Real Fiero Tech

I am in the beginning stages of swapping an LS1 into my '87GT 5-speed. The car is going to be a street car for the most part, but will see a few trips to the track. I'm trying to figure out, from the experience here, how much HP I need to run low 12s, high 11s. Stock, my motor puts out 320ish at the...

It won't help you much, but I did see an engine removed from a donor car with the help of a fucking CATEPILLAR FORKLIFT! Not one of those wimpy things you see rolling around Costco, but a big tractor with a forklift attatchment on the arm. They rolled the car on its side, the guy pulled the cradle ...

whipped wrote:what's the displacement on the 4.4 blower?

122 cubes. Prestty good size. The blower is only overdriven 2:1. That can easily be changed for alot more boost. Take a look:
Blown Caddy

Simple answer is dyno time. For the manifold you could use something of a slip joint, with the runners either vertical from the plenum then transitioning into the head, or with a dual plenum/TB setup opposite of the head. On the straight section of runner, use concentric fitting pipes with a flexib...

Here is a better shot: http://popularhotrodding.com/enginemasters/articles/cadillac/0504em_cady_07_z.jpg From the pic it looks like it can be turned around no problem. The port spacing is the same and no coolant passages to get in the way. As long as the valley cover isn't in the way of anything. TH...

Umm, let's see...I think I burned by calc 2 book after barely passing....Either that or these ashes are from my first cat..... :scratch: So the question is how do you test for the best intake runner length? We kinda have an idea how the waves work, now to use them. Anyone know how to inexpensively b...

As soon as the intake valve is opened, the pressureized intake air flows into the cylinder, expands and draws the air molecules which follow into the cylinder. The suction waves form in the intake pipe (moving at sonic speed) in the opposite direction to the intake air. These suction waves are refl...

Air enters the supercharger through the back of the case, and it forced out the exhaust port of the supercharger. The cobra has the exhaust port on the bottom, the Caddy has it on top. The air goes up through the intercooler and then down the intake runner to the head. The Salleen kit for the new M...

Found my N62 book. Here is it word for word from BMW (Copyrigth 2001 BMW of North America LLC, E65 Complete Vehicle, Part 2, N62 Engine, Page 8-9) "To ensure that there is good airflow to the engine cylinders, the intake pressure in fron tof the intake valve should ideally be high. This means t...

Vacuum means "depression of air pressure below ambient" and I'll use the term as long as it fits the situation. Ask that same engineer what operates power brakes... The answer is vacuum. Tell him a physicist told you so. Engineers hate that. Anyway, because the piston is beginning its dow...

Very compact as the intercooler sits on top of the supercharger. How does that work? Air going into a supercharger is already at ambient. :p Air enters the supercharger through the back of the case, and it forced out the exhaust port of the supercharger. The cobra has the exhaust port on the bottom...

Now if the pulse speed is significantly less than the speed of sound, that could work. I think so. I would think that the speed of the pulse would be a factor of the speed of the intake valve right beofre it touches the valve seat. But it is called "Resonance tuning" in the business, so s...

Close, but not quite. I've been factory trained by BMW and have spoken to many engineers (the one's that speak english) about it. The pressure wave occurs when the intake valve CLOSES. Before the air in the runer slows down,the air traveling at a high velocity slams into the closed valve and "...

I would personally like to welcome you. I think you know quite a bit and can offer a lot of tech knowledge to this forum BTW I am out of the Daytona Beach area. Thank you! I'll be building my car out in Dade CIty, but I live in Orlando. Let me know if you're gona be around. As for the first pic up ...

I'll do my best to do a photo history of my '87 Fiero GT/LS1 conversion. It will be done using V8Archie's kit (as soon as it is shipped to me!!).

Everone's stuck on the intake valve closing when they should be worried about what happens when it OPENS. When the intake valve opens, it sends a low pressure pulse up the intake runner. This pulse gets to the end of the intake runner at the plenum (or open air in the case of velocity stacks) and r...

eHoward wrote:Welcome to the forum.

Thank you! I'm gonna try and be a useful participant. Anyone elso from Orlando or central Florida?

Fiero Savvy wrote:
So, my question is, what is the easiest way to drop the engine.

Just let go of it.
Sory, I had to do it. Flame away. :cussing:

BTW, the top pic is the new Caddy setup, big $$$ and the other pics is a LS1 pickup truck Radix unit. Both have intercoolers. Cheers.

Ok, FNG here to give some advise and info. Yes, I have have experience being a mechanic by trade and owning several high-perf machines in the past including an '02 Z28 and a '03 Lightning. Now I have a Fiero. Here's my two cents: First, you guys bitch alot. Ok, next: The Cobra system will not fit. P...