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A compressor moves a certain VOLUME of air. Even though most compressor maps list airflow by mass (lbs/min), it's actually a matter of VOLUME (CFM), that has been translated to mass by assuming a certain temperature and pressure (~25C and 1 atmosphere). So, what this means is that a...

Picked up a couple VNT turbos off of Ebay. They are GT3782VAs, the turbos on the 2003+ Ford Powerstroke Diesels. Each can support up to about 575RWHP. Gonna slap one on my Supra and use my computer (AEM EMS) to control the turbine nozzles. Will see. Thought I'd let you guys know. Buick...

This is a theoretical question. Please don't tell me "Don't do this," I know. The actual "work" done by a turbine is determined by the pressure ratio from the inlet to the outlet, and the mass flow through it right? In looking at Turbine flow maps from Garrett, I think another principle is...

This is a little idea I have been bouncing around my skull the last few days. Goes something like this. Turbo is no longer part of the exhaust. Exhaust would be like a NA. Turbo is powered only when needed. Sits idle most of the time. Power to spin the turbine will be provided by the...

Hopefully someone here can clear this up for me. Let's take the Spearco 2-170 core (2-230 assembly) ratings as a example. This will (at least initially) only address the determination of pressure drop, without covering efficiency (how much cooling occurs). CFM PSI Drop 700 .18 1100...

Since I was looking into straight O2 injection, I decided to expand my stuidies. Hydrogen peroxide seems promising. I already have a methanol/water injection system, so using H2O2 would be a matter of just pouring some in. Note: If you didn't know, 35% or 50% hydrogen peroxide is available...

I'm pondering just adding pure oxygen injection. Get a O2 cylinder, some high pressure line, a solenoid, and a jet. O2 should be MUCH cheaper than N20, considering it's used alot in gas welding. I have been trying to figure out why anyone uses N20 when there is O2. O2 obviously is pure oxygen...

I got a crazy idea. You use a CO2 cylinder, with a regulator on the output. This then feeds into a stainless steel propane tank, which is actually filled with methanol. The CO2 feeds into the top, and the methanol exits out the bottom, going through a solenoid mounted just before a injection...

Donald just finished the headers on his project GN. Talk about a work of art. Modeled after the turbo engines used in F1 ahwile back. The best header design there is if you don't mind the clearance issues. I'd love to have a race car with these, they just look so badass. I hope Donald would be...

You ever hook a Buick ESC module up to the knock sensor from a different car? If so, was there any success? What kind of motor was it?

Does the FAST system have some sort of PWM output? If so, can you set the duty cycle in a 3d map (like the fuel and ignition tables), and can you set the pulsewidth or frequency?

http://www.bete.com/products/pages/pj.htm Look nice, with flow rates almost up to the same as twin M15 nozzles. I have one on the way and will be testing it next week. I'm gonna video record the mist it produces with full pressure (over 100psi) and pure methanol.

Recently disassembled my custom alky kit after a failed check valve. The Shurflo pump was perfect inside, I mean perfect. Compared it to a brand new pump and everything was unchanged by 100% meth+Uplon, been using it for a couple months now. I let the methanol sit it in all the time, no flushing.

Well my kit finally died. Funny thing, the pump is still going, even though it has Viton valves. I imagine they will show some wear when I tear the pump down. The check valves went first, they were Viton. Seal is gone, and they leak. I drained lots of methanol into the bottom of the...

Anyone else using pure methanol and Klotz Uplon lube? I have had the stuff in my custom kit for many weeks, and so far everything is perfect. No signs of any corrosion or soft part swelling at all.

Well guys, I can't simply believe what I have done with methanol. 100%, with 1/2oz Klotz Uplon per gallon. I have a 94 Supra, BTW. Some of you remember me from my Buick owning days. So anyway, I accidentally was doing WOT freeway pulls with no wastegate control. Long story, I had the...

What causes boost to drop? I can't seem to keep my boost setting, it always drops off after the wastegate opens.

I have heard it equally both ways. "Methanol becomes MORE corrosive when water gets in it" AND "Methanol corrosiveness goes down considerably with just a little water" OK guys, for the last time, what is it? My guess is that it depends on what we are talking about. In a pure...

I already know its a bad idea with a intercooled car. But I'm doing a little testing without a intercooler, to see if I can get cool inlet temps with a 70/30 methanol mix, or maybe pure methanol (not sure yet). Now I have read both sides. #1 it will destroy or wear away the compressor blades...

Anyone know if there is some direct coorelation or at least good estimation of the effect of a given amount of backpressure on a turbo motor? I'm talking about back pressure AFTER the turbo. Something like 2.5psi of back pressure equals 5% loss of HP over 0psi of back pressure (open turbo)...