Power Jet For Turbo Carbs

[turboxp]

jet

the third power jet on my set up is for low elevation it is on on an swich that if my temps or air to fuel get to high i turn on simple fix for lean burn when you go from truck to the hill .And it is in the turbo works great.THANKS TURO DOC

 

[06MXZXRenegade800]

I realize people have built draw thru's, but can you name me a current manufacturer that uses this? Why don't they use it? what happens if you do this? what does the fact that you need super dry steam in turbine generator tell you? What happens when you run high moisture content steam through a steam generator?


PS any other chiefs out there can answer these ?

Cant recall what the hell it was, but back in the 80s (i think) their was a factory turbo car that was a draw-through setup with a carb ontop of the turbo!

IIRC their were even kits available for draw-through turbos for smallblock chevs

I had looked into this a few years ago, and apparently it does work but has some tuning/drivability issues.


How about all the diesel guys that fog the compressor along with the charge pipe as part of their checmical intercooling? Works perfectly fine...



EDIT: A few seconds of search did reveal that the old factory turbo transam's were drawthrough carbs.

As for dumping chit in pre-turbo. check this out... somewhat common in the diesel world for those guys that fins their 3 or 4 5-10gph nozzles int he charge pipe are not enough. You start dumping it in the compressor, which in theory, chemically alters the compressor map of the turbo.

Heres one setup, appx 8gph. No problems with the setup at all. Also, being that the nozzle sprays in the 2-3 micron range, its alot better than the 20 micron dirt the factory air filter lets through!

 

[RIDECATS]

Twister....how is the WC turbo project coming along? I got me a 1050 this year

How about some mist in your turbine!!
http://www.powergeneration.siemens.com/NR/rdonlyres/1ECD0293-B2B8-42FE-8C42-3250EE9F252F/0/5_Impact_of_Heat_Rate.pdf

 

[Spaarky]

Twister....how is the WC turbo project coming along? I got me a 1050 this year

give me a minute, I snapped a pic of it last time we were out sledding... I will load it up...

 

[Spaarky]

sorry, rob(TWISTER) is probally the only one that will think the pic of sasquatch is funny(I can see him sitting down in the power plant in a few hours, Mt. Dew in hand, and almost spitting it on the puter)... that is what I call the WC beast, he can explain why...

I actually have some vid of "Sasquatch" if I could ever get it to load on my puter.

 

[1madbird]

To help clerify a couple of points the fuel pressure on a 2 stroke with a turbo or any carberated engine needs to be about 4-6 PSI above boost pressure. Just take your standard stock fuel pressure and add what ever boost you are running and that is what the fuel pressure needs to be this has to be boost sensing regulator so no matter what the boost is the fuel pressure is 4-6 above that.
The jet in the turbo has 2 parts it helps with mid and topend fuel mixture so it doesnt go lean. If you stay under 10lbs you could probably get away with out it but go higher and it needs to be there togive more fuel. Plus it acts as a meth injection system and cools the charge air so emliminating the need for a cooler. This jet needs to be fed by the same fuel pressure as the everything else so 4-6 above boost, and as said it works best when hooked to a pressure switch activating it above 4 or 5 lbs of boost which eliminates the rich bog on bottem end as they will tend to drip and load up.

 

[triple7]

A little off subject but how do you guys get your carb turbo setups to not load up when you back out of the throttle quickly under high boost??

 

[TWISTER]

A little off subject but how do you guys get your carb turbo setups to not load up when you back out of the throttle quickly under high boost??

When you chop the throttle no airflow=no fuel from powerjet.

 

[TWISTER]

give me a minute, I snapped a pic of it last time we were out sledding... I will load it up...

nice Have you ever noticed in the jacks links commercials that they actually pull some pretty funny crap on old sasquach, but they always end up getting there a$$ kicked.

the name sasquach was given to the sled by outlaw because everybody talks about it, but nobody has ever seen it.

 

[TWISTER]

To help clerify a couple of points the fuel pressure on a 2 stroke with a turbo or any carberated engine needs to be about 4-6 PSI above boost pressure. Just take your standard stock fuel pressure and add what ever boost you are running and that is what the fuel pressure needs to be this has to be boost sensing regulator so no matter what the boost is the fuel pressure is 4-6 above that.
The jet in the turbo has 2 parts it helps with mid and topend fuel mixture so it doesnt go lean. If you stay under 10lbs you could probably get away with out it but go higher and it needs to be there togive more fuel. Plus it acts as a meth injection system and cools the charge air so emliminating the need for a cooler. This jet needs to be fed by the same fuel pressure as the everything else so 4-6 above boost, and as said it works best when hooked to a pressure switch activating it above 4 or 5 lbs of boost which eliminates the rich bog on bottem end as they will tend to drip and load up.

WELL SAID

everybody needs to understand powerjets get their fuel from the fuel bowl on the carb, THEY ARE NOT FED PRESSURIZED FUEL from the fuel pump. Even the one on the crossover tube gets fed from the carb bowls. Powerjets work on the venturi effect they only flow fuel when they sense air flow past the nozzle. If you hook the powerjets up to the fuel line they will dump fuel constantly whether you need fuel or not.

 

[Spaarky]

The jet in the turbo has 2 parts it helps with mid and topend fuel mixture so it doesnt go lean.

I thought the charge tube jet was for bottom to mid-3/4...... and the carb power jets were for top end....

nice Have you ever noticed in the jacks links commercials that they actually pull some pretty funny crap on old sasquach, but they always end up getting there a$$ kicked.

yah, prolly not to wise of me to be pickin on the guy that tunes my sled....

 

[TWISTER]

I thought the charge tube jet was for bottom to mid-3/4...... and the carb power jets were for top end....

you are correct, but but the crossover powerjet adds fuel everywhere at all throttle positions the carb powerjets only add fuel from 3/4 to wideopen. when tuning if the low to mid is sloppy rich you turn down the powerjet that is feeding all the time. if the big end is rich you turn down the carb powerjets.