Dyno Shocker - Lost Power!! - Page 7

JSH · 10-16-2022, 05:02 PM

Quote:

Originally Posted by ZL1Atlanta

I hope that somehow ends up being it! I know you’ve been working at getting the car to where you want it for a bit.

Yes, this 2650 project started in May. Made 965 in early September. Should have just put the 2.75" on it, then dyno, then put the 112. Going back to a 103 is the next logical step. If it runs good again, pretty much has to be related to the 112 in some way.

gotswap · 10-17-2022, 11:38 AM

Who is your tuner? Might I suggest taking it to CAP if not already there?

JSH · 10-17-2022, 11:52 AM

Quote:

Originally Posted by gotswap

Who is your tuner? Might I suggest taking it to CAP if not already there?

CAP did my ported 1.7L blower and related work last year. When I contacted Cody in May about my 2650 project, he said they were too busy. They were doing Lambos, Vipers, etc.

JSH · 10-17-2022, 11:57 AM

We're going to do a crushed pipe delete kit for $178 + labor just to remove it from the list.

gotswap · 10-17-2022, 12:16 PM

Quote:

Originally Posted by JSH

CAP did my ported 1.7L blower and related work last year. When I contacted Cody in May about my 2650 project, he said they were too busy. They were doing Lambos, Vipers, etc.

UGH!!! guess that's what happens. add McClarens to the list

ZLE dude · 10-17-2022, 12:59 PM

Just hypothetically speaking here, if you made 965 with the crushed pipe section, EVEN if it was an issue, you wouldn't lose 100 hp because you enlarged your inlet, you'd just stop making gains due to the restriction on the back end. Go ahead and remove it though and we shall see. This whole thread has peaked my interest.

JSH · 10-29-2022, 08:35 AM

Update:
It made 965 in Sept. with a 103mm and 3" upper. We put a 112 and 2.75 on it on 10/12 and were shocked that it got to 850 at 5800 and rolled over badly.

We installed Hookers' crushed pipe delete yesterday morning and put it on that same dyno and it made 906h/908t (hp was 100 higher than torque last time). But the tune or something else is way off. The shop did not log yesterday's pulls (!)

I drove it home and parked it, so I can figure out a course of action

Gunkk · 10-29-2022, 09:26 AM

No logs?

Now you're just trollin us

JSH · 10-29-2022, 11:12 AM

Quote:

Originally Posted by Gunkk

No logs?

I'm serious. I've asked and they say, "No logs." Why/how would you spend several hours on the dyno adjusting the tune and yet create no logs? He only made one pull yesterday and said his laptop had crashed (?)

It's obvious I need a new shop/tuner.

And, how does torque go up 38 and hp go down 60? Now that ain't right

Z OH 6 · 10-29-2022, 12:12 PM

Quote:

Originally Posted by JSH

I'm serious. I've asked and they say, "No logs." Why/how would you spend several hours on the dyno adjusting the tune and yet create no logs? He only made one pull yesterday and said his laptop had crashed (?)

It's obvious I need a new shop/tuner.

And, how does torque go up 38 and hp go down 60? Now that ain't right

He doesn't want to provide you any logs because he's worried you will share them and come back with advice for what he should be doing. Clearly he thinks he's tuned the car properly and doesn't want to hear anything from anyone else.

JSH · 10-29-2022, 12:49 PM

Quote:

Originally Posted by Z OH 6

He doesn't want to provide you any logs because he's worried you will share them and come back with advice for what he should be doing. Clearly he thinks he's tuned the car properly and doesn't want to hear anything from anyone else.

I don't think so. I passed along some of the comments here including King's SOI advance comments, and, without any comment, he said he made those tune edits.

Z OH 6 · 10-29-2022, 03:09 PM

Quote:

Originally Posted by JSH

I don't think so. I passed along some of the comments here including King's SOI advance comments, and, without any comment, he said he made those tune edits.

So you have a better explanation for not having any logs? I sure can't think of any. So what is his explanation for the lost power now that the crushed pipe was resolved and didn't fix the issue?

JSH · 10-29-2022, 03:34 PM

Quote:

Originally Posted by Z OH 6

So you have a better explanation for not having any logs? I sure can't think of any. So what is his explanation for the lost power now that the crushed pipe was resolved and didn't fix the issue?

He charged me for 2 hours dyno time, so he obviously edited the tune based on logs.

It made a road log today and it's got more boost, more MAP, no neg. advance, tons of fuel pressure, low MAT, etc. so ?

"It made 50 more hp than it did before we did the crushed pipe delete"

One of the issues now is that 965 dyno is a DynoJet and the 906 dyno is a Mustang, so we're all jacked up now. Worse yet, the Dynojet is a three-hour round-trip drive, so that's out for me. Need to find a local Dynojet.

JSH · 10-29-2022, 04:57 PM

What should I change the throttle body scalar to in HPT (from 103 to 112mm)?

10-17-2022, 11:38 AM	#86
gotswap Drives: 2019 ZL1 Crush Join Date: Jan 2019 Location: Colorado Springs Posts: 564	Who is your tuner? Might I suggest taking it to CAP if not already there? __________________ 2019 Crush A10 E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter.

10-17-2022, 11:57 AM	#88
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,567	We're going to do a crushed pipe delete kit for $178 + labor just to remove it from the list. __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

10-17-2022, 12:59 PM	#90
ZLE dude Drives: '18 ZL1 1LE Join Date: May 2020 Location: KY Posts: 219	Just hypothetically speaking here, if you made 965 with the crushed pipe section, EVEN if it was an issue, you wouldn't lose 100 hp because you enlarged your inlet, you'd just stop making gains due to the restriction on the back end. Go ahead and remove it though and we shall see. This whole thread has peaked my interest. __________________ 2018 ZL1 1LE - Summit White, PDR, Rotofab CAI, 95mm TB, CSP 2" catless LT's, JMS Voltage Booster, AEM X-series WB, DSX flex fuel sensor, Banks Data Monster, Tuned by Ted Jannetty, 5% Tint, Blackvue DR900S-2CH, Diode Dynamics lighting, IGL Kenzo ceramic coating

10-29-2022, 08:35 AM	#91
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,567	Update: It made 965 in Sept. with a 103mm and 3" upper. We put a 112 and 2.75 on it on 10/12 and were shocked that it got to 850 at 5800 and rolled over badly. We installed Hookers' crushed pipe delete yesterday morning and put it on that same dyno and it made 906h/908t (hp was 100 higher than torque last time). But the tune or something else is way off. The shop did not log yesterday's pulls (!) I drove it home and parked it, so I can figure out a course of action __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

10-29-2022, 04:57 PM	#98
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,567	What should I change the throttle body scalar to in HPT (from 103 to 112mm)? __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

10-29-2022, 09:26 AM	#92
Gunkk Thank you Al Oppenheiser! Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017 Location: Sarasota, FL Posts: 4,985 View My Garage	No logs? Now you're just trollin us

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