The gobstopper 68 2 door

[cl72wagon]

Got to ride in the Gobbstopper lastnight.........I am still smiling. Would have taken video but it was dark and not much to see at that point. It does haul ass and now i am super motivated to get my car going.......

[banzai510(hainz)]

if you remove the hose from the crank case at idel and alot of stinky smoke them its the rings. or stincky out the valve cover top.

 

also ck the exhaust manifold under the intake if lown out.

[WAGON JON]

JON, how did you come up with this number? I always assume an L makes about 100hp on a good day. Not saying it's wrong I figure it differently and may be leaving something out that should be included.

 

If air pressure is 14.69 PSI at sea level we could assume it's about that near wolfman's in the Seattle area. In theory a 14.69 boost pressure should double an engine's output. This assumes that cylinder filling is linear and doubles with doubling of air pressure even though twice as much air goes through the same size intake ports, manifold and valves and should be restrictive as flow increases. If so 7 pounds would be just under a 50% (47.6% actually) increase over stock output. Or roughly 50 hp more.

 

Jeff, could the seal in the turbo be leaking?

 

 

Just something I observed one time.

[Josh K.]

Generally when turbos start leaking oil they behave a lot like valve guides. It will smoke pulling away from stop lights after a long hill decelerating.

[Icehouse]

It hasn't really smoked much since the first couple days, still stinks but I haven't really tried to fix that problem yet. If I keep out of the boost it doesn't really smell at all. All I can guess is that the crank builds some pressure under boost which then vents out into my engine bay then runs through all the holes in my firewall :)

[datzenmike]

Under boost there will be no manifold vacuum and maximum blow-by. Obviously the PCV valve won't be working to recirculating any fumes. Normally this reverses flow out the valve cover breather and into the air filter cover and gets sucked into the carb. If you have the tiny blue filter on the valve cover hose end, try running a longer hose and mount it down by the clutch slave so that escaping fumes blow under the car.

[Icehouse]

Mike I don't have a filter or anything on the crank case or valve cover breather. I need to try and T them together and sneek them under the car. That along with filling all the holes in my fire wall. At night it's like a wall of cold air coming in from under the dash :)

[WAGON JON]

A quick rebuild would solve all your problems.

 

Yeah I know, no time or money at the moment.

 

I feel your pain.

[510rob]

tee the crankcase and valve cover breathers together, and run them into the intake ahead of the turbo. that will fix the oil smell by burning any blowby = enviro-burn.

[VintageRice]

Got to ride in the Gobbstopper lastnight.........I am still smiling. Would have taken video but it was dark and not much to see at that point. It does haul ass and now i am super motivated to get my car going.......

 

JEALOUS ! !

[510rob]

any updates? (bump)

[Icehouse]

any updates? (bump)

 

 

UMMM Driving it daily. Got stuck in some super bad traffic the other day. Noticed that the smoke at idle happens every 15 minutes for about 30 seconds, then clears right up for another 15 minutes. Seems kinda weird but whatever :) Runs good pulls hard and is pretty fun to drive. I have a big needs list, but what Datsun doesn't :)

[WAGON JON]

Give the rats a video! Wanna see some performance!

[510rob]

Icehouse in the ice!

 

 

[Wide14u]

this is sweet

[koback68]

Ive seen Jeff use that phone flashlight on my car HAHA

[510rob]

When does Hainz get EFI???

[blueridgespeed]

Mike I don't have a filter or anything on the crank case or valve cover breather. I need to try and T them together and sneek them under the car. That along with filling all the holes in my fire wall. At night it's like a wall of cold air coming in from under the dash :)

A "pan-evac" system should work (produce vacuum at all intake manifold pressures). Prior to a rebuild, I did this for a car as blowby became a problem that almost KILLED me (with CO carbon monoxide).

 

It's something suggested by a wise drag-racer friend. It's popular with the mongo cube engines as a "negative crankcase system" to improve horsepower.

 

Essentially:

1. Take whatever you want to vent (like, for common instance, the valve cover elbow)

2. Connect it (via appropriate tube) to the EXHAUST!!!*

3. As long as this is just downstream of your turbo (and dump pipe if using an external wastegate) there is always "flow" down this tube.

4. Take a small section of tubing (1" weldable plumbers pipe works well) weld it in to your exhaust******

 

BUT THIS PART IS IMPORTANT~

 

 

Weld it in at a 45 degree angle (or so) so instead of a perpindicular intersection, like most bungs, about 1/4" of the tube you've welded in points "downstream" in the exhaust flow. This creates a venturi which produces virtually constant vacuum, and a vacuum which should be greater than intake pressures. That last part is what I'm not sure about with a turbo, but again, it works well with N/A.

 

Given that a turbo get's all the energy from the exhaust flow to compress the intake charge, taking vacuum from the exhaust charge should work...

 

He he, I say should.

 

Those wiser than I should chime in..

[nick_m]

Just put a pcv inline is the only other thing i'd say cause if your unlucky enough to get a back fire out the exhaust you could blow your valve cover off :D

[WAGON JON]

You actually drive the dime in the snow? Don't crash it!

[Guest kamakazi620]

You actually drive the dime in the snow? Don't crash it!

Thats why ya build 'um!!!!!!!! to DRIVE not to wipe wit diaper YO!!!!!!!!!! ima drive ma goon in da snow YO!!!!!! whats the point if ya DON'T drive it??????

[Icehouse]

UPDATE:

 

The turbo L series decided to stop feeding the head oil pressure.....  It was cool to take it apart and see that after over the coarse of it's life added with over a year of daily driving on cheap pump gas the pistons looked perfect!  I couldn't believe it, 8 lbs of boost the whole time too!  

 

 

 

 

Since the cars needed a motor and other work done I've decided like I normally do that a simple fix is just way to easy :)   So to make it a bit more of a challenge I picked this baby up!!  400hp daily YO!  

 

 

The smaller motor is a 2011 Nissan leaf motor which isn't quite a fair comparison, it doesn't have the inverter hooked to it.  

 

 

 

 

 

 

 

 

 

 

 

[MicroMachinery]

I may be interested in the turbo L series setup if you're lookin' to part with it. ;)

[Icehouse]

Already sold.  Had a big gas motor liquidation sale.  My plan is to "not build anymore gas cars"  but I still have a few projects that I need to finish up.   

[banzai510(hainz)]

Had a big gas motor liquidation sale.

 

 

somebody didnt call his best friend