CB Performance Quick Tune EFI System

Odyknuck · Post by **Odyknuck** » Wed Mar 19, 2008 1:32 pm

68turbofastback, Howes the new Install coming along?

68turbofastback · Post by **68turbofastback** » Wed Mar 19, 2008 2:03 pm

I should be starting it next week. I hope

68turbofastback · Post by **68turbofastback** » Fri Mar 28, 2008 3:34 pm

it runs

dunegoon · Post by **dunegoon** » Sun Apr 06, 2008 11:14 pm

I am interested in a progress report. I am looking at this system for my 2.8 liter type 4 sandrail motor.

volkaholic1 · Post by **volkaholic1** » Mon Aug 11, 2008 7:52 am

I'm very close, my set up is a 2.0 type IV in my 68 bug. I went with the fuel & ignition setup, using a complete MSD setup. I am having real bad electrical interference problems. It will not hold timing. +/- 50 degrees. So I am having the start up blues,,, I talked with Pat at CB. I am temporarily going to switch the MSD back to convential mechanical advance & see if I can get this thing going. The fuel part of the system seems OK. Hopefull this week I will get a chance to work on it.

Frallan · Post by **Frallan** » Sat Sep 06, 2008 10:58 am

Any news from anyone?
I have just bought a set but it will not run until christamas or maybe spring.
So I am quite curious about others experience.

volkaholic1 · Post by **volkaholic1** » Sat Sep 06, 2008 4:15 pm

I finally drove it today. I've had all kinds or problems with the MSD ignition, interference, then I hooked up the ignition modual wires wrong and cooked to rotors before I figured it out, changed out springs, changed out max timing. Finally got something reasonable. My issue now is that the CB kit does not go into closed loop until the temp sensor reached 150F & I can not get it over 138, so I am running rich, like 10:1. I drove like 35 highway miles & it still does not see it warmed up yet, seems odd. Also, I have to do my driving at night, with bright sun, my laptop washes out the screen & I can't see it.

miniman82 · Post by **miniman82** » Sun Sep 07, 2008 3:20 am

If you want a cheese dick way to tune around your temp sender issue, you could always connect a potentiometer in place of the sender. When the engine is warm, just twist the pot till you read above warmup temp, and be on your merry way.

Or change the sender's position to a warmer spot on the engine...

M3D · Post by **M3D** » Sun Sep 07, 2008 7:32 am

We have sat back and looked at the post on this site cal look and the samba on the CB set up and there are some problems with it right now .Or is it the install that is off

We have had guys that would like to have the CB set up but i will sit back and see what come's out the bag on this one before i get in to it .I hope that they get it right soon the price looks good for what you get if it all works.
But what do we know
www.emeraldperformance.com

Frallan · Post by **Frallan** » Sun Sep 07, 2008 7:35 am

What problems? Can you be more specific?

raygreenwood · Post by **raygreenwood** » Sun Sep 07, 2008 10:12 am

Miniman 82...using a potentiometer in place of air temp sensors and CHT is one of the very best ways to tune dynamic parts like MAP, AFM and MPS. I have been using that for some time. Itworks great. In this manner you can isolate what each change brings you. Ray

miniman82 · Post by **miniman82** » Sun Sep 07, 2008 12:53 pm

raygreenwood wrote:Miniman82...using a potentiometer in place of air temp sensors and CHT is one of the very best ways to tune dynamic parts like MAP, AFM and MPS. I have been using that for some time. Itworks great. In this manner you can isolate what each change brings you. Ray

Right. I guess I was thinking more of the way it's done on shadetree setups- sometimes that part of it can be quite cheesy! But you're right, a nice stable reading in one area can make it really easy to find issues in another area (like temp readings throwing off fueling).

68turbofastback · Post by **68turbofastback** » Fri Sep 12, 2008 4:24 pm

finally drove it today. I've had all kinds or problems with the MSD ignition, interference, then I hooked up the ignition modual wires wrong and cooked to rotors before I figured it out, changed out springs, changed out max timing. Finally got something reasonable. My issue now is that the CB kit does not go into closed loop until the temp sensor reached 150F & I can not get it over 138, so I am running rich, like 10:1. I drove like 35 highway miles & it still does not see it warmed up yet, seems odd. Also, I have to do my driving at night, with bright sun, my laptop washes out the screen & I can't see it.
_________________
Volkaholic1
Where do you have the temp sensor? It should be tapped into the head into the rocker arm chamber. I use to have mine out side and had problems getting it up to temp also.
You can jump it out with a 180 ohm resister and that will be 150 degrees

volkaholic1 · Post by **volkaholic1** » Sat Sep 13, 2008 7:39 am

I have it in the spot they recommend. I got Pat at CB to modify the program for me to make it autotune at 120 instead of 150. I finally got it going & it is now running in closed loop & correcting. It was running very rich, I think that was at least part of the problem with the engine not heating up, all the excess fuel. Now if it would only stop raining, I could drive it more!

Wirenuts1 · Post by **Wirenuts1** » Fri Apr 02, 2010 8:26 am

SOOOO, how did it turn out for you. Did you get all the bugs worked out?

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CB Performance Quick Tune EFI System

Re: CB Performance Quick Tune EFI System