Aero mods using RBL collision wrap

[dcb]

Originally Posted by Luxbg

This might be just what I need for my 7000 mile road trip next summer! Any idea where a layperson can buy the stuff?

<shameless plug>
http://opengauge.org/mpguino
</shameless plug>

There is a kit too, mentioned in the wiki, but I have not been following it:
MPGuino - EcoModder

[dcb]

BTW, sorry if the thread got hijacked there for a bit.

Anyway, I really like the clear shrink wrap idea, probably not the first time it has been done but it is right up my alley

Have you considered doing some coastdown testing? Just need a stopwatch for that and eliminates a lot of variables. (and yes it introduces some of its own, so just deal with it )

[pgfpro]

Originally Posted by SVOboy

Even if the MPGuino calibration is based on fill ups, basing it on several (or more) 10+ gallons fill ups is going going to give you much more accurate results than a some 100 mile runs.

Furthermore, even if the number is off, the relative numbers will be good for comparisons sake. So just go with it, I say. I didn't even calibrate mine, I just used a number from someone else and it's always been dead accurate.

*shrug*

10+ gallons fill ups is going going to give you much more accurate results than a some 100 mile runs.

Can we agree that this is true for both ways.

I just think to get the most accurate data. You need to empty the fuel tank and fuel lines. On a EFI car this can be done very easy. I do it all the time from a E85 fill to pump premium fill. Then put in 10 gallons of fuel and run it until its out of gas. Check you mileage. Have a 3 gallon container of fuel in your trunk and go home.

Ben I'm just very frustrated right now. I'm confused on what happen. I did three back to back test the same way and now this. Its got me baffled. I know that the car like all the mods but I have no idea what it just did in mileage.

[pgfpro]

Originally Posted by dcb

re: mpguino, The main variables (which you can set through a menu) are:
microseconds per gallon
vss pulses per mile
injdelay

To calibrate with a pump, you do need to be very consistent, some details here:
Mpguino calibration - EcoModder , though there are certainly other ways to calibrate, this is the general purpose method, and used to good effect by many folks.

re: pulse width, each injector pulse is measured in the realm of microseconds, and will have a constant (injdelay) subtracted to account for injector opening time.

So the modified pulse widths and the vss pulse counts are accumulated and displayed as instant, tank, and current "trips". Current being useful for short term experiments also (resets after car/engine stop for 7 minutes/whatever you set it to).

System voltage can affect accuracy as the injectors open more quickly or slowly, so some recalibrating is in order if you remove your alternator, i.e.. Don't know that fuel pump voltage matters as much as the regulator pressure setting though, sure "It Depends").

Quite a few honda users here, don't know about turbo though, but even if you only get a relative reading it is useful for ABA testing, or just plain "beating your high score".

PGFPro, Does your del sol maintain a reasonably constant pressure differential between the fuel rail and the manifold?

Thanks for the info.

PGFPro, Does your del sol maintain a reasonably constant pressure differential between the fuel rail and the manifold?

Yes its boost/vac referenced.

[SVOboy]

I understand your frustration, it's happened to me lots of times before, even with instrumentation and things like that.

I think perhaps Dave's suggestion of coastdown testing may be best. Darin does it by filming his speedo so he can go back afterwards and time the video to see exactly how long the coast took, and I figure this may be the best and most repeatable way for your to test out your new aeromods

[pgfpro]

Originally Posted by dcb

BTW, sorry if the thread got hijacked there for a bit.

Anyway, I really like the clear shrink wrap idea, probably not the first time it has been done but it is right up my alley

Have you considered doing some coastdown testing? Just need a stopwatch for that and eliminates a lot of variables. (and yes it introduces some of its own, so just deal with it )

Thanks Man!!!

I need to look into that. I'm a tuner that makes things go fast so this is still new to me as far as areo mods go. In drag racing I just add more power. That's the easy part.

[pgfpro]

Originally Posted by Luxbg

This might be just what I need for my 7000 mile road trip next summer! Any idea where a layperson can buy the stuff?

You can get it at any auto body supplies store ask for RBL crash wrap.

[pgfpro]

Ok time to keep my chin up and go for it.

My plan is to drive to Portland Oregon and back. 766 miles round trip.

But first I'm going to drain all the fuel out. Then add a gallon to get me to the station where I will fill up.

I want to get this kamm back thing done!!!

My plans are to use the crash wrap as a form then I will spray on a new Kevlar polyester filler coating that will become the shell. Then attach it with double side tape. Then cut out a window and attach a lexan piece. I will use the crash wrap on the front area again. I need to come up with an idea there?

[pgfpro]

Originally Posted by greasemonkee

Potential?

I just realize the mod you made to it. LOL

Would this be better way, to extend it out past the deck lid?

[Xist]

So, what happened?!