Magnuson LT4 2650 - Page 7

SienarSystems · 11-15-2019, 10:01 AM

Nice!!! That engine bay looks familiar

swisstyphoon · 11-15-2019, 10:17 AM

Quote:

Originally Posted by SienarSystems

Nice!!! That engine bay looks familiar

Is that yours? Hope you don't mind, found it on google pics...

*radz28* · 11-15-2019, 11:09 AM

CSP has a couple recent 2650 videos posted showing some interesting information.

SienarSystems · 11-15-2019, 01:15 PM

Yes, I was the CARB certification test. No worries...post away...love the picture and my Maggie!

swisstyphoon · 11-15-2019, 02:33 PM

Quote:

Originally Posted by SienarSystems

Yes, I was the CARB certification test. No worries...post away...love the picture and my Maggie!

Cool!

Would love to install one also, I have to start saving!

Gunkk · 12-05-2019, 08:13 AM

Quote:

Originally Posted by swisstyphoon

Just came up with this meme.. lol

Good one!

JANNETTYRACING · 12-05-2019, 12:11 PM

Just finished another one

https://www.facebook.com/jannettyrac...5606504085606/

SienarSystems · 12-07-2019, 02:29 PM

Man...you’re killing me Ted. I’m still considering the parts we discussed. Crazy question for Greg, Mike or Ted. Could I simply (relatively speaking) change the pulley and belt and retune for more power and keep the stock exhaust, throttle body and airbox?

laynlo15 · 12-07-2019, 03:03 PM

Yes, you have a very mild tune I forgot which pulley your running, but your on pretty low boost if I remember correctly

swisstyphoon · 12-08-2019, 11:48 AM

Quote:

Originally Posted by SienarSystems

Man...you’re killing me Ted. I’m still considering the parts we discussed. Crazy question for Greg, Mike or Ted. Could I simply (relatively speaking) change the pulley and belt and retune for more power and keep the stock exhaust, throttle body and airbox?

That's what I would like to do also, because of the really strict emission laws over here...
Limiting factor are the stock cats, I don't think the stock intake is bad at all. Maybe just swap the filter to a green filter..

*radz28* · 12-08-2019, 02:54 PM

It sounds like 700 RWHP is getting close to the limit on OEM exhaust. The cats' start restricting flow, then causing heat to build-up, and then detonation starts to occur and you have to start killing timing; or something along those lines. Maybe if you're only going down the strip it's not too bad, but if you're into the throttle for very long, OEM exhaust is going to bite you - the manifolds and cats' that is. CSP tested an AFE 3" CB and literally only lost a couple horses at about 800-plus RWHP. The stock suitcase isn't the problem (those pinches in the pipes below the diff' aren't either).

KingLT1 · 12-08-2019, 02:59 PM

Cats are no doubt a limiting factor. Probably the biggest restriction out of anything intake or exhaust related. Cat delete and green filter likely be fine till you get to 800+ then Headers and possibly the cat back system along with a RF big gulp system would start to show some big gains.

SienarSystems · 12-10-2019, 09:24 PM

Never did find the parts list for my install, but my pulley size has been staring me in the face the whole time...90mm.

SienarSystems · 12-10-2019, 09:26 PM

Now I just need to figure out how much boost the 90mm pulley makes on an otherwise stock ZL1...Ted? Greg? Mike?

11-15-2019, 11:09 AM	#87
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,192 View My Garage	CSP has a couple recent 2650 videos posted showing some interesting information. __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

12-05-2019, 12:11 PM	#91
JANNETTYRACING Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009 Location: ON THE DYNO WATERBURY CT. Posts: 15,223	Just finished another one https://www.facebook.com/jannettyrac...5606504085606/ __________________ www.jannettyracing.com Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com

12-07-2019, 03:03 PM	#93
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Yes, you have a very mild tune I forgot which pulley your running, but your on pretty low boost if I remember correctly __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

12-08-2019, 02:54 PM	#95
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,192 View My Garage	It sounds like 700 RWHP is getting close to the limit on OEM exhaust. The cats' start restricting flow, then causing heat to build-up, and then detonation starts to occur and you have to start killing timing; or something along those lines. Maybe if you're only going down the strip it's not too bad, but if you're into the throttle for very long, OEM exhaust is going to bite you - the manifolds and cats' that is. CSP tested an AFE 3" CB and literally only lost a couple horses at about 800-plus RWHP. The stock suitcase isn't the problem (those pinches in the pipes below the diff' aren't either). __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

12-08-2019, 02:59 PM	#96
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,796	Cats are no doubt a limiting factor. Probably the biggest restriction out of anything intake or exhaust related. Cat delete and green filter likely be fine till you get to 800+ then Headers and possibly the cat back system along with a RF big gulp system would start to show some big gains. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

11-15-2019, 10:01 AM	#85
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Nice!!! That engine bay looks familiar

11-15-2019, 01:15 PM	#88
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Yes, I was the CARB certification test. No worries...post away...love the picture and my Maggie!

12-07-2019, 02:29 PM	#92
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Man...you’re killing me Ted. I’m still considering the parts we discussed. Crazy question for Greg, Mike or Ted. Could I simply (relatively speaking) change the pulley and belt and retune for more power and keep the stock exhaust, throttle body and airbox?

12-10-2019, 09:24 PM	#97
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Never did find the parts list for my install, but my pulley size has been staring me in the face the whole time...90mm. Attached Images

12-10-2019, 09:26 PM	#98
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Now I just need to figure out how much boost the 90mm pulley makes on an otherwise stock ZL1...Ted? Greg? Mike?

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