Volo chip set

**Nowhereman** · 11-29-2011, 08:06 AM

I just purchased a Volo chip set that splices into your ODB2 connector.
It will arrive on Thursday.
I will install and test it vs stock.
Stay tuned..

**2ManySS's** · 11-29-2011, 03:24 PM

That is nothing more than a 0-5,6K ohm potentiometer which can be had at Radio Shack for about $1.95.

**Nowhereman** · 11-29-2011, 03:35 PM

Originally Posted by 2ManySS's

That is nothing more than a 0-5,6K ohm potentiometer which can be had at Radio Shack for about $1.95.

Really... How can a potentiometer have an effect on fuel delivery?
When looking at the unit, I see a number of DIPs and few other ICs on a circuit board..

**2ManySS's** · 11-30-2011, 01:14 PM

That thing splices into the IAT wires.

Looking at it, it has a knob to turn, that's the potentiometer.
Dip switches?? Without having one in hand, well??

Hooking into the OAT lines means it a tricker for IAT input.
If the IAT see's a colder temp it will try to command a richer fuel curve and more timing based on a lower IAT temp.
Resisitors have been used for years to trick the IAT into this mess. But if the real ambient air temp ifs high outside, much higher than the resistor setting when first installed it will try to command a timing curve that will induce pinging which the knock sensor will detect and pull it back out. Same thing on the fuel side. If the trick commands a richer tune and the 02 sensors thinks its too one sided, it'll pull the fuel back to normal.
Problem is with these things is their less than $5 to make and they sell them for much more and really if used properly, which they can be, it only adds maybe 9 ponies tops.
If not used properly, they can make the car slower than it was before.

Casper Electronics used to be the guys selling these gimmicks until a few learned whay it was they were doing.
Want a tune, get a real one!!!

**Spikito** · 11-30-2011, 02:37 PM

^^ this guy

**Nowhereman** · 11-30-2011, 04:02 PM

Well, I'm looking at it and I see no pot knob, just some DIPs and some resistor network.
You sure your not doing the POT thing....LOL

**Nowhereman** · 12-08-2011, 05:48 AM

I put about 120 miles on it now and I must say I'm impressed.
More low to mid torque increase, idle and starting are real nice.
On decel the car does not burble as much but it smoother sounding; almost like an electric motor.
Haven't gone thru a tank yet but with the 120 on it I have picked up some mileage.
20% around town and the rest on the highway.
Installation was easy, the hardest part being fitting myself under the dash to do the install.
My best barometer has always been my wife.
When she feels the changes to the car when sitting there while I drive.
She liked it and said if feels like the engine is bigger and has more manners. LOL
So for now, I think it was a good $80 spent and if I see some substantial gains in fuel mileage, it will be well worth it.
Should pay for itself shortly then.

**Smittro** · 12-08-2011, 06:17 AM

Return it and spend the $150.00..

TunedByFrost.com - Products

**Nowhereman** · 12-08-2011, 07:18 AM

Originally Posted by Smittro

Return it and spend the $150.00..

TunedByFrost.com - Products

It only cost $80.. you want me to buy 2 of them? LOL

**Knight** · 12-08-2011, 08:15 AM

It's better than paying to rebuild the engine. Chips, handheld tuners, ect., are a waste for our cars, and usually end up causing more harm than good. I'd be real interested to see what your A/F ratio is at....

**Nowhereman** · 12-08-2011, 11:01 AM

Originally Posted by Knight

It's better than paying to rebuild the engine. Chips, handheld tuners, ect., are a waste for our cars, and usually end up causing more harm than good. I'd be real interested to see what your A/F ratio is at....

Engine temp is the same, no noticeable ping.
I'll see about my A/F ratio at my friends shop.