What should the fuel pressure be on a 350 TBI?

From 370-440hp you need to bump the fuel pressure up on the 454 injectors to the 15-18psi to increase their flow rate to 100lb/hr.

How to test the fuel pump on GM TBI fuel systems?

One method involves removing the fuel filter and using an adapter, that has a Schrader valve on it, in its place. You then connect your fuel pressure test gauge to this adapter. The other method is to use an adapter between the throttle body assembly and the pressure line.

What is the TBI code on a 1990 Chevy truck?

Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck. For some scan tools enter VIN 10th“L” 3rd“C” 8th“K”.

Why is my TBI fuel injection light on?

Troubleshooting your TBI Fuel Injection System Most of the problems encountered while installing your fuel injection system or after a time of operation are very simple. If your check engine light is on you more than likely have a hard fault meaning something is grounded out, unplugged, operating out of range or has gone bad.

From 370-440hp you need to bump the fuel pressure up on the 454 injectors to the 15-18psi to increase their flow rate to 100lb/hr.

What kind of engine does a 1995 Chevy 350 have?

Since then, it has been used in many different styles of vehicles. The 1995 Chevy 350-cubic-inch engine come in three versions: low-compression, medium-compression and high-compression. The low-compression version of the 1995 Chevrolet 350 was used in four vehicles: Suburban, G30 van, C/K3500 and C/K2500.

What was the compression ratio of a 1995 Chevy 350?

Low Compression The low-compression version of the 1995 Chevrolet 350 was used in four vehicles: Suburban, G30 van, C/K3500 and C/K2500. It had a cylinder bore of 4 inches, a piston stroke of 3.48 inches and an 8.3:1 compression ratio. This engine produced 180 horsepower and 295 foot-pounds of torque.

What should fuel pressure be on 350 truck?

from 250hp to 260hp the fuel pressure should be bumped up to 13-14psi on stock 350 truck injectors which will change their flow rating to 60lb/hr From 270hp to 340hp you need to change the fuel pump as the stock pump can’t maintain pressure over 270hp and you need to run 18psi on the 350 truck injectors for a flow rate of 72lb/hr

How to fix a 1990 Chevy 5.7L TBI fuel problem?

It ran long enough to drive up on the trailer while under its own power and it also drove off the trailer on its own power (not that same day I brought home) but you did have to keep foot on throttle otherwise it would stall out and not start again until the next day. 1. New Fuel pump 2. New Fuel filter 3. New Fuel pump relay 4.

When does a 1995 Chevy K 1500 350 TBI hesitate?

An expert whose answer got voted for 100 times. Re: I have a 1995 chevy k 1500 350 tbi it hesitates when…

What kind of Head do I need for a 350 TBI?

Another good reasonably priced set of heads that will work nicely without special intakes on a TBI motor is a set of Summit Racing aluminum heads. Great flow number and stock TBI or aftermarket TBI intakes will bolt right on saving you some money. 50 state legal and better flow numbers than vortec heads.

Can you change the throttle body on a 350 TBI?

Modify the throttle body. This one pretty cheap but does require removing the throttle body. UTIMATE MODS . Stock 42mm TBI units flow around 450cfm which if you look at http://www.carburetion.com/calc.asp a stock 350 even with a cam upgrade to increase the powerband to 5500 rpms isn’t going to use much if any more than that stock throttle body.

What are the specs for a TBI crate engine?

4. The cam in the TBI engine is just plain AWFUL. Specs on Stock TBI cam is .050″ tappet lift (intake/exhaust) is 165/175; and maximum lift with 1.5:1 rocker ratio (intake/exhaust) is .382/.402. I got those specs right off the Jegs website selling the new GM replacement TBI crate engines.

What kind of engine does a 1990 blazer have?

Vehicle Details Chevrolet Blazer. 1990 Blazer, 350 c.i. , V8, TBI, S.S. exhaust, 4X4, 4″ lift, new Suspension Springs and Shocks, no A/… Over 4 weeks ago on Yupyi! Update, I pulled throttle body off and rebuilt it. New injectors a rebuilt the fuel pressure regulator, plugs n wires distributor cap but… Its a 1990 Blazer..

How old is the 1990 Chevy Blazer Silverado?

