Question for those with the RAMJET 350 engine? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BubbaGreen · 02-04-2005, 09:52 AM

For those who have or have installed the GM Crate RAMJET 350 motor. I would like to know if the computer/engine uses one or two O2 sensors. My current set up is 350-TBI and I want to purchase the RAMJET, but would like to know if I need to install another O2 sensor....THANKS!!!

**GSFMECH** · 02-04-2005, 03:42 PM

Somebody correct me if I'm wrong but I don't think the ram jet uses an o2 sensor. I think it uses atmospheric pressure to change mixture etc. I would like to know how good they really run too. I've thought about one for my truck but would like to ride in one first.

rustyold72 · 02-04-2005, 04:08 PM

You're correct about it not having an O2 sensor, Street& Performance (IIRC) does offer a way to use one (if you wish to)

inline6Bill · 02-04-2005, 05:48 PM

The Ramjet 350 does not run an O2 sensor, however, Arizona Speed and Marine does have a conversion kit to add an O2 sensor. Their kit also includes a reprogrammed MEFI controller.

chevy_632 · 04-24-2005, 02:56 PM

Those who posted wondering how the ram jet 350 is the throttle response and power and torque to milage and reliability aspect is the same to none other,my 90 gmc u can drive anywhere havnt had an ounce of problems and i put the ramjet 350 in 5 years ago i would recomend it to anyone only thing i would do different next time and will do for my 68 chevy is going for the 502 ramjet thats just my opinion tho definitly worth the money!

BubbaGreen · 06-08-2005, 06:14 PM

Still in need of a throttle/TV cable solution....wanting an OEM look.
Have found a '92 camero may be a good choice, but will need a
different bracket...So, Still looking. Here are some pics!

BubbaGreen · 06-08-2005, 06:21 PM

here is close up of the actually bracket that shipped with the engine.
Also: The Engine does use a O2 sensor, its include. This is true for the MPFI-4 computer

02-04-2005, 09:52 AM	#1
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	Question for those with the RAMJET 350 engine? - Pics included For those who have or have installed the GM Crate RAMJET 350 motor. I would like to know if the computer/engine uses one or two O2 sensors. My current set up is 350-TBI and I want to purchase the RAMJET, but would like to know if I need to install another O2 sensor....THANKS!!! __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich Last edited by BubbaGreen; 06-08-2005 at 08:00 PM.

02-04-2005, 03:42 PM	#2
GSFMECH On the road Join Date: Jan 2004 Location: NATCHITOCHES LOUISIANA Posts: 818	Somebody correct me if I'm wrong but I don't think the ram jet uses an o2 sensor. I think it uses atmospheric pressure to change mixture etc. I would like to know how good they really run too. I've thought about one for my truck but would like to ride in one first. __________________ Mike Castro- 72 SWB. Ochre and White. 496/400 turbo, GV OD ,Dakota Digital dash , tilt, Vintage Air, PS, hydro boost, factory buckets, console, QA-1 Coil over suspension, 20/20"Billet Specialties Magnetos 72 SWB. Med blue. 454/400 turbo, tach, tilt, Stock AC, PS,PDB, factory buckets, console, ECE 4/6 drop w/ 2" blocks and C-notch, 20/20"Coys- Crashed and destroyed by drunk driver Sept 2019. New 72 build in the works. My new build thread "Castro" https://67-72chevytrucks.com/vboard/...d.php?t=820934 My old build thread, the blue truck http://67-72chevytrucks.com/vboard/s...d.php?t=271489 www.louisianaclassictruckclub.com

02-04-2005, 04:08 PM	#3
rustyold72 Registered User Join Date: Oct 2003 Location: Ark City KS Posts: 505	You're correct about it not having an O2 sensor, Street& Performance (IIRC) does offer a way to use one (if you wish to) __________________ 71 Chevy C10 "The Rust Bucket" 72 Chevy C10 apart in the garage 02 WS6 T/A Fast Black and bad@$$ 93 Nissan Pathfinder "Emily" Totaled RIP girl 05 Jeep Grand Cherokee-HEMI powered 87 Iroc Z28 305 TPI auto (crying out for an LS1 swap)

02-04-2005, 05:48 PM	#4
inline6Bill A classic GM kinda guy Join Date: Mar 2004 Location: Phoenix, Arizona Posts: 296	Ramjet 350 The Ramjet 350 does not run an O2 sensor, however, Arizona Speed and Marine does have a conversion kit to add an O2 sensor. Their kit also includes a reprogrammed MEFI controller. __________________ Old school rap music: a dual exhausted GM 6 with no mufflers. "If you can find a better vehicle, buy it" Lee Iacocca, Chrysler commercials of the '80s. "I did. They are called Classic GM pickups !!!"

04-24-2005, 02:56 PM	#5
chevy_632 chevy_632 Join Date: Jul 2004 Location: kelowna BC Posts: 104	ram jet Those who posted wondering how the ram jet 350 is the throttle response and power and torque to milage and reliability aspect is the same to none other,my 90 gmc u can drive anywhere havnt had an ounce of problems and i put the ramjet 350 in 5 years ago i would recomend it to anyone only thing i would do different next time and will do for my 68 chevy is going for the 502 ramjet thats just my opinion tho definitly worth the money!

06-08-2005, 06:14 PM	#6
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	Still in need of a throttle/TV cable solution....wanting an OEM look. Have found a '92 camero may be a good choice, but will need a different bracket...So, Still looking. Here are some pics! Attached Images __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich

06-08-2005, 06:21 PM	#7
BubbaGreen Senior Member Join Date: Mar 2001 Location: Cedar Park, TX Posts: 686	here is close up of the actually bracket that shipped with the engine. Also: The Engine does use a O2 sensor, its include. This is true for the MPFI-4 computer Attached Images __________________ 71 Chevy C-10 SWB Fleetside RamJet-350/4L60e & Compushift/3.73Posi See it at www.prismnet.com/~grzanich

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