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Fuel Injection?

MaineShark

Well-known member
Joined
Sep 21, 2002
Messages
1,326
Location
Rockingham County, NH
Corvette
1979 L82, 1987 Buick Grand National
I am definitely thinking that a crate engine will be the way to go when my project '73 takes shape. Until then, I am going to look for a later-70's Shark, until I can find a '73 in good enough condition.

But, I'd still like to brainstorm ideas for the '73 project, and I noticed that GMPP sells a 'Ram-Jet Fuel Injection' kit that could be added to a crate engine (the HT383 does look like a good choice, I think, but I have a few years to make up my mind). Does anyone have any experience with these units?

Joe
 
Joe, It is a good unit.

You have to watch for hood clearance though as it is taller than a standard TPI, and the throttle body portion is in the front over the waterneck.

The only down side to it is that you CAN NOT reprogram it. In other words, you MUST make sure all components match, etc.

I am very partial to the TPiS miniram. I am running that intake on my 90 Vette. It is built like the LT1 intake (lower), but bolts up to the older v8 blocks. They also make a stand alone kit that includes the intake, injectors, harness, etc, so that you can bolt it on any car.

The trouble is that it is very expensive. Here is a cut and paste from their website.

300-204 Mini-Ram small block fuel injection kit........$3,750.00

500-505.jpg


Mini-Ram Intake Manifold


This fabulous new one-piece casting is ideal for the serious car nut. If used as a replacement for a stock Tuned Port you will see a 95+ HP gain at 5200 RPM. If you build the motor on the mild side, i.e. small cam and some porting, 125+ HP is very possible. If you go on the wild side you will be able to exceed any single four barrel power numbers, all with greater driveability and economy. Installs on existing TPI vehicles with just our Fuel Rail Kit and Level VI Prom. Use the Mini-Ram to replace and out-perform any carbureted system, just add our Wire Harness. (And the rest of the relays and sensors.) You will end up with a system that was designed by the best engineers in the world. It has self diagnostic capabilities, will run in the closed loop, open loop, and the limp home mode. Use either a mass air sensor or as a Speed/Density system. These systems have a knock sensor to protect the engine in case you get a load of bad fuel, and an oxygen sensor that will give the computer the information it needs for the best possible overall performance, mileage, power, idle quality and starting. All electronic components have either a Delco or a Bosch part number. This means you can purchase the component parts from any GM dealer or any of the major parts store chains. The system also retains the ALDL for ease of diagnosis, and does not require any field adjustments. Let us put a system together for you. We have been driving this manifold for over ten years. It has wonderful throttle response, delivers more torque from 2000 to 2700 RPM than a stock or modified TPI, and gives a great rush of power from 3500 RPM to 6500 RPM. Here are some performance examples:
 
Granted this photo is of the miniram in my 90, you can at least get an idea of how low profile it sits in the car. Notice the overall height vs. the valve covers. This thing PERFORMS! Plus, you have the dedicated support of the www.tpis.com crew to back it up.

MVC-016S.JPG
 
Look nice, but it is a bit on the expensive side, as you mentioned.

I'm curious when you say that the GM unit cannot be reprogrammed - it does not include a controller or wiring harness, so getting a programmable one is my most likely option.

Joe
 
Perhaps you should take a look at the aftermarket TPI units: Edelbrock & Holley...
 

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