FormulaJoe

Is AS&M the only company that can re-program this Ram Jet computer for my new Fast-Burn head/LT4HOT cam combo?? I called Ed Wright and they cannot do it. Any comments good or bad about AS&M?

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L98, 3.27 9-bolt, Hooker shorty headers, custom 2.5inch Y-pipe, no cat, 3inch 2chamber flowmaster, JET AFPR, Ported MAF, Best ET: 13.86 @100mph. 1.99 60'
17 inch ROH "ZS" wheels. 17x8.5(front) and 17x9.5 (rear). Firestone Firehawk SZ50s. 245/45/zr17s and 275/40/zr17s. T56

On the way... Radar Blue 89 Formula, T56, Ram Jet 430, Ram Air, 17inch ROHs.

Yelofvr

AZS&M do very good work and charge very high prices. TO add closed loop to the Ramjet 350, they charge $475 and the only hardware you get is an O2 sensor and weld in bung. They are the only ones I've heard that reprogram the RamJet. I have asked on this board and no one has done it themselves....Yet!

Grim Reaper

Personally I cannot see why the 730 ecm could not be made to work with the Ramjet. They both are speed density systems. To the 730 it would just require working on the VE tables etc like swapping to a Miniram with a different cam and heads.

For the $475 that AS&M wants, you could buy all the equipment for that.

gdkng

The RamJet uses GM's MEFI3 controller. it is the same controller that is used on the port injection marine engines than Indmar and others build. All I know is that the controller does not use a oxygen sensor and therefore cannot do any closed loop compensation. I know that Rinda's web site shows a Diacom package that can be used with the MEFI# controller and that they sell software to the engine builders for calibration purposes. I wish there was more information available, I have been working on MasterCraft that uses the 93 MEFI on a TBI. I would like to re-program, but am having trouble finding the info.

I agree that the '730 would be an excellent choice for use with the Ramjet intake.

gdkng

TRAXION

730 all the way.

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

FormulaJoe

When I called AS&M, they told me it would be $350. THey have already done some of these MEFI computers to work with the Fast burn/LT4 Hot Cam combo. I guess they are the ones that did the work for Scoggin Dickey's Ram Jet 430 that they sell for like 9000 bones. I am pretty sure that they dont use the closed loop system at all. I.E., no O2 sensor. I could be wrong.

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L98, 3.27 9-bolt, Hooker shorty headers, custom 2.5inch Y-pipe, no cat, 3inch 2chamber flowmaster, JET AFPR, Ported MAF, Best ET: 13.86 @100mph. 1.99 60'
17 inch ROH "ZS" wheels. 17x8.5(front) and 17x9.5 (rear). Firestone Firehawk SZ50s. 245/45/zr17s and 275/40/zr17s. T56

On the way... Radar Blue 89 Formula, T56, Ram Jet 430, Ram Air, 17inch ROHs.

Grumpy

Yes it's the MEFI
Yes there is a closed loop option.
Yes folks are working on cracking it.
Uses a very different tuning strategy
It's Flash
I know of no co I'd spend money with to have them tune it for me. Anyone one remember Carprom?. Supposed for $1200 *they* would give you a password to a bullentin board and anwer any prom guestion, ya right, hahahahahaha.

branz28

Sounds like something a little 12/13 yr old greedy punk @$$ kid would do just so he could get money to take his perdy lil' girl friend out that saturday night...heh..

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Problems every other day with the car (probably not a mod, but to me it sure makes a difference)