piston
TSP rod 6.125
Double nozzle AEM meth
LSA Stock Head
3 inch exhaust ( stock ZL1 Muffler )
the car put on 15.5 psi 827 rwhp 721rwtq

blake-b · 09-21-2018, 10:21 AM

What A/R are the turbos?

AGP Turbo · 09-21-2018, 11:21 AM

Non loaded dyno, couple second pulls don't work for turbo cars.

fofoss016 · 09-21-2018, 12:05 PM

Quote:

Originally Posted by blake-b

What A/R are the turbos?

.82 a/r

fofoss016 · 09-21-2018, 12:10 PM

Quote:

Originally Posted by AGP Turbo

Non loaded dyno, couple second pulls don't work for turbo cars.

I am not use the load

The car was no spool on the street and dyno

dreksnot · 09-21-2018, 12:59 PM

What is the boost in the data log show for the pull? The dyno plot doesn't look abnormal to me, with a smooth curve, and an expected result.

fofoss016 · 09-21-2018, 06:29 PM

Quote:

Originally Posted by dreksnot

What is the boost in the data log show for the pull? The dyno plot doesn't look abnormal to me, with a smooth curve, and an expected result.

15.8 is the boost level, car doesn’t pull strong once you floor it on the street and doesn’t show any boost until 5k RPM, tried 21 PSI with some C16 and 5 extra degrees of timing on the dyno, it only made 890WHP which is pretty low.

dreksnot · 09-21-2018, 08:07 PM

Quote:

Originally Posted by fofoss016

15.8 is the boost level, car doesn’t pull strong once you floor it on the street and doesn’t show any boost until 5k RPM, tried 21 PSI with some C16 and 5 extra degrees of timing on the dyno, it only made 890WHP which is pretty low.

What I meant about boost in the data log was when do you see the boost start and how fast does it occur? Not asking for what the full boost is - am asking how the boost comes on, and the data log could show that. So far, I'm leaning toward the tune and dyno; but the data log could tell a lot about what's happening. Got a pull graph of it?

hillshooter · 09-22-2018, 01:46 PM

pull the exhaust off and try again.

Moreair1 · 09-22-2018, 03:33 PM

I would agree with dreksnot, tune would be my first guess

fofoss016 · 09-24-2018, 02:41 AM

Quote:

Originally Posted by hillshooter

pull the exhaust off and try again.

with out x pipe ?

hillshooter · 09-24-2018, 10:31 AM

Quote:

Originally Posted by fofoss016

with out x pipe ?

yeah, thats how mine is.

RealQuick · 10-06-2018, 10:10 PM

I had lag issues when I had spark issues (burnt plug wires).

fofoss016 · 10-08-2018, 03:16 AM

Quote:

Originally Posted by RealQuick

I had lag issues when I had spark issues (burnt plug wires).

what is the spark you use ?

09-21-2018, 09:52 AM	#1
fofoss016 Drives: ZL1 Join Date: Mar 2018 Location: KSA Posts: 15	Zl1 Twin turbo late spool Hello I have a problem in my car which the turbos will not spool up before the end of the gear even with brake-boosting, we’ve checked everything on the car literally, and theres no leak whatsoever. it was more lag the power it came after 5000 rpm Turbo size : 62/62 agp Btr stage 2 TT cam wisco -11 dish 4.070 piston TSP rod 6.125 Double nozzle AEM meth LSA Stock Head 3 inch exhaust ( stock ZL1 Muffler ) the car put on 15.5 psi 827 rwhp 721rwtq Attached Images

09-21-2018, 12:59 PM	#6
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,603 View My Garage	What is the boost in the data log show for the pull? The dyno plot doesn't look abnormal to me, with a smooth curve, and an expected result. __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

09-22-2018, 01:46 PM	#9
hillshooter Drives: 2015 Camaro SS commemorative Join Date: May 2015 Location: Utah Posts: 425	pull the exhaust off and try again. __________________ 2015 Camaro SS, LS3 Stroker, PRC heads,CUSTOM CAM. AGP 68/68 with custom Hot and Cold side. Fore triple pumps, Holley terminator X. BMR drag suspension with carlyle brake kit. 15" ET drags and 17" skinnies. ZL1 3.73 gears , aluminum driveshaft. TH400 with circle D converter.

09-22-2018, 03:33 PM	#10
Moreair1 Drives: 2011 ss convertible Join Date: Jul 2015 Location: Colorado Posts: 1,329 View My Garage	I would agree with dreksnot, tune would be my first guess __________________ Cai intake and a few other mods😎

09-21-2018, 10:21 AM	#2
blake-b Drives: 2009 ZR1 Join Date: May 2010 Location: KCMO Posts: 3,205	What A/R are the turbos?

09-21-2018, 11:21 AM	#3
AGP Turbo Drives: All things Turbocharged Join Date: Dec 2010 Location: AZ Posts: 1,199	Non loaded dyno, couple second pulls don't work for turbo cars.

10-06-2018, 10:10 PM	#13
RealQuick Drives: 2010 Camaro 2SS M6 - Intake/Exhaust Join Date: Sep 2014 Location: Bridgewater Posts: 693	I had lag issues when I had spark issues (burnt plug wires).