Big Gulp + 2650 = Rubbing

SienarSystems · 03-06-2020, 05:21 PM

Anyone else with a 2650 and Big Gulp experience this? Looks like one of the hood bolts is rubbing the silicone coupling hose between the air box and hard tube feeding into the tb. I removed the bolt and the hose is not punctured. Still looking to replace the silicone coupling. Anyone know the part number? I reached out to Rotofab and did not get a response. And, anyone know where to get the flat head bolts Rotofab provides with the kit? Thanks!

laynlo15 · 03-07-2020, 07:05 AM

If it didn't rub thru just loosen the clamps and rotate it to the bottom. No need to buy a coupler.

Omega · 03-07-2020, 07:49 AM

I believe it's 5" dia. The clamp seen in your pic shows it's for 120-140mm tubing, so 5" sounds right

Sent from my Pixel 4 XL using Tapatalk

*radz28* · 03-07-2020, 08:01 AM

If you don't drive in the rain a lot, I'd just leave it off, and maybe throw some towels over that area in the engine compartment when you wash it. That's what I did, anyways, but I don't drive it in the rain. Maybe try Fastenall. I think if you do like a "button head bolt" in the correct size on Amazon you could probably find one. I know of a place be me where I bet I could find them.

JMHO.

My memory was wrong... you have to replace those fasteners... duh. Still - maybe consider the above. I know the bump from the standard RF to the BM was worth like 20-30 RWHP on an 800-RWHP car through dyno testing (CSP's video on Andrew's ZL1).

EDFHOBBIES · 03-07-2020, 09:04 AM

How do you not have Mike w rotofabs personal cell?

I though you maggie boyz where the fastest? I got it! but of course i worked with him on the 112 stuff because the eforce blower was out 1st!

just kidding if ya need it let me know!

SienarSystems · 03-07-2020, 10:34 AM

Thanks all. @EDF - Mike only gives his cell # out to people with port injection so I’m out of gas...seriously I think the lack of response has something to do with my zip code and the fact that Rotofab does not sell to folks in CA. Guess I could just cut a giant hole in my hood and call it a day, right EDF?

laynlo15 · 03-07-2020, 01:05 PM

I have it but I don't give it out unless Mike tells me its ok. I've known him since 2008, good friend. Just go to hardware store, its probably an M6 1.25 thread or just take that bolt with you and buy a phillips head bolt for it. Yes you are correct.

*radz28* · 03-08-2020, 08:17 AM

That cutting isn't for the faint at heart, like a person like me, hahaha.

ShizzySupra · 03-11-2020, 08:42 AM

All E Force poser talk aside:

Why do you have a 2650 and a big gulp with stock throttle body?

laynlo15 · 03-11-2020, 08:46 AM

Shizzy, he has the 95mm Lt5 but I think he is planning a 103 someday after some more mods.

SienarSystems · 03-11-2020, 11:20 AM

Correct, I have a ported 95mm. Will address fueling and add the 103 or 112 tb and snout after my move.

Originally, I had the stock airbox and tb in order to be Magnuson’s CARB test mule.

03-06-2020, 05:21 PM	#1
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Big Gulp + 2650 = Rubbing Anyone else with a 2650 and Big Gulp experience this? Looks like one of the hood bolts is rubbing the silicone coupling hose between the air box and hard tube feeding into the tb. I removed the bolt and the hose is not punctured. Still looking to replace the silicone coupling. Anyone know the part number? I reached out to Rotofab and did not get a response. And, anyone know where to get the flat head bolts Rotofab provides with the kit? Thanks! Attached Images

03-07-2020, 07:05 AM	#2
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	If it didn't rub thru just loosen the clamps and rotate it to the bottom. No need to buy a coupler. __________________ 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

03-07-2020, 08:01 AM	#4
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,197 View My Garage	If you don't drive in the rain a lot, I'd just leave it off, and maybe throw some towels over that area in the engine compartment when you wash it. That's what I did, anyways, but I don't drive it in the rain. Maybe try Fastenall. I think if you do like a "button head bolt" in the correct size on Amazon you could probably find one. I know of a place be me where I bet I could find them. JMHO. My memory was wrong... you have to replace those fasteners... duh. Still - maybe consider the above. I know the bump from the standard RF to the BM was worth like 20-30 RWHP on an 800-RWHP car through dyno testing (CSP's video on Andrew's ZL1). __________________ '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

03-07-2020, 09:04 AM	#5
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	How do you not have Mike w rotofabs personal cell? I though you maggie boyz where the fastest? I got it! but of course i worked with him on the 112 stuff because the eforce blower was out 1st! just kidding if ya need it let me know! __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

03-07-2020, 01:05 PM	#7
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	I have it but I don't give it out unless Mike tells me its ok. I've known him since 2008, good friend. Just go to hardware store, its probably an M6 1.25 thread or just take that bolt with you and buy a phillips head bolt for it. Yes you are correct. __________________ 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

03-07-2020, 07:49 AM	#3
Omega Drives: G8 Join Date: Mar 2012 Location: NJ Posts: 251	I believe it's 5" dia. The clamp seen in your pic shows it's for 120-140mm tubing, so 5" sounds right Sent from my Pixel 4 XL using Tapatalk

03-07-2020, 10:34 AM	#6
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Thanks all. @EDF - Mike only gives his cell # out to people with port injection so I’m out of gas...seriously I think the lack of response has something to do with my zip code and the fact that Rotofab does not sell to folks in CA. Guess I could just cut a giant hole in my hood and call it a day, right EDF?

03-08-2020, 08:17 AM	#8
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,197 View My Garage	That cutting isn't for the faint at heart, like a person like me, hahaha. __________________ '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

03-11-2020, 08:42 AM	#9
ShizzySupra Drives: 16' Camaro 2SS Join Date: Sep 2015 Location: Oregon Posts: 381	All E Force poser talk aside: Why do you have a 2650 and a big gulp with stock throttle body? __________________ @DeathWatchCamaro on Insta 993whp Magnuson 2.3R 9.5 @ 145, Magnuson 2300, Full Weight 2SS, 17’s (810whp)

03-11-2020, 08:46 AM	#10
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Shizzy, he has the 95mm Lt5 but I think he is planning a 103 someday after some more mods. __________________ 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

03-11-2020, 11:20 AM	#11
SienarSystems Drives: ZL1 1LE Join Date: Oct 2018 Location: NYC (almost) Posts: 339	Correct, I have a ported 95mm. Will address fueling and add the 103 or 112 tb and snout after my move. Originally, I had the stock airbox and tb in order to be Magnuson’s CARB test mule.

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