I'll start from the beginning and try to keep it short...

I had my engine fully built for turbo over a year ago. Had it dynoed, made 320whp. Ran flawlessly for 4000 miles then went back to the dyno to bump up the boost and blew the engine (melted a piston).

Got it all put back together, retuned, and only 400 miles on the engine now... A couple weeks ago the turbo seals blew (there is oil in the compressor side piping and blowing smoke like mad out the tailpipe).

Now to the main problem... All of a sudden the car wont restart after going for a little cruise or whatever. It will start up just fine in the morning but when you shut the car off and try to restart it, it doesnt want to fire. It cranks, it has spark, and I have checked the spark plugs and they are a little damp so I know its getting fuel.

Nothing is any different from the last build and it ran just fine on the dyno, starting it up, shutting it off, starting it up etc. Why out of the clear blue would this start happening?

 

which model of vehicle is this? almost sounds like a relay.

 

check coil-- might not be a big enough spark
check grounds

 

some part of your ignition may be over heating? which could be caused by a bad ground.

any security system?

 

Its a 91 Honda Prelude... I am still using the stock coil and I do have a msd ss coil that I could try... I dont have any security system as of yet.

I'll check my grounds and try the blaster ss coil... Atleast I have something to start with. I do remember one of my grounds getting covered in antifreeze a couple of times.

 

Does it do it if you only run it for a minute or two, or does it have to run for a while to have the problem. If it only happens after running for a while, I would start with heat-related issues like a relay or the coil getting too hot or (long shot) vapor lock. If it has the problem after only running for a very short time, I would concentrate more on things like grounds or the coil.

Best of luck solving this.

 

i havent tried running it just for a minute or too, I will have to try that.

Could blown turbo seals have anything to do with any type of over heating? This didnt start till after they blew.