Anyone running a RamJet 350?

[phantom4]

Curious if anyone on here is using this crate engine.

I am encountering some odd problems with it and am in search of others solutions.

[glock35ipsc]

N2TRUX has one in his square body.

http://67-72chevytrucks.com/vboard/s...d.php?t=187680

[phantom4]

Thanks for the link, although I am trying to find others who drive these on a more regular basis.

I have some specific questions regarding some sensor values and am curious of what altitudes people are running these at.

[ipaintem]

i've got one in the crate at the shop now, we are going to put it in a 64 with a tremec 5 speed. I will post pics on my site,www.jmcautoworx.com

[wwotr]

Originally Posted by phantom4

Curious if anyone on here is using this crate engine.

I am encountering some odd problems with it and am in search of others solutions.

WAY OFF BASE HERE, BUUUUuuuuuuuuut,

There used to be a Cartoon when I was a Kid called "Roger Ramjet".
Being as my 1st name IS Roger, ewverone always used to call me that!

My Dad always called me "Leo Nomillini" (sp), miss him everyday.

(Back to your Regular Programing)

[63chevyll]

the ramjet uses off the shelf GM sensors. What issues are you having?

[phantom4]

The major problems I am having are with the MAP and O2 sensors. The MAP will continually throw the DTC 34 Low Voltage warning. The 02 sensor will eventually stop outputting a voltage signal. Replacement sensors have been used in both applications. The replacement sensors were an attempt to bring the computer back within operating parameters. The engine ran better but was still showing signs of an inability to run a normal pulse width.

Per the shop, it looks like the engine thinks it is at sea level and the 02 sensor can only correct 20% towards leaning it back out. Overall the engine is rather lean at idle and overly rich at part throttle. Current plan is to change the gain values of the sensor and create a custom fuel and spark curve.

Just curious if anyone else has encountered any issues with this engine and application.

[63chevyll]

My 2 cents, make sure are getting the correct 5V ref , Signal and - to MAP....and those values are getting to computer terminal.

[x ReAcT x]

I know this post is over 2 years old but heres my 2 cents. I know GM came out with an updated ECU, I believe it is the 4th generation ECU for this motor and perhaps they have worked out the kinks. Check with a GM Parts Dealer?

[x ReAcT x]

Originally Posted by ipaintem

i've got one in the crate at the shop now, we are going to put it in a 64 with a tremec 5 speed. I will post pics on my site,www.jmcautoworx.com

If i understand correctly the tremec 5 speed (T5) transmission was used on the s10? does it handle the horsepower and torque well? and also I see you have a 64 but i have an 86 gmc and im also going to drop the same exact motor in and my mechanic recommended the T5 tranny also; does it bolt right in or did you have to make any modification?