Vehicle Details 1990 K5 Blazer Silverado 132k original miles Factory TBI 350 Runs Strong Factory AC Power windows and power door l… About this vehicle This 1990 Chevrolet Blazer is an original. The owner has had it for 3 years. The vehicle runs great and is mainly us…

How to sell a 1990 Chevy K-5 Blazer?

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What should fuel pressure be in a TBI?

So, basically I rebuilt the TBI. New injectors, fuel pressure regulator, cleaned the IAC and the ERG valves. Installed new plugs, wires, cap, rotor, fuel filter, and O2 sensor. I checked the fuel pressure and it is reading 11psi down to about 7psi.

Can a carburetor be replaced in a TBI engine?

While it works fine for stock applications, the fact is that General Motors’ Throttle Body Injection (TBI) system is a nightmare for modified engines. Though it is possible to replace the injectors and throttle body, and to reprogram the computer, many find it simpler to “down-grade” to a carburetor setup.

Is it possible to pull 1hp per cubic inch with TBI?

While TBI has a few crippling limitations it is still possible to pull a little over 1hp per cubic inch from these vehicles but requires a LOT of good planning and implementation to pull that kind of power level off and I am here to help provide that advice as well as support for the computer system to help you get there.

What should the idle speed be on a GM TBI?

Insert a T-30 size Torx driver into the Idle adjustment screw that is located behind the plug removed earlier. Turn the screw to adjust the idle speed to 650 RPM +/- 50 RPM. Turn off the engine and disconnect the negative battery terminal from the battery using a wrench.

What kind of scan tool do I need for GM TBI?

A scan tool can be used and set up for a GM TBI application to read the data, or to check for stored codes. Consult a service manual or see below for any check engine light code definitions. You can use a late 80’s or early 90’s GM TBI definition. If you have access to a scan tool use a hook up for a 1990 350 cu. in. 5.7L Chevrolet truck.

How do you clean a Chevy TBI fuel injector?

How to Clean a Chevy TBI Fuel Injuctor. Spray the injector or injectors with throttle body cleaner, and gently clean the exterior and the tip of the injector with the brush. Do not insert any metal objects into the tip of the injector, as this will enlarge the nozzle tip, permanently damaging the injector. Replace the air filter assembly,…

What should fuel pressure be on a TBI fuel injection system?

Fuel Pressure is critical to the operation of a fuel injection system. Always check to insure that you have the proper fuel pressure. Fuel pressure should be a constant 10 – 15 PSI on a TBI fuel injection system and is typically around 12 – 13 psi. Higher pressure than 15 psi indicates that there is an issue with the installation.

What are the symptoms of a bad fuel injector?

1 Thin Oil – When a fuel injector leaks, all of that fuel is not getting burned in the combustion chamber. 2 The Smell of Fuel – When your engine is getting too much fuel, your Silverado can’t burn it all. 3 Engine Locks Up – Once too much gas gets in the oil, the motor will lock up.

How does the TBI fuel injection system work?

Your TBI fuel injection system fueling is “triggered” from the ignition system. It is assumed that the coil is operational, a 12 volt ignition 1 (IGN1) source is connected to the positive terminal of the coil for external coil applications or to the positive slot for coil in cap applications. Remove plug wire and check for spark while cranking.

How much air flow does a TBI motor have?

But you can do those ultimate mods since they are free and will give you good air flow up to about 270hp or about anything you can build with the stock TBI heads. If your going going to build a motor for over 270hp then you need more then the ultimate mods.

Where does the injector pulse come from in a truck?

I guess no one reads….injector pulse comes from ecm..via ignition module..pickup coil.Once ecm senses 400 rpm,s from engine it takes over. But injectors pulse works off of ground from ecm…you have to have the grounds at thermostat and intake or will not pulse injectors.Grounds for all sensors.

Is there a crank sensor on a TBI engine?

Now with a TBI engine, there is no crank sensor telling the PCM if its running. It took me about a week to figure out what to do, but when i did its easy as 123. 1.Find the plug that used to plug into the Distributor and lead to the PCM. 3. Take Wire and run it into the TACH position on your HEI Distributor.

Where to spray starting fluid on GM TBI fuel system?

Spray starting fluid down the bore of the throttle body. When you have sprayed a good squirt of starting fluid, quickly place the air filter assembly’s cover back on. IMPORTANT: Placing the cover back on the air filter assembly is important because it’ll prevent any back-fire, that may occur, from spouting flames out of the throttle body.

How much fuel pressure do you need for 450HP?

