motor not running right

1fasbug · Post by **1fasbug** » Sun Jan 26, 2003 4:54 pm

I have finally got the 2176 efi turbo running. Im using the cb performance hide away kit. It is idling at 1000rpm and sounds real clean. When I try to increase rpms it will not go pass 5k and it feels like it has no power. oil pressure is at 55psi and the throttle bodies are flowing the same at idle and I have the linkage set as well as i can. let me know what you guys think. thanks

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it's always the last placed you looked because only a idiot would keep looking

iamahugevwnut · Post by **iamahugevwnut** » Tue Jan 28, 2003 9:54 am

Is the Timing cool?

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Dan Branham
VW nut

1fasbug · Post by **1fasbug** » Tue Jan 28, 2003 5:32 pm

Im running the msd btm and I am going to try and hook up a air compressor and make sure it is working right. The funny thing is my boost gauge has not registered while driving the car. I have taking the car up to 3000 while driving and still have not seen any boost.

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it's always the last placed you looked because only a idiot would keep looking

turbo racer · Post by **turbo racer** » Tue Jan 28, 2003 9:40 pm

sounds like a flat cam

1fasbug · Post by **1fasbug** » Wed Jan 29, 2003 12:59 pm

The cam has already been broken in so I don't think it has gone flat. Also it is idling really well so that also leads me to believe that the cam is fine. I think im just having trouble tuning in the a/f. Its CB's kit and it can be a little confussing.

Bare · Post by **Bare** » Wed Jan 29, 2003 1:27 pm

NO.. Boost.. there's something seriously wrong then.. best to try an accurate boost gauge first, then try and figure out where yer pressure is going.
Try a long hill in third gear, boost requires a good loading .
When under boost tho it takes a pretty healthy hi power ignition system to fire the plugs.. yer old blue coil and points ain't gonna do it.

Marty · Post by **Marty** » Wed Jan 29, 2003 1:28 pm

Well, a flat cam will still idle fine and run. The symptoms are a "lazy" motor. Check the total lift at each valve to be sure. "broken in" means nothing.
DO NOT CONNECT AN AIR COMPRESSOR TO YOUR BTM! You will blow it up!. You normally will not see any boost unless a load is put on the motor. Start from a stop, drive off in first gear, short-shift into second (3000 rpms) and floor it while watching your guage. The load should get it to start making boost.
It sounds to me like you have a serious intake leak somewhere.

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Marty Staggs
www.staggsracing.com

[This message has been edited by Marty (edited 01-29-2003).]

1fasbug · Post by **1fasbug** » Wed Jan 29, 2003 3:43 pm

Thanks for the advice marty. I already checked the exhast for leaks and there were two little ones that I was able to take care of. I am using autometer mechanical guages so the quailty should be good. I ran cooper tubing for all the guages including oil pressure and boost. I disconnected the tube from the compression fitting and blew into it and it did register boost. Also when I rev the car up the guage does move around a little like there is a little vacuum draw. My next step will be to check the lift and look for intake leaks. thanks again for everyone's advice.

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it's always the last placed you looked because only a idiot would keep looking

iamahugevwnut · Post by **iamahugevwnut** » Thu Jan 30, 2003 9:19 am

Once upon a time I had a car with no boost. For it was my Corrado G60 turbo. It said it had vacuum and needle moved when I hit the gas. But I heard not turbo Spooling. Odd I thought and fooled around with the turbo inlet and checked to see how it was spining and damn it didn't move but wiggled all over the place. Well cussing throwing **** I removed the Turbo which was brand new only had 10 miles on it and tried spining both turbine wheels. The odd part was the wheels both spun but completely indepentant of each other. THE SHAFT HAD SNAPPED IN HALF. I called the distrubuter and a day later is was boxed up and going to Turbonetics. The technitions where so impressed with my work on it the rebuilt it free of charge.

Just one of the 400 headaches with this car.

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Dan Branham
VW nut
www.germannewoldstock.com

Turbo-Meyers Manx · Post by **Turbo-Meyers Manx** » Thu Jan 30, 2003 5:24 pm

I'm actually having the same problem.
You said that the engine is not reving out though. I believe it has to be able to rev out to get boost (is this true?)

My engine will rev to 7000 rpm with no load no problem but on the street I'm having a proble at about 4500 rpm (I believe it's ignition) and only getting 3psi of boost. The vacuum is very strong though. I've tried changing the distributor, the blue coil, bypassing the MSD and next I'm changing the plugs.

Any Ideas? I'm going to check the waste gate tomorrow and see if it is stuck open or slightly open.

Ricky

[This message has been edited by Turbo-Meyers Manx (edited 01-30-2003).]

iamahugevwnut · Post by **iamahugevwnut** » Thu Jan 30, 2003 5:49 pm

Again check your turbos. Make sue they are spinning freely for sure! If it spinning no mater what its gonna show boost. Snd if itd not the vacuum will still change but not go above 0" hg

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Dan Branham
VW nut
www.germannewoldstock.com

JoeSumen · Post by **JoeSumen** » Thu Jan 30, 2003 5:59 pm

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by 1fasbug:
<B>I have finally got the 2176 efi turbo running. Im using the cb performance hide away kit. It is idling at 1000rpm and sounds real clean. When I try to increase rpms it will not go pass 5k and it feels like it has no power. oil pressure is at 55psi and the throttle bodies are flowing the same at idle and I have the linkage set as well as i can. let me know what you guys think. thanks

</B><HR></BLOCKQUOTE>

First...
What is the lb/hr injector size...
Second...You say 5k...Under boost, or static revving?...Of course you must have the rising rate regulator right?....

Bill Sumen
Moore Racing/
Moore Part Source

1fasbug · Post by **1fasbug** » Fri Jan 31, 2003 12:18 am

That is reving the car in the driveway(static) and as far as the injectors they are the ones from the cb kit but im not sure of the size. Yes the regulator is boost sensative. That is an interesting story about the shaft being broken in two. I have checked and the turbo is spinning.

turbobug56 · Post by **turbobug56** » Fri Jan 31, 2003 4:47 pm

It sounds like a tuning problem with the fuel injection. You could be fouling the plugs with excessive fuel. Did CB have all the engine information when loading the base fuel curve. Try checking the plugs or bet yet put a wide band 02 on it.

1fasbug · Post by **1fasbug** » Sun Feb 02, 2003 5:59 pm

can i weld the a/f sensor after the turbo(the exhaust coming off the turbo) or does it go in the collect before the turbo?