jax04's 1991FC-5.3-S475-PowerGlide-Dominator Street machine!

[Speedfab]

If you just want to play with the stuff, do it any way you want.  I of all people know how much it sucks to build some big complicated mechanism, have a bunch of time/money into it, and think it's really cool and then have someone show up with something that's simple as hitting a rock with a stick that works better.  That has happened to me more times than I care to admit.

[jax04]

OH i know that feeling, i do love tinkering with stuff though.  I think ill be taking your advice on running a single set.  But im pretty sure ill be trying it with different placement.  Run with it up and with it down and see if anything changes, picks up, falls off, whatever.  Its alot of fun to see what works and what doesnt.

PLUS, we were gonna do one other thing as well.  My company does CNG conversions and they gave me a kit to see if i could get the holley to control it, now i have no doubt in my mind i could.  We do alot of bi-fuel setups already with different "kits", like my cavalier, it runs on CNG as long as it has some in the tank, then when it runs out, it automatically switches over to gasoline, its pretty much seamless.  Its alot of fun tinkering with shit and making different things work.  I love it.

[digitalsolo]

You want the fuel spray pointed as much at the back of the valve as possible.   Generally the lower point is best for that.

BTW, you don't have to weld up the top bungs, you could just stick some injectors in them and just not hook them up. 

Also, FWIW, BeasTT's car has not run out of fuel yet with ~1000 RWHP and 120 lbs injectors, and it's on E85.   My friend Chris went 8.90s with my 120s on loan in his truck also.

[mefarri]

Listen.    To.     Tracy.   

 

[jax04]

You want the fuel spray pointed as much at the back of the valve as possible.   Generally the lower point is best for that.

BTW, you don't have to weld up the top bungs, you could just stick some injectors in them and just not hook them up. 

Also, FWIW, BeasTT's car has not run out of fuel yet with ~1000 RWHP and 120 lbs injectors, and it's on E85.   My friend Chris went 8.90s with my 120s on loan in his truck also.

Thought about that last night, haha.  As far as injector angle, i think that is something different for every application. 

Good info on the injectors as well.  I know Los has ran into the 8.90s @ 3800lb with them as well. 

[theantirotor]

its not really different for every application or people would still be rocking throttle body injection.  as it stands its becoming more and more apparent that closer is better.  see direct injection.

[jax04]

its not really different for every application or people would still be rocking throttle body injection.  as it stands its becoming more and more apparent that closer is better.  see direct injection.

Im not going to disagree that closer is better for other purposes.

The second set was added to increase the amount of time the fuel is in the air stream before combustion, allowing more heat to be extracted.  Again, the second set was added to take advantage of ethanol, in a class that gave a break for not using and intercooler, and allowed Gas or Ethanol with no penalty for using one over the other. 

[DavidPHumes]

Why not just spray meth?

[digitalsolo]

Remember, you want fuel atomized as much as possible.   Many injectors, especially high flow ones, are less than great at that.   Carbs are actually generally better at atomization, which is how they get away with their location and still function well.    Point the fuel at the back of a hot valve helps better atomize the fuel.

That's the theory anyway, the rule with engines is there are exceptions to every rule.

[jax04]

Why not just spray meth?

In that particular class, it was considered liquid intercooling....  Their was a loop hole... It was called staged injection...

I agreed with Tracy, for a street car, its simply over complicated.  Blake had a great point, just stuff some injectors in their, they are closed in off position anyway. 

[Speedfab]

Why not just RUN the car on METHanol?  You keep saying everything about this class you were going to run in past tense...  Does that mean none of the stuff you were doing aimed at that makes any difference anymore?

[jax04]

Why not just RUN the car on METHanol?  You keep saying everything about this class you were going to run in past tense...  Does that mean none of the stuff you were doing aimed at that makes any difference anymore?

1.  Its now a street setup
2.  Even if it wasnt, that class didnt allow it...

It is simple, i asked whats the best way to use it,
You said, DONT.
 I explained why i had it in the first place... The reason i was doing what i was doing.

I agreed, now that this is a street car, and no longer a TRACK car, you are right. No need to do what i was going to do.

I was bringing that up to prove the point about the angle and such.  In that case, it didnt really matter a whole lot.

In this case, i can see where running only the top set might make a difference, but being that its so far up, will it? will it not?  will it be adverse?  I dont know, and im the kind of guy that would like to find out first hand.

[jax04]

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[jax04]

Calling it quits for the night.




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[jax04]

Man my camera on my phone sucks.  Oh well.  basically, modified my engine mounts to get the engine up since i went solid, its easier for me to brace a 45lb turbo off something i build from the chassis then the engine.  Other then that, its pretty obvious that the entire manifold will have to be accounted for in the cutting of the hood.  Oh well.

Anyhow, tomorrow, ill probably go ahead and jack the car up and get to work on mounting the trans and making a trans mount.  As it sits right now, Im pretty happy.  Going to have to clearance either the manifold or the brake master cylinder for the truck manifold, it hits. Definitely considering switching to those vette manifolds now.  Which flanges did you guys order for those outlets?

 Heavily considering those Pegasus clamps for the turbo and the throttle body.  Its going to be all of 8-10" long maybe. Turbo will be centrally mounted with the charge pipe going straight to the throttle body.

Big shout out to Blake and the guys on here for the info here, i had a few questions tonight regarding a few things while i was pondering it, electrical, and found it very easily.  Thanks to all of you!