For over 450hp you really should be looking at alternative injection system but for up to 450hp you would need to run nearly 22-26psi of fuel pressure to increase the lb/hr rating on 454 injectors to 112lb/hr and that is as much pressure as I recommend applying to a set of TBI injectors. 10. The chip.

What’s the tow rating of a G20 van?

I have an ’04 V8 SR5 2WD 4Runner rated for 7300 tow rating. That’s the 4.6 V8. I had an ’80’s G20 Chevy Van w/ a 350 V8 and easily pulled a two rail dirt bike trailer but you’re gonna need some ass to pull 7500#. If you do it often, find a vehicle with a tow rating of your load PLUS 10%.

Can a G20 van pull a dirt bike?

That’s the 4.6 V8. I had an ’80’s G20 Chevy Van w/ a 350 V8 and easily pulled a two rail dirt bike trailer but you’re gonna need some ass to pull 7500#. If you do it often, find a vehicle with a tow rating of your load PLUS 10%.

What was the name of the 1992 Chevy G20 van?

What’s the price of a 1994 Chevy G20?

See pricing for the Used 1994 Chevrolet G-Series G20 Van. Get KBB Fair Purchase Price, MSRP, and dealer invoice price for the 1994 Chevrolet G-Series G20 Van. View local inventory and get a quote from a dealer in your area. Home Car Values Price New/Used My Car’s Value Instant Cash Offer Cars for Sale Cars for Sale Sell Your Car

Is there no fuel from injectors to start truck?

No fuel from injectors to start truck. When I try and start my 93 Chevy Cheyenne k3500 no fuel come out of the injectors. If I use starting fluid the truck starts and the injectors work great. Has died a couple times while driving, but mostly runs fine and then won’t start one turned off.

How much oil is in my Chevy Silverado?

Many Silverado 1500 drivers reported that they noticed abnormal noises coming from the engine or that the truck felt like it was bogged down. Much to their surprise, they would be 2-4 quarts of oil low when they took it in for regular oil changes.

Why is my Chevy Silverado 1500 burning so much oil?

Can you put a 350 engine in a S10?

Physically getting a 350 engine into an S10 chassis may be the simplest part of the entire swap. If you’ve got a 4.3-liter truck, a 350 and TH350 will almost bolt right in; you may have to modify or replace the transmission crossmember, but otherwise, it’s almost a straight swap.

How to order a 350 TBI Chevy performance engine?

Here you can see the 350 TBI engine specs, shipping info, and more! Instant quotes: (888) 957-5454 For optimum service and purchase accuracy all quotes and orders are completed by phone. You can reach by phone at 1-888-957-5454 or email at [email protected]!

How much horsepower does a 2000 350tbi have?

Wow, that makes me feel better my 2000 5.3 was rated at more torque than my 90′ 350 😉 The Vortec 350 (96-00) has 330 ft-lbs of torque at 2800 RPM. It’s not just how much torque but how soon it comes available. The 5.3 peak torque is 325 ft-lbs up at 4000 RPM and down to about 300 at 2800 RPM and tails off from there.

What should the fuel pressure be on a TBI 350?

WRONG – tbi is 11 to 14 lbs pressure stock! A stock tbi injector can go up to about 30 psi though:flipoff2: TBI’s max out around 30 psi, operating pressures are lower. Pressures in the 50-70 range are common in the later model CSFI & CPI vortec engines.

What was stock horsepower on 1994 350tbi Silverado?

The 95 350 was 200 HP – 300 ft-lbs torque. Probably the same in 94 before the big boost in 96 with the VORTEC up to 255 HP. . I am thinkin 190 or 200hp for the ’91 we used to have and I thought the torque was 300+ ft/lbs. Wow, that’s all the torque those put out? I thought they were at 350 ft-lbs

How long is the warranty on a Chevy 350 TBI?

Our nationwide warranty on the 350 TBI is a whopping 5 years or 50,000 miles. Why? Because we take pride in the engines we build knowing they are our best when they leave here. We use a common-sense and personable approach getting you back on the road as quickly as possible if anything were to happen.

What should the air flow be on a 350 TBI?

On the average 350, I like a intake runner in the 165-180cc range and I like my air flow at.500″ lift to be at least the 225cfm that a vortec head flows. Stock TBI head flows around 175cfm.

What should the fuel pressure be on a 350 TBI?