About 10 years ago I got a DIY dyno where you use the weight of the car and estimated aero drag to determine HP and TQ.

It wasn't any where near $880.................



http://www.dynoplus.co.uk/roaddyno.shtml


I mainly have used it on my motorcycle.

Results are repeatable.

The absolute numbers may not be correct, but what you are looking for are improvements in the 'curve'.........

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

I have been wondering if t here was a product like that available.
Does not seem to be any price list on the web site .

Thanks for the heads up.

Brendan

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1963 AP5 Valiant 225 PB 904 Stock except extractors & 2 1/4 inch exhaust.


1962 S series valiant 225 PB auto. factory every thing. Full restoration job.
Currently on hold till AP5 is on the road.

Do some searching.

Before I bought the road dyno (I think it was about $150) I came across some DIY solutions that used sound files on PCs and math to do the dynos.

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Blipshift has the answer!

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"When you find a big kettle of crazy, it's best not to stir it." - Pointy-haired Boss

1964 Valiant V200, 225/Pushbutton 904
BBD, CAI, HEI, LBP, AC, AM/FM/USB, EIEIO

Yeh the blipshift looks good ,accurate too

A bit cheaper than this one.
http://www.dynomet.dk/en_whoarewe.htm

About $3k after doing the $ conversion!
A simple concept ,looks like an optical sensor and a timer counts rpm and calculates acceleration,you put in vehicle weight etc.
I did come across some of the software emsvitil mentioned.
I will read more about those later.
I like the concept of the device above.

perhaps the OP can find some use with one of these suggestions.

Brendan.

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1963 AP5 Valiant 225 PB 904 Stock except extractors & 2 1/4 inch exhaust.


1962 S series valiant 225 PB auto. factory every thing. Full restoration job.
Currently on hold till AP5 is on the road.

A few of us bought G-techs for 'street testing' a while back....the GPS unit would be easier to work with than calibrating the G-tech and finding a level road with no cops around...


-D.idiot

I want one of these for personal "testing"

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Yeah....Im the one who destroyed this rare, vintage automobile.....

. Was it useful?
Is this it?
http://www.gtechpro.com/ss_fanatic.html

Does anybody have one of these?
Does it work ok or junk?

Brendan

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1963 AP5 Valiant 225 PB 904 Stock except extractors & 2 1/4 inch exhaust.


1962 S series valiant 225 PB auto. factory every thing. Full restoration job.
Currently on hold till AP5 is on the road.

I have the older model of the SS before they changed a few things, I think Lou and a couple others had the basic version.

They did OK, for checking changes in performance and practicing for drag races on the back roads.

Our versions used accelerometers, which would give false data if the road wasn't level or had a tilt...

At least it was nice to be able to make some runs before the cops showed up and go home and download them to a computer and look at the graph and data of the run.

-D.idiot