Just another build thread. - Page 7 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

C@mero · 05-27-2020, 07:22 PM

Quote:

Originally Posted by RupertPupkin

Might be picking up the car tomorrow.... Hold for updates.

Good to hear OP.

RupertPupkin · 05-28-2020, 02:58 PM

Car made 730rwhp. Doing some more revisions to see if we can squeeze more out of it. Seems kind of low, but it is just numbers.

Thoughts?

RupertPupkin · 05-28-2020, 03:41 PM

737/635

Dyno graph.
Attachment 1033515

racesloth · 05-28-2020, 03:45 PM

737 - Not too shabby...

Valkyrie14 · 05-28-2020, 03:48 PM

737! Way to go.

RupertPupkin · 05-28-2020, 04:00 PM

Quote:

Originally Posted by racesloth

737 - Not too shabby...

Quote:

Originally Posted by Valkyrie14

737! Way to go.

Thanks. Was shooting 800....but... I’m happy. Picked up 300 to the wheel.

Seems like there’s belt slip or spark issues up top.

racesloth · 05-28-2020, 04:01 PM

Hey, you are making more than my YSi setup. I am having real belt slip issues...

RupertPupkin · 05-28-2020, 04:09 PM

What can I do to relieve the belt issue? Swap it to a 10 rib, cog? Cog might be too extreme

stevieturbo · 05-28-2020, 04:50 PM

Quote:

Originally Posted by RupertPupkin

What can I do to relieve the belt issue? Swap it to a 10 rib, cog? Cog might be too extreme

Depends what's causing it in the first place.

Belt routing ? What tensioner and arrangement ? What belt ? What rib at present ?

Belts stretch huge amounts under load, so you need a very good belt, and whatever belt is used, you need it to pretty much a very tight fit right from the word go, ie, tensioner at full stop, to give it all the best chance of keeping it in tension as the belt stretches.

eLeSthree · 05-28-2020, 08:08 PM

Quote:

Originally Posted by RupertPupkin

What can I do to relieve the belt issue? Swap it to a 10 rib, cog? Cog might be too extreme

What gives you the impression the belt is slipping? How much boost is it making?

If you have a way to log boost vs rpm it will tell you if you’re seeing slip.

They dyno chart looks wierd up top. Whats the fuel pressure doing during a run? Is this on e85? Do you know how much timing was used?

RupertPupkin · 05-28-2020, 08:19 PM

Quote:

Originally Posted by eLeSthree

What gives you the impression the belt is slipping? How much boost is it making?

If you have a way to log boost vs rpm it will tell you if you’re seeing slip.

They dyno chart looks wierd up top. Whats the fuel pressure doing during a run? Is this on e85? Do you know how much timing was used?

Boost was only around 11-12lbs.

93 octane timing around 19*. And e85 is around 25*

It’s tuned in 93 and e85.

Bt skipping was more on an assumption, and was suggested on another thread.

What info should I ask Juiced for?

RobZL1 · 05-28-2020, 08:34 PM

See if they have a plot of boost they can add to the bottom of that chart. Something weird is definitely going on up top, especially since it's already shown with a curve-smoothing factor of 5...

My guess is either belt slip or clutch slip. Boost should rise smoothly and constantly in your case. To see if it's clutch slip, you can look at a plot of RPM/MPH vs RPM. It should be a straight, and slightly decreasing line.

If either plot is screwy, you'll know your culprit (or you can rule those out if they look good).

eLeSthree · 05-28-2020, 09:13 PM

Id ask where the boost is. Is that the new RXT im there already?

RupertPupkin · 05-28-2020, 10:14 PM

Quote:

Originally Posted by RobZL1

See if they have a plot of boost they can add to the bottom of that chart. Something weird is definitely going on up top, especially since it's already shown with a curve-smoothing factor of 5...

My guess is either belt slip or clutch slip. Boost should rise smoothly and constantly in your case. To see if it's clutch slip, you can look at a plot of RPM/MPH vs RPM. It should be a straight, and slightly decreasing line.

If either plot is screwy, you'll know your culprit (or you can rule those out if they look good).

Did tighten the tensioner, smoothed it out a little bit. Did some highway pulls, and nothing out of the ordinary popped up, or felt different.

Quote:

Originally Posted by eLeSthree

Id ask where the boost is. Is that the new RXT im there already?

No, still on the stock clutch.

05-28-2020, 02:58 PM	#86
RupertPupkin Drives: 2014 Camaro SS 1Le Join Date: Feb 2016 Location: IL Posts: 1,603	Car made 730rwhp. Doing some more revisions to see if we can squeeze more out of it. Seems kind of low, but it is just numbers. Thoughts? __________________ 2014 SS 1LE Money Pit/ Forged 402 CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq Last edited by RupertPupkin; 05-28-2020 at 03:16 PM.

05-28-2020, 03:41 PM	#87
RupertPupkin Drives: 2014 Camaro SS 1Le Join Date: Feb 2016 Location: IL Posts: 1,603	737/635 Dyno graph. Attachment 1033515 __________________ 2014 SS 1LE Money Pit/ Forged 402 CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq Last edited by RupertPupkin; 05-28-2020 at 03:59 PM.

05-28-2020, 03:45 PM	#88
racesloth Dan Drives: 2010 Camaro 2SS IOM Join Date: Nov 2013 Location: Georgia, USA not the other one Posts: 1,041	737 - Not too shabby... __________________ Dan 2010 IOM SS YSI-B, Pat G Cam, Ported CTS-V Heads, ARH LTs MBRP 3" exhaust http://www.camaro5.com/forums/showth...&highlight=ysi

05-28-2020, 03:48 PM	#89
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	737! Way to go. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

05-28-2020, 04:01 PM	#91
racesloth Dan Drives: 2010 Camaro 2SS IOM Join Date: Nov 2013 Location: Georgia, USA not the other one Posts: 1,041	Hey, you are making more than my YSi setup. I am having real belt slip issues... __________________ Dan 2010 IOM SS YSI-B, Pat G Cam, Ported CTS-V Heads, ARH LTs MBRP 3" exhaust http://www.camaro5.com/forums/showth...&highlight=ysi

05-28-2020, 04:09 PM	#92
RupertPupkin Drives: 2014 Camaro SS 1Le Join Date: Feb 2016 Location: IL Posts: 1,603	What can I do to relieve the belt issue? Swap it to a 10 rib, cog? Cog might be too extreme __________________ 2014 SS 1LE Money Pit/ Forged 402 CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq

05-28-2020, 08:34 PM	#96
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	See if they have a plot of boost they can add to the bottom of that chart. Something weird is definitely going on up top, especially since it's already shown with a curve-smoothing factor of 5... My guess is either belt slip or clutch slip. Boost should rise smoothly and constantly in your case. To see if it's clutch slip, you can look at a plot of RPM/MPH vs RPM. It should be a straight, and slightly decreasing line. If either plot is screwy, you'll know your culprit (or you can rule those out if they look good). __________________ 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

05-28-2020, 09:13 PM	#97
eLeSthree Drives: 2011 Camaro SS 6sp Join Date: Nov 2016 Location: Drivers Seat Posts: 1,904	Id ask where the boost is. Is that the new RXT im there already? __________________ 2011 Camaro SS---SOLD TMS Dart 427 FED M311s, ESS Tuning G4 Blower, DSX Triple FP Assembly, DSX FF, FIC1300, Mcleod RXT 1200HD, Edlebrock Pro Flo XT 1158whp 1017wtq. 2010 CTS-V A6 - "Stock" SOLD 630whp 658wtq 2024 F-150 RCSB 5.0 4x4 waiting for tunes...