Still trying to get a decent 0-60 video and well frankly I just cant make one so watch this blooper video instead.

8psi at the compressor 6.5psi at the manifold. 4 gallons of 93 octance premium plus 2 bottles of snake oil octane booster for shiggles. 32 degree IATs and .75degrees retard per psi:

ImageShack® - Online Photo and Video Hosting - watch here



Of course everytime I do that I just think about the fact it doen't cost me $5 worth of nitrous anymore and I feel much better.

 

This one is even more hilarious and shows what hellish experience it is to tune the gremlins out of the ecu. I actually get good traction but right before 40 mph I get a fuel/spark cut and then at 60 mph I get another. Only the second time the ecu fails to read the immobilizer code during the fuel/spark cut so the entire dash lights up like a Christmas tree, shuts down the engine, and forces me to drop the camera, shift to neutral, and restart the engine. What fun!

ImageShack® - Online Photo and Video Hosting

The check engines codes were just the imobilizer failure code and my persistent egr flow code. Nothing exciting.

 

Ok, pardon me. Serious non-mechanic question... that is, if you would painfully indulge me. (yes, I'm talking barely know much more than checking/changing oil, cleaning battery terminals, cosmetic mods, etc... you get the picture)

Why a turbo instead of a supercharger? Is my understanding of the two completely flawed when I assume the supercharger would be an across the board boost, as opposed to the more limited-in-comparison turbo?

Again, forgive me if my question seems laughable, even moronic to you seriously knowledgeable mech-heads. I claim to know little or nothing, except the little I've read here and on other sites/forums. Even then my understanding remains, at this point, severely limited.

Thanks!

 

I could tell you but if you google turbo vs supercharger you might learn some really interesting stuff!

 

1st GE8 turbo... Nice!

 

Actually, I wasn't asking for a lesson on the virtues of turbo/supercharger... I was only asking for a brief explanation of why YOU chose one over the other. You seem like a pretty darned crafty guy... I suppose if you wanted a supercharger you could have figured out a way to do it. (?)

If that would require a lengthy explanation, then no, I don't expect you or anyone to do my homework for me. I can Google just fine!

From what little I know, and again, my reasoning could be flawed, but I would personally rather have a supercharger KraftWerks: Home on my Fit than a turbo. But I wouldn't turn down what you're doing... I'd be glad to have one of those babies in my Fit.

Anyway, just curious why you chose one over the other, wasn't expecting an in-depth education on either.

Thanks again

 

More vids please! Subscribed

 

Kraftwerks isn't going to make a kit for the GE8. I never really understood why until I went through the motions myself. Now that I have, I can say with fairly good certainty that it isn't going to be hapening anytime soon.

Now, I did intially consider purchasing a Rotrex SC to go FI and to fab a bracket myself. This probably would have been easier but Rotrex units are not really going for less than $2000 anyway. My whole turbo build costs less than that. Now, there are other blowers besides the rotrex unit but very few are manufactured with compressor maps that would be suitable for such a small engine. So my initial decision simply came down to price and parts availability.

However, turbo is generally accepted as the superior option anyway. I make full boost (8psi) from 3k-redline. A supercharger on the other hand produces fixed amounts of boost at any given rpm. So at 3k I am making 8psi with a turbo and on a supercharger w/ an 8psi pulley I would only be making around 3.5 psi. Also the supecharger inherently produces less effective HP per unit of airflow because their is substaintaily more parasitic drag.

 

lol what tires are you using that reminds me of my mkv boosting 19psi on cheap all seasons lol.

 

awesome! just awesome! makes me want one so bad......only in my dreams for now...

 

Thanks... the curiosity appreciates the answer!

 

This is purely an example to explain the concept, so dont flame me for the numbers. To get 40hp extra from a supercharger may take 10hp to run it. So, you are stressing the engine 50hp more and using 50hp worth of extra fuel. A turbocharger is run by waste heat in the exhaust, so the power to run it is free. A properly designed installation does not create extra backpressure in the exhaust. 40hp extra may actually cost you only 35hp in extra fuel.

 

but in turn, doesn't a TC create way more heat than SC ?

both FI routes rock, both have downfalls... just jumping in, see what others have to say.

 

The main reasons I went with KWSC was traction drive planetary transmission, Hondata tuning, ease of installation and lower under hood temperatures... The only thing that I think has been a disappointment is the air intake temperatures... Some ducting with an electric fan mounted to the sides of the inter cooler protruding below the flow of hot air from the radiator should eliminate a great deal of the problem and methanol/water injection should take it down some more.. Going for wheels with 7" rims and 41mm offset causes a little bit of a throttle steer problem at full throttle and 38mm offset was pretty messed up due to the weight of the wheel center and the way it increased the torque steer even more... Screw that stance crap if you want a drivable car with boost kicked in. I don't know if I can keep up with what Lyon has put together once he has purged the gremlins from the ECU but I will still be playing with my car also in hopes of making more usable power...I'm not a sharp or as physically able as the younger guys with drive, determination and skill.

 

This is something that's going to vary from setup to setup but generally speaking turbos are more efficient at compressing air than superchargers (they make less heat) The only exception to that is a rotrex sc which has pretty ridiculous efficiency rates in the 80s-90s. All other (centrifugal, roots twin screw, etc. SCs are less efficient than a correctly sized turbo. Regardless, proper intercooling methods exist for all of them.

TC I cab only hope to still be as awesome as you when I start poking out some grey hairs. Getting old ain't for sissies.