C4 General Discussion General C4 Corvette Discussion not covered in Tech

Bosch EV14

Thread Tools
 
Search this Thread
 
Old Nov 24, 2017 | 02:50 PM
  #1  
RWDsmoke's Avatar
RWDsmoke
Thread Starter
Drifting
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Jan 2005
Posts: 1,353
Likes: 324
From: San Antonio Tx
Default Bosch EV14

I have not heard much about Bosch EV14's on this forum so after I bought a set and ran them for about a year I am going to share my experience with them. They are new, not "rebuilt" and come with full documentation including flow rates at different pulse widths, and voltage offsets.

I know most people like their Bosch 3's, but I've had two sets and while they worked great while accelerating and cruising, not so good at low speed. I even sent one set in to have them checked and the report said they were matched within 1%. After trying hundreds of different combinations of timing and fueling I could not get my car to run as smooth as it should under 1200 RPM'S. Blm's and wide band both indicated fuel was correct. Driving in stop and go traffic on a hot day was very annoying, to the point I was not driving my car as much as I normally would. Finally bought new Bosch EV14's. Day and night difference. I love my car again, My idle and light throttle operation is so much smoother.

I've never had much luck with rebuilt anything, including fuel injectors. This is a much newer design than the Bosch 3 and they are compatible with ethanol. These are not drop in, the smallest i've seen is 35#. They cost more than rebuilt of course but in my opinion, well worth the money. I only wish I had the money back I spent on other things trying to solve my idle problem.
Reply
Old Nov 25, 2017 | 08:28 AM
  #2  
jetskibruce's Avatar
jetskibruce
Advanced
 
Joined: Dec 2016
Posts: 65
Likes: 3
Default

Originally Posted by RWDsmoke
I have not heard much about Bosch EV14's on this forum so after I bought a set and ran them for about a year I am going to share my experience with them. They are new, not "rebuilt" and come with full documentation including flow rates at different pulse widths, and voltage offsets.

I know most people like their Bosch 3's, but I've had two sets and while they worked great while accelerating and cruising, not so good at low speed. I even sent one set in to have them checked and the report said they were matched within 1%. After trying hundreds of different combinations of timing and fueling I could not get my car to run as smooth as it should under 1200 RPM'S. Blm's and wide band both indicated fuel was correct. Driving in stop and go traffic on a hot day was very annoying, to the point I was not driving my car as much as I normally would. Finally bought new Bosch EV14's. Day and night difference. I love my car again, My idle and light throttle operation is so much smoother.

I've never had much luck with rebuilt anything, including fuel injectors. This is a much newer design than the Bosch 3 and they are compatible with ethanol. These are not drop in, the smallest i've seen is 35#. They cost more than rebuilt of course but in my opinion, well worth the money. I only wish I had the money back I spent on other things trying to solve my idle problem.

I am curious, is your car running a stock ecu and program, or has it been tuned?
Reply
Old Nov 26, 2017 | 12:36 AM
  #3  
alankb's Avatar
alankb
Pro
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2010
Posts: 530
Likes: 2
From: Havasu, AZ
Default

following
Reply
Old Nov 26, 2017 | 01:13 PM
  #4  
RWDsmoke's Avatar
RWDsmoke
Thread Starter
Drifting
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Jan 2005
Posts: 1,353
Likes: 324
From: San Antonio Tx
Default

There is nothing stock on my car. I even call it a junk yard dog. The motor is a ZZ430 clone with an Edelbrock pro-flo intake. I'm now using an EBL Flash ECM.

This is a year round daily driver. Winter in San Antonio lasts 3 or 4 days sometimes. I've had this car almost 15 years and plan on keeping it in the family for many more. I will pay more for parts that last longer.

I started this thread because after all my research looking for injectors, I liked what I read about the EV14's but found nothing from people that are using them. I called DeatschWerks and they were able to give me all the information I needed. Tuning is so much easier if you have all of the correct information about your injectors to start with.
Reply
Old Nov 27, 2017 | 12:55 AM
  #5  
scotth48's Avatar
scotth48
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 1,185
Likes: 33
From: Charlotte Michigan
Default

Last spring I sent my bosch 3's and 4's in to be checked. The 3's flow rate was around .248 and the 4's were around .298. So I put the 3's back in my '93 lt1 to get better mileage. Not sure what the flow rate was for the multecs but heard they were in the same range as the 3's. One question I do have is what is the replacement injector for the zr1 lt5 engine?
Reply
Old Nov 27, 2017 | 06:04 PM
  #6  
Cjunkie's Avatar
Cjunkie
Safety Car
 
Joined: Jun 2006
Posts: 4,008
Likes: 1,487
From: Ashland, OH
Default

Originally Posted by scotth48
Last spring I sent my bosch 3's and 4's in to be checked. The 3's flow rate was around .248 and the 4's were around .298. So I put the 3's back in my '93 lt1 to get better mileage. Not sure what the flow rate was for the multecs but heard they were in the same range as the 3's. One question I do have is what is the replacement injector for the zr1 lt5 engine?
Old Ford 5.0 19lb Injector that we threw out new by the dozens lol!
Reply
Old Dec 2, 2017 | 09:47 PM
  #7  
odxr's Avatar
odxr
Racer
 
Joined: Jul 2015
Posts: 313
Likes: 15
From: Modesto Ca
Default

I have some pink Bosch 3’s in my 87 that came out of a Volvo.The car runs very well.I forget the Bosch number but the flow rates are easy to look up by the 9 digit part # on the injector.
Reply

Get notified of new replies

To Bosch EV14





All times are GMT -4. The time now is 01:07 